CN204097864U - A kind of bridge prefabrication hollow pier stud delay-pour joint structure - Google Patents

A kind of bridge prefabrication hollow pier stud delay-pour joint structure Download PDF

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Publication number
CN204097864U
CN204097864U CN201420541768.5U CN201420541768U CN204097864U CN 204097864 U CN204097864 U CN 204097864U CN 201420541768 U CN201420541768 U CN 201420541768U CN 204097864 U CN204097864 U CN 204097864U
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pier stud
hollow pier
steel plate
concrete
precast hollow
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CN201420541768.5U
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胡义平
夏永红
陈光龙
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Anhui traffic construction Limited by Share Ltd
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ANHUI GOURGEN TRAFFIC CONSTRUCTION Co Ltd
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Abstract

The utility model relates to a kind of bridge prefabrication hollow pier stud delay-pour joint structure, it is characterized in that described structure comprises precast hollow pier stud, pier stud basis and rear pouring concrete Dun Bi; Described pier stud basis end face is embedded with junction steel plate, and its center is provided with the mounting limit block of restriction precast hollow pier stud installation site; Described precast hollow pier stud is fixed on pier stud basis by junction steel plate; Precast hollow pier stud Covered with Angles casing, steel pile casting outer wall is provided with steel floor; Concrete pier wall has been built in periphery bottom precast hollow pier stud, and boring position is filled with has the concrete formed by slightly expanded concrete to fill out core section.Precasting process speed of application is fast, bonding strength is high, holistic resistant behavior good owing to adopting for the structure that the utility model relates to, and anti-seismic performance is strong, has good technical economic benefit.

Description

A kind of bridge prefabrication hollow pier stud delay-pour joint structure
Technical field
The utility model relates to a kind of bridge prefabrication hollow pier stud delay-pour joint structure, belongs to bridge engineering field, is applicable to construction period tight, bonding strength and anti-seismic performance requires that high precast pier is connected engineering with basic.
Background technology
At present, the bridge pier structure of Urban Bridge adopts cast-in-place construction usually, execute man-hour requirement road pavement and carry out shutoff, add that the cast-in-place construction duration is long, construction quality is wayward, and support in construction, template consumption are large, and operating expenses is high, and directly affect the road passage capability of construction point, incompatible with the requirement of urban construction and development.If bridge pier adopts precast yard prefabricated, the form of construction work be directly connected with basis after on-site hoisting is in place, then can parallel construction, greatly shorten the construction period, reduce the impact on surrounding traffic, resident living, and element precast can reduce concrete shrinkage, the distortion caused of creeping, and construction quality is guaranteed, there is society, environmental benefit preferably.But precast pier is large technological difficulties with the connection design on basis.
In prior art, the connecting structure of such as a kind of precast pier and cushion cap and dock construction method (ZL:201210120445.4) thereof, precast concrete pier shaft becomes male and fomale(M&F) to form shear connector to build by it simultaneously again with the setting of joint of cushion cap, though can efficiency of construction be improved, increase certain anti-shear ability, but fail to consider orientation problem and both bonding strength problems of linkage section bottom prefabricated pier shaft; For another example a kind of integrated precast bridge pier and foundation structure (ZL:201320143661.0), it is pre-buried indented bars in basis, indented bars is also fixing through upper and lower two pieces of junction plates successively, though there is ideal speed of application, but joint face resistant slide ability is low, structure is at dynamic load at poor stability, and when construction hoisting, the accurate positioning difficulty of bridge pier of up to a hundred tons of weighing is large.
In sum, improve although existing precast pier and foundation connection structure have larger technology compared to traditional cast-in-place construction, speed of application is fast, and traffic impact is few, but still there is the deficiencies such as shear resistance is weak, anatomical connectivity intensity is not high, poor durability, overall stress-bearing capability are low.Given this, for effectively controlling the bonding strength on Precast Pier Columns and pier stud basis, need a kind of bridge prefabrication hollow pier stud delay-pour joint structure and construction that simultaneously can meet the multipurposes such as supporting capacity is strong, bonding strength is high, easy construction is effective, good in economic efficiency of invention at present badly.
Summary of the invention
The purpose of this utility model be to provide a kind of speed of application fast, be interconnected the bridge prefabrication hollow pier stud delay-pour joint structure that intensity is high, holistic resistant behavior good, anti-seismic performance is good.
For realizing above-mentioned technical purpose, the utility model have employed following technical scheme:
A kind of bridge prefabrication hollow pier stud delay-pour joint structure, is characterized in that described structure comprises precast hollow pier stud, pier stud basis and rear pouring concrete Dun Bi; Described pier stud basis end face is embedded with junction steel plate, and its center is provided with the mounting limit block of restriction precast hollow pier stud installation site; Described precast hollow pier stud is fixed on pier stud basis by junction steel plate; Precast hollow pier stud Covered with Angles casing, steel pile casting outer wall is provided with steel floor; Concrete pier wall has been built in periphery bottom precast hollow pier stud, and boring position is filled with has the concrete formed by slightly expanded concrete to fill out core section.
Described mounting limit block is cylindrical limited block, and centered by the cylindrical limited block center of circle, hoop is evenly provided with junction steel plate, pre-buried high-strength bolt in the pier stud basis of junction steel plate centerline.
Described junction steel plate is in fan ring structure, fan ring junction steel plate prepared screw-bolt hole, bolt hole position is corresponding with high-strength bolt position pre-buried in pier stud basis, is provided with precast hollow pier stud limiting plate, the U-shaped connecting reinforcement of soffit vertical welding at fan ring junction steel plate upper surface.
Even pre-buried connection peg and high-strength bolt on the bottom vertical sidewall of described precast hollow pier stud, and it is pre-buried above high-strength bolt to connect peg.
Described steel pile casting internal diameter is identical with precast hollow pier stud external diameter; Steel pile casting surface prepared screw-bolt hole, bolt hole position is corresponding with the high-strength bolt of precast hollow pier stud sidewall.
Described steel floor is trapezium structure, and trapezoidal steel floor installation site is corresponding with fan ring junction steel plate position, and trapezoidal steel floor side and steel pile casting outer wall are welded to connect, and base is welded to connect with fan ring upper surface of steel plate.
Described concrete pier wall wraps connect peg, steel pile casting, trapezoidal steel floor and fan ring junction steel plate completely.
The construction method of above-mentioned bridge prefabrication hollow pier stud delay-pour joint structure, its main construction sequence is as follows:
1) prepare before construction: according to design drawing, process job site, draw construction outline line, measure pier stud base position, organizing construction's material, machinery, personnel are in place;
2) pier stud foundation construction: in pile foundation position according to designing requirement assembling reinforcement, install template, pre-buried fan ring junction steel plate and high-strength bolt; At the U-shaped connecting reinforcement of design attitude vertical welding and limiting plate before fan ring junction steel plate is pre-buried, and high-strength bolt is through fan ring junction steel plate preformed hole, then carries out the concrete pouring construction on pier stud basis, installation nut after concrete curing completes;
3) precast hollow pier stud is installed: install pre-manufactured steel casing bottom precast hollow pier stud, pre-manufactured steel casing outer wall welds trapezoidal steel floor, and is connected and fixed by nut and the pre-buried high-strength bolt of precast hollow pier stud sidewall;
4) precast hollow pier stud lifting: after steel pile casting and the installation of steel floor, by special hoisting plant equipment by precast hollow pier stud hoisted in position;
5) connecting elements welding: during welding, first fan ring junction steel plate pre-buried in steel pile casting base and pier stud basis is welded to connect, more trapezoidal steel floor base and fan ring junction steel plate are welded to connect;
6) concrete pier wall construction: install template according to designing requirement, primary concreting completes concrete pier wall, the concrete pier wall energy simultaneously guaranteeing after-pouring is evenly and wrap each connecting elements completely;
7) construction of core section filled out by concrete: pour into slightly expanded concrete in its hollow position of precast hollow pier stud, forms concrete and fills out core section.
the utility model has following feature and beneficial effect:
(1) the hollow pier stud of bridge prefabrication that relates to of the utility model is connected with basis that stress performance is good, speed of application is fast, handling safety is simple, construction quality is easy to control, and can effectively reduce the workload of on-the-spot formwork and concreting, the shortening construction period.
(2) fan ring junction steel plate be set to steel pile casting bottom prefabricated pier shaft and steel floor provides joint face; and the concrete surface of junction, basic top can be protected; and adopt the design of separate type can reduce rolled steel dosage while guarantee bonding strength, reduce construction costs.
(3) trapezoidal steel floor is rationally set according to fan ring junction steel plate position, precast hollow pier stud and the bonding strength on basis can be strengthened, the bending resistance of junction can be improved again.
(4) pouring concrete Dun Bi wraps each connection steel beam column completely afterwards, can play effective antisepsis, also greatly can improve pier stud and basic bonding strength; Increase the floor space of bridge prefabrication pier stud simultaneously, strengthen whole structural stability.
(5) concrete is filled out core section and is connected shaping by inside link that precast hollow pier stud is arranged with the vertical connecting reinforcement installed on locating piece, and overall performance is good.
Accompanying drawing explanation
Fig. 1 is the skiagraph of the utility model bridge prefabrication hollow pier stud delay-pour joint structure;
Fig. 2 is the cross-sectional drawing of the hollow pier stud of the utility model bridge prefabrication and basic joint face;
In figure: the hollow pier stud of 1-bridge prefabrication, 2-connects peg, 3-steel pile casting, 4-pier stud sidewall high-strength bolt, the trapezoidal steel floor of 5-, pouring concrete Dun Bi after 6-, top, 7-basis high-strength bolt, 8-fans ring junction steel plate, 9-U type connecting reinforcement, 10-pier stud basis, 11-pile foundation, core filled out by 12-concrete, 13-mounting limit block, 14-junction steel plate limiting plate.
Detailed description of the invention
Concrete Design parameter and construction technical requirement in present embodiment, the manufacture craft etc. of steel pile casting, trapezoidal steel floor and fan ring junction steel plate repeats no more, and emphasis sets forth the embodiment that the utility model relates to structure.
Fig. 1 is the skiagraph of the utility model bridge prefabrication hollow pier stud delay-pour joint structure, and Fig. 2 is the cross-sectional drawing of the hollow pier stud of the utility model bridge prefabrication and basic joint face.
With reference to shown in Fig. 1, a kind of bridge prefabrication hollow pier stud delay-pour joint structure comprises precast hollow pier stud 1, pier stud basis 10 and rear pouring concrete pier wall 6.
The pre-buried junction steel plate of pier stud basis 10 end face 8 and basic top high-strength bolt 7, and be provided with mounting limit block 13 in center.Wherein, mounting limit block 13 adopts diameter to be 315mm, the high reinforced concrete post for 180mm; Pier stud basis 10 adopts quadrangular structures, and end face becomes specification to be the square of 3000mm × 3000mm, pre-buried 6 pieces of fan ring junction steel plates 8; Fan ring junction steel plate 8 adopts grade strength to be that the steel plate of Q235B is prefabricated and forms, specification is 550mm × 314.2mm × 14mm, apart from 180mm place, outer arc limit, reserved 1 diameter is the bolt hole of 12mm to every block junction steel plate 8, the U-shaped connecting reinforcement 9 of 1 strength grade HRB400, diameter 16mm, total length 1200mm is welded at line place of bottom center, and end face welds 1 piece of junction steel plate limiting plate 14.
Pier stud basis 10 is built after maintenance completes, and installs nut, tighten fixing to the embedded foundation top high-strength bolt 7 through fan ring junction steel plate 8.
Precast hollow pier stud 1 is arranged on pier stud basis 10.Precast hollow pier stud 1 is reinforced concrete structure, and external diameter is 1200mm, and internal diameter is 700mm, and its bottom part ring is to each pre-buried 12 groups of pier stud sidewall high-strength bolts 4 and connect peg 2, and Covered with Angles casing 3; Steel pile casting 3 adopts grade strength to be that the steel plate of Q235B is prefabricated and forms, and is highly 500mm, is connected and fixed by pier stud sidewall high-strength bolt 4 and precast hollow pier stud 1; Steel pile casting 3 outer wall hoop uniform welding 6 groups of trapezoidal steel floors 5, often organize 2 pieces, and welding position is corresponding with fanning the pre-buried position of ring junction steel plate, and trapezoidal steel floor 5 also adopts grade strength to be that the steel plate of Q235B is prefabricated and forms, and specification is 500mm × 300mm × 10mm.
After precast hollow pier stud 1 has lifted, first steel pile casting 3 base bottom precast hollow pier stud 1 and fan ring junction steel plate 8 are welded to connect, then the base of trapezoidal steel floor 5 is welded to connect with fan ring junction steel plate 8 successively.
After welding procedure completes, install rim of a cup shape template in outside, precast hollow pier stud 1 end according to design is unified, and build self-compacting concrete formation concrete pier wall 6, concrete pier wall 6 height is 1000mm, and end face diameter is 2000mm, and basal diameter is 2600mm; Meanwhile, pour into slightly expanded concrete in precast hollow pier stud 1 boring position, form concrete and fill out core section 12, core section height filled out by concrete is 1200mm.
The construction method of bridge prefabrication hollow pier stud delay-pour joint structure, mainly comprises following construction sequence:
1) prepare before construction: according to design drawing, process job site, draw construction outline line, measure pier stud base position, organizing construction's material, machinery, personnel are in place;
2) pier stud foundation construction: in pile foundation position according to designing requirement assembling reinforcement, install template, pre-buried fan ring junction steel plate and high-strength bolt; At the U-shaped connecting reinforcement of design attitude vertical welding and limiting plate before fan ring junction steel plate is pre-buried, and high-strength bolt is through fan ring junction steel plate preformed hole, then carries out the concrete pouring construction on pier stud basis, installation nut after concrete curing completes;
3) precast hollow pier stud is installed: install pre-manufactured steel casing bottom precast hollow pier stud, pre-manufactured steel casing outer wall welds trapezoidal steel floor, and is connected and fixed by nut and the pre-buried high-strength bolt of precast hollow pier stud sidewall;
4) precast hollow pier stud lifting: after steel pile casting and the installation of steel floor, by special hoisting plant equipment by precast hollow pier stud hoisted in position;
5) connecting elements welding: before welding procedure, checks whether pier stud Hoisting Position meets design requirement; During welding, first fan ring junction steel plate pre-buried in steel pile casting base and pier stud basis is welded to connect, more trapezoidal steel floor base and fan ring junction steel plate are welded to connect;
6) concrete pier wall construction: install template according to designing requirement, primary concreting completes concrete pier wall, the concrete pier wall energy simultaneously guaranteeing after-pouring is evenly and wrap each connecting elements completely;
7) construction of core section filled out by concrete: pour into slightly expanded concrete in its hollow position of precast hollow pier stud, forms concrete and fills out core section.

Claims (7)

1. a bridge prefabrication hollow pier stud delay-pour joint structure, is characterized in that described structure comprises precast hollow pier stud, pier stud basis and rear pouring concrete Dun Bi; Described pier stud basis end face is embedded with junction steel plate, and its center is provided with the mounting limit block of restriction precast hollow pier stud installation site; Described precast hollow pier stud is fixed on pier stud basis by junction steel plate; Precast hollow pier stud Covered with Angles casing, steel pile casting outer wall is provided with steel floor; Concrete pier wall has been built in periphery bottom precast hollow pier stud, and boring position is filled with has the concrete formed by slightly expanded concrete to fill out core section.
2. bridge prefabrication according to claim 1 hollow pier stud delay-pour joint structure, it is characterized in that described mounting limit block is cylindrical limited block, centered by the cylindrical limited block center of circle, hoop is evenly provided with junction steel plate, pre-buried high-strength bolt in the pier stud basis of junction steel plate centerline.
3. bridge prefabrication according to claim 2 hollow pier stud delay-pour joint structure, it is characterized in that described junction steel plate is in fan ring structure, fan ring junction steel plate prepared screw-bolt hole, bolt hole position is corresponding with high-strength bolt position pre-buried in pier stud basis, precast hollow pier stud limiting plate is provided with, the U-shaped connecting reinforcement of soffit vertical welding at fan ring junction steel plate upper surface.
4. bridge prefabrication according to claim 3 hollow pier stud delay-pour joint structure, even pre-buried connection peg and high-strength bolt on the bottom vertical sidewall that it is characterized in that described precast hollow pier stud, and it is pre-buried above high-strength bolt to connect peg.
5. bridge prefabrication according to claim 4 hollow pier stud delay-pour joint structure, is characterized in that described steel pile casting internal diameter is identical with precast hollow pier stud external diameter; Steel pile casting surface prepared screw-bolt hole, bolt hole position is corresponding with the high-strength bolt of precast hollow pier stud sidewall.
6. bridge prefabrication according to claim 5 hollow pier stud delay-pour joint structure, it is characterized in that described steel floor is trapezium structure, trapezoidal steel floor installation site is corresponding with fan ring junction steel plate position, and trapezoidal steel floor side and steel pile casting outer wall are welded to connect, base is welded to connect with fan ring upper surface of steel plate.
7. bridge prefabrication according to claim 6 hollow pier stud delay-pour joint structure, is characterized in that described concrete pier wall wraps completely and connects peg, steel pile casting, trapezoidal steel floor and fan ring junction steel plate.
CN201420541768.5U 2014-09-19 2014-09-19 A kind of bridge prefabrication hollow pier stud delay-pour joint structure Active CN204097864U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104746422A (en) * 2014-09-19 2015-07-01 杭州江润科技有限公司 Bridge prefabricated hollow pier column post-poured connecting structure and construction method
CN108103926A (en) * 2017-12-25 2018-06-01 中交第二公路勘察设计研究院有限公司 Assembled hollow pier and its construction method based on end plate welding
CN109235892A (en) * 2018-09-14 2019-01-18 北京城建十六建筑工程有限责任公司 A method of error correction is poured for large-scale beam column
CN112575676A (en) * 2019-09-30 2021-03-30 比亚迪股份有限公司 Track support assembly and construction method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104746422A (en) * 2014-09-19 2015-07-01 杭州江润科技有限公司 Bridge prefabricated hollow pier column post-poured connecting structure and construction method
CN108103926A (en) * 2017-12-25 2018-06-01 中交第二公路勘察设计研究院有限公司 Assembled hollow pier and its construction method based on end plate welding
CN108103926B (en) * 2017-12-25 2019-07-16 中交第二公路勘察设计研究院有限公司 Assembled hollow pier and its construction method based on end plate welding
CN109235892A (en) * 2018-09-14 2019-01-18 北京城建十六建筑工程有限责任公司 A method of error correction is poured for large-scale beam column
CN112575676A (en) * 2019-09-30 2021-03-30 比亚迪股份有限公司 Track support assembly and construction method thereof

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CB03 Change of inventor or designer information

Inventor after: Hu Yiping

Inventor after: Xia Yonghong

Inventor after: Chen Guanglong

Inventor after: Ling Hongyi

Inventor after: Xu Yongjun

Inventor after: Liu Wei

Inventor after: Cheng Caizao

Inventor after: Jin Liang

Inventor after: Wang Fei

Inventor before: Hu Yiping

Inventor before: Xia Yonghong

Inventor before: Chen Guanglong

C53 Correction of patent for invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: HU YIPING XIA YONGHONG CHEN GUANGLONG TO: HU YIPING XIA YONGHONG CHEN GUANGLONG LING HONGYI XU YONGJUN LIU WEI CHENG CAIZAO JIN LIANG WANG FEI

CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 230041 Suixi Road, Anhui, China, No. 310, No.

Patentee after: Anhui traffic construction Limited by Share Ltd

Address before: 230041 No. 310, Suixi Road, Luyang District, Anhui, Hefei

Patentee before: ANHUI GOURGEN TRAFFIC CONSTRUCTION CO., LTD.