CN104695319B - Steel stealth bent cap and installation method thereof - Google Patents
Steel stealth bent cap and installation method thereof Download PDFInfo
- Publication number
- CN104695319B CN104695319B CN201510018220.1A CN201510018220A CN104695319B CN 104695319 B CN104695319 B CN 104695319B CN 201510018220 A CN201510018220 A CN 201510018220A CN 104695319 B CN104695319 B CN 104695319B
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- Prior art keywords
- bent cap
- steel
- force rod
- stealth
- bridge pier
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The invention discloses a kind of steel stealth bent cap and installation method thereof, belong to bridge manufacturing technology field, solve the technical problem that stealthy concrete bent cap weight is big, long construction period, cost are high.Stealthy bent cap structure includes at least go up, end two-layer connects the horizontal frame formed and by the agent structure vertically being connected between horizontal frame be formed bent cap to force rod by level to force rod, between stressed member by mating connector and arrange stable support bar formed triangular structure, level in the framework of upper strata passes the preformed hole of box beam to force rod, and the stressed member in bottom frame is arranged on bridge pier bearing pad.The invention has the beneficial effects as follows: level to force rod through the preformed hole of box beam and with level to force rod connector, vertical cooperatively form stealthy bent cap to force rod etc., design ingenious, simple and reasonable, bulk strength height, good endurance；Steel are all used to make, lightweight, recyclable, low cost.
Description
Technical field
The invention belongs to bridge manufacturing technology field, be specially a kind of steel stealth bent cap and installation method thereof.
Background technology
Due to the rapid lifting of traffic flow, on the one hand the width of bridge being proposed higher requirement, on the other hand, bridge is as an important component part of modern city, in addition to preferably completing its basic function, also should become one view.The various aspects such as this is accomplished by total arrangement, version consider, the first details all should make every effort to perfect.Reduce deck-molding, alleviate beam weight, strengthen the inexorable trend that deck-siding is bridge development from now on.Stealthy bent cap refers to combine the bent cap and prefabricated case beam that are located at column top together.Bent cap is placed on the beam slab junction with box beam, with beam slab with high or higher, generally, increases bent cap height, improve stability, be again two pieces of good connecting elements of beam slab, and increase headroom.This allows for stealthy bent cap technology and is widely used.
In prior art, there is the stealthy concrete bent cap of employing, but its weight is big, long construction period, cost are high.It is therefore desirable to design a kind of lightweight, fabrication and installation quickly, the stealthy bent cap of low cost.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of steel stealth bent cap, by the level through adjacent box beam is connected formation horizontal frame with level to force rod connector to force rod, horizontal frame, by being vertically connected with the horizontal frame of lower floor to force rod, reaches lightweight in the case of mechanical property does not reduces, installs quick, the effect of low cost.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of steel stealth bent cap, there is the steel construction beam body of truss-like assembly features, it is arranged on along bridge under box beam termination, on bridge pier bearing pad, it it is critical only that: structure includes at least going up, end two-layer connects the horizontal frame formed by level to force rod, and by being vertically connected between horizontal frame be formed the agent structure of bent cap to force rod, by mating connector between stressed member, and stable rod member formation triangular structure is set, level in the framework of upper strata passes the preformed hole of box beam to force rod, stressed member in bottom frame is arranged on bridge pier bearing pad.
Present invention also offers the installation method of a kind of steel stealth bent cap, based on above-mentioned steel stealth bent cap, comprise the following steps:
A, by design requirement in box beam, reserve the preformed hole that the level in the framework of upper strata passes to force rod, bridge pier positions bridge pier bearing pad, the intersection of the contour line of bottom frame and centrage and bridge pier bearing pad upper surface is drawn according to design drawing, and along bridge to box beam end face projection line on bridge pier bearing pad；
B, bottom frame will be assembled, it will be accurately positioned according to above intersection, add balance cushion block at bridge pier bearing pad periphery；
C, lifting bridge pier box beam on one side, accurately put in place according to the projection line on bridge pier bearing pad；
D, the preformed hole level in the framework of upper strata being assembled to force rod and passing in box beam；
E, according to corresponding relation by level to force rod and the bottom frame being positioned at bridge pier bearing pad by the vertical left frame being connected to force rod and form direction across bridge by stable reinforcement of rod pieces；
F, the box beam of lifting bridge pier another side, accurately put in place according to the projection line on bridge pier bearing pad；
G, repetition e, f step form the correct frame of direction across bridge；
H, install additional between left and right framework along bridge to suitable bridge to force rod to level and stablize rod member and be combined into bent cap structure.
The invention has the beneficial effects as follows: level to force rod through the preformed hole of box beam and with level to force rod connector, vertical cooperatively form stealthy bent cap to force rod etc., design ingenious, simple and reasonable, bulk strength height, good endurance；Steel are all used to make, lightweight, recyclable, low cost；The junction of each part is with bolts, installs rapid, easy to manufacture.
The present invention is described in detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the embodiment one structural representation when being embodied as；
Fig. 4 is the structural representation of the embodiment of the present invention two；
Fig. 5 is the embodiment two structural representation when being embodied as；
Fig. 6 is the structural representation of stable rod member；
Fig. 7 is the cross sectional shape schematic diagram of stressed member.
In the accompanying drawings: 1 be level to force rod, 2 is vertical to force rod, and 3 is mating connector, and 4 is stable rod member, and 5 is box beam, and 6 is bridge pier bearing pad, and 7 is that level is to force rod connector.
Detailed description of the invention
Referring to accompanying drawing, the present invention provides a kind of steel stealth bent cap, there is the steel construction beam body of truss-like assembly features, it is arranged on along bridge under box beam 5 termination, on bridge pier bearing pad 6, it it is critical only that: structure includes at least going up, end two-layer connects the horizontal frame formed by level to force rod 1, and by being vertically connected between horizontal frame be formed the agent structure of bent cap to force rod 2, by mating connector 3 between stressed member, and stable rod member 4 is set forms triangular structure, level in the framework of upper strata passes the preformed hole of box beam 5 to force rod 1, stressed member in bottom frame is arranged on bridge pier bearing pad 6.Two parallel levels connect formation horizontal frame by level to force rod connector 7 between force rod 1.
Stressed member includes that level is to force rod 1 with vertically to force rod 2.Connect by means of mating connector 3 fixing between stressed member, be connected fixing by mating connector 3 with stablizing rod member 4 realization between stressed member simultaneously.
The structure of mating connector 3 matches with the rod member type being connected on present position, quantity, attitude；Connect stressed member structure design in have straight line two-way or 90 degree be bi-directionally connected or orthogonal three to six to connection shank interface；The structure design of stable connection rod member 4 is the rib plate being provided with positioning screw hole between adjacent orthogonal inserting junction tube mouth.
Referring to accompanying drawing 6, the termination stablizing rod member 4 is provided with supporting " U " type joint, and stressed member termination arranges grafting locking mechanism.The termination stablizing rod member 4 is connected with mating connector 3 by bolt or bearing pin.
Stablize rod member and stressed member arranges length adjustment mechanism, so that each rod member, connector stress equalization.
Embodiment one, referring to accompanying drawing 1-2, stealthy bent cap includes two-layer horizontal frame, by vertically to stressed member 2 with stablize rod member 4 and form overall structure between two-layer horizontal frame.Being connected by mating connector 3 between each rod member, concrete connected mode is with bolts thus reaches the purpose of on-the-spot Fast Installation.Stablize rod member 4 be located at the two ends of two-layer horizontal frame and be in conplane vertical between stressed member 2.When stable rod member 4 be located at conplane vertical to stressed member 2 time, the web of the setting angle and box beam 5 of stablizing rod member 4 matches.Space between two box beams 5 installs connection level to force rod connector 7, thus Appropriate application is limited space.
When being embodied as: referring to accompanying drawing 3, the installation steps of stealthy bent cap are as follows: a, reserve, by design requirement, the preformed hole that the level in the framework of upper strata passes to force rod 1 in box beam 5, bridge pier positions bridge pier bearing pad 6, the intersection of the contour line of bottom frame and centrage and bridge pier bearing pad 6 upper surface is drawn according to design drawing, and along bridge to box beam end face projection line on bridge pier bearing pad 6；B, bottom frame will be assembled, it will be accurately positioned according to above intersection, add balance cushion block at bridge pier bearing pad 6 periphery；C, lifting bridge pier box beam 5 on one side, accurately put in place according to the projection line on bridge pier bearing pad 6；D, the level in the framework of upper strata is assembled and passes the preformed hole in box beam 5 to force rod 1；E, according to corresponding relation by level to force rod 1 and the bottom frame being positioned at bridge pier bearing pad 6 by vertical be connected to force rod 2 and reinforce by stable rod member 4 form the left frame of direction across bridge；F, the box beam 5 of lifting bridge pier another side, accurately put in place according to the projection line on bridge pier bearing pad 6；G, repetition e, f step form the correct frame of direction across bridge；H, install additional between left and right framework along bridge to suitable bridge to force rod 1 to level and stablize rod member 4 and be combined into bent cap structure.
In above step, it is also possible to be connected fixing to the lower end of box beam 5 and lower layer of water flat frame.At stressed member with stablize during rod member is assembled into truss element by means of mating connector, including correcting the error on manufacture geometric scale and assembly technology by the length adjustment mechanism arranged in aforementioned stable rod member and stressed member structure.
Embodiment two, referring to attached Figure 4 and 5, unlike embodiment one, stealthy bent cap structure has three levels framework, and cross section is inverse-T-shaped.Box beam 5 is stairstepping with the junction of bent cap.Such setting further increases the contact area of box beam 5 and bent cap so that whole mounting structure is the most stable.
In above example, referring to accompanying drawing 7, stressed member is sheet fabrication forming material, and shape of cross section is " L " shape, " L " shape with elbow, " L " shape, rectangle or the rectangle with bending with bending, to ensure that level is to force rod 1 with vertically to the mechanical property of force rod 2.
Claims (9)
1. a steel stealth bent cap, there is the steel construction beam body of truss-like assembly features, it is arranged on along bridge under box beam (5) termination, on bridge pier bearing pad (6), it is characterized in that: structure includes at least going up, end two-layer connects the horizontal frame formed by level to force rod (1), and by being vertically connected between horizontal frame be formed the agent structure of bent cap to force rod (2), by mating connector (3) between stressed member, and stable rod member (4) formation triangular structure is set, level in the framework of upper strata passes the preformed hole of box beam (5) to force rod (1), stressed member in bottom frame is arranged on bridge pier bearing pad (6).
Steel stealth bent cap the most according to claim 1, it is characterised in that: realize being connected by means respectively of mating connector (3) between stressed member with stressed member, between stressed member and stable rod member (4) and fix.
Steel stealth bent cap the most according to claim 1 and 2, it is characterised in that: the structure of described mating connector (3) matches with the rod member type being connected on present position, quantity, attitude；Connect stressed member structure design in have straight line two-way or 90 degree be bi-directionally connected or orthogonal three to six to connection shank interface；The structure design of stable connection rod member (4) is the rib plate being provided with positioning screw hole between adjacent orthogonal inserting junction tube mouth.
Steel stealth bent cap the most according to claim 3, it is characterised in that: the termination stablizing rod member (4) is provided with supporting " U " type joint, and stressed member termination arranges grafting locking mechanism.
Steel stealth bent cap the most according to claim 3, it is characterised in that: stablize rod member (4) and stressed member arranges length adjustment mechanism.
Steel stealth bent cap the most according to claim 1, it is characterised in that: described stealthy bent cap structure has three levels framework, and cross section is inverse-T-shaped.
Steel stealth bent cap the most according to claim 1, it is characterised in that: described stressed member is sheet fabrication forming material, and its shape of cross section is " L " shape, " L " shape with elbow, " L " shape, rectangle or the rectangle with bending with bending.
8. an installation method for steel stealth bent cap, based on the steel stealth bent cap structure described in claim 1, it is characterised in that comprise the following steps:
A, by design requirement in box beam (5), reserve the preformed hole that the level in the framework of upper strata passes to force rod (1), bridge pier positions bridge pier bearing pad (6), the intersection of the contour line of bottom frame and centrage and bridge pier bearing pad (6) upper surface is drawn according to design drawing, and along bridge to box beam end face projection line on bridge pier bearing pad (6)；
B, bottom frame will be assembled, it will be accurately positioned according to above intersection, add balance cushion block at bridge pier bearing pad (6) periphery；
C, lifting bridge pier box beam (5) on one side, accurately put in place according to the projection line on bridge pier bearing pad (6)；
D, the level in the framework of upper strata is assembled and passes the preformed hole in box beam (5) to force rod (1)；
E, according to corresponding relation by level to force rod (1) and the bottom frame being positioned at bridge pier bearing pad (6) by vertical be connected to force rod (2) and reinforce by stable rod member (4) form the left frame of direction across bridge；
F, the box beam (5) of lifting bridge pier another side, accurately put in place according to the projection line on bridge pier bearing pad (6)；
G, repetition e, f step form the correct frame of direction across bridge；
H, install additional between left and right framework along bridge to suitable bridge to force rod (1) to level and stablize rod member (4) and be combined into bent cap structure.
The installation method of steel stealth bent cap the most according to claim 8, it is characterized in that: at stressed member with stablize during rod member is assembled into truss element by means of mating connector, correct the error on manufacture geometric scale and assembly technology including by the length adjustment mechanism of setting in stable rod member (4) and stressed member structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018220.1A CN104695319B (en) | 2015-01-15 | 2015-01-15 | Steel stealth bent cap and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018220.1A CN104695319B (en) | 2015-01-15 | 2015-01-15 | Steel stealth bent cap and installation method thereof |
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| Publication Number | Publication Date |
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| CN104695319A CN104695319A (en) | 2015-06-10 |
| CN104695319B true CN104695319B (en) | 2016-08-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220624B (en) * | 2015-11-06 | 2016-08-24 | 沈阳建筑大学 | A kind of bent cap truss-like reinforcing construction and construction method thereof |
| CN108867345B (en) * | 2018-09-11 | 2023-12-29 | 中建五局土木工程有限公司 | Steel bridge invisible bent cap structure capable of saving space under urban bridge and construction method thereof |
| CN112127267A (en) * | 2020-09-22 | 2020-12-25 | 中国五冶集团有限公司 | Steel construction hidden beam installation device |
| CN113512929B (en) * | 2021-03-19 | 2022-10-25 | 宁波市政工程建设集团股份有限公司 | Steel-concrete combined structural hidden cover beam structure system and construction method thereof |
| CN113512932B (en) * | 2021-03-19 | 2022-11-25 | 宁波市政工程建设集团股份有限公司 | Prestressed steel beam connected prefabricated small box girder type hidden cover beam and construction method thereof |
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| KR20060114973A (en) * | 2005-05-03 | 2006-11-08 | 주식회사 기주건설 | Earthquake-proof reinforcement shock relaxation system of bridge structure |
| KR100929557B1 (en) * | 2009-05-29 | 2009-12-03 | 태우디엔씨 주식회사 | Beam constructing structure for charge type steel box and i-beam girder of bridge |
| CN102031749A (en) * | 2009-09-28 | 2011-04-27 | 中交公路规划设计院有限公司 | Grid structure for controlling girder induced vibration of split steel box girder bridge |
| CN102277825A (en) * | 2011-05-23 | 2011-12-14 | 江苏沪宁钢机股份有限公司 | Steel truss bridge and method for fabricating same |
| CN103556566A (en) * | 2013-11-21 | 2014-02-05 | 中铁第四勘察设计院集团有限公司 | Main girder structure of cable-stayed bridge of large-span railway |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20060114973A (en) * | 2005-05-03 | 2006-11-08 | 주식회사 기주건설 | Earthquake-proof reinforcement shock relaxation system of bridge structure |
| KR100929557B1 (en) * | 2009-05-29 | 2009-12-03 | 태우디엔씨 주식회사 | Beam constructing structure for charge type steel box and i-beam girder of bridge |
| CN102031749A (en) * | 2009-09-28 | 2011-04-27 | 中交公路规划设计院有限公司 | Grid structure for controlling girder induced vibration of split steel box girder bridge |
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| CN104695319A (en) | 2015-06-10 |
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Effective date of registration: 20161025 Address after: 055150 Yi Kang Street, Xingtai, Hebei, Renxian County Patentee after: Xingtai Luqiao Qianshan Bridge Member Co., Ltd. Address before: 054001 No. 239 Jianye South Road, Xingtai Development Zone, Hebei Patentee before: Xingtai Road & Bridge Traffic Facilities Co., Ltd. |