CN203603039U - Prefabricated assembled pier with built-in unbonded prestressed tendon - Google Patents

Prefabricated assembled pier with built-in unbonded prestressed tendon Download PDF

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Publication number
CN203603039U
CN203603039U CN201320823886.0U CN201320823886U CN203603039U CN 203603039 U CN203603039 U CN 203603039U CN 201320823886 U CN201320823886 U CN 201320823886U CN 203603039 U CN203603039 U CN 203603039U
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China
Prior art keywords
prestressed tendon
hole
vertical pillar
reinforcing steel
presstressed reinforcing
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CN201320823886.0U
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Chinese (zh)
Inventor
王志强
周振兴
闫兴非
周良
查义强
姜海西
葛继平
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Shanghai Urban Construction Design Research Institute Co ltd
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Shanghai Urban Construction Design Research Institute Co ltd
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Priority to CN201320823886.0U priority Critical patent/CN203603039U/en
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Abstract

The utility model discloses a prefabricated assembled pier with a built-in unbonded prestressed tendon. The prefabricated assembled pier with the built-in unbonded prestressed tendon comprises a vertical pillar and a bearing platform, wherein the vertical pillar is arranged on the bearing platform, and the vertical pillar is formed by vertically overlapping and assembling a plurality of prefabricated vertical pillar sections. A through hole is arranged along the middle axis of the vertical pillar in a penetrating mode, the prestressed tendon is arranged in the through hole in a tensioning and penetrating mode, the lower end of the prestressed tendon is fixed to the bearing platform in an anchoring mode, the upper end of the prestressed tendon is fixed to the upper end surface of the vertical pillar in an anchoring mode, and the prestressed tendon is in clearance fit with the inner wall of the through hole. According to the prefabricated assembled pier with the built-in unbonded prestressed tendon, the through hole is formed in the middle axis of the vertical pillar, the prestressed tendon penetrates through the through hole in an unbonded mode, and the anti-seismic property of the pier and the self-resetting capacity after an earthquake are improved. Therefore, the prefabricated assembled pier with the built-in unbonded prestressed tendon is particularly suitable for high-intensity earthquake regions, can effectively control compactness cracking of each assembling seam on the vertical pillar, and is favorable for improving the shear resistance under an earthquake.

Description

Mid-unbonded prestressing tendon precast assembly bridge pier
Technical field
The utility model relates to construction of road and bridge technical field, relates in particular to a kind of mid-unbonded prestressing tendon precast assembly bridge pier.
Background technology
At present, assembled bridge pier structure uses for a long time, and compared with ripe cast in situs construction technology or integral prefabricated construction technology, it has the advantages such as can scale prefabricated, convenient transportation, construction period be short.Bridge pier be supporting bridge across agent structure, not only bear the whole load that bridge span structure transmits, but also directly bear the multiple loads such as soil pressure, water flow impact pressure, ice pressure, ship impact force, so bridge pier must have enough intensity, rigidity and stability.Especially be arranged on the bridge pier of high intensity Zone, have higher requirement for anti-seismic performance and the self-resetting capability of bridge pier structure, existing bridge pier structure needs further to be improved.
Utility model content
Because the above-mentioned defect that prior art exists, the utility model provides a kind of mid-unbonded prestressing tendon precast assembly bridge pier with good anti-seismic performance and self-resetting capability.
For achieving the above object, the utility model provides a kind of mid-unbonded prestressing tendon precast assembly bridge pier, comprises column and cushion cap, and described column is arranged on described cushion cap, and described column forms by some prefabricated stand column sections vertical pile are assembled.Wherein, run through and be preset with a through hole along the position, axis of described column, in described through hole, stretch-draw is equipped with presstressed reinforcing steel, the bottom of described presstressed reinforcing steel is anchored on described cushion cap, the upper end of described presstressed reinforcing steel is anchored at the upper surface of described column, and the inside wall of described presstressed reinforcing steel and described through hole is matched in clearance.
Preferably, described presstressed reinforcing steel is prestressing steel wire bunch.
Preferably, described presstressed reinforcing steel is prestressing force indented bars.
In sum, mid-unbonded prestressing tendon precast assembly bridge pier of the present utility model is offered through hole by the position, axis at column, and wear presstressed reinforcing steel without boning in through hole, improve greatly the anti-seismic performance of bridge pier, and self-resetting capability after earthquake, therefore the utility model is particularly useful for high intensity Zone, and the utility model effectively the compactness cracking of the each assembled seam on column control and be conducive to improve the shearing resistance effect under earthquake.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 is the layout plan of the mid-unbonded prestressing tendon precast assembly bridge pier of the present embodiment.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
The specific embodiment
Fig. 1 is the layout plan of the mid-unbonded prestressing tendon precast assembly bridge pier of the present embodiment, the A-A cross-sectional view that Fig. 2 is Fig. 1.As depicted in figs. 1 and 2, this specific embodiment proposes a kind of mid-unbonded prestressing tendon precast assembly bridge pier, comprises column 10 and cushion cap 20, and column 10 is arranged on cushion cap 20, and column 10 forms by some prefabricated stand column sections 11 vertical pile are assembled.Wherein, run through and be preset with a through hole 12 along the position, axis of column 10, in through hole 12, stretch-draw is equipped with presstressed reinforcing steel 30, the bottom of presstressed reinforcing steel 30 is anchored on cushion cap 20, the upper end of presstressed reinforcing steel 30 is anchored at the upper surface of column 10, and presstressed reinforcing steel 30 is matched in clearance with the inside wall of through hole 12.
Exemplary, the present embodiment presstressed reinforcing steel 30 is prestressing force indented bars, presstressed reinforcing steel 30 bottom spiral shells are established and are anchored on cushion cap 20, presstressed reinforcing steel 30 upper ends are by the solid tensioned prestressing bar of nut 40 spiral shells, the inside of presstressed reinforcing steel 30 in through hole 12 and the inside wall maintenance matched in clearance of through hole 12, the material such as fill concrete not in through hole 12, presstressed reinforcing steel 30 keeps certain interval with through hole 12 inside walls, without bond state, its concrete gap length arranges according to actual needs, repeats no more herein.
Certainly,, in other specific embodiments, described presstressed reinforcing steel can also adopt other outsourcing pieces such as prestressing steel wire bunch, from then on repeats no more.
Exemplary, the mid-unbonded prestressing tendon precast assembly bridge pier of the present embodiment is specifically applied in to high intensity Zone, offer through hole 12 by the position, axis at column 10, and bond and wear presstressed reinforcing steel 30 in the interior nothing of through hole 12, improve greatly the anti-seismic performance of bridge pier, and self-resetting capability after earthquake, and effectively the compactness cracking of the each assembled seam on column 10 is controlled and is conducive to improve the shearing resistance effect under earthquake.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in by the determined protection domain of claims.

Claims (3)

1. a mid-unbonded prestressing tendon precast assembly bridge pier, comprises column and cushion cap, and described column is arranged on described cushion cap, and described column forms by some prefabricated stand column sections vertical pile are assembled; It is characterized in that: run through and be preset with a through hole along the position, axis of described column, in described through hole, stretch-draw is equipped with presstressed reinforcing steel, the bottom of described presstressed reinforcing steel is anchored on described cushion cap, the upper end of described presstressed reinforcing steel is anchored at the upper surface of described column, and the inside wall of described presstressed reinforcing steel and described through hole is matched in clearance.
2. mid-unbonded prestressing tendon precast assembly bridge pier as claimed in claim 1, is characterized in that: described presstressed reinforcing steel is prestressing steel wire bunch.
3. mid-unbonded prestressing tendon precast assembly bridge pier as claimed in claim 1, is characterized in that: described presstressed reinforcing steel is prestressing force indented bars.
CN201320823886.0U 2013-12-13 2013-12-13 Prefabricated assembled pier with built-in unbonded prestressed tendon Active CN203603039U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320823886.0U CN203603039U (en) 2013-12-13 2013-12-13 Prefabricated assembled pier with built-in unbonded prestressed tendon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320823886.0U CN203603039U (en) 2013-12-13 2013-12-13 Prefabricated assembled pier with built-in unbonded prestressed tendon

Publications (1)

Publication Number Publication Date
CN203603039U true CN203603039U (en) 2014-05-21

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Country Status (1)

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CN (1) CN203603039U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104343080A (en) * 2014-09-29 2015-02-11 北京工业大学 Method for constructing segmental prefabricating and assembling swing foundation pier
CN104612038A (en) * 2015-01-22 2015-05-13 宁波大学 Flange-connecting concrete-filled double-wall steel pipe prefabricated assembly piers with additional dampers
CN106592440A (en) * 2016-12-30 2017-04-26 河南省交通规划设计研究院股份有限公司 Construction method of prefabricated segment type pier
WO2019149270A1 (en) * 2018-02-05 2019-08-08 横琴共轭科技有限公司 Assembled pier for mixed reinforcement of normal steel rebar and finished threaded steel bar
CN110359360A (en) * 2019-05-13 2019-10-22 中国公路工程咨询集团有限公司 Self- recoverage bridge pier structure and bridge
CN110359363A (en) * 2019-07-26 2019-10-22 山东建筑大学 Prestressing force assembled Self-resetting bridge pier column node and method are cohered in a kind of part
CN112921789A (en) * 2021-01-20 2021-06-08 同济大学 Structure structure of self-resetting socket-and-spigot type ECC (error correction code) mixed bridge pier and splicing method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104343080A (en) * 2014-09-29 2015-02-11 北京工业大学 Method for constructing segmental prefabricating and assembling swing foundation pier
CN104612038A (en) * 2015-01-22 2015-05-13 宁波大学 Flange-connecting concrete-filled double-wall steel pipe prefabricated assembly piers with additional dampers
CN106592440A (en) * 2016-12-30 2017-04-26 河南省交通规划设计研究院股份有限公司 Construction method of prefabricated segment type pier
CN106592440B (en) * 2016-12-30 2018-03-16 河南省交通规划设计研究院股份有限公司 A kind of construction method of prefabricated subsection type bridge pier
WO2019149270A1 (en) * 2018-02-05 2019-08-08 横琴共轭科技有限公司 Assembled pier for mixed reinforcement of normal steel rebar and finished threaded steel bar
CN110359360A (en) * 2019-05-13 2019-10-22 中国公路工程咨询集团有限公司 Self- recoverage bridge pier structure and bridge
CN110359363A (en) * 2019-07-26 2019-10-22 山东建筑大学 Prestressing force assembled Self-resetting bridge pier column node and method are cohered in a kind of part
CN112921789A (en) * 2021-01-20 2021-06-08 同济大学 Structure structure of self-resetting socket-and-spigot type ECC (error correction code) mixed bridge pier and splicing method thereof

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