CN101649621A - Technology for constructing anti-collision bridge pier by steel cofferdam - Google Patents

Technology for constructing anti-collision bridge pier by steel cofferdam Download PDF

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Publication number
CN101649621A
CN101649621A CN200910104353A CN200910104353A CN101649621A CN 101649621 A CN101649621 A CN 101649621A CN 200910104353 A CN200910104353 A CN 200910104353A CN 200910104353 A CN200910104353 A CN 200910104353A CN 101649621 A CN101649621 A CN 101649621A
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China
Prior art keywords
steel cofferdam
bridge pier
collision
technology
internal layer
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Pending
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CN200910104353A
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Chinese (zh)
Inventor
耿波
王福敏
汪宏
郑兮
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China Merchants Chongqing Communications Research and Design Institute Co Ltd
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China Merchants Chongqing Communications Research and Design Institute Co Ltd
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Priority to CN200910104353A priority Critical patent/CN101649621A/en
Publication of CN101649621A publication Critical patent/CN101649621A/en
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Abstract

The invention discloses a technology for constructing an anti-collision bridge pier by a steel cofferdam. The upper part of a pile steel protection cylinder is provided with a horizontal fixed bottomplate; a prefabricated anti-collision steel cofferdam is erected on the bottom plate, and the top of the anti-collision steel cofferdam is higher than the water surface; sealed foundation concrete ispoured on the bottom plate, water in the anti-collision steel cofferdam is pumped, the anti-collision steel cofferdam has double functions and integrates the water blocking function of a conventionalsteel cofferdam and the anti-collision function of a bridge pier permanent, and an inner layer is used as a template for pouring a support platform on the sealed foundation concrete; a bridge pier ora pylon is poured on the support platform; and the invention adopts an anti-collision steel cofferdam structure with a sandwich structure and has better energy absorption effect, the support platformand an internal plate of a sleeve box are directly poured into a whole after pouring is completed, the anti-collision steel cofferdam acts as an anti-collision function after construction, and the processes of disassembling and assembling the template are omitted, thereby the construction process can be simplified, the construction efficiency is enhanced, the construction period of a main body isnot occupied, the bonding strength with the bridge pier is higher, the bridge pier can not be damaged during construction and the construction quality is ensured.

Description

Utilize the technology of steel cofferdam constructing anti-collision bridge pier
Technical field
The present invention relates to a kind of bridge structure, particularly a kind of technology of utilizing the steel cofferdam constructing anti-collision bridge pier.
Background technology
The pier anticollision measure of bridge is the important means that ensures bridge security, and main hazard derives from the ship collision bridge pier.The pier anticollision measure damages bridge pier for preventing ship, mainly comprise direct-connected anticollision device, collision-prevention device and indirect anticollision device, collision-prevention device, anticollision device, collision-prevention device is provided with structures such as man-made island, dolphin around being included in bridge pier indirectly, can solve the pier anticollision problem preferably, but floor space is big, can only be arranged on the more shallow and basic good position, riverbed of the depth of water, is not suitable for the less waters of river course area and uses, simultaneously, construction cost is higher; Direct-connected anticollision device, collision-prevention device is set directly on the bridge pier to be protected bridge pier; comprise elastic deformation structure, plastic strain buffer structure etc.; what generally adopt is to fixedly install elasticity or plastic strain device around bridge pier; absorb energy by elastic deformation and plastic strain; opposing is to the impact of bridge pier, and the anticollision device, collision-prevention device of elastic deformation can only be applicable to that impact not quite or not is the occasion of directly clashing into.The anticollision device, collision-prevention device of plastic strain buffer structure relies on the bump of plastic strain buffering ship to bridge pier, and structural volume is less, and it is less to take water surface area, and the energy absorption effect is preferable.In the prior art, the plastic strain buffer structure generally adopts plastic strain cover, work progress complexity is installed around the bridge pier of moulding, efficiency of construction is low, takies the main body construction cycle, and not high with the bond strength of bridge pier, bridge pier is caused certain damage, and construction quality is relatively poor.
Therefore, need a kind of pier anticollision technology, not only device has energy absorption effect preferably, and install and use in the process and can simplify work progress, improve efficiency of construction, do not take the main body construction cycle, and higher with the bond strength of bridge pier, bridge pier is not caused damage during construction, guarantee construction quality.
Summary of the invention
In view of this, the invention provides a kind of technology of utilizing the steel cofferdam constructing anti-collision bridge pier, not only device has energy absorption effect preferably, and install and use in the process and can simplify work progress, improve efficiency of construction, do not take the main body construction cycle, and higher with the bond strength of bridge pier, bridge pier is not caused damage during construction, guarantee construction quality.
The technology of utilizing the steel cofferdam constructing anti-collision bridge pier of the present invention may further comprise the steps:
A. construction stake basis, and the horizontal fixed base plate is set on stake steel casing top;
B. prefabricated crashproof steel cofferdam is stood up on base plate, crashproof steel cofferdam is risen in the water surface; Described crashproof steel cofferdam comprises internal layer and skin, and described internal layer and skin surround respectively and be fixedly connected to form the sandwich casing by connector;
C. the basic concrete of cast sealing on base plate is drained the water in the crashproof steel cofferdam, is template cast cushion cap with the internal layer on the basic concrete of sealing;
D. on cushion cap, pour into a mould bridge pier or king-post.
Further, internal layer among the step b and outer field inner surface are provided with vertical stiffening rib and horizontal stiffening rib respectively;
Further, connector comprise be set up in parallel and respectively with the stull of internal layer and outer inner surface welding, described stull horizontally forms stull row;
Further, fixedly install horizontal baffle between the stull in the described same horizontal plane, weld vertical clapboard between internal layer and the outer inner surface;
Further, the spacing between the adjacent stull row is not less than 0.5m;
Further, described crashproof steel cofferdam is bearing on the cushion cap by the supporting leg of uniform setting around the inner layer outer surface, among the step c, eliminates the gap by pour concrete between cushion cap end face and the supporting leg;
Further, the cushion cap end face is along circumferentially being provided with the concrete block, and described concrete block is near the internal layer surface;
Further, described vertical stiffening rib and horizontal stiffening rib include strong rib and weak rib, and described strong rib is that i iron is welded on internal layer and outer field inner surface constitutes, and weak rib is that angle steel is welded on internal layer and outer field inner surface constitutes;
Further, at least two weak ribs are set between the adjacent strong rib.
Beneficial effect of the present invention: the technology of utilizing the steel cofferdam constructing anti-collision bridge pier of the present invention, adopt the crashproof steel cofferdam structure of sandwich, has energy absorption effect preferably, during installation, directly prefabricated crashproof steel cofferdam is arranged on the Bridge Pier Construction scene, the piling back is provided with base plate on the stake top, crashproof steel cofferdam stands up on base plate, the basic concrete of cast on base plate, be template cast cushion cap with crashproof steel cofferdam inner panel then, crashproof steel cofferdam is that the dual function with conventional steel cofferdam dash function and the permanent crashproof function of bridge pier unites two into one, build finish the back cushion cap directly and the casing inner panel build and be one, the rear anti-crash of constructing steel cofferdam plays crashproof effect, crashproof steel cofferdam is directly as template during construction, save the template disassembly process, thereby can simplify work progress, improve efficiency of construction, do not take the main body construction cycle, and higher with the bond strength of bridge pier, bridge pier is not caused damage during construction, guarantee construction quality.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a mounted configuration schematic diagram of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a lateral cross section structural representation of the present invention;
Fig. 4 is a longitudinal cross-section of the present invention structural representation.
The specific embodiment
Fig. 1 is a mounted configuration schematic diagram of the present invention, Fig. 2 is the vertical view of Fig. 1, and Fig. 3 is a lateral cross section structural representation of the present invention, and Fig. 4 is a longitudinal cross-section of the present invention structural representation, as shown in the figure: the technology of utilizing the steel cofferdam constructing anti-collision bridge pier of present embodiment may further comprise the steps:
A. underwater driving, and base plate 12 is set in stake 9 top horizontal fixed;
B. prefabricated crashproof steel cofferdam is stood up on base plate, crashproof steel cofferdam is risen in the water surface; Described crashproof steel cofferdam comprises internal layer 2 and outer 1, described internal layer 2 and outer 1 surrounds respectively and is fixedly connected to form the sandwich casing by connector, in the present embodiment, the inner surface of internal layer 2 and skin 1 is provided with vertical stiffening rib 4 and horizontal stiffening rib 5 respectively, described vertical stiffening rib 4 and horizontal stiffening rib 5 include strong rib and weak rib, described strong rib is the inner surface formation that i iron is welded on internal layer 2 and skin 1, and weak rib is the inner surface formation that angle steel is welded on internal layer 2 and outer 1; Five weak ribs are set between the adjacent strong rib, stiffening rib structure is set, be beneficial to the intensity that guarantees internal layer 2 and outer 1, thereby guarantee pier anticollision steel cofferdam impact resistance function, increase the service life; The arrangement of the weak rib of strong rib under the prerequisite that guarantees crashproof function, alleviates crashproof steel cofferdam weight, saves cost of manufacture; Connector comprise be set up in parallel and respectively with the stull 3 of internal layer 2 and outer 1 inner surface welding, described stull 3 horizontally forms stulls row, the spacing between the adjacent stull row is not less than 0.5m, guaranteed strength, economical with materials; Fixedly install horizontal baffle 6 between the stull 3 in the same horizontal plane, strengthen the lateral ties between the stull 3, further guarantee crashproof intensity; Weld vertical clapboard (not marking among the figure) between internal layer 2 and outer 1 inner surface, and the spacing between crashproof steel cofferdam internal layer of horizontal baffle common guarantee and the skin, crashproof characteristic improved; The height of the crashproof steel cofferdam apical margin that is adopted determines that according to the pier anticollision needs height of root edge is determined by the design altitude of cushion cap back cover concrete.
C. the basic concrete 13 of cast sealing on base plate 12 is drained the water in the crashproof steel cofferdam, be that template is poured into a mould cushion cap 10 with internal layer 2 on the basic concrete 13 of sealing, and it is simple and convenient to construct, and saves template, greatly the reduction of erection time; Crashproof steel cofferdam top is positioned at the uniform supporting leg 8 that extends to the casing center line that is provided with of internal layer 2 external surfaces (be crashproof steel cofferdam contact with cushion cap 10 surface) on every side, eliminate the gap by pour concrete 15 between cushion cap end face and the supporting leg, the weight of utilizing cushion cap 10 to bear crashproof steel cofferdam guarantees to install and crashproof intensity; Cushion cap 10 end faces are along circumferentially being provided with concrete block 14, and described concrete block 14 is near inner layer outer surface, and guaranteeing increases structural strength in the crashproof process, improves crashworthiness;
D. on cushion cap 10, pour into a mould bridge pier or king-post 11.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (9)

1. technology of utilizing the steel cofferdam constructing anti-collision bridge pier is characterized in that: may further comprise the steps:
A. construction stake basis, and the horizontal fixed base plate is set on stake steel casing top;
B. prefabricated crashproof steel cofferdam is stood up on base plate, crashproof steel cofferdam is risen in the water surface; Described crashproof steel cofferdam comprises internal layer and skin, and described internal layer and skin surround respectively and be fixedly connected to form the sandwich casing by connector;
C. the basic concrete of cast sealing on base plate is drained the water in the crashproof steel cofferdam, is template cast cushion cap with the internal layer on the basic concrete of sealing;
D. on cushion cap, pour into a mould bridge pier or king-post.
2. the technology of utilizing the steel cofferdam constructing anti-collision bridge pier according to claim 1 is characterized in that: internal layer among the step b and outer field inner surface are provided with vertical stiffening rib and horizontal stiffening rib respectively.
3. the technology of utilizing the steel cofferdam constructing anti-collision bridge pier according to claim 2 is characterized in that: connector comprise be set up in parallel and respectively with the stull of internal layer and outer inner surface welding, described stull horizontally forms stull row.
4. the technology of utilizing the steel cofferdam constructing anti-collision bridge pier according to claim 3 is characterized in that: fixedly install horizontal baffle between the stull in the described same horizontal plane, weld vertical clapboard between internal layer and the outer inner surface.
5. the technology of utilizing the steel cofferdam constructing anti-collision bridge pier according to claim 4 is characterized in that: the spacing between the adjacent stull row is not less than 0.5m.
6. the technology of utilizing the steel cofferdam constructing anti-collision bridge pier according to claim 5, it is characterized in that: described crashproof steel cofferdam is bearing on the cushion cap by the supporting leg of uniform setting around the inner layer outer surface, among the step c, eliminate the gap by pour concrete between cushion cap end face and the supporting leg.
7. the technology of utilizing the steel cofferdam constructing anti-collision bridge pier according to claim 6 is characterized in that: the cushion cap end face is along circumferentially being provided with the concrete block, and described concrete block is near the internal layer surface.
8. according to the described technology of utilizing the steel cofferdam constructing anti-collision bridge pier of the arbitrary claim of claim 1 to 7, it is characterized in that: described vertical stiffening rib and horizontal stiffening rib include strong rib and weak rib, described strong rib is that i iron is welded on internal layer and outer field inner surface constitutes, and weak rib is that angle steel is welded on internal layer and outer field inner surface constitutes.
9. the technology of utilizing the steel cofferdam constructing anti-collision bridge pier according to claim 8 is characterized in that: at least two weak ribs are set between the adjacent strong rib.
CN200910104353A 2009-07-16 2009-07-16 Technology for constructing anti-collision bridge pier by steel cofferdam Pending CN101649621A (en)

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101914923A (en) * 2010-07-30 2010-12-15 中铁四局集团第六工程有限公司 Bearing reaction restraining fixed structure of height crane gantry
CN102031755A (en) * 2010-11-26 2011-04-27 哈尔滨工程大学 Multifunctional permanent template for girder bridge gravity type pier
CN102051864A (en) * 2010-12-09 2011-05-11 同济大学 Novel energy-dissipating and collision-avoided steel sleeve box
CN102936899A (en) * 2012-09-11 2013-02-20 武汉二航路桥特种工程有限责任公司 Method for installing steel cofferdam by the aid of pier supporting frame
CN103015372A (en) * 2013-01-10 2013-04-03 江苏博泓新材料科技有限公司 Composite thin-shell sand-building cofferdam protection system for bridges
CN103374923A (en) * 2013-07-25 2013-10-30 天津二十冶建设有限公司 Method for prefabricating and mounting underwater pier
CN103966980A (en) * 2014-05-21 2014-08-06 湖南大学 Steel-concrete combined ship-bridge-collision preventing device of bridge and ship-bridge- collision preventing bridge
CN104099860A (en) * 2014-06-20 2014-10-15 中铁大桥勘测设计院集团有限公司 Ice breaking body for bridge towers and bridge piers in seasonal freeze-up river and construction method
CN105040716A (en) * 2014-10-01 2015-11-11 杜东升 Bridge and bridge pier cofferdam integral equipment and construction method for same
CN105239591A (en) * 2015-09-28 2016-01-13 中铁大桥勘测设计院集团有限公司 Steel pipe driven pile foundation with steel boxed cofferdam and dual bearing platforms, and construction method of foundation
CN109056508A (en) * 2018-08-29 2018-12-21 中铁大桥局武汉桥梁特种技术有限公司 The construction method of the bridge pier of basic protection against erosion, bridge and underwater foundation protection against erosion
CN109137832A (en) * 2018-10-26 2019-01-04 武汉海威船舶与海洋工程科技有限公司 Bridge pier protection guard
CN109537443A (en) * 2018-12-28 2019-03-29 中交二航局第四工程有限公司 Bridge pier anticollision device, collision-prevention device and its construction method
CN111139858A (en) * 2020-01-16 2020-05-12 长江勘测规划设计研究有限责任公司 Pier bearing platform located on bank slope of reservoir area and having ship collision risk and construction method
CN111622247A (en) * 2020-05-22 2020-09-04 中铁大桥局集团有限公司 U-shaped water retaining cofferdam structure and construction method thereof
CN111778837A (en) * 2020-06-24 2020-10-16 浙江博澳节能科技有限公司 Bridge ship collision prevention structure

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101914923B (en) * 2010-07-30 2012-06-13 中铁上海工程局有限公司 Bearing reaction restraining fixed structure of height crane gantry
CN101914923A (en) * 2010-07-30 2010-12-15 中铁四局集团第六工程有限公司 Bearing reaction restraining fixed structure of height crane gantry
CN102031755A (en) * 2010-11-26 2011-04-27 哈尔滨工程大学 Multifunctional permanent template for girder bridge gravity type pier
CN102031755B (en) * 2010-11-26 2012-06-06 哈尔滨工程大学 Multifunctional permanent template for girder bridge gravity type pier
CN102051864A (en) * 2010-12-09 2011-05-11 同济大学 Novel energy-dissipating and collision-avoided steel sleeve box
CN102936899B (en) * 2012-09-11 2015-03-18 武汉二航路桥特种工程有限责任公司 Method for installing steel cofferdam by the aid of pier supporting frame
CN102936899A (en) * 2012-09-11 2013-02-20 武汉二航路桥特种工程有限责任公司 Method for installing steel cofferdam by the aid of pier supporting frame
CN103015372A (en) * 2013-01-10 2013-04-03 江苏博泓新材料科技有限公司 Composite thin-shell sand-building cofferdam protection system for bridges
CN103015372B (en) * 2013-01-10 2015-07-01 江苏博泓新材料科技有限公司 Composite thin-shell sand-building cofferdam protection system for bridges
CN103374923A (en) * 2013-07-25 2013-10-30 天津二十冶建设有限公司 Method for prefabricating and mounting underwater pier
CN103966980A (en) * 2014-05-21 2014-08-06 湖南大学 Steel-concrete combined ship-bridge-collision preventing device of bridge and ship-bridge- collision preventing bridge
CN103966980B (en) * 2014-05-21 2016-04-13 湖南大学 Steel-concrete combined bridge anti-ship collision device and anti-vessel-bridge collision
CN104099860A (en) * 2014-06-20 2014-10-15 中铁大桥勘测设计院集团有限公司 Ice breaking body for bridge towers and bridge piers in seasonal freeze-up river and construction method
CN105040716A (en) * 2014-10-01 2015-11-11 杜东升 Bridge and bridge pier cofferdam integral equipment and construction method for same
CN105239591A (en) * 2015-09-28 2016-01-13 中铁大桥勘测设计院集团有限公司 Steel pipe driven pile foundation with steel boxed cofferdam and dual bearing platforms, and construction method of foundation
CN109056508A (en) * 2018-08-29 2018-12-21 中铁大桥局武汉桥梁特种技术有限公司 The construction method of the bridge pier of basic protection against erosion, bridge and underwater foundation protection against erosion
CN109137832A (en) * 2018-10-26 2019-01-04 武汉海威船舶与海洋工程科技有限公司 Bridge pier protection guard
CN109137832B (en) * 2018-10-26 2023-12-12 武汉海威船舶与海洋工程科技有限公司 Bridge pier protecting device
CN109537443A (en) * 2018-12-28 2019-03-29 中交二航局第四工程有限公司 Bridge pier anticollision device, collision-prevention device and its construction method
CN111139858A (en) * 2020-01-16 2020-05-12 长江勘测规划设计研究有限责任公司 Pier bearing platform located on bank slope of reservoir area and having ship collision risk and construction method
CN111139858B (en) * 2020-01-16 2024-05-28 长江勘测规划设计研究有限责任公司 Pier bearing platform with ship collision risk on bank slope of reservoir area and construction method
CN111622247A (en) * 2020-05-22 2020-09-04 中铁大桥局集团有限公司 U-shaped water retaining cofferdam structure and construction method thereof
CN111622247B (en) * 2020-05-22 2021-10-26 中铁大桥局集团有限公司 U-shaped water retaining cofferdam structure and construction method thereof
CN111778837A (en) * 2020-06-24 2020-10-16 浙江博澳节能科技有限公司 Bridge ship collision prevention structure

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Open date: 20100217