CN105113425B - A kind of construction method of efficiently assembled steel reinforced concrete combination beam - Google Patents

A kind of construction method of efficiently assembled steel reinforced concrete combination beam Download PDF

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Publication number
CN105113425B
CN105113425B CN201510618402.2A CN201510618402A CN105113425B CN 105113425 B CN105113425 B CN 105113425B CN 201510618402 A CN201510618402 A CN 201510618402A CN 105113425 B CN105113425 B CN 105113425B
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China
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concrete
construction
reinforced concrete
conduit
girder steel
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CN201510618402.2A
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Chinese (zh)
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CN105113425A (en
Inventor
张永涛
游新鹏
王敏
郑和晖
黄跃
巫兴发
陈少林
彭成明
黄灿
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中交第二航务工程局有限公司
中交公路长大桥建设国家工程研究中心有限公司
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Priority to CN201510618402.2A priority Critical patent/CN105113425B/en
Publication of CN105113425A publication Critical patent/CN105113425A/en
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Abstract

The invention discloses a kind of construction method of efficiently assembled steel reinforced concrete combination beam, belong to technical field of bridge construction, it is connected with the girder steel of rubber seal strip and floor as platform for lining using top, the precast concrete floorings that bottom is provided with to conduit are taken and are placed in rubber seal strip, and high-strength grout is injected in the grouting channel surrounded to girder steel, rubber seal strip, precast concrete floorings and forms steel reinforced concrete combination beam;The floor along girder steel Longitudinal extending is connected with the top flange plate of girder steel.The steel reinforced concrete combination beam faying face burn into concrete cracking that is brought present invention effectively avoids processing steel reinforced concrete connector and cast in situs joint concrete, the problems such as rear pouring concrete quality is unmanageable, live work efficiency is improved while construction quality is ensured, and it is more environmentally friendly, there is good economic benefit.

Description

A kind of construction method of efficiently assembled steel reinforced concrete combination beam
Technical field
The present invention relates to a kind of construction method of steel reinforced concrete combination beam, belongs to technical field of bridge construction, more particularly to a kind of Efficient assembled steel reinforced concrete combination beam construction method without cast-in-place concrete.
Background technology
In bridge construction field, steel-concrete combined structure can effectively reduce own wt, improve span ability, application And have a extensive future.
In steel performance, both are combined together figure as shown in Figure 1, Figure 2 and Fig. 3 by generally use connector Shown in three kinds of connectors:Weldering nail connector, perforated plate connector connect parts with shaped steel, wherein the application of weldering nail connector is most To be extensive.The side of flow welding nail preformed hole or piecemeal concrete slab seam after combination construction generally use in steel-concrete combined structure Formula (as shown in Figure 4 and Figure 5), i.e., prefabricated bridge is lifted in advance to above girder steel, after steel reinforced concrete realized by rear pouring concrete With reference to.Practice have shown that above two combination can bring faying face burn into concrete cracking, rear pouring concrete quality to be difficult to It the problems such as control, more will crucially increase cast-in-place process, and extend the site operation cycle.Currently, prefabricated construction has turned into One of the important development direction in bridge construction field.For composite bridge, because girder steel and concrete slab can divide Do not manufactured in factory, girder steel can realize that in-site installation without building template, possesses prefabricated construction condition as platform.For This, is badly in need of developing a kind of interconnection technique for being advantageous to the efficient assembling of steel-concrete combined structure.
A kind of steel-concrete composite beam is disclosed in Chinese utility model patent specification CN203129439U, it is wrapped Include, including girder steel, beams of concrete, open pore steel plate and with ribbing run through reinforcing bar;It is characterized in that:Open pore steel plate is welded on steel beam flange Surface;Circular hole corresponding with open pore steel plate is provided with the web of girder steel;The reinforcing bar with ribbing that runs through is from open pore steel plate and girder steel abdomen Center of circular hole on plate passes through;Beams of concrete is cast in the periphery of girder steel, wraps up the open pore steel plate, with ribbing runs through reinforcing bar.Should Although utility model improves the load assignment state of shear connector in steel-concrete composite beam, the stress of steel-concrete composite beam Distribution, and the safety coefficient of steel-concrete composite beam can be improved, and it is easy for construction, efficiency of construction is high, without complexity Construction equipment.But the steel-concrete composite beam is still to follow closely pouring concrete after preformed hole coordinates by flow welding to pour realization Steel reinforced concrete combines, so the utility model has steel reinforced concrete faying face burn into concrete cracking, rear pouring concrete quality is difficult to control etc. Problem;The steel-concrete composite beam of the utility model is using integrally formed simultaneously, therefore the steel reinforced concrete combination beam is not readily transportable And installation.
A kind of combination beam is disclosed in Chinese invention patent specification CN101831869A with concrete support crossbeam to connect Binding structure, it includes girder steel, concrete bearing cross beam, wherein, girder steel is interrupted at central bearing point, connects with concrete bearing cross beam Connect;In girder steel end set end plate, perforated panel or weldering nail connection girder steel and concrete bearing cross beam are provided with end plate, with this Transmit beam body shearing and moment of flexure;Distributing bar is disposed with concrete bearing cross beam, steel reinforcement cage is formed together with main stress reinforcing bar; Bearing support is set on concrete pier in concrete bearing cross beam bottom.It can cause although using the attachment structure of the invention Concrete shrinkage, creep with the temperature difference caused by the decking in the negative moment region tension reduce, while have power transmission succinct, clearly, bear Moment of flexure area need not apply prestressing force, eliminate bent cap, and scene is without welding for steel structure, and the installation position adjustable of bridge pier is good etc. Advantage, but the invention still has that steel reinforced concrete faying face burn into concrete cracking, rear pouring concrete quality are unmanageable etc. to ask Topic;It is and various using step during invention assembling composite beam bridge, it is necessary first to set up and complete girder steel, arrange template and coagulation The reinforcing bar of native bearing cross beam and floorings, first pour the concrete that span centre concrete pours near fulcrum and joint portion again, installation Permanent bearing, form removal, fall frame and can form steel and concrete continuous composite beam bridge structure;The set process expends man-hour length, construction Intensity is big.
A kind of novel steel-concrete combination beam is disclosed in Chinese invention patent specification CN101435249A, it is wrapped Web is included, be connected to the bottom wing listrium of web bottom and pours the concrete slab at the top of web;Pour and be enclosed with outside web Light aggregate concrete protection layer.Although the invention improves combination beam fire resistance, rigidity and resistance to overturning, but the invention Steel-concrete composite beam preparation method it is cumbersome, and steel reinforced concrete caused by being contacted there are still concrete and steel beam surface combines The problems such as face burn into concrete cracking.
The content of the invention
In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved in the present invention is to provide a kind of efficient assembled Steel reinforced concrete combination beam and its manufacture construction method, steel reinforced concrete caused by it can efficiently solve concrete and steel beam surface contact combine The problems such as face burn into concrete cracking, while work efficiency, and more ring can be effectively improved on the premise of construction quality is ensured Protect.
In order to solve the above technical problems, present invention employs the construction party of such a efficiently assembled steel reinforced concrete combination beam Bottom is provided with the precast concrete of conduit by method, the girder steel that it is connected with rubber seal strip and floor using top as platform for lining Floorings, which are taken, to be placed in rubber seal strip, is injected in the grouting channel surrounded to girder steel, rubber seal strip, precast concrete floorings high Strength grouting material forms steel reinforced concrete combination beam;The floor along girder steel Longitudinal extending is connected with the top flange plate of the girder steel.
The invention discloses a kind of preferred embodiment in, it is prefabricated mixed that the precast concrete floorings include polylith Coagulate native bridge floor plate segment;Connect in succession by epoxide-resin glue between the precast concrete bridge floor plate segment.
The invention discloses a kind of preferred embodiment in, be provided between the precast concrete bridge floor plate segment Multiple shearing key teeths.
The invention discloses a kind of preferred embodiment in, above the conduit of the precast concrete bridge floor plate segment It is provided with the grouting mouth connected with conduit.
The invention discloses a kind of preferred embodiment in, floor surface roughness can be improved by having on the floor Decorative pattern and multiple through holes.
The invention discloses a kind of preferred embodiment in, the surface of the conduit is handled by roughening.
The invention discloses a kind of preferred embodiment in, the method bag of the surface roughening treatment of the conduit Include:(1) surface retarders are applied on the conduit bed die, when concrete strength reaches the 30% of design strength, removed reserved Groove bed die;(2) high pressure water washing cement mortar is used, surface is exposed stone, reaches dabbing effect.
The invention discloses a kind of preferred embodiment in, the use during surface roughening treatment of the conduit is special With roughening template;The roughening template includes template and mesh;The mesh is detachably secured to the template table Face;The mesh is identical with the surface size of the template;Table of the geometry of the mesh at the conduit interface Face forms the indent geometry of closure.
The invention discloses a kind of preferred embodiment in, its Specific construction step includes:(1) completed in workshop The manufacture of girder steel, and the affixed decorative pattern perforate floor on the top flange plate of girder steel, while two sides of the top flange plate in girder steel Edge longitudinally pastes compressible rubber seal strip along girder steel;(2) the precast concrete bridge that bottom carries conduit is poured in precasting yard Panel section, starting section is poured first, and using this section as matching segment, pour next nodal section plate segment;(3) to each The conduit of precast concrete bridge floor plate segment bottom carries out roughening processing;(4) lifting appliance installation group is utilized at the construction field (site) The girder steel part in beam is closed, using girder steel as platform for lining, before the installation of precast concrete bridge floor plate segment, by transverse prestress Steel beam and anchorage installation in place, then successively install precast concrete bridge floor plate segment, each precast concrete bridge floor plate segment it Between pass through epoxy resin gemel connection formed precast concrete floorings;(5) each precast concrete bridge floor plate segment laying has connected Cheng Hou, precast concrete floorings, conduit, rubber seal strip and prefabricated girder steel surround the grouting channel of a sealing;(6) pass through Grouting mouth on the precast concrete floorings pressure injection high-strength grout into grouting channel, continue to that each grouting mouth flows continually out circle After cylindrical slurry plasma discharge hole is blocked with rubber stopper;(7) laterally in advance should using in lateral prestressing tendon and anchorage tensioning floorings Power.
The invention discloses a kind of preferred embodiment in, the starting section of the precast concrete floorings or most The latter is provided with stock inlet on section;Grout outlet is provided with remaining section of the concrete slab.
The beneficial effects of the invention are as follows:The present invention in precast concrete floorings, rubber seal strip and prefabricated girder steel by enclosing Into grouting channel in injection high-strength grout realize steel reinforced concrete combination beam quick assembling construction, the precast concrete floorings The prefabricated completion in factory in advance, so without concrete cast-in-situ process in bridge construction process, so as to efficiently solve The problems such as steel reinforced concrete combination beam faying face burn into concrete cracking, rear pouring concrete quality are unmanageable;The present invention effectively improves The assembling efficiency of construction of steel reinforced concrete combination beam, while reduce construction and take, reduce construction intensity, avoiding processing steel reinforced concrete and connect A series of problems that fitting and cast in situs joint concrete are brought, live work efficiency is improved while construction quality is ensured, and It is more environmentally friendly, there is good economic benefit.
Brief description of the drawings
Fig. 1 is the weldering nail connecting-piece structure schematic diagram that steel reinforced concrete combination beam uses in the prior art;
Fig. 2 is the perforated plate connector structural representation that steel reinforced concrete combination beam uses in the prior art;
Fig. 3 is the structural steel connecting member structural representation that steel reinforced concrete combination beam uses in the prior art;
Fig. 4 is the schematic diagram for the assembling for realizing steel reinforced concrete combination beam using rear flow welding nail preformed hole mode in the prior art;
Fig. 5 is the signal for the assembling for realizing steel reinforced concrete combination beam using piecemeal concrete slab seam mode in the prior art Figure;
Fig. 6 is a kind of structural representation of the efficiently construction method of assembled steel reinforced concrete combination beam of the embodiment of the present invention;
Fig. 7 is the self-lock connecting piece used in a kind of efficiently construction method of assembled steel reinforced concrete combination beam of the embodiment of the present invention Structural representation;
Fig. 8 is real using i-shape steel beam in a kind of efficiently construction method of assembled steel reinforced concrete combination beam of the embodiment of the present invention Apply the structural representation of example;
Fig. 9 is to be implemented in a kind of efficiently construction method of assembled steel reinforced concrete combination beam of the embodiment of the present invention using groove profile girder steel The structural representation of example;
Figure 10 is that a kind of grouting channel structure of the efficiently construction method of assembled steel reinforced concrete combination beam of the embodiment of the present invention is shown It is intended to;
Figure 11 is to be arranged on prefabricated bridge floor in a kind of efficiently construction method of assembled steel reinforced concrete combination beam of the embodiment of the present invention The structural representation of key teeth is sheared between plate;
Figure 12 is a kind of grouting mouth position signal of the efficiently construction method of assembled steel reinforced concrete combination beam of the embodiment of the present invention Figure;
Figure 13 is by high-strength encapsulating material structure in a kind of efficiently construction method of assembled steel reinforced concrete combination beam of the embodiment of the present invention Into self-lock connecting piece operation principle schematic diagram;
In figure:1- precast concrete floorings, 2- girder steels, 3- floors, 4- conduits, 5- rubber seal strips, 6- grouting channels, 7- High-strength encapsulating material, 8- shearing key teeths, 9- grouting mouths, 1a- precast concrete bridge floor plate segments, 2a- top flange plates.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not For limiting the present invention.
From a kind of structural representation of efficiently construction method of assembled steel reinforced concrete combination beam shown in Fig. 6 and Fig. 7, sheet The efficient assembled steel reinforced concrete combination beam of invention includes precast concrete floorings 1 and girder steel 2;Precast concrete floorings 1 are installed Above girder steel 2;The floor 3 along girder steel Longitudinal extending is connected with the top flange plate 2a of girder steel 2;Precast concrete floorings 1 bottom is provided with the conduit 4 along girder steel Longitudinal extending, and the conduit 4 is rectangular-shape, and inwall by roughening at The method of reason, the wherein interface roughnessization of conduit 4 processing includes brushing medicament, hydraulic giant rinses dabbing, sandblasting etc..It is several more commonly used Way be:(1) surface retarders+giant rinses:Surface retarders are applied on reserved groove bed die, work as concrete strength When reaching the 30% of design strength, reserved groove bed die is removed, high pressure water washing cement mortar is used in time, surface is exposed stone Son, reach dabbing effect.(2) reserve groove bed die and use special roughening template, including template and mesh, mesh are removable Unload and be fixed on template surface, mesh is identical with the surface size of template, and the geometry of mesh is at reserved conduit interface Surface forms the indent geometry of closure;Floor 3 is located in conduit 4, is provided with multiple through holes on floor 3, and floor 3 The decorative pattern of floor surface roughness can be improved by being machined with surface;Top flange plate 2a both sides edge is connected with along girder steel longitudinal direction The rubber seal strip 5 of extension;The bottom surface of precast concrete floorings 1 is overlapped in the rubber seal strip 5, precast concrete floorings 1 realizes compression so as to ensure that its sealing by self gravitation to rubber seal strip 5, such as:Certain steel reinforced concrete combined box beam uses Shao High resiliency that family name's hardness is 60, high density, ageing-resistant, etch-proof neoprene bar.Rubber strip is made in prefabricated bridge weight 20mm is compressed to by thick 35mm under, compression ratio reaches 42.8%.Top flange plate 2a, rubber seal strip 5, precast concrete floorings 1 bottom surface and conduit 4 four surround an inverted T-shape grouting channel 6 (as shown in Figure 10);High-strength filling is filled with grouting channel 6 Sizing material 7, high-strength encapsulating material 7 form self-lock connecting piece, and the high-strength encapsulating material 7 is a kind of strong (1d of morning>35MPa), good fluidity (expands The latitude of emulsion>550mm), compression strength height (28d>The dry-mixed material of cement base 80MPa).
In the present invention, precast concrete floorings 1 and girder steel 2 can be standardized prefabricated in processing factory, The processing and roughening processing of the bottom channel 4 of precast concrete floorings 1 are completed simultaneously, then by the prefabricated mixed of prefabricated completion Coagulate native floorings 1 and girder steel 2 and transport construction and installation on-site consolidation to.Therefore precast concrete floorings 1 can be pre- by prefabricated polylith Floorings 1a processed, then it can form prefabricated mix by being glued connection between precast concrete bridge floor plate segment 1a at the construction field (site) Native floorings 1 are coagulated, in order to improve the stability of precast concrete bridge floor plate segment 1a splicing, precast concrete bridge floor plate segment 1a Between splicing face on be provided with it is multiple shearing key teeths 8, as shown in figure 11.Only floor 3 need to be inserted floorings conduit during installation 4, realize steel reinforced concrete combination as schemed by a kind of high-strength grout 7 of the pressure injection of grouting mouth 9 on precast concrete bridge floor plate segment 1a It is whole to be installed without concrete cast-in-situ process the phase shown in 12.Above every piece of precast concrete bridge floor plate segment 1a conduit 4 Grouting mouth is set, and wherein stock inlet is arranged in starting section or last section, and grout outlet is arranged in remaining section.This hair The structure of bright middle girder steel 2 can use i-shape steel beam or groove profile girder steel, as shown in Figure 8 and Figure 9.
By surrounded to top flange plate 2a, rubber seal strip 5, the bottom surface of precast concrete floorings 1 and conduit 4 four one A kind of self-lock connecting piece that injection high-strength grout 7 is formed in the grouting channel 6 of inverted T-shape sealing is the present invention solving steel The problems such as mixed combination beam faying face burn into concrete cracking, rear pouring concrete quality are difficult to control is crucial, the self-lock connecting piece Structure type is as shown in Figure 7.The operation principle of the self-lock connecting piece is as follows:Different from traditional connectors, the self-lock connecting piece is Meet longitudinal shear resistance and vertical drawing by the reserved bonding between groove and steel plate interface of high-strength grout and floorings, friction Etc. stress demand.Figure 13 is the operation principle that self-lock connecting piece resists longitudinal shear, under longitudinal shear τ effects, steel reinforced concrete circle The protuberance separation u that there is sliding s trend in face while is necessarily accompanied between different materials, and this separation u is limited by floorings Direct stress σ caused by interior transverse prestress, separation trend is bigger, and direct stress is also bigger., also will be this for the mechanism of action Efficiently quick type of attachment is referred to as self-lock connecting piece.
Concrete mode using the present invention is as follows:
(1) girder steel part, including the processing content such as the decorative pattern of floor, perforate above girder steel are completed in manufacture in factory;
(2) the casting concrete floorings in precasting yard.Starting section is first poured, and using this section as matching segment, Pour next bridge floor plate segment;
(3) the prefabricated completion of section floorings, conduit interface need to be reserved below floorings and be roughened, handle hand Section includes brushing medicament, hydraulic giant rinses dabbing, sandblasting etc.;
(4) at assembled scene, the girder steel part in combination beam is installed by lifting appliance;
(5) using girder steel as platform for lining, before floorings installation, by lateral prestressing tendon and anchorage installation in place, Until after the completion of being in the milk at concrete slab installation and bridge location, can be entered using jack pair lateral prestressing tendon Row tensioning.Trifle section concrete floorings are installed successively, are attached between section by smearing epoxide-resin glue;Floorings are installed Before, need to paste compressible rubber seal strip to elongated to be formed between steel reinforced concrete along bridge along both sides of the edge in girder steel top plate top surface in advance Grouting channel;Prefabricated bridge should be compressed rubber strip completely using own wt, to ensure the sealing of grouting channel;
(6) special high-strength grout is noted in in-passage pressure.Before mud jacking first with pressure clear water rinse will mud jacking duct, then Grouting material is pressed into from one end of stock inlet, rear enclosed is discharged from grout outlet;Its specific steps includes:First, before grouting, adopt Borehole cleaning is carried out to grouting channel with press-in air, and examines whether sealing rubber strip can bear grouting pressure;Then, by grouting material It should be mixed uniform according to product operation instruction, its fluidity should meet product requirement;Then, in grouting, by grouting material Injected from stock inlet, continue to each pulp oral pore to flow continually out after cylindric slurries and block plasma discharge hole with rubber stopper;Complete grouting Afterwards, tackle combination beam and strengthen protection, avoid by shock and vibration, and can be carried out subsequently after grouting material reaches prescribed strength Construction, it should be noted that during grouting operation, if there is can not pulp situation, cementing operations should be stopped immediately, looked into Bright reason is fixed a breakdown in time.
(7) transverse prestress in tensioning floorings.
In addition, steel ribs Surface Machining is reserved groove and be arranged into textured or direct perforate, floorings by taking The construction measures such as key teeth type, further improve high-strength grout and the adhesive property at steel reinforced concrete interface, can more meet force request.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those skilled in the art disclosed herein technical scope in, the change or replacement that can readily occur in should all be contained Cover within protection scope of the present invention.

Claims (9)

  1. A kind of 1. construction method of efficiently assembled steel reinforced concrete combination beam, it is characterised in that:With top be connected with rubber seal strip (5) and The girder steel (2) of floor (3) is platform for lining, and the precast concrete floorings (1) that bottom is provided with to conduit (4) are taken and are placed on rubber On strip of paper used for sealing (5), the interior injection of grouting channel (6) surrounded to girder steel (2), rubber seal strip (5), precast concrete floorings (1) is high Strength grouting material (7) forms steel reinforced concrete combination beam;It is connected with the top flange plate (2a) of the girder steel (2) along girder steel Longitudinal extending Floor (3);Its Specific construction step includes:
    (1) manufacture of girder steel, and the affixed decorative pattern perforate floor on the top flange plate of girder steel are completed in workshop, while in girder steel The both sides of the edge of top flange plate longitudinally paste compressible rubber seal strip along girder steel;
    (2) the precast concrete bridge floor plate segment that bottom carries conduit is poured in precasting yard,
    Starting section is poured first, and using this section as matching segment, pours next nodal section plate segment;
    (3) roughening processing is carried out to the conduit of each precast concrete bridge floor plate segment bottom;
    (4) at the construction field (site) using the girder steel part in lifting appliance installation combination beam, using girder steel as platform for lining, prefabricated Before the installation of concrete bridge deck plate segment, then precast concrete is installed successively by lateral prestressing tendon and anchorage installation in place Bridge floor plate segment, pass through epoxy resin gemel connection between each precast concrete bridge floor plate segment and form precast concrete floorings;
    (5) after the completion of each precast concrete bridge floor plate segment laying connection, precast concrete floorings, conduit, rubber seal strip and Prefabricated girder steel surrounds the grouting channel of a sealing;
    (6) by the grouting mouth on precast concrete floorings into grouting channel pressure injection high-strength grout, continue to each grouting Mouth flows continually out and blocks plasma discharge hole with rubber stopper after cylindric slurries;
    (7) transverse prestress in lateral prestressing tendon and anchorage tensioning floorings is utilized.
  2. A kind of 2. construction method of efficiently assembled steel reinforced concrete combination beam as claimed in claim 1, it is characterised in that:It is described prefabricated Concrete slab (1) includes polylith precast concrete bridge floor plate segment (1a);The precast concrete bridge floor plate segment (1a) Between connect in succession by epoxide-resin glue.
  3. A kind of 3. construction method of efficiently assembled steel reinforced concrete combination beam as claimed in claim 2, it is characterised in that:It is described prefabricated Multiple shearing key teeths (8) are provided between concrete bridge deck plate segment (1a).
  4. A kind of 4. construction method of efficiently assembled steel reinforced concrete combination beam as claimed in claim 2, it is characterised in that:It is described prefabricated The grouting mouth (9) connected with conduit (4) is provided with above the conduit (4) of concrete bridge deck plate segment (1a).
  5. A kind of 5. construction method of efficiently assembled steel reinforced concrete combination beam as claimed in claim 1, it is characterised in that:The floor (3) there are the decorative pattern that can improve floor surface roughness and multiple through holes on.
  6. A kind of 6. construction method of efficiently assembled steel reinforced concrete combination beam as claimed in claim 1, it is characterised in that:The conduit (4) surface is handled by roughening.
  7. A kind of 7. construction method of efficiently assembled steel reinforced concrete combination beam as claimed in claim 6, it is characterised in that:The conduit (4) method of surface roughening treatment includes:
    (1) surface retarders are applied on the conduit (4) bed die, when concrete strength reaches the 30% of design strength, removed Reserved groove bed die;
    (2) high pressure water washing cement mortar is used, surface is exposed stone, reaches dabbing effect.
  8. A kind of 8. construction method of efficiently assembled steel reinforced concrete combination beam as claimed in claim 6, it is characterised in that:The conduit (4) the special roughening template of use during surface roughening treatment;The roughening template includes template and mesh;It is described Mesh is detachably secured to the template surface;The mesh is identical with the surface size of the template;The mesh Geometry the conduit (4) interface surface formed closure indent geometry.
  9. 9. such as a kind of construction method for efficiently assembled steel reinforced concrete combination beam that claim 1 is stated, it is characterised in that:It is described prefabricated mixed Coagulate and be provided with stock inlet on the starting section or last section of native floorings;On remaining section of the concrete slab It is provided with grout outlet.
CN201510618402.2A 2015-09-24 2015-09-24 A kind of construction method of efficiently assembled steel reinforced concrete combination beam CN105113425B (en)

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CN105908631B (en) * 2016-05-11 2017-12-19 中铁十四局集团第二工程有限公司 A kind of built-in type steel reinforced concrete joint portion mud jacking filling device and construction method
CN106120532A (en) * 2016-07-26 2016-11-16 宁波金蛟龙重工钢构有限公司 A kind of novel prefabricated assembled steel concrete composite beam bridge superstructure and processing technology thereof
CN106284047A (en) * 2016-08-04 2017-01-04 浙江工业大学 Steel concrete combined bridge beam slab
CN106149546A (en) * 2016-08-04 2016-11-23 浙江工业大学 Steel rubber concrete combined bridge beam slab
CN106835930B (en) * 2017-04-10 2018-10-16 广州大学 A kind of bolt connecting type steel concrete combination beam
CN108385522B (en) * 2018-01-17 2019-12-03 中交第二航务工程局有限公司 Prefabrication and assembly construction UHPC combination beam and rapid constructing method
CN110528702B (en) * 2019-09-10 2020-10-20 中铁隧道局集团有限公司 Construction method for bonding thin-layer epoxy structural adhesive of steel-concrete composite beam

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US5394667A (en) * 1993-03-01 1995-03-07 Nystrom; Ron Flooring construction and method
CN203320417U (en) * 2013-04-07 2013-12-04 同济大学 Composite beam bridge deck structure with replaceable bridge deck slab
CN203284707U (en) * 2013-05-23 2013-11-13 苏州荣生大方路桥建设工程有限公司 Assembled-type three-dimensional city road system
CN103452320A (en) * 2013-09-05 2013-12-18 中铁上海工程局有限公司 Concrete dabbing construction method
CN203546589U (en) * 2013-10-24 2014-04-16 同济大学 Steel girder-integral lifting arm prefabricated concrete bridge panel combined girder bridge
CN104195950A (en) * 2014-08-15 2014-12-10 中交第二航务工程局有限公司 Steel-concrete composite beam cable-stayed bridge glued joint connecting method

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