CN203603039U - Prefabricated assembled pier with built-in unbonded prestressed tendon - Google Patents
Prefabricated assembled pier with built-in unbonded prestressed tendon Download PDFInfo
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- 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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- 210000002435 tendon Anatomy 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本实用新型公开了一种中置无粘结预应力筋预制拼装桥墩，包括立柱和承台，所述立柱设置在所述承台上，所述立柱由若干预制立柱节段垂直叠放拼装构成。其中，沿所述立柱的中轴线位置贯穿预设有一通孔，所述通孔中张拉穿设有预应力筋，所述预应力筋的下端部锚固在所述承台上，所述预应力筋的上端部锚固在所述立柱的上端面，所述预应力筋与所述通孔的内侧壁为间隙配合。本实用新型通过在立柱的中轴线位置开设通孔，以及在通孔内无粘结地穿设预应力筋，大大的提高了桥墩的抗震性能，以及在地震后的自复位能力，故本实用新型尤其适用于高烈度地震区，且本实用新型能有效的对立柱上的各拼装接缝的密实度开裂进行控制和有利于提高地震下的抗剪力作用。
The utility model discloses a prefabricated assembled bridge pier with no bonded prestressed tendons in the middle, which includes a column and a cap, the column is arranged on the cap, and the column is composed of several prefabricated column sections vertically stacked and assembled . Wherein, a through hole is preset along the central axis of the column, and a prestressed tendon is stretched through the through hole, and the lower end of the prestressed tendon is anchored on the cap. The upper end of the stress tendon is anchored on the upper end surface of the column, and the prestress tendon is in clearance fit with the inner side wall of the through hole. The utility model greatly improves the anti-seismic performance of the pier and the self-resetting ability after the earthquake by opening a through hole at the central axis position of the column, and piercing the prestressed tendon without bonding in the through hole, so the utility model The utility model is especially suitable for high-intensity earthquake areas, and the utility model can effectively control the compactness cracking of each assembly joint on the column and is beneficial to improving the shear force resistance under the earthquake.
Description
技术领域technical field
本实用新型涉及路桥建设技术领域，尤其涉及一种中置无粘结预应力筋预制拼装桥墩。The utility model relates to the technical field of road and bridge construction, in particular to a prefabricated assembled bridge pier with non-bonded prestressed tendons placed in the middle.
背景技术Background technique
目前，拼装桥墩结构使用已久，与成熟的现场浇筑施工工艺或整体预制施工工艺相比，其具有可规模化预制、运输方便、施工工期短等优点。桥墩是支承桥跨的主体结构，不仅承受桥跨结构传来的全部荷载，而且还直接承受土压力、水流冲击力、冰压力、船舶撞击力等多种荷载，所以桥墩必须具有足够的强度、刚度和稳定性。尤其是设置在高烈度地震区的桥墩，对于桥墩结构的抗震性能和自复位能力有着更高的要求，现有的桥墩结构需要进一步加以改进。At present, the assembled pier structure has been used for a long time. Compared with the mature in-situ pouring construction technology or the overall prefabrication construction technology, it has the advantages of large-scale prefabrication, convenient transportation, and short construction period. The bridge pier is the main structure supporting the bridge span. It not only bears all the loads from the bridge span structure, but also directly bears various loads such as earth pressure, water flow impact force, ice pressure, and ship impact force. Therefore, the bridge pier must have sufficient strength, stiffness and stability. In particular, bridge piers located in high-intensity earthquake areas have higher requirements for the seismic performance and self-resetting ability of bridge piers, and the existing bridge piers need to be further improved.
实用新型内容Utility model content
有鉴于现有技术存在的上述缺陷，本实用新型提供一种具有较好的抗震性能和自复位能力的中置无粘结预应力筋预制拼装桥墩。In view of the above-mentioned defects in the prior art, the utility model provides a prefabricated assembled bridge pier with no bonded prestressed tendons in the middle, which has better seismic performance and self-resetting ability.
为实现上述目的，本实用新型提供了一种中置无粘结预应力筋预制拼装桥墩，包括立柱和承台，所述立柱设置在所述承台上，所述立柱由若干预制立柱节段垂直叠放拼装构成。其中，沿所述立柱的中轴线位置贯穿预设有一通孔，所述通孔中张拉穿设有预应力筋，所述预应力筋的下端部锚固在所述承台上，所述预应力筋的上端部锚固在所述立柱的上端面，所述预应力筋与所述通孔的内侧壁为间隙配合。In order to achieve the above purpose, the utility model provides a prefabricated assembled bridge pier with no bonded prestressed tendons in the middle, including a column and a cap, the column is arranged on the cap, and the column is composed of several prefabricated column segments Stacked vertically. Wherein, a through hole is preset along the central axis of the column, and a prestressed tendon is stretched through the through hole, and the lower end of the prestressed tendon is anchored on the cap. The upper end of the stress tendon is anchored on the upper end surface of the column, and the prestress tendon is in clearance fit with the inner side wall of the through hole.
较佳的，所述预应力筋为预应力钢丝束。Preferably, the prestressed tendons are prestressed steel wire bundles.
较佳的，所述预应力筋为预应力螺纹钢筋。Preferably, the prestressed tendons are prestressed threaded steel bars.
综上所述，本实用新型的中置无粘结预应力筋预制拼装桥墩通过在立柱的中轴线位置开设通孔，以及在通孔内无粘结地穿设预应力筋，大大的提高了桥墩的抗震性能，以及在地震后的自复位能力，故本实用新型尤其适用于高烈度地震区，且本实用新型能有效的对立柱上的各拼装接缝的密实度开裂进行控制和有利于提高地震下的抗剪力作用。To sum up, the prefabricated assembled bridge pier with non-bonded prestressed tendons in the middle of the utility model greatly improves the construction efficiency of the pier by opening a through hole at the central axis of the column and setting prestressed tendons in the through hole without bonding. The anti-seismic performance of the bridge piers, and the self-resetting ability after the earthquake, so the utility model is especially suitable for high-intensity earthquake areas, and the utility model can effectively control the compactness cracking of each assembled joint on the column and facilitate Improve the shear force effect under the earthquake.
以下将结合附图对本实用新型的构思、具体结构及产生的技术效果作进一步说明，以充分地了解本实用新型的目的、特征和效果。The conception, specific structure and technical effects of the present utility model will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model.
附图说明Description of drawings
图1为本实施例的中置无粘结预应力筋预制拼装桥墩的平面布置图。Fig. 1 is a plane layout diagram of a prefabricated assembled bridge pier with central unbonded prestressed tendons in this embodiment.
图2为图1的A-A截面剖视图。Fig. 2 is a sectional view of A-A section in Fig. 1 .
具体实施方式Detailed ways
图1为本实施例的中置无粘结预应力筋预制拼装桥墩的平面布置图，图2为图1的A-A截面剖视图。如图1和图2所示，本具体实施例提出一种中置无粘结预应力筋预制拼装桥墩，包括立柱10和承台20，立柱10设置在承台20上，立柱10由若干预制立柱节段11垂直叠放拼装构成。其中，沿立柱10的中轴线位置贯穿预设有一通孔12，通孔12中张拉穿设有预应力筋30，预应力筋30的下端部锚固在承台20上，预应力筋30的上端部锚固在立柱10的上端面，预应力筋30与通孔12的内侧壁为间隙配合。Fig. 1 is a plan layout of a prefabricated assembled pier with unbonded prestressed tendons in the middle of this embodiment, and Fig. 2 is a cross-sectional view of A-A in Fig. 1 . As shown in Figures 1 and 2, this specific embodiment proposes a prefabricated assembled bridge pier with unbonded prestressed tendons in the middle, including a
示例性的，本实施例预应力筋30为预应力螺纹钢筋，预应力筋30下端部螺设锚固在承台20上，预应力筋30上端部通过螺母40螺固张拉预应力筋，预应力筋30处于通孔12的内部与通孔12的内侧壁保持间隙配合，通孔12内不填充混凝土等物质，预应力筋30与通孔12内侧壁保持一定间隙，无粘结状态，其具体间隙大小根据实际需要进行设置，此处不再赘述。Exemplarily, the
当然了，在其他具体实施例中，所述预应力筋还可以采用预应力钢丝束等其他外购件，从此不再赘述。Of course, in other specific embodiments, the prestressed tendons can also use other purchased parts such as prestressed steel wire bundles, and will not be repeated hereafter.
示例性的，将本实施例的中置无粘结预应力筋预制拼装桥墩具体应用在高烈度地震区，通过在立柱10的中轴线位置开设通孔12，以及在通孔12内无粘结地穿设预应力筋30，大大的提高了桥墩的抗震性能，以及在地震后的自复位能力，且能有效的对立柱10上的各拼装接缝的密实度开裂进行控制和有利于提高地震下的抗剪力作用。Exemplarily, the prefabricated prefabricated pier with unbonded prestressed tendons in this embodiment is specifically applied in a high-intensity earthquake area, by opening a through
以上详细描述了本实用新型的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本实用新型的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本实用新型的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320823886.0U CN203603039U (en) | 2013-12-13 | 2013-12-13 | Prefabricated assembled pier with built-in unbonded prestressed tendon |
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| CN201320823886.0U CN203603039U (en) | 2013-12-13 | 2013-12-13 | Prefabricated assembled pier with built-in unbonded prestressed tendon |
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| CN203603039U true CN203603039U (en) | 2014-05-21 |
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Cited By (8)
| 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 |
| CN110359363A (en) * | 2019-07-26 | 2019-10-22 | 山东建筑大学 | A partially bonded prestressed assembly type self-resetting bridge pier column node and method |
| 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 |
| 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 |
| CN114370020A (en) * | 2022-01-25 | 2022-04-19 | 湘潭大学 | Self-resetting anti-collision guardrail and installation method thereof |
-
2013
- 2013-12-13 CN CN201320823886.0U patent/CN203603039U/en not_active Expired - Fee Related
Cited By (11)
| 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 |
| US11427975B2 (en) | 2018-02-05 | 2022-08-30 | Hengqin Gonge Technology Co., Ltd. | Precast segmental pier reinforced with both conventional steel bars and high-strength steel bars |
| 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 | A partially bonded prestressed assembly type self-resetting bridge pier column node and method |
| 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 |
| CN114370020A (en) * | 2022-01-25 | 2022-04-19 | 湘潭大学 | Self-resetting anti-collision guardrail and installation method thereof |
| CN114370020B (en) * | 2022-01-25 | 2024-03-08 | 湘潭大学 | Self-resetting crash barrier and installation method thereof |
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Granted publication date: 20140521 |