CN104594190A

CN104594190A - Bridge seamless telescopic device and construction method of device

Info

Publication number: CN104594190A
Application number: CN201510083297.7A
Authority: CN
Inventors: 袁卓亚; 王卫山; 刘永健; 杜进生; 蒲广宁; 石雄伟; 陈军; 宋彬; 王旭; 侯登峰; 高诣民; 舒涛
Original assignee: Xian Highway Research Institute
Current assignee: Xian Highway Research Institute
Priority date: 2015-02-16
Filing date: 2015-02-16
Publication date: 2015-05-06
Anticipated expiration: 2035-02-16
Also published as: CN104594190B

Abstract

The invention discloses a bridge seamless telescopic device and a construction method of the device. The bridge seamless telescopic device comprises a main beam span telescopic device and a bridge abutment telescopic device, wherein the main beam span telescopic device comprises a first prefabricated telescopic component and a first telescopic joint filler filling layer; the bridge abutment telescopic device comprises a second prefabricated telescopic component and a second telescopic joint filler filling layer; the first prefabricated telescopic component and the second prefabricated telescopic component are formed by reinforced joint-crossing plates and wave-shaped telescopic plates. A construction method of a telescopic device to be repaired comprises the following steps: cleaning an original bridge telescopic device, constructing a preserved mounting slot, constructing a sliding layer, assembling and mounting prefabricated telescopic components, and constructing telescopic joint filler filling layers. A construction method of a telescopic device to be constructed comprises the following steps: prefabricating and processing prefabricated telescopic components, assembling the prefabricated telescopic components on site, constructing a sliding layer, mounting prefabricated telescopic components, paving a structure and constructing telescopic joint filler filling layers. The bridge seamless telescopic device is reasonable in design, convenient to construct and high in using effect, and can be used for solving various problems of the existing telescopic device.

Description

A kind of bridge seamless process stretching device and construction method thereof

Technical field

The invention belongs to Bridge Expansion Joints Coustruction Technology field, especially relate to a kind of bridge seamless process stretching device and construction method thereof.

Background technology

Bridge extension joint be for make vehicle smoothly pass bridge floor and meet bridge floor distortion needs, at the device that bridge floor expansion joint place is arranged.Stretching device is link the weakest in bridge construction, because stretching device directly bears the percussion of wheel cyclic reverse loading, even if there is very small out-of-flatness, this place will be made under carload effect to be severely affected effect, the most easily to be destroyed and the replacing that needs repairing.Slightly defect and deficiency in design or construction, will cause its early stage damage, this not only directly makes bridge passenger feel uncomfortable, lacks the sense of security, sometimes also can have influence on the normal use of bridge construction itself.Cause the general damaged reason of stretching device, except the magnitude of traffic flow increases, heavy vehicle increases (percussion obviously increases) outward, design, construction and maintenance aspect also can not be ignored, moreover bridge floor suddenlys change in expansion joint position rigidity, again under the repeated action of fast running vehicular load, its application life is had a strong impact on.Thus, bridge extension joint rapid wear problem is a great problem of highway communication always.To sum up, due to shrinkage joint long term exposure in an atmosphere, environment for use is severe, and directly subjects traffic loading, adds the defect that design, construction and maintenance aspect exist, and makes the very easily damaged destruction also thereupon causing bridge floor and beam and slab structure of stretching device; Meanwhile, the inefficacy at shrinkage joint can increase vehicular impact power again, worsens driving conditions and bridge force-bearing, forms vicious circle.

Conventional stretching device is broadly divided into five large classes by mode of transfer force and construction features, that is: shearing, the modulus supporting type of dock, steel supporting type, building rubber compound and seamless expansion-contraction devices (containing bridge floor continuous structure).But there is the problems such as install inconvenience, stress performance and durability is poor, application life is shorter in existing bridge extension joint, therefore shrinkage joint rapid wear problem is not still solved well at present all to some extent.Best shrinkage joint is jointless, and thus bridge seamless process technology produces and paid close attention to.But at present, the research for jointless construction is scarcely out of swaddling-clothes, and form of structure is less, and application is restricted.

Summary of the invention

Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, provide a kind of structure simple, reasonable in design and easy construction, bridge seamless process stretching device that result of use is good.

For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of bridge seamless process stretching device, it is characterized in that: comprise girder on the girder shrinkage joint being laid in institute's construction bridges across a stretching device and the Abutment stretching device that is laid on the abutment shrinkage joint of institute's construction bridges, the girder two ends of institute's construction bridges are supported on two abutments respectively, and girder is along vertical bridge to being divided into M beam section from front to back, wherein M is positive integer and M >=2, and each described beam Duan Shangjun is covered with deck installation structure; The upper outside of described abutment is covered with road pavement layer and its upper inner is abutment revealed section; Described girder shrinkage joint is the shrinkage joint stayed between adjacent two the described beam sections in front and back, each described girder shrinkage joint is provided with a described girder across a stretching device; The shrinkage joint stayed between the girder that described abutment shrinkage joint is institute's construction bridges and abutment, each described abutment shrinkage joint is provided with a described Abutment stretching device;

Described girder comprises the first premoulded expansion assembly across a stretching device and is filled in the first Expansion Joint filler packed layer above described first premoulded expansion assembly, and described first premoulded expansion assembly is laid on described girder shrinkage joint; The the first reserved mounting groove installed for described first premoulded expansion assembly is formed between the deck installation structure that adjacent two the described beam sections in front and back spread, spacing before and after the vertical bridge of the described first reserved mounting groove is greater than to length between adjacent two described beam sections, described first Expansion Joint filler packed layer is filled in the described first reserved mounting groove and it is connected between deck installation structure that beam section described in former and later two spreads;

Described Abutment stretching device comprises the second premoulded expansion assembly and is filled in the second Expansion Joint filler packed layer above described second premoulded expansion assembly, and described second premoulded expansion assembly is laid on described abutment shrinkage joint; The the second reserved mounting groove installed for described second premoulded expansion assembly is formed between described road pavement layer and the described deck installation structure inside it, the vertical bridge of the described second reserved mounting groove is greater than the spacing between girder and abutment to length, and described second Expansion Joint filler packed layer is filled in the described second reserved mounting groove and it is connected to described road pavement layer and between the described deck installation structure of inner side;

The sections be positioned in multiple described beam section below the described first reserved mounting groove and the described second reserved mounting groove is girder revealed section, and sliding layer is equipped with on described girder revealed section upper berth; Described Slipping layers is between described girder revealed section and described first premoulded expansion assembly or the second premoulded expansion assembly; Described first Expansion Joint filler packed layer is all mutually concordant with the upper surface of described road pavement layer with described deck installation structure with the upper surface of the second Expansion Joint filler packed layer;

Described first premoulded expansion assembly comprises the waveform expansion and contraction plate that put more energy into type transverse joint plate and two are connected to type transverse joint plate both sides of putting more energy into, and the structure of two described waveform expansion and contraction plates is identical; Described second premoulded expansion assembly comprises put more energy into type transverse joint plate and one and to be connected to inside type transverse joint plate of putting more energy into and the waveform expansion and contraction plate be positioned at above described girder revealed section; Described type transverse joint plate and the waveform expansion and contraction plate of putting more energy into all is laid along direction across bridge;

Described type transverse joint plate of putting more energy into comprises flat plate, is multiplely laid in open pore steel plate rib on flat plate from left to right along direction across bridge and multiple tracks is through at the connecting reinforcement laid on multiple described open pore steel plate rib and along direction across bridge, multiple described open pore steel plate rib all along vertical bridge to laying and its structure and size are all identical, connecting reinforcement described in multiple tracks is all laid along direction across bridge, and connecting reinforcement described in multiple tracks is all laid on same plane; Described open pore steel plate rib is be the elongate steel plate of vertical runs with flat plate, and the middle part of open pore steel plate rib has multiple respectively for the through hole that connecting reinforcement described in multiple tracks passes from front to back; Connecting reinforcement composition frame type reinforcing structure described in multiple described open pore steel plate rib and multiple tracks; Described flat plate straddles the top at described girder shrinkage joint or described abutment shrinkage joint;

Before and after flat plate both sides in described first premoulded expansion assembly are supported in respectively adjacent two described beam sections girder revealed section on the sliding layer that spreads, described in the multiple tracks in described first premoulded expansion assembly, connecting reinforcement is all embedded in the first Expansion Joint filler packed layer; Inside and outside flat plate in described second premoulded expansion assembly, both sides are supported on sliding layer and described abutment revealed section that described girder revealed section spreads respectively, and described in the multiple tracks in described second premoulded expansion assembly, connecting reinforcement is all embedded in the second Expansion Joint filler packed layer;

Described waveform expansion and contraction plate is provided with multiple WELDING STUDS, and the side of described waveform expansion and contraction plate and type transverse joint plate of putting more energy into are fastenedly connected and its opposite side is anchored on the described deck installation structure that is positioned at below it by multiple anchoring piece; Multiple described WELDING STUDS in described first premoulded expansion assembly is all embedded in the first Expansion Joint filler packed layer, and the waveform expansion and contraction plate in described first premoulded expansion assembly is fastenedly connected by the first Expansion Joint filler packed layer of multiple described WELDING STUDS and the side of being located thereon and is integrated; Multiple described WELDING STUDS in described second premoulded expansion assembly is all embedded in the second Expansion Joint filler packed layer, and the waveform expansion and contraction plate in described second premoulded expansion assembly is fastenedly connected by the second Expansion Joint filler packed layer of multiple described WELDING STUDS and the side of being located thereon and is integrated.

Above-mentioned a kind of bridge seamless process stretching device, it is characterized in that: described deck installation structure comprises the concrete bridge deck pavement layer of mating formation in beam section and the asphalt concrete pavement of mating formation on concrete bridge deck pavement layer, and multiple described anchoring piece is all anchored on concrete bridge deck pavement layer; Described road pavement layer comprises the rigid pavement pave-load layer of mating formation on abutment and the asphalt concrete pavement surface of mating formation on the pave-load layer of rigid pavement.

Above-mentioned a kind of bridge seamless process stretching device, it is characterized in that: described waveform expansion and contraction plate comprise corrugated sheet steel, for connect type transverse joint plate of putting more energy into vertical junction plate and for corrugated sheet steel being anchored in the side plate on described deck installation structure, the side that described corrugated sheet steel is connected with the type transverse joint plate of putting more energy into is connection side and its opposite side is anchored side; Described side plate is connected with the anchored side of corrugated sheet steel, and side plate is anchored on described deck installation structure by multiple described anchoring piece; Described vertical junction plate is positioned at the connection side of corrugated sheet steel, and described corrugated sheet steel is connected with the type transverse joint plate of putting more energy into by vertical junction plate; In described first premoulded expansion assembly flat plate both sides above be provided with a vertical wing plate for being fastenedly connected with vertical junction plate, in described second premoulded expansion assembly, the inside front of flat plate is provided with a vertical wing plate and is anchored on abutment by multiple described anchoring piece outside it.

Above-mentioned a kind of bridge seamless process stretching device, is characterized in that: the upper level of the multiple described open pore steel plate rib that described flat plate is laid all with on it to lay the upper level of vertical wing plate identical; The upper level of two described vertical wing plates set on flat plate in described first premoulded expansion assembly is identical, in described first premoulded expansion assembly the vertical junction plate of two described waveform expansion and contraction plates respectively with two described vertical wing plate be close to, and the vertical junction plate of two described waveform expansion and contraction plates is fastenedly connected respectively by multiple fastening bolt and two described vertical wing plates; Vertical wing plate set on the vertical junction plate of waveform expansion plate and flat plate in described second premoulded expansion assembly is close to and the two is fastenedly connected by multiple fastening bolt.

Above-mentioned a kind of bridge seamless process stretching device, is characterized in that: all pad between each crest of described corrugated sheet steel and sliding layer and an elastic spacer is housed; The multiple described WELDING STUDS that described waveform expansion and contraction plate is laid is quincunx laying, and multiple described WELDING STUDS is all positioned on the crest of corrugated sheet steel.

Above-mentioned a kind of bridge seamless process stretching device, it is characterized in that: described sliding layer is made up of multiple sliding panel, multiple described sliding panel is laid from left to right along direction across bridge direction, and described sliding panel is rectangular slab and it is along vertical bridge to laying; Described connecting reinforcement is indented bars; The structure of connecting reinforcement described in multiple tracks is all identical with size; Described through hole is circular hole, and the diameter of described connecting reinforcement is less than the aperture of circular hole.

Above-mentioned a kind of bridge seamless process stretching device, is characterized in that: described first premoulded expansion assembly is the first integrated support structure or the first spliced component; Described first integrated support structure is made up of put more energy into type transverse joint plate and two waveform expansion and contraction plates; Described first spliced component is spliced by multiple first splicing sections, the structure of multiple described first splicing sections all identical and its lay from left to right along direction across bridge, each described first splicing sections is by put more energy into type transverse joint plate and two waveform expansion and contraction plates composition; In described first spliced component, the quantity of the first splicing sections is 2N+1, and wherein N is positive integer and N >=1; 2N+1 described first splicing sections comprises first intermediate section and 2N the first sidepiece sections; 2N described first sidepiece sections comprises and to be N number ofly positioned on the left of first on the left of the first intermediate section sections and to be N number ofly positioned at sections on the right side of first on the right side of the first intermediate section, the symmetrical laying of sections on the right side of sections and N number of described first on the left of in the of N number of described first; Be positioned in sections on the left of in the of adjacent two described first right side first on the left of sections be pressed in be positioned at left side first on the left of on sections, be positioned in sections on the right side of in the of adjacent two described first left side first on the right side of sections be pressed in be positioned at right side first on the right side of on sections;

Described second premoulded expansion assembly is the second integrated support structure or the second spliced component; Described second integrated support structure is made up of put more energy into type transverse joint plate and a waveform expansion and contraction plate; Described second spliced component is spliced by multiple second splicing sections, the structure of multiple described second splicing sections all identical and its lay from left to right along direction across bridge, each described second splicing sections is by put more energy into type transverse joint plate and waveform expansion and contraction plate composition; In described second spliced component, the quantity of the second splicing sections is 2N+1; 2N+1 described second splicing sections comprises second intermediate section and 2N the second sidepiece sections; 2N described second sidepiece sections comprises and to be N number ofly positioned on the left of second on the left of described second intermediate section sections and to be N number ofly positioned at sections on the right side of second on the right side of described second intermediate section, the symmetrical laying of sections on the right side of sections and N number of described second on the left of in the of N number of described second; Be positioned in sections on the left of in the of adjacent two described second right side second on the left of sections be pressed in be positioned at left side second on the left of on sections, be positioned in sections on the right side of in the of adjacent two described second left side second on the right side of sections be pressed in be positioned at right side second on the right side of on sections.

Above-mentioned a kind of bridge seamless process stretching device, is characterized in that: described flat plate is rectangle, and described open pore steel plate rib is in vertically to laying, and connecting reinforcement described in multiple tracks is all laid on same plane, multiple described WELDING STUDS all in vertical to laying; The outside of described flat plate, open pore steel plate rib and waveform expansion and contraction plate is all enclosed with one deck pitch;

In described first premoulded expansion assembly, the width of flat plate is greater than the maximum open amount at residing girder shrinkage joint, and in described second premoulded expansion assembly, the width of flat plate is greater than the maximum open amount at residing abutment shrinkage joint; The structure of the multiple described open pore steel plate rib of described first premoulded expansion assembly is all identical with size and it is rectangle steel plate, and the structure of the multiple described open pore steel plate rib of described second premoulded expansion assembly is all identical with size and it is right-angled trapezium steel plate;

Described first premoulded expansion assembly also comprises multiple positive stop be laid in bottom flat plate, and multiple described positive stop to be laid and it is all between the girder revealed section of adjacent two the described beam sections in front and back from front to back along the center line of flat plate.

Simultaneously, the invention also discloses a kind of method step simple, realize convenient and the construction period is short, the bridge seamless process stretching device construction method of the stretching device stress performance of construction molding and good endurance, it is characterized in that: institute's construction bridges be the built bridge need repaired bridge extension joint maybe need to bridge extension joint construct at bridge construction beam, institute's construction bridges stretching device is the stretching device to be repaired being positioned at built bridge or the stretching device to be onstructed be located on bridge construction beam;

When institute's construction bridges stretching device is stretching device to be repaired, the shrinkage joint residing for described stretching device to be repaired is shrinkage joint to be repaired, and described shrinkage joint to be repaired is girder shrinkage joint or the abutment shrinkage joint of described built bridge; Wherein, when described shrinkage joint to be repaired is girder shrinkage joint, the work progress of described stretching device to be repaired is as follows:

Step 1011, original bridge extension joint are cleared up: clear up original bridge extension joint at described shrinkage joint to be repaired;

Step 1012, reserved mounting groove construction: the deck installation structure of both sides before and after described shrinkage joint to be repaired is cut respectively, obtains the girder revealed section of two described beam sections of both sides, described shrinkage joint to be repaired;

In this step, the region that cuts of described deck installation structure is the first reserved mounting groove supplying the first premoulded expansion assembly of described stretching device to be repaired to install;

Step 1013, sliding layer are constructed: sliding layer that the girder revealed section of two described beam sections in step 1012 is all mated formation;

Step 1014, the first premoulded expansion assembly Assembling and installation: each component of described first premoulded expansion assembly good for prefabrication is transported to described built bridge present position and assembles, obtain the described first premoulded expansion assembly of assembled formation, the size of described first premoulded expansion assembly with in step 1012 the first consistent size reserving mounting groove of constructing; After having assembled, the described first premoulded expansion assembly of assembled formation is mounted in the first reserved mounting groove of constructing in step 1012;

Step 1015, the first Expansion Joint filler packed layer construction: after described first premoulded expansion assembly installation, fill Expansion Joint filler in described reserved mounting groove in step 1012, and obtain the first Expansion Joint filler packed layer of construction molding; Described first Expansion Joint filler packed layer is positioned at above described first premoulded expansion assembly, and the upper surface of the first Expansion Joint filler packed layer with on the girder of described built bridge to spread the upper surface of deck installation structure mutually concordant;

When described shrinkage joint to be repaired is abutment shrinkage joint, the work progress of described stretching device to be repaired is as follows:

Step 1021, original bridge extension joint are cleared up: clear up original bridge extension joint at described shrinkage joint to be repaired;

Step 1022, reserved mounting groove construction: the deck installation structure and road pavement layer that are positioned at both sides, described shrinkage joint to be repaired are cut respectively, obtains the girder revealed section and the abutment revealed section that are positioned at both sides, described shrinkage joint to be repaired;

In this step, the region that cuts of described deck installation structure and described road pavement layer is the second reserved mounting groove supplying the second premoulded expansion assembly of described stretching device to be repaired to install;

Step 1023, sliding layer are constructed: sliding layer that girder revealed section described in step 1022 is mated formation;

Step 1024, the second premoulded expansion assembly Assembling and installation: each component of described second premoulded expansion assembly good for prefabrication is transported to described built bridge present position and assembles, obtain the described second premoulded expansion assembly of assembled formation, the size of described second premoulded expansion assembly with in step 1022 the second consistent size reserving mounting groove of constructing; After having assembled, the described second premoulded expansion assembly of assembled formation is mounted in the second reserved mounting groove of constructing in step 1022;

Step 1025, the second Expansion Joint filler packed layer construction: after described second premoulded expansion assembly installation, fill Expansion Joint filler in reserved mounting groove described in step 1022, and obtain the second Expansion Joint filler packed layer of construction molding; Described second Expansion Joint filler packed layer is positioned at above described second premoulded expansion assembly, and the upper surface of the second Expansion Joint filler packed layer with on girder spread deck installation structure with on abutment the upper surface homogeneous phase of the pave-load layer that paves concordant;

When institute's construction bridges stretching device is stretching device to be onstructed, the shrinkage joint residing for described stretching device to be onstructed is shrinkage joint to be onstructed, and described shrinkage joint to be onstructed is described at the girder shrinkage joint of bridge construction beam or abutment shrinkage joint; Wherein, when described shrinkage joint to be onstructed is girder shrinkage joint, the work progress of described stretching device to be onstructed is as follows:

Step 2011, the prefabricated processing of the first premoulded expansion assembly: according to the processing dimension designed in advance, factory to shrinkage joint to be onstructed place the first premoulded expansion assembly is installed each component process respectively; Adopt haulage device by each component of the described first premoulded expansion assembly of machine-shaping again, be transported to the described construction location at bridge construction beam;

Wherein, the first premoulded expansion assembly that shrinkage joint to be onstructed place installs is the first premoulded expansion assembly of described stretching device to be onstructed;

Step 2012, the first premoulded expansion assembly Assembling: assemble each component of the first premoulded expansion assembly described in step 2011, obtain the described first premoulded expansion assembly of assembled formation;

Step 2013, sliding layer are constructed: according to the vertical bridge of the first premoulded expansion assembly described in step 2012 to length, and in conjunction with both sides before and after shrinkage joint to be onstructed two beam sections between spacing, the vertical bridge of the girder revealed section of two described beam sections is determined to length; Afterwards, according to the vertical bridge of the girder revealed section of determined two described beam sections to length, sliding layer that the girder revealed section of two described beam sections is mated formation respectively;

Step 2014, the first premoulded expansion assembly installation and deck installation structure and the first Expansion Joint filler packed layer are constructed:

Before and after shrinkage joint to be onstructed both sides two beam sections on to mat formation respectively described deck installation structure, the first premoulded expansion assembly described in installation steps 2012 on the girder revealed section of two described beam sections simultaneously, and Expansion Joint filler is filled above installation first premoulded expansion assembly, obtain the first Expansion Joint filler packed layer of construction molding; Between the deck installation structure that described first premoulded expansion assembly spreads in two described beam sections, described first Expansion Joint filler packed layer and the described deck installation structure spread in two described beam sections of bridge construction beam connect as one, and the upper surface of described Expansion Joint filler packed layer and described two described beam sections at bridge construction beam to spread the upper surface of deck installation structure mutually concordant;

When described shrinkage joint to be onstructed is abutment shrinkage joint, the work progress of described stretching device to be onstructed is as follows:

Step 2021, the prefabricated processing of the second premoulded expansion assembly: according to the processing dimension designed in advance, factory to shrinkage joint to be onstructed place the second premoulded expansion assembly is installed each component process respectively; Adopt haulage device by each component of the described second premoulded expansion assembly of machine-shaping again, be transported to the described construction location at bridge construction beam;

Wherein, the second premoulded expansion assembly that shrinkage joint to be onstructed place installs is the second premoulded expansion assembly of described stretching device to be onstructed;

Step 2022, the second premoulded expansion assembly Assembling: assemble each component of the second premoulded expansion assembly described in step 2021, obtain the described second premoulded expansion assembly of assembled formation;

Step 2023, sliding layer are constructed: according to the vertical bridge of the second premoulded expansion assembly described in step 2022 to length, and in conjunction with the spacing between girder and abutment, determine to length the vertical bridge of the girder revealed section of girder; Afterwards, according to the vertical bridge of determined girder revealed section to length, sliding layer that described girder revealed section is mated formation;

Step 2024, the second premoulded expansion assembly install and deck installation structure, road pavement layer and the second Expansion Joint filler packed layer are constructed: described deck installation structure that beam section adjacent inside abutment is mated formation, and to mat formation described road pavement layer in the upper outside of abutment

Simultaneously the second premoulded expansion assembly described in installation steps 2022 on the girder revealed section of adjacent beams section and abutment inside abutment, and Expansion Joint filler is filled above the second premoulded expansion assembly of installation, obtain the second Expansion Joint filler packed layer of construction molding;

Between the road pavement layer that the upper outside of the deck installation structure that described second premoulded expansion assembly spreads on girder and abutment spreads, described second Expansion Joint filler packed layer and described deck installation structure and described road pavement layer connect as one, and the upper surface of described second Expansion Joint filler packed layer is concordant with described road pavement layer upper surface homogeneous phase with described deck installation structure.

Said method, it is characterized in that: the asphalt concrete pavement that described built bridge and the described deck installation structure spread on the girder of bridge construction beam include concrete bridge deck pavement layer and mat formation on concrete bridge deck pavement layer, multiple described anchoring piece is all anchored on concrete bridge deck pavement layer; Described built bridge and the described road pavement layer spread on the abutment of bridge construction beam include the rigid pavement pave-load layer of mating formation on abutment and the asphalt concrete pavement surface of mating formation on the pave-load layer of rigid pavement;

When carrying out the construction of reserved mounting groove in step 1012, the concrete bridge deck pavement layer that the girder revealed section to both sides before and after described shrinkage joint to be repaired spreads and asphalt concrete pavement all cut;

When carrying out the construction of reserved mounting groove in step 1022, the concrete bridge deck pavement layer that described girder revealed section spreads and asphalt concrete pavement are all cut, the rigid pavement pave-load layer that described abutment revealed section spreads and asphalt concrete pavement surface is all cut simultaneously;

Before carrying out sliding layer construction in step 1013, first respectively leveling is carried out to the upper surface of the girder revealed section of two described beam sections in step 1012;

Before carrying out sliding layer construction in step 1023, first leveling is carried out to the upper surface of the revealed section of girder described in step 1022;

Before carrying out sliding layer construction in step 2013, first respectively leveling is carried out to the upper surface of the girder revealed section of two described beam sections;

Before carrying out sliding layer construction in step 2023, first leveling is carried out to the upper surface of described girder revealed section;

Carry out in step 2,014 first premoulded expansion assembly install and deck installation structure and the first Expansion Joint filler packed layer are constructed time, concrete bridge deck pavement layer that two beam sections of elder generation both sides before and after shrinkage joint to be onstructed are mated formation respectively; After concrete bridge deck pavement layer has been constructed, the first premoulded expansion assembly described in step 2012 is installed; After described first premoulded expansion assembly installation, asphalt concrete pavement is mated formation, and while asphalt concrete pavement mats formation, the first Expansion Joint filler packed layer is constructed;

Carry out the second premoulded expansion assembly in step 2024 to install and deck installation structure, road pavement layer and Expansion Joint filler packed layer when constructing, beam section first inside shrinkage joint to be onstructed to be mated formation concrete bridge deck pavement layer, the rigid pavement pave-load layer and the upper outside of abutment outside shrinkage joint to be onstructed is mated formation; After concrete bridge deck pavement layer and rigid pavement pave-load layer have been constructed, the second premoulded expansion assembly described in step 2022 is installed; After described second premoulded expansion assembly installation, asphalt concrete pavement and asphalt concrete pavement surface are mated formation respectively, and while asphalt concrete pavement and asphalt concrete pavement surface mat formation, the second Expansion Joint filler packed layer is constructed.

The present invention compared with prior art has the following advantages:

1, structure simple, reasonable in design and drop into construction cost lower, the the first premoulded expansion assembly adopted and the second premoulded expansion assembly mainly comprise the components such as flat plate, open pore steel plate rib, connecting reinforcement, waveform expansion and contraction plate, WELDING STUDS, elastic cushion block, and each component form is simple, for conventional components in engineering, the connected mode of each component is bolt or welding, and wherein flat plate, open pore steel plate rib and connecting reinforcement form type transverse joint plate of putting more energy into.

2, the first premoulded expansion assembly is made up of put more energy into type transverse joint plate and two waveform expansion and contraction plates being connected to type transverse joint plate both sides of putting more energy into, second premoulded expansion assembly is made up of with the waveform expansion and contraction plate be connected to inside type transverse joint plate of putting more energy into type transverse joint plate of putting more energy into, each component of the first premoulded expansion assembly and the second premoulded expansion assembly is all prefabricated in the factory, machining accuracy is easy to ensure, and process easy, need assemble each component of machine-shaping for on-the-spot, actual installation is easy.

Further, also the first premoulded expansion assembly and the second premoulded expansion assembly can be divided multiple standard sections (i.e. multiple first splicing sections or multiple second splicing sections) along bridge deck width direction, prefabrication is simple, and in-site installation is convenient.Wherein, the type transverse joint plate of putting more energy into straddles between two beam sections or straddles between girder and abutment, and its structure is simple.Reasonable in design and stressed effect good, this type transverse joint plate of putting more energy into comprises troughing plate, multiplely be laid in open pore steel plate rib in troughing plate from left to right along direction across bridge and multiple tracks is through at the connecting reinforcement laid on multiple open pore steel plate rib and along direction across bridge, multiple open pore steel plate rib and multiple tracks connecting reinforcement composition are positioned at the frame type reinforcing structure of troughing plate, and multiple tracks connecting reinforcement is all embedded in Expansion Joint filler packed layer, the processing of frame type reinforcing structure is easy and result of use good, effectively can strengthen the rigidity of bridge floor in expansion joint position, and dilatation demand can be met, bridge floor can be effectively avoided to suddenly change in expansion joint position generation rigidity.

3, reliable construction quality, the crudy of the first premoulded expansion assembly that prefabrication is shaping and the second premoulded expansion assembly is easy to ensure and is convenient to transport, effectively can avoid construction error.

4, input cost is lower, and the Expansion Joint filler adopted is conventional Load materials, easily obtains, making, convenient transportation, and input cost is lower; Further, Expansion Joint filler and deck paving formation of structure non-individual body, make driving steadily comfortable, avoids faulting of slab ends, jumps the generation of the situation such as car, impact.

5, the first premoulded expansion assembly and the second premoulded expansion assembly all both can adopt integrated support structure, also can adopt spliced component, being prefabricated in the factory in advance processes, and crudy is easy to ensure and is convenient to transport, effectively can avoid construction error, and in-site installation is convenient.And, adaptable, different bridge deck width demands is adapted to by the quantity and transverse width that adjust the first splicing sections or the second splicing sections, different strokes is realized from the longitudinal length of waveform expansion and contraction plate by type transverse joint plate of putting more energy in premoulded expansion assembly, each splicing sections of premoulded expansion assembly can need design and be made into different models according to routine, formation standard sections, to Industry Promotion, to be applicable to wide, the different bridge construction across footpath of different bridge.

6, waterproof and good endurance, the first premoulded expansion assembly and the second premoulded expansion assembly and Expansion Joint filler packed layer form two-layer closely knit water proof structure, and water resistance is good, further increases durability and the application life of stretching device.Further, the pointing that Expansion Joint filler packed layer adopts is conventional Load materials, easily obtains, and input cost is lower.

7, good, the reasonable stress of result of use and stress performance is excellent, long service life, before and after the type transverse joint plate of putting more energy into is placed between adjacent two beam sections or between girder and abutment, effectively can ensure the vertical rigidity of shrinkage joint seam crossing; Bellows plate is placed on the girder revealed section of beam section, and type of putting more energy into transverse joint plate and be provided with sliding layer between bellows plate and girder revealed section, and smear butter lubrication, deformability is strong, can the level of simultaneous adaptation bridge superstructure, vertical displacement, longitudinal extension distortion and little rotational deformation need, there is good telescopicing performance, the rapid wear problem of current bridge expanssion joint can be solved.

8, design ingenious, rigidity attachment strap (type of namely putting more energy into transverse joint plate) and high scalability corrugated sheet (i.e. waveform expansion and contraction plate) is utilized to be combined to form premoulded expansion assembly, the stroke of bridge main beam and Abutment is transferred to waveform expansion and contraction plate, absorbs small deformation with large width; Further, utilize the slip of premoulded expansion assembly and sliding layer, stroke is transferred to corrugated steel section; Making Expansion Joint filler packed layer on premoulded expansion assembly, arranges WELDING STUDS and strengthens premoulded expansion assembly and the compatibility of deformation of Expansion Joint filler packed layer and the property received of stroke, design rationally ingenious; Waveform expansion and contraction plate gaps underneath in premoulded expansion assembly embeds rubber strip, has vertical supporting effect.

9, short construction period, avoids the problem that conventional telescopic seam need meet the age of concrete, is applicable to robbing fast of burst accident logical.

10, change conveniently, girder and the abutment construction of institute's construction bridges can not be changed, do not relate to bridge floor steel mesh reinforcement, change and only need the deck paving structure to shrinkage joint place to carry out Local treatment.During practice of construction, can carry out segment processing to the deck paving structure at shrinkage joint place, thus actual treatment is very easy.

11, easy construction, when girder is constructed across a stretching device, first on two girder revealed sections, lay sliding panel, to mat formation respectively on two girders again concrete bridge deck pavement layer, and the faulting of slab ends arranged inside concrete bridge deck pavement layer for the first premoulded expansion assembly two end supports, the concrete bridge deck pavement layer of mating formation is positioned at outside sliding panel; Afterwards, two beam sections on the sliding panel laid install premoulded expansion assembly, and the first premoulded expansion assembly is installed bellows plate on be welded and fixed multiple WELDING STUDS, simultaneously install between the first premoulded expansion assembly and sliding panel and inject lubrication oil (being specially butter), the object injecting lubrication oil is that the upper surface (i.e. slide plane) to sliding panel lubricates, and can carry out effective maintenance to the first premoulded expansion assembly and sliding panel simultaneously; Subsequently, between the first premoulded expansion assembly and sliding panel, rubber strip is embedded; Then, making bridge floor surface layer (i.e. asphalt concrete pavement) on mated formation concrete bridge deck pavement layer; Finally, Expansion Joint filler packed layer filled by installed premoulded expansion assembly.

When Abutment stretching device is constructed, first on girder revealed section, lay sliding panel, to mat formation on girder again concrete bridge deck pavement layer, to mat formation on abutment rigid pavement pave-load layer simultaneously, and at the faulting of slab ends of concrete bridge deck pavement layer arranged outside for the second premoulded expansion modular support, the concrete bridge deck pavement layer of mating formation is positioned at inside sliding panel; Afterwards, the sliding panel laid is installed the second premoulded expansion assembly for girder revealed section, and the second premoulded expansion assembly is installed bellows plate on be welded and fixed multiple WELDING STUDS, simultaneously install between the second premoulded expansion assembly and sliding panel and inject lubrication oil (being specially butter), the object injecting lubrication oil is that the upper surface (i.e. slide plane) to sliding panel lubricates, and can carry out effective maintenance to the second premoulded expansion assembly and sliding panel simultaneously; Subsequently, between premoulded expansion assembly and sliding panel, rubber strip is embedded; Then, making bridge floor surface layer (i.e. asphalt concrete pavement) on mated formation concrete bridge deck pavement layer; Finally, Expansion Joint filler packed layer filled by the second installed premoulded expansion assembly.

12, simple, the reasonable in design and easy construction of construction method step, the construction period is short, construction effect good, the bridge seamless process stretching device stress performance of institute's construction molding and good endurance, and long service life.During practice of construction, to the shrinkage joint to be onstructed construction for newly building bridge, can also can be used for the shrinkage joint to be repaired construction in the transformation of Jiu Qiao shrinkage joint.

13, practical value is high and widely applicable, can be applicable to the different bridge construction wide across footpath, different bridge; Meanwhile, can be used for, across a shrinkage joint, also can be used for the shrinkage joint of Abutment.In addition, the present invention can be used for newly building bridge, also can be used for the transformation of Jiu Qiao shrinkage joint.Simultaneously, the present invention have simple, each splicing sections of premoulded expansion modular construction quantity and transverse width is adjustable and Expansion Joint filler packed layer and deck paving construct between the advantage such as continuity, the situation such as can overcome bridge floor out-of-flatness, faulting of slab ends that bridge expanssion joint place easily occurs, twisted, shrinkage joint is irregular.

In sum, the present invention is reasonable in design, easy construction and result of use is good, effectively can solve installation inconvenience, stress performance that existing stretching device exists and the problem such as durability is poor, application life is shorter, have that input cost is lower, simple installation, stress performance are good, good endurance, the advantage such as practical.

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Accompanying drawing explanation

Fig. 1-1 is the present invention the using state reference diagram of girder across a stretching device of constructing.

The using state reference diagram of Fig. 1-2 is the present invention Abutment stretching device of constructing.

Fig. 2-1 is the present invention the vertical bridge of girder across a stretching device of constructing is to section structure schematic diagram.

The vertical bridge of Fig. 2-2 is the present invention Abutment stretching device of constructing is to section structure schematic diagram.

Fig. 3-1 adopts by the present invention the structural representation of the first premoulded expansion assembly.

Fig. 3-2 adopts by the present invention the structural representation of the second premoulded expansion assembly.

Fig. 4 adopts by the present invention the structural representation of type transverse joint plate of putting more energy into.

Fig. 5 adopts by the present invention the cross-sectional configuration schematic diagram of waveform expansion and contraction plate.

Fig. 6 adopts by the present invention the structural representation of waveform expansion and contraction plate and WELDING STUDS.

Fig. 7 adopts by the present invention the installation position schematic diagram of positive stop bottom type transverse joint plate of putting more energy into.

Fig. 8 is the upward view of Fig. 7.

Fig. 9 adopts by the present invention the structural representation of isosceles trapezoid rubber strip.

Figure 10-1 is the present invention the installation position schematic diagram of girder across sliding panel in a stretching device of constructing.

The installation position schematic diagram of sliding panel in Figure 10-2 is the present invention Abutment stretching device of constructing.

Figure 11 adopts by the present invention the direction across bridge structural representation of the first spliced component.

Figure 12 is the method flow block diagram of the present invention when constructing across a stretching device to the girder on built bridge.

Figure 13 is the method flow block diagram of the present invention when constructing across a stretching device to the girder on bridge construction beam.Description of reference numerals:

1-type of putting more energy into transverse joint plate; 1-1-flat plate; 1-2-vertical wing plate;

1-3-open pore steel plate rib; 1-4-circular hole; 1-5-the first bolt mounting holes;

2-waveform expansion and contraction plate; 2-1-corrugated sheet steel; 2-2-vertical junction plate;

2-3-side plate; 2-4-anchor hole; 2-5-the second bolt mounting holes;

3-1-the first Expansion Joint filler packed layer;

3-2-the second Expansion Joint filler packed layer; 4-WELDING STUDS;

5-indented bars; 6-fastening bolt; 7-anchoring piece;

8-1-isosceles trapezoid rubber strip; 8-2-right-angled trapezium rubber strip;

9-positive stop; 10-sliding layer; 10-1-sliding panel;

11-girder; 11-1-beam section; 12-abutment;

12-1-concrete bridge deck pavement layer; 12-2-asphalt concrete pavement;

13-1-the first intermediate section; 13-2-the first sidepiece sections;

14-1-concrete bridge deck pavement layer; 14-2-asphalt concrete pavement.

Detailed description of the invention

A kind of bridge seamless process stretching device as shown in Fig. 1-1, Fig. 1-2, Fig. 2-1 and Fig. 2-2, comprise girder on the girder shrinkage joint being laid in institute's construction bridges across a stretching device and the Abutment stretching device that is laid on the abutment shrinkage joint of institute's construction bridges, girder 11 two ends of institute's construction bridges are supported on two abutments 12 respectively, and girder 11 is along vertical bridge to being divided into M beam section 11-1 from front to back, wherein M is positive integer and M >=2, and each described beam section 11-1 is all covered with deck installation structure; The upper outside of described abutment 12 is covered with road pavement layer and its upper inner is abutment revealed section; Described girder shrinkage joint is the shrinkage joint stayed between adjacent two the described beam section 11-1 in front and back, each described girder shrinkage joint is provided with a described girder across a stretching device; The shrinkage joint stayed between the girder 11 that described abutment shrinkage joint is institute's construction bridges and abutment 12, each described abutment shrinkage joint is provided with a described Abutment stretching device.

As shown in Fig. 1-1 and Fig. 2-1, described girder comprises the first premoulded expansion assembly across a stretching device and is filled in the first Expansion Joint filler packed layer 3-1 above described first premoulded expansion assembly, and described first premoulded expansion assembly is laid on described girder shrinkage joint.The the first reserved mounting groove installed for described first premoulded expansion assembly is formed between the deck installation structure that adjacent two the described beam section 11-1 in front and back spread, spacing before and after the vertical bridge of the described first reserved mounting groove is greater than to length between adjacent two described beam section 11-1, described first Expansion Joint filler packed layer 3-1 is filled in the described first reserved mounting groove and it is connected between deck installation structure that beam section 11-1 described in former and later two spreads.Wherein, the spacing between adjacent two the described beam section 11-1 in front and back is the spacing distance between adjacent two the described beam section 11-1 in front and back, the joint gap namely between adjacent two described beam section 11-1.Spacing between described girder 11 and abutment 12 is the spacing distance between girder 11 and abutment 12, the joint gap namely between girder 11 and abutment 12.

As shown in Fig. 2-1 and Fig. 2-2, described Abutment stretching device comprises the second premoulded expansion assembly and is filled in the second Expansion Joint filler packed layer 3-2 above described second premoulded expansion assembly, and described second premoulded expansion assembly is laid on described abutment shrinkage joint.The the second reserved mounting groove installed for described second premoulded expansion assembly is formed between described road pavement layer and the described deck installation structure inside it, the vertical bridge of the described second reserved mounting groove is greater than the spacing between girder 11 and abutment 12 to length, and described second Expansion Joint filler packed layer 3-2 is filled in the described second reserved mounting groove and it is connected to described road pavement layer and between the described deck installation structure of inner side.

The sections be positioned in multiple described beam section 11-1 below the described first reserved mounting groove and the described second reserved mounting groove is girder revealed section, and sliding layer 10 is equipped with on described girder revealed section upper berth; Described sliding layer 10 is between described girder revealed section and described first premoulded expansion assembly or the second premoulded expansion assembly.Described first Expansion Joint filler packed layer 3-1 is all mutually concordant with the upper surface of described road pavement layer with described deck installation structure with the upper surface of the second Expansion Joint filler packed layer 3-2.

As shown in Fig. 3-1 and Fig. 3-2, it is identical with two structures being connected to waveform expansion and contraction plate 2, two described waveform expansion and contraction plates 2 of type transverse joint plate 1 both sides of putting more energy into that described first premoulded expansion assembly comprises a type transverse joint plate 1 of putting more energy into; Described second premoulded expansion assembly comprises put more energy into type transverse joint plate 1 and one and to be connected to inside type transverse joint plate 1 of putting more energy into and the waveform expansion and contraction plate 2 be positioned at above described girder revealed section; Described type transverse joint plate 1 and the waveform expansion and contraction plate 2 of putting more energy into all is laid along direction across bridge.

As shown in Figure 4, described type transverse joint plate 1 of putting more energy into comprises flat plate 1-1, is multiplely laid in open pore steel plate rib 1-3 on flat plate 1-1 from left to right along direction across bridge and multiple tracks is through at the connecting reinforcement laid on multiple described open pore steel plate rib 1-3 and along direction across bridge, multiple described open pore steel plate rib 1-3 all along vertical bridge to laying and its structure and size are all identical, connecting reinforcement described in multiple tracks is all laid along direction across bridge, and connecting reinforcement described in multiple tracks is all laid on same plane.Described open pore steel plate rib 1-3 is be the elongate steel plate of vertical runs with flat plate 1-1, and the middle part of open pore steel plate rib 1-3 has multiple respectively for the through hole that connecting reinforcement described in multiple tracks passes from front to back.Connecting reinforcement composition frame type reinforcing structure described in multiple described open pore steel plate rib 1-3 and multiple tracks.Described flat plate 1-1 straddles the top at described girder shrinkage joint or described abutment shrinkage joint.

Before and after flat plate 1-1 both sides in described first premoulded expansion assembly are supported in respectively adjacent two described beam section 11-1 girder revealed section on the sliding layer 10 that spreads, connecting reinforcement described in the multiple tracks in described first premoulded expansion assembly is all embedded in the first Expansion Joint filler packed layer 3-1; Inside and outside flat plate 1-1 in described second premoulded expansion assembly, both sides are supported on sliding layer 10 and described abutment revealed section that described girder revealed section spreads respectively, and described in the multiple tracks in described second premoulded expansion assembly, connecting reinforcement is all embedded in the second Expansion Joint filler packed layer 3-2.

As shown in Figure 5, Figure 6, described waveform expansion and contraction plate 2 is provided with multiple WELDING STUDS 4, the side of described waveform expansion and contraction plate 2 and type transverse joint plate 1 of putting more energy into are fastenedly connected and its opposite side is anchored on the described deck installation structure that is positioned at below it by multiple anchoring piece 7; Multiple described WELDING STUDS 4 in described first premoulded expansion assembly is all embedded in the first Expansion Joint filler packed layer 3-1, and the waveform expansion and contraction plate 2 in described first premoulded expansion assembly to be fastenedly connected with the first Expansion Joint filler packed layer 3 of the side of being located thereon by multiple described WELDING STUDS 4 and to be integrated; Multiple described WELDING STUDS 4 in described second premoulded expansion assembly is all embedded in the second Expansion Joint filler packed layer 3-2, and the waveform expansion and contraction plate 2 in described second premoulded expansion assembly to be fastenedly connected with the second Expansion Joint filler packed layer 3 of the side of being located thereon by multiple described WELDING STUDS 4 and to be integrated.

In the present embodiment, described beam section 11-1 is reinforced concrete beam.Described abutment 12 is steel concrete abutment.

During practice of construction, described beam section 11-1 also can be girder steel.

In the present embodiment, described deck installation structure comprises the concrete bridge deck pavement layer 12-1 mated formation on beam section 11-1 and the asphalt concrete pavement 12-2 mated formation on concrete bridge deck pavement layer 12-1, and multiple described anchoring piece 7 is all anchored on concrete bridge deck pavement layer 12-1; Described road pavement layer comprises the rigid pavement pave-load layer 14-1 mated formation on the abutment 12 and asphalt concrete pavement surface 14-2 mated formation on the pave-load layer 14-1 of rigid pavement.

Further, the first reserved mounting groove installed for described first premoulded expansion assembly is formed between the deck installation structure girder revealed section of adjacent two the described beam section 11-1 in front and back two described beam section 11-1 adjacent with front and back spread.

Described abutment 12, be positioned at girder revealed section inside abutment 12, be positioned at inside abutment 12 beam section 11-1 on road pavement layer that the deck installation structure that spreads and abutment 12 spread form the second reserved mounting groove installed for described second premoulded expansion assembly.Be arranged in the concrete bridge deck pavement layer 10-1 outer end that the beam section 11-1 inside abutment 12 spreads and be provided with the erecting bed that the waveform expansion and contraction plate 2 for described second premoulded expansion assembly installs, multiple described anchoring piece 7 is all anchored on concrete bridge deck pavement layer 10-1 that the beam section 11-1 that is positioned at inside abutment 12 spreads.

In the present embodiment, described abutment 12 is provided with ear wall, described second premoulded expansion assembly is positioned on girder revealed section and described ear wall.Described road pavement layer is mated formation on described ear wall.

In the present embodiment, described connecting reinforcement is indented bars 5.

Further, the structure of connecting reinforcement described in multiple tracks is all identical with size.Described through hole is circular hole 1-4, and the diameter of described connecting reinforcement is less than the aperture of circular hole 1-4.

In the present embodiment, described connecting reinforcement is one whole reinforcing bar or the spliced reinforcing bar for being spliced from front to back by multiple reinforcing bar sections, is fixedly connected with described in former and later two between reinforcing bar sections with improving bud grafting or with welding manner.

As shown in Figure 4, described flat plate 1-1 is rectangular steel plates.Further, multiple described open pore steel plate rib 1-3 is all weldingly fixed on flat plate 1-1.

In the present embodiment, described in put more energy between type transverse joint plate 1 with waveform expansion and contraction plate 2 and be all connected by multiple fastening bolt 6.Described type transverse joint plate 1 of putting more energy into is laid at grade with waveform expansion and contraction plate 2.

In the present embodiment, described anchoring piece 7 is standing screw.Further, the height of described standing screw is identical with the thickness of concrete bridge deck pavement layer 12-1.

During actual use, described anchoring piece 7 also can adopt the anchoring element of other type, as crab-bolt etc.

In the present embodiment, multiple described open pore steel plate rib 1-3 is in evenly laying.Further, connecting reinforcement described in multiple tracks is in evenly laying.

During practice of construction, junction between the concrete bridge deck pavement layer 12-1 that the girder revealed section of described beam section 11-1 and beam section 11 spread forms the first faulting of slab ends, and described first faulting of slab ends is the mounting groove installed for described first premoulded expansion assembly or described second premoulded expansion assembly; On the link of adjacent two the described beam section 11-1 in front and back, junction between described concrete bridge deck pavement layer 12-1 and asphalt concrete pavement 12-2 forms the second faulting of slab ends, and what form the first Expansion Joint filler packed layer 3-1 between described second faulting of slab ends on adjacent two the described beam section 11-1 in front and back builds groove.Correspondingly, junction between rigid pavement pave-load layer 14-1 and asphalt concrete pavement surface 14-2 also forms the second faulting of slab ends, and what form the second Expansion Joint filler packed layer 3-2 between the second faulting of slab ends on the second faulting of slab ends on described abutment 12 and the girder revealed section inside abutment builds groove.

As shown in Figure 10-1 and Figure 10-2, described sliding layer 10 is made up of multiple sliding panel 10-1, and multiple described sliding panel 10-1 lays from left to right along direction across bridge direction, and described sliding panel 10-1 is rectangular slab and it is along vertical bridge to laying.Described sliding panel 10-1 is the smooth and steel plate be fixed on described girder revealed section of upper surface.In the present embodiment, the structure of multiple described sliding panel 10-1 is all identical with size and it is interval laying.Multiple described sliding panel 10-1 lays at grade.

In the present embodiment, described sliding panel 10-1 is strip slide plate.Further, multiple described sliding panel 10-1 is all along vertical bridge to laying.

In the present embodiment, described sliding panel 10-1 pastes and is fixed in beam section 11.

During practice of construction, when being fixed sliding panel 10-1, first adopt cement mortar to carry out levelling to beam section 11 needing the position of fixing sliding panel 10-1, described sliding panel 10-1 is the steel sheet that thickness is less.

In the present embodiment, all pad between each crest of each described corrugated sheet steel 2-1 and sliding panel 7 and an elastic spacer is housed.

In the present embodiment, described elastic spacer is rubber strip, and described rubber strip is pasted and fixed on corrugated sheet steel 2-1.

During actual use, also can adopt the elastic strip of other type.

In the present embodiment, the isosceles trapezoid rubber strip 8-1 of described rubber strip to be cross section be isosceles trapezoid or cross section are the right-angled trapezium rubber strip 8-2 of right-angled trapezium.Wherein, described isosceles trapezoid rubber strip 8-1 pastes and embeds below each crest of corrugated sheet steel 2-1, and described right-angled trapezium rubber strip 8-2 pastes and embeds in the crest adjacent with vertical junction plate 2-2 of corrugated sheet steel 2-1.

In actual use procedure, described rubber strip also can adopt the elastic spacer of other type.

In the present embodiment, two base angles of described isosceles trapezoid rubber strip 8-1 are 60 °, and two base angles of right-angled trapezium rubber strip 8-2 are respectively 60 ° and 90 °.

The height of described isosceles trapezoid rubber strip 8-1 and right-angled trapezium rubber strip 8-2 is identical and the two is highly all not less than the spacing between the crest of corrugated sheet steel 2-1 and sliding layer 10, and namely the height of isosceles trapezoid rubber strip 8-1 and right-angled trapezium rubber strip 8-2 is all not less than the wave height of corrugated sheet steel 2-1.In the present embodiment, the height of described isosceles trapezoid rubber strip 8-1 and right-angled trapezium rubber strip 8-2 is about 8cm.The length of described rubber strip is slightly shorter than the direction across bridge width of waveform expansion and contraction plate 2.

In the present embodiment, in described first premoulded expansion assembly, the width of flat plate 1-1 is greater than the maximum open amount (i.e. the stroke maximum value at residing girder shrinkage joint) at residing girder shrinkage joint, and in described second premoulded expansion assembly, the width of flat plate 1-1 is greater than the maximum open amount (i.e. the stroke maximum value at residing abutment shrinkage joint) at residing abutment shrinkage joint; The structure of the multiple described open pore steel plate rib 1-3 of described first premoulded expansion assembly is all identical with size and it is rectangle steel plate, and the structure of the multiple described open pore steel plate rib 1-3 of described second premoulded expansion assembly is all identical with size and it is right-angled trapezium steel plate.Herein, the width of flat plate 1-1 refers to the vertical bridge of flat plate 1-1 to length.

In the present embodiment, described corrugated sheet steel 2-1 comprises multiple laying upper elongated plates at grade and multiple laying lower elongated plates at grade, described upper elongated plates and described lower elongated plates in being laid staggeredly, each described lower elongated plates with two its left and right sides described on be all connected by a strip junction plate between stripe board.

In the present embodiment, as shown in Figure 4, described flat plate 1-1 is rectangular flat.

Composition graphs 5 and Fig. 6, described waveform expansion and contraction plate 2 is rectangle.

And, described waveform expansion and contraction plate 2 comprise corrugated sheet steel 2-1, for connect type transverse joint plate 1 of putting more energy into vertical junction plate 2-2 and for corrugated sheet steel 2-1 being anchored in the side plate 2-3 on described deck installation structure, the side that described corrugated sheet steel 2-1 is connected with type transverse joint plate 1 of putting more energy into is connection side and its opposite side is anchored side; Described side plate 2-3 is connected with the anchored side of corrugated sheet steel 2-1, and side plate 2-3 is anchored on described deck installation structure by multiple described anchoring piece 7; Described vertical junction plate 2-2 is positioned at the connection side of corrugated sheet steel 2-1, and described corrugated sheet steel 2-1 is connected with type transverse joint plate 1 of putting more energy into by vertical junction plate 2-2; In described first premoulded expansion assembly flat plate 1-1 both sides above be provided with a vertical wing plate 1-2 for being fastenedly connected with vertical junction plate 2-2, in described second premoulded expansion assembly, the inside front of flat plate 1-1 is provided with a vertical wing plate 1-2 and is anchored on abutment 12 by multiple described anchoring piece 7 outside it.

In the present embodiment, the upper level of the multiple described open pore steel plate rib 1-3 that described flat plate 1-1 lays all with on it to lay the upper level of vertical wing plate 1-2 identical; The upper level of two described vertical wing plate 1-2 set on flat plate 1-1 in described first premoulded expansion assembly is identical, in described first premoulded expansion assembly, described vertical wing plate 1-2 is close to the vertical junction plate 2-2 of two described waveform expansion and contraction plates 2 with two respectively, and the vertical junction plate 2-2 of two described waveform expansion and contraction plates 2 is fastenedly connected respectively by multiple fastening bolt 6 and two described vertical wing plate 1-2; Vertical wing plate 1-2 set on the vertical junction plate 2-2 of waveform expansion plate 2 and flat plate 1-1 in described second premoulded expansion assembly is close to and the two is fastenedly connected by multiple fastening bolt 6.

In the present embodiment, the upper level of described side plate 2-3 with its to connect the crest overhead height of corrugated sheet steel 2-1 identical, the upper level of described vertical wing plate 1-2 is identical with the upper level of side plate 2-3, the floor height of described flat plate 1-1 with its to connect the trough bottom level of corrugated sheet steel 2-1 identical.

In the present embodiment, multiple described WELDING STUDS 4 is in quincunx laying, and multiple described WELDING STUDS 4 is all positioned on the crest of corrugated sheet steel 2-1.

In the present embodiment, the vertical junction plate 2-2 of two described waveform expansion and contraction plates 2 is fastenedly connected respectively by multiple described fastening bolt 6 and two described vertical wing plate 1-2 and is integrated.

Further, multiple described fastening bolt 6 be laid in same row upper and its lay from left to right along direction across bridge.Correspondingly, each described vertical wing plate 1-2 all has the first bolt mounting holes 1-5 that a row installs for multiple described fastening bolt 6.

Actually add man-hour, described waveform expansion and contraction plate 2 is suppressed by a monoblock steel plate and is formed, described side plate 2-3 is straight plate, on described side plate 2-3, the interleaved anchor hole 2-4 having two rows to install for anchoring piece 7, described vertical junction plate 2-2 has the second bolt mounting holes 2-5 that a row installs for fastening bolt 6; The height of described vertical junction plate 2-2 is identical with the wave height of corrugated sheet steel 2-1.The ripple direction of described corrugated sheet steel 2-1 is direction across bridge.Described waveform expansion and contraction plate 2 is mill work, need carry out treatment, as outer wrapping one deck pitch.In the present embodiment, the outside of described flat plate 1-1, open pore steel plate rib 1-3 and waveform expansion and contraction plate 2 is all enclosed with one deck pitch.After parcel pitch, the antiseptic power of flat plate 1-1, open pore steel plate rib 1-3 and waveform expansion and contraction plate 2 is not only made to strengthen, and make that flat plate 1-1, open pore steel plate rib 1-3 and waveform expansion and contraction plate 2 and the first Expansion Joint filler packed layer 3-1's or the second Expansion Joint filler packed layer 3-2 is better in conjunction with effect, globality is stronger.

During practice of construction, described first premoulded expansion assembly is the first integrated support structure or the first spliced component; Described first integrated support structure is made up of put more energy into type transverse joint plate 1 and two waveform expansion and contraction plates 2; As shown in figure 11, described first spliced component is spliced by multiple first splicing sections, the structure of multiple described first splicing sections all identical and its lay from left to right along direction across bridge, each described first splicing sections forms by put more energy into type transverse joint plate 1 and two waveform expansion and contraction plates 2; In described first spliced component, the quantity of the first splicing sections is 2N+1, and wherein N is positive integer and N >=1; 2N+1 described first splicing sections comprises first intermediate section 13-1 and 2N the first sidepiece sections 13-2; 2N described first sidepiece sections 13-2 comprises and to be N number ofly positioned on the left of first on the left of the first intermediate section 13-1 sections and to be N number ofly positioned at sections on the right side of first on the right side of the first intermediate section 13-1, the symmetrical laying of sections on the right side of sections and N number of described first on the left of in the of N number of described first; Be positioned in sections on the left of in the of adjacent two described first right side first on the left of sections be pressed in be positioned at left side first on the left of on sections, be positioned in sections on the right side of in the of adjacent two described first left side first on the right side of sections be pressed in be positioned at right side first on the right side of on sections;

Described second premoulded expansion assembly is the second integrated support structure or the second spliced component; Described second integrated support structure is made up of put more energy into type transverse joint plate 1 and a waveform expansion and contraction plate 2; Described second spliced component is spliced by multiple second splicing sections, the structure of multiple described second splicing sections all identical and its lay from left to right along direction across bridge, each described second splicing sections forms by put more energy into type transverse joint plate 1 and a waveform expansion and contraction plate 2; In described second spliced component, the quantity of the second splicing sections is 2N+1; 2N+1 described second splicing sections comprises second intermediate section and 2N the second sidepiece sections; 2N described second sidepiece sections comprises and to be N number ofly positioned on the left of second on the left of described second intermediate section sections and to be N number ofly positioned at sections on the right side of second on the right side of described second intermediate section, the symmetrical laying of sections on the right side of sections and N number of described second on the left of in the of N number of described second; Be positioned in sections on the left of in the of adjacent two described second right side second on the left of sections be pressed in be positioned at left side second on the left of on sections, be positioned in sections on the right side of in the of adjacent two described second left side second on the right side of sections be pressed in be positioned at right side second on the right side of on sections.

During practice of construction, when the bridge deck width of institute's construction bridges is less, described first premoulded expansion assembly adopts the first integrated support structure; When the bridge deck width of institute's construction bridges is larger (as when institute's construction bridges is double width bridge), described first premoulded expansion assembly adopts the first spliced component.Described first Integral Steel plate is made up of put more energy into type transverse joint plate 1 and two waveform expansion and contraction plates 2.

In the present embodiment, N=2.

During practice of construction, can according to specific needs, in the value size of N and described spliced steel plateelement comprise each steel plateelement sections direction across bridge width adjust accordingly.

In the present embodiment, adjacent two described first splicing sections mutually overlap on direction across bridge direction.

In the present embodiment, described first intermediate section 13-1 is positioned at above 2N described first sidepiece sections 13-2; Be positioned in sections on the left of in the of N number of described first the rightmost side first on the left of sections be the first right-hand member sections, the right side sections being positioned at the leftmost side in the sections of N number of described right side is the first left end sections; The two ends, left and right of described first intermediate section 13-1 are pressed on described first right-hand member sections and described first left end sections respectively, be positioned in sections on the left of adjacent two described first of left and right right side first on the left of sections be pressed in be positioned at left side first on the left of on sections, be positioned in sections on the right side of adjacent two described first of left and right left side first on the right side of sections be pressed in be positioned at right side first on the right side of on sections.Like this, the water-proof drainage object of place first, present position, shrinkage joint Expansion Joint filler packed layer 3-1 can be realized.

During practice of construction, when described first premoulded expansion assembly adopts the first integrated support structure, described flat plate 1-1 is that level is laid, and described in multiple tracks, connecting reinforcement is laid in same level.

Correspondingly, during practice of construction, when the bridge deck width of institute's construction bridges is less, described second premoulded expansion assembly adopts the second integrated support structure; When the bridge deck width of institute's construction bridges is larger (as when institute's construction bridges is double width bridge), described second premoulded expansion assembly adopts the second spliced component.Described second Integral Steel plate is made up of put more energy into type transverse joint plate 1 and a waveform expansion and contraction plate 2.

In the present embodiment, N=2.

In the present embodiment, adjacent two described second splicing sections mutually overlap on direction across bridge direction.

In the present embodiment, described second intermediate section 13-3 is positioned at above 2N described second sidepiece sections 13-4; Be positioned in sections on the left of in the of N number of described second the rightmost side second on the left of sections be the second right-hand member sections, be positioned in sections on the right side of in the of N number of described second the leftmost side second on the right side of sections be the second left end sections; The two ends, left and right of described second intermediate section 13-3 are pressed on described second right-hand member sections and described second left end sections respectively, be positioned in sections on the left of adjacent two described second of left and right right side second on the left of sections be pressed in be positioned at left side second on the left of on sections, be positioned in sections on the right side of adjacent two described second of left and right left side second on the right side of sections be pressed in be positioned at right side second on the right side of on sections.Like this, the water-proof drainage object of place second, present position, shrinkage joint Expansion Joint filler packed layer 3-2 can be realized.

During practice of construction, when described second premoulded expansion assembly adopts the second integrated support structure, described flat plate 1-1 is that level is laid, and described in multiple tracks, connecting reinforcement is laid in same level.

In the present embodiment, described flat plate 1-1 is rectangle, and described open pore steel plate rib 1-3 is in vertically to laying, and connecting reinforcement described in multiple tracks is all laid on same plane, multiple described WELDING STUDS 4 all in vertical to laying.

As shown in Figure 7, Figure 8, described first premoulded expansion assembly also comprises multiple positive stop 9 be laid in bottom flat plate 1-1, and multiple described positive stop 9 to be laid and it is all between the girder revealed section of adjacent two the described beam section 11-1 in front and back from front to back along the center line of flat plate 1-1.

In the present embodiment, described positive stop 9 is cube block, and the structure of multiple described positive stop 9 is all identical with size, and the quantity of positive stop 9 is 2 ~ 3.

In the present embodiment, described positive stop 9 is for being weldingly fixed on the steel block bottom flat plate 1-1.

During actual use, described positive stop 9 also can be block rubber.

In the present embodiment, the length 15cm of described positive stop 9, width are 3cm and its height 5cm.

Institute's construction bridges be the built bridge need repaired bridge extension joint maybe need to bridge extension joint construct at bridge construction beam, institute's construction bridges stretching device is the stretching device to be repaired being positioned at built bridge or the stretching device to be onstructed be located on bridge construction beam.

As shown in figure 12, when institute's construction bridges stretching device is stretching device to be repaired, the shrinkage joint residing for described stretching device to be repaired is shrinkage joint to be repaired, and described shrinkage joint to be repaired is girder shrinkage joint or the abutment shrinkage joint of described built bridge; Wherein, when described shrinkage joint to be repaired is girder shrinkage joint, the work progress of described stretching device to be repaired is as follows:

Step 1012, reserved mounting groove construction: the deck installation structure of both sides before and after described shrinkage joint to be repaired is cut respectively, obtains the girder revealed section of two described beam section 11-1 of both sides, described shrinkage joint to be repaired;

Step 1013, sliding layer are constructed: sliding layer 10 that the girder revealed section of two described beam section 11-1 in step 1012 is all mated formation;

Step 1015, the first Expansion Joint filler packed layer construction: after described first premoulded expansion assembly installation, fill Expansion Joint filler in described reserved mounting groove in step 1012, and obtain the first Expansion Joint filler packed layer 3 of construction molding; Described first Expansion Joint filler packed layer 3 is positioned at above described first premoulded expansion assembly, and the upper surface of the first Expansion Joint filler packed layer 3 with on the girder 11 of described built bridge to spread the upper surface of deck installation structure mutually concordant;

Step 1023, sliding layer are constructed: sliding layer 10 that girder revealed section described in step 1022 is mated formation;

Step 1025, the second Expansion Joint filler packed layer construction: after described second premoulded expansion assembly installation, fill Expansion Joint filler in reserved mounting groove described in step 1022, and obtain the second Expansion Joint filler packed layer 3-2 of construction molding; Described second Expansion Joint filler packed layer 3-2 is positioned at above described second premoulded expansion assembly, and the upper surface of the second Expansion Joint filler packed layer 3-2 with on girder 11 spread deck installation structure with on abutment 12 the upper surface homogeneous phase of the pave-load layer that paves concordant;

As shown in figure 13, when institute's construction bridges stretching device is stretching device to be onstructed, the shrinkage joint residing for described stretching device to be onstructed is shrinkage joint to be onstructed, and described shrinkage joint to be onstructed is described at the girder shrinkage joint of bridge construction beam or abutment shrinkage joint; Wherein, when described shrinkage joint to be onstructed is girder shrinkage joint, the work progress of described stretching device to be onstructed is as follows:

Step 2013, sliding layer are constructed: according to the vertical bridge of the first premoulded expansion assembly described in step 2012 to length, and in conjunction with both sides before and after shrinkage joint to be onstructed two beam section 11-1 between spacing, the vertical bridge of the girder revealed section of two described beam section 11-1 is determined to length; Afterwards, according to the vertical bridge of the girder revealed section of determined two described beam section 11-1 to length, sliding layer 10 that the girder revealed section of two described beam section 11-1 is mated formation respectively;

Before and after shrinkage joint to be onstructed both sides two beam section 11-1 on to mat formation respectively described deck installation structure, the first premoulded expansion assembly described in installation steps 2012 on the girder revealed section of two described beam section 11-1 simultaneously, and Expansion Joint filler is filled above installation first premoulded expansion assembly, obtain the first Expansion Joint filler packed layer 3-1 of construction molding; Between the deck installation structure that described first premoulded expansion assembly spreads on two described beam section 11-1, described first Expansion Joint filler packed layer 3-1 and the described deck installation structure spread on two described beam section 11-1 of bridge construction beam connect as one, and the upper surface of described Expansion Joint filler packed layer 3 and described two described beam section 11-1 at bridge construction beam to spread the upper surface of deck installation structure mutually concordant;

Step 2023, sliding layer are constructed: according to the vertical bridge of the second premoulded expansion assembly described in step 2022 to length, and in conjunction with the spacing between girder 11 and abutment 12, determine to length the vertical bridge of the girder revealed section of girder 11; Afterwards, according to the vertical bridge of determined girder revealed section to length, sliding layer 10 that described girder revealed section is mated formation;

Step 2024, the second premoulded expansion assembly install and deck installation structure, road pavement layer and the second Expansion Joint filler packed layer are constructed: described deck installation structure that beam section 11-1 adjacent inside abutment 12 mats formation, and to mat formation described road pavement layer in the upper outside of abutment 12

Simultaneously second premoulded expansion assembly described in installation steps 2022 on the girder revealed section of adjacent beams section 11-1 and abutment 12 inside abutment 12, and Expansion Joint filler is filled above the second premoulded expansion assembly of installation, obtain the second Expansion Joint filler packed layer 3-2 of construction molding;

Between the road pavement layer that the upper outside of the deck installation structure that described second premoulded expansion assembly spreads on girder 11 and abutment 12 spreads, described second Expansion Joint filler packed layer 3-2 and described deck installation structure and described road pavement layer connect as one, and the upper surface of described second Expansion Joint filler packed layer 3-2 is concordant with described road pavement layer upper surface homogeneous phase with described deck installation structure.

In the present embodiment, the asphalt concrete pavement 12-2 that described built bridge and the described deck installation structure spread on the girder 11 of bridge construction beam include concrete bridge deck pavement layer 12-1 and mat formation on concrete bridge deck pavement layer 12-1, multiple described anchoring piece 7 is all anchored on concrete bridge deck pavement layer 12-1; Described built bridge and the described road pavement layer spread on the abutment 12 of bridge construction beam include the rigid pavement pave-load layer 14-1 and the asphalt concrete pavement surface 14-2 on rigid pavement pave-load layer 14 that mats formation that mat formation on abutment 12;

When carrying out the construction of reserved mounting groove in step 1012, the concrete bridge deck pavement layer 12-1 that the girder revealed section to both sides before and after described shrinkage joint to be repaired spreads and asphalt concrete pavement 12-2 all cuts;

When carrying out the construction of reserved mounting groove in step 1022, the concrete bridge deck pavement layer 10-1 that described girder revealed section spreads and asphalt concrete pavement 10-2 is all cut, the rigid pavement pave-load layer 14-1 that described abutment revealed section spreads and asphalt concrete pavement surface 14-2 is all cut simultaneously;

Before carrying out sliding layer construction in step 1013, first respectively leveling is carried out to the upper surface of the girder revealed section of two described beam section 11-1 in step 1012;

Before carrying out sliding layer construction in step 2013, first respectively leveling is carried out to the upper surface of the girder revealed section of two described beam section 11-1;

Carry out in step 2,014 first premoulded expansion assembly install and deck installation structure and the first Expansion Joint filler packed layer are constructed time, two beam section 11-1 of elder generation both sides before and after shrinkage joint to be onstructed mat formation respectively concrete bridge deck pavement layer 12-1; After concrete bridge deck pavement layer 12-1 has constructed, the first premoulded expansion assembly described in step 2012 is installed; After described first premoulded expansion assembly installation, asphalt concrete pavement 12-2 is mated formation, and while asphalt concrete pavement 12-2 mats formation, the first Expansion Joint filler packed layer 3-1 is constructed;

Carry out the second premoulded expansion assembly in step 2024 to install and deck installation structure, road pavement layer and Expansion Joint filler packed layer when constructing, beam section 11-1 first inside shrinkage joint to be onstructed mats formation concrete bridge deck pavement layer 10-1, the rigid pavement pave-load layer 14-1 and the upper outside of abutment 12 outside shrinkage joint to be onstructed is mated formation; After concrete bridge deck pavement layer 10-1 and rigid pavement pave-load layer 14-1 has constructed, the second premoulded expansion assembly described in step 2022 is installed; After described second premoulded expansion assembly installation, asphalt concrete pavement 10-2 and asphalt concrete pavement surface 14-2 is mated formation respectively, and while asphalt concrete pavement 10-2 and asphalt concrete pavement surface 14-2 mats formation, the second Expansion Joint filler packed layer 3-2 is constructed.

In the present embodiment, to after the deck installation structure of both sides cuts respectively before and after described shrinkage joint to be repaired in step 1012, the upper surface of two girder revealed sections of both sides, described shrinkage joint to be repaired is exposed.

The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.

Claims

1. a bridge seamless process stretching device, is characterized in that: comprise and be laid in girder in institute's construction bridges across a stretching device and Abutment stretching device; The girder (11) of institute's construction bridges is along vertical bridge to being divided into M beam section (11-1) from front to back, and wherein M is positive integer and M >=2, and each described beam section (11-1) is all covered with deck installation structure; Shrinkage joint between adjacent two the described beam sections (11-1) in front and back is girder shrinkage joint, each described girder shrinkage joint is provided with a described girder across a stretching device; Shrinkage joint between the two ends of described girder (11) and abutment (12) is abutment shrinkage joint, each described abutment shrinkage joint is provided with a described Abutment stretching device; The upper outside of described abutment (12) is covered with road pavement layer and its upper inner is abutment revealed section;

Described girder comprises the first premoulded expansion assembly across a stretching device and is filled in the first Expansion Joint filler packed layer (3-1) above described first premoulded expansion assembly, and described first premoulded expansion assembly is laid on described girder shrinkage joint; The the first reserved mounting groove installed for described first premoulded expansion assembly is formed between the deck installation structure that adjacent two the described beam sections (11-1) in front and back spread, spacing before and after the vertical bridge of the described first reserved mounting groove is greater than to length between adjacent two described beam sections (11-1), described first Expansion Joint filler packed layer (3-1) is filled in the described first reserved mounting groove and it is connected between deck installation structure that beam section (11-1) described in former and later two spreads;

Described Abutment stretching device comprises the second premoulded expansion assembly and is filled in the second Expansion Joint filler packed layer (3-2) above described second premoulded expansion assembly, and described second premoulded expansion assembly is laid on described abutment shrinkage joint; The the second reserved mounting groove installed for described second premoulded expansion assembly is formed between described road pavement layer and the described deck installation structure inside it, the vertical bridge of the described second reserved mounting groove is greater than the spacing between girder (11) and abutment (12) to length, and described second Expansion Joint filler packed layer (3-2) is filled in that the described second reserved mounting groove is interior and it is connected to described road pavement layer and between the described deck installation structure of inner side;

The sections be positioned in multiple described beam section (11-1) below the described first reserved mounting groove and the described second reserved mounting groove is girder revealed section, and sliding layer (10) is equipped with on described girder revealed section upper berth; Described sliding layer (10) is between described girder revealed section and described first premoulded expansion assembly or the second premoulded expansion assembly; Described first Expansion Joint filler packed layer (3-1) is all mutually concordant with the upper surface of described road pavement layer with described deck installation structure with the upper surface of the second Expansion Joint filler packed layer (3-2);

Described first premoulded expansion assembly comprises the waveform expansion and contraction plate (2) that put more energy into type transverse joint plate (1) and two are connected to type transverse joint plate (1) both sides of putting more energy into, and the structure of two described waveform expansion and contraction plates (2) is identical; Described second premoulded expansion assembly comprises put more energy into type transverse joint plate (1) and one and is connected to put more energy into type transverse joint plate (1) inner side and the waveform expansion and contraction plate (2) be positioned at above described girder revealed section; Described type transverse joint plate (1) and the waveform expansion and contraction plate (2) of putting more energy into all is laid along direction across bridge;

Described type transverse joint plate (1) of putting more energy into comprises flat plate (1-1), is multiplely laid in open pore steel plate rib (1-3) on flat plate (1-1) and multiple tracks from left to right along direction across bridge and is through at the upper and connecting reinforcement that is that lay along direction across bridge of multiple described open pore steel plate rib (1-3), multiple described open pore steel plate rib (1-3) all along vertical bridge to laying and its structure and size are all identical, connecting reinforcement described in multiple tracks is all laid along direction across bridge, and connecting reinforcement described in multiple tracks is all laid on same plane; Described open pore steel plate rib (1-3) is and flat plate (1-1) elongate steel plate in vertical runs, and the middle part of open pore steel plate rib (1-3) has multiple respectively for the through hole that connecting reinforcement described in multiple tracks passes from front to back; Connecting reinforcement composition frame type reinforcing structure described in multiple described open pore steel plate rib (1-3) and multiple tracks; Described flat plate (1-1) straddles the top at described girder shrinkage joint or described abutment shrinkage joint;

Before and after flat plate (1-1) both sides in described first premoulded expansion assembly are supported in respectively adjacent two described beam sections (11-1) girder revealed section on the sliding layer (10) that spreads, connecting reinforcement described in the multiple tracks in described first premoulded expansion assembly is all embedded in the first Expansion Joint filler packed layer (3-1); The inside and outside both sides of flat plate (1-1) in described second premoulded expansion assembly are supported on sliding layer (10) and described abutment revealed section that described girder revealed section spreads respectively, and connecting reinforcement described in the multiple tracks in described second premoulded expansion assembly is all embedded in the second Expansion Joint filler packed layer (3-2);

Described waveform expansion and contraction plate (2) is provided with multiple WELDING STUDS (4), and the side of described waveform expansion and contraction plate (2) and type transverse joint plate (1) of putting more energy into are fastenedly connected and its opposite side is anchored on the described deck installation structure that is positioned at below it by multiple anchoring piece (7); Multiple described WELDING STUDS (4) in described first premoulded expansion assembly is all embedded in the first Expansion Joint filler packed layer (3-1), and the waveform expansion and contraction plate (2) in described first premoulded expansion assembly is fastenedly connected by the first Expansion Joint filler packed layer (3) of multiple described WELDING STUDS (4) and the side of being located thereon and is integrated; Multiple described WELDING STUDS (4) in described second premoulded expansion assembly is all embedded in the second Expansion Joint filler packed layer (3-2), and the waveform expansion and contraction plate (2) in described second premoulded expansion assembly is fastenedly connected by the second Expansion Joint filler packed layer (3) of multiple described WELDING STUDS (4) and the side of being located thereon and is integrated.

2. according to a kind of bridge seamless process stretching device according to claim 1, it is characterized in that: described deck installation structure comprises the concrete bridge deck pavement layer (12-1) of mating formation in beam section (11-1) and the asphalt concrete pavement (12-2) of mating formation on concrete bridge deck pavement layer (12-1), and multiple described anchoring piece (7) is all anchored on concrete bridge deck pavement layer (12-1); Described road pavement layer comprises the rigid pavement pave-load layer (14-1) of mating formation on abutment (12) and the asphalt concrete pavement surface (14-2) of mating formation on rigid pavement pave-load layer (14-1).

3. according to a kind of bridge seamless process stretching device described in claim 1 or 2, it is characterized in that: described waveform expansion and contraction plate (2) comprise corrugated sheet steel (2-1), for connect put more energy into type transverse joint plate (1) vertical junction plate (2-2) and for corrugated sheet steel (2-1) being anchored in the side plate (2-3) on described deck installation structure, the side that described corrugated sheet steel (2-1) is connected with type transverse joint plate (1) of putting more energy into is connection side and its opposite side is anchored side; Described side plate (2-3) is connected with the anchored side of corrugated sheet steel (2-1), and side plate (2-3) is anchored on described deck installation structure by multiple described anchoring piece (7); Described vertical junction plate (2-2) is positioned at the connection side of corrugated sheet steel (2-1), and described corrugated sheet steel (2-1) is connected with type transverse joint plate (1) of putting more energy into by vertical junction plate (2-2); In described first premoulded expansion assembly flat plate (1-1) both sides above be provided with a vertical wing plate (1-2) for being fastenedly connected with vertical junction plate (2-2), in described second premoulded expansion assembly, the inside front of flat plate (1-1) is provided with a vertical wing plate (1-2) and is anchored on abutment (12) by multiple described anchoring piece (7) outside it.

4., according to a kind of bridge seamless process stretching device according to claim 3, it is characterized in that: the upper level of the multiple described open pore steel plate rib (1-3) that described flat plate (1-1) is laid all with on it to lay the upper level of vertical wing plate (1-2) identical; In described first premoulded expansion assembly, the upper level of upper two the set described vertical wing plates (1-2) of flat plate (1-1) is identical, in described first premoulded expansion assembly the vertical junction plate (2-2) of two described waveform expansion and contraction plates (2) respectively with two described vertical wing plate (1-2) be close to, and the vertical junction plate (2-2) of two described waveform expansion and contraction plates (2) is fastenedly connected respectively by multiple fastening bolt (6) and two described vertical wing plates (1-2); The vertical wing plate (1-2) that in described second premoulded expansion assembly, the vertical junction plate (2-2) of waveform expansion plate (2) is above set with flat plate (1-1) is close to and the two is fastenedly connected by multiple fastening bolt (6).

5. according to a kind of bridge seamless process stretching device according to claim 3, it is characterized in that: all pad between each crest of described corrugated sheet steel (2-1) and sliding layer (10) and an elastic spacer is housed; The multiple described WELDING STUDS (4) that described waveform expansion and contraction plate (2) is laid is in quincunx laying, and multiple described WELDING STUDS (4) is all positioned on the crest of corrugated sheet steel (2-1).

6. according to a kind of bridge seamless process stretching device described in claim 1 or 2, it is characterized in that: described sliding layer (10) is made up of multiple sliding panel (10-1), multiple described sliding panel (10-1) is laid from left to right along direction across bridge direction, and described sliding panel (10-1) is for rectangular slab and it is along vertical bridge to laying; Described connecting reinforcement is indented bars (5); The structure of connecting reinforcement described in multiple tracks is all identical with size; Described through hole is circular hole (1-4), and the diameter of described connecting reinforcement is less than the aperture of circular hole (1-4).

7. according to a kind of bridge seamless process stretching device described in claim 1 or 2, it is characterized in that: described first premoulded expansion assembly is the first integrated support structure or the first spliced component; Described first integrated support structure is made up of put more energy into type transverse joint plate (1) and two waveform expansion and contraction plates (2); Described first spliced component is spliced by multiple first splicing sections, the structure of multiple described first splicing sections all identical and its lay from left to right along direction across bridge, each described first splicing sections forms by put more energy into type transverse joint plate (1) and two waveform expansion and contraction plates (2); In described first spliced component, the quantity of the first splicing sections is 2N+1, and wherein N is positive integer and N >=1; 2N+1 described first splicing sections comprises first intermediate section (13-1) and 2N the first sidepiece sections (13-2); 2N described first sidepiece sections (13-2) comprise N number of be positioned at the first intermediate section (13-1) left side first on the left of sections and N number of be positioned at the first intermediate section (13-1) right side first on the right side of sections, the symmetrical laying of sections on the right side of sections and N number of described first on the left of in the of N number of described first; Be positioned in sections on the left of in the of adjacent two described first right side first on the left of sections be pressed in be positioned at left side first on the left of on sections, be positioned in sections on the right side of in the of adjacent two described first left side first on the right side of sections be pressed in be positioned at right side first on the right side of on sections;

Described second premoulded expansion assembly is the second integrated support structure or the second spliced component; Described second integrated support structure is made up of put more energy into type transverse joint plate (1) and a waveform expansion and contraction plate (2); Described second spliced component is spliced by multiple second splicing sections, the structure of multiple described second splicing sections all identical and its lay from left to right along direction across bridge, each described second splicing sections forms by put more energy into type transverse joint plate (1) and waveform expansion and contraction plate (2); In described second spliced component, the quantity of the second splicing sections is 2N+1; 2N+1 described second splicing sections comprises second intermediate section and 2N the second sidepiece sections; 2N described second sidepiece sections comprises and to be N number ofly positioned on the left of second on the left of described second intermediate section sections and to be N number ofly positioned at sections on the right side of second on the right side of described second intermediate section, the symmetrical laying of sections on the right side of sections and N number of described second on the left of in the of N number of described second; Be positioned in sections on the left of in the of adjacent two described second right side second on the left of sections be pressed in be positioned at left side second on the left of on sections, be positioned in sections on the right side of in the of adjacent two described second left side second on the right side of sections be pressed in be positioned at right side second on the right side of on sections.

8. according to a kind of bridge seamless process stretching device described in claim 1 or 2, it is characterized in that: described flat plate (1-1) is rectangle, described open pore steel plate rib (1-3) is vertically to laying, connecting reinforcement described in multiple tracks is all laid on same plane, and multiple described WELDING STUDS (4) is all in vertically to laying; The outside of described flat plate (1-1), open pore steel plate rib (1-3) and waveform expansion and contraction plate (2) is all enclosed with one deck pitch;

In described first premoulded expansion assembly, the width of flat plate (1-1) is greater than the maximum open amount at residing girder shrinkage joint, and in described second premoulded expansion assembly, the width of flat plate (1-1) is greater than the maximum open amount at residing abutment shrinkage joint; The structure of the multiple described open pore steel plate rib (1-3) of described first premoulded expansion assembly is all identical with size and it is rectangle steel plate, and the structure of the multiple described open pore steel plate rib (1-3) of described second premoulded expansion assembly is all identical with size and it is right-angled trapezium steel plate;

Described first premoulded expansion assembly also comprises multiple positive stop (9) being laid in flat plate (1-1) bottom, multiple described positive stop (9) along the center line of flat plate (1-1) lay from front to back and its be all positioned at before and after adjacent two described beam sections (11-1) girder revealed section between.

9. the method that bridge seamless process stretching device is as claimed in claim 1 constructed, it is characterized in that: institute's construction bridges be the built bridge need repaired bridge extension joint maybe need to bridge extension joint construct at bridge construction beam, institute's construction bridges stretching device is the stretching device to be repaired being positioned at built bridge or the stretching device to be onstructed be located on bridge construction beam;

Step 1012, reserved mounting groove construction: the deck installation structure of both sides before and after described shrinkage joint to be repaired is cut respectively, obtains the girder revealed section of two described beam sections (11-1) of both sides, described shrinkage joint to be repaired;

Step 1013, sliding layer are constructed: sliding layer (10) that the girder revealed section of two described beam sections (11-1) in step 1012 is all mated formation;

Step 1015, the first Expansion Joint filler packed layer construction: after described first premoulded expansion assembly installation, fill Expansion Joint filler in described reserved mounting groove in step 1012, and obtain the first Expansion Joint filler packed layer (3) of construction molding; Described first Expansion Joint filler packed layer (3) is positioned at above described first premoulded expansion assembly, and on the upper surface of the first Expansion Joint filler packed layer (3) and the girder (11) of described built bridge to spread the upper surface of deck installation structure mutually concordant;

Step 1023, sliding layer are constructed: sliding layer (10) that girder revealed section described in step 1022 is mated formation;

Step 1025, the second Expansion Joint filler packed layer construction: after described second premoulded expansion assembly installation, fill Expansion Joint filler in reserved mounting groove described in step 1022, and obtain the second Expansion Joint filler packed layer (3-2) of construction molding; Described second Expansion Joint filler packed layer (3-2) is positioned at above described second premoulded expansion assembly, and the upper surface of the second Expansion Joint filler packed layer (3-2) with on girder (11) spread deck installation structure with on abutment (12) the upper surface homogeneous phase of the pave-load layer that paves concordant;

Step 2013, sliding layer are constructed: according to the vertical bridge of the first premoulded expansion assembly described in step 2012 to length, and in conjunction with both sides before and after shrinkage joint to be onstructed two beam sections (11-1) between spacing, the vertical bridge of the girder revealed section of two described beam sections (11-1) is determined to length; Afterwards, according to the vertical bridge of the girder revealed section of determined two described beam sections (11-1) to length, sliding layer (10) that the girder revealed section of two described beam sections (11-1) is mated formation respectively;

Before and after shrinkage joint to be onstructed both sides two beam sections (11-1) on to mat formation respectively described deck installation structure, the first premoulded expansion assembly described in installation steps 2012 on the girder revealed section of two described beam sections (11-1) simultaneously, and Expansion Joint filler is filled above installation first premoulded expansion assembly, obtain the first Expansion Joint filler packed layer (3-1) of construction molding; Described first premoulded expansion assembly is positioned between deck installation structure that two described beam sections (11-1) spread, described first Expansion Joint filler packed layer (3-1) and the described deck installation structure spread on two described beam sections (11-1) of bridge construction beam connect as one, and the upper surface of described Expansion Joint filler packed layer (3) and described two described beam sections (11-1) at bridge construction beam to spread the upper surface of deck installation structure mutually concordant;

Step 2023, sliding layer are constructed: according to the vertical bridge of the second premoulded expansion assembly described in step 2022 to length, and in conjunction with the spacing between girder (11) and abutment (12), the vertical bridge of the girder revealed section of girder (11) is determined to length; Afterwards, according to the vertical bridge of determined girder revealed section to length, sliding layer (10) that described girder revealed section is mated formation;

Step 2024, the second premoulded expansion assembly install and deck installation structure, road pavement layer and the second Expansion Joint filler packed layer are constructed: described deck installation structure of mating formation in the beam section (11-1) that abutment (12) inner side is adjacent, and to mat formation described road pavement layer in the upper outside of abutment (12)

Simultaneously at girder revealed section and abutment (12) the above second premoulded expansion assembly described in installation steps 2022 of abutment (12) inner side adjacent beams section (11-1), and Expansion Joint filler is filled above the second premoulded expansion assembly of installation, obtain the second Expansion Joint filler packed layer (3-2) of construction molding;

Between the road pavement layer that the upper outside that described second premoulded expansion assembly is positioned at deck installation structure and the abutment (12) that girder (11) spreads spreads, described second Expansion Joint filler packed layer (3-2) connects as one with described deck installation structure and described road pavement layer, and the upper surface of described second Expansion Joint filler packed layer (3-2) is concordant with described road pavement layer upper surface homogeneous phase with described deck installation structure.

10. in accordance with the method for claim 9, it is characterized in that: the deck installation structure that described built bridge and the described girder at bridge construction beam (11) spread includes concrete bridge deck pavement layer (12-1) and the asphalt concrete pavement (12-2) on concrete bridge deck pavement layer (12-1) of mating formation, and multiple described anchoring piece (7) is all anchored on concrete bridge deck pavement layer (12-1); The road pavement layer that described built bridge and the described abutment at bridge construction beam (12) spread includes the rigid pavement pave-load layer (14-1) of mating formation on abutment (12) and the asphalt concrete pavement surface (14-2) of mating formation on rigid pavement pave-load layer (14);

When carrying out the construction of reserved mounting groove in step 1012, the concrete bridge deck pavement layer (12-1) that the girder revealed section to both sides before and after described shrinkage joint to be repaired spreads and asphalt concrete pavement (12-2) all cut;

When carrying out the construction of reserved mounting groove in step 1022, the concrete bridge deck pavement layer (10-1) that described girder revealed section spreads and asphalt concrete pavement (10-2) are all cut, the rigid pavement pave-load layer (14-1) that described abutment revealed section spreads and asphalt concrete pavement surface (14-2) is all cut simultaneously;

Before carrying out sliding layer construction in step 1013, first respectively leveling is carried out to the upper surface of the girder revealed section of two described beam sections (11-1) in step 1012;

Before carrying out sliding layer construction in step 2013, first respectively leveling is carried out to the upper surface of the girder revealed section of two described beam sections (11-1);

Carry out in step 2,014 first premoulded expansion assembly install and deck installation structure and the first Expansion Joint filler packed layer are constructed time, concrete bridge deck pavement layer (12-1) that two beam sections (11-1) of elder generation both sides before and after shrinkage joint to be onstructed are mated formation respectively; After concrete bridge deck pavement layer (12-1) has been constructed, the first premoulded expansion assembly described in step 2012 is installed; After described first premoulded expansion assembly installation, asphalt concrete pavement (12-2) is mated formation, and while asphalt concrete pavement (12-2) mats formation, the first Expansion Joint filler packed layer (3-1) is constructed;

Carry out the second premoulded expansion assembly in step 2024 to install and deck installation structure, road pavement layer and Expansion Joint filler packed layer when constructing, beam section (11-1) first inside shrinkage joint to be onstructed to be mated formation concrete bridge deck pavement layer (10-1), the rigid pavement pave-load layer (14-1) and the upper outside of abutment (12) outside shrinkage joint to be onstructed is mated formation; After concrete bridge deck pavement layer (10-1) and rigid pavement pave-load layer (14-1) have been constructed, the second premoulded expansion assembly described in step 2022 is installed; After described second premoulded expansion assembly installation, asphalt concrete pavement (10-2) and asphalt concrete pavement surface (14-2) are mated formation respectively, and while asphalt concrete pavement (10-2) and asphalt concrete pavement surface (14-2) mat formation, the second Expansion Joint filler packed layer (3-2) is constructed.