CN207176514U - A kind of bridge pier assembly device - Google Patents
A kind of bridge pier assembly device Download PDFInfo
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Abstract
本实用新型提供的桥墩拼装装置，其桥墩由各桥墩预制段拼接而成，方便现场作业，能够提高作业效率，有效缓解了作业时对城市交通环境影响；上一节桥墩预制段通过通孔与所述空心钢管与下一节桥墩预制段连接，最底端桥墩预制段的通孔通过空心钢管与承台连接，通过空心钢管嵌入通孔中、浇筑自密实混凝土等措施约束了相邻桥墩预制段之间、最底端桥墩预制段与承台之间的水平位移，有效提高了桥墩在拼接过程中及拼接完成后的抗剪能力，解决了当桥墩遭遇较大的侧向力时因为抗剪能力不足，而使桥墩拼接装置破坏而导致的安全事故问题，提高了桥墩的抗震性能。
The bridge pier assembly device provided by the utility model, the bridge pier is spliced by various pier prefabricated sections, which is convenient for on-site operation, can improve the operation efficiency, and effectively alleviates the impact on the urban traffic environment during operation; The hollow steel pipe is connected to the prefabricated section of the next pier, and the through hole of the prefabricated section of the pier at the bottom is connected to the cap through the hollow steel pipe, and measures such as embedding the hollow steel pipe into the through hole and pouring self-compacting concrete constrain the prefabricated pier of the adjacent pier. The horizontal displacement between the sections and between the prefabricated section of the bottom pier and the bearing platform effectively improves the shear resistance of the pier during and after splicing, and solves the Insufficient shear capacity leads to safety accidents caused by damage to the splicing device of the bridge pier, which improves the seismic performance of the bridge pier.
Description
技术领域technical field
本实用新型涉及桥梁工程的建设技术领域，尤其涉及一种桥墩拼装装置。The utility model relates to the technical field of bridge engineering construction, in particular to a bridge pier assembly device.
背景技术Background technique
传统技术中，我国公路桥梁圆柱形桥墩大多采用现场浇筑的方法，这种传统的施工工艺主要缺点在于：1、施工周期过长，施工效率低；2、传统施工质量不利于控制，如在城市核心区建设桥梁，桥墩的施工就包括了绑扎钢筋、安装模板、浇筑混凝土、拆模、养护混凝土等等，施工质量受工人整体素质以及环境等等因素的影响；3、对城市交通环境影响较大，容易造成拥堵。In the traditional technology, most of the cylindrical piers of highway bridges in my country adopt the method of on-site pouring. The main disadvantages of this traditional construction technology are: 1. The construction period is too long and the construction efficiency is low; 2. The traditional construction quality is not conducive to control, such as in cities. For the construction of bridges in the core area, the construction of bridge piers includes binding steel bars, installing formwork, pouring concrete, removing formwork, and curing concrete, etc. The construction quality is affected by factors such as the overall quality of workers and the environment; 3. The impact on the urban traffic environment is relatively large Big, easy to cause congestion.
实用新型内容Utility model content
本实用新型所要解决的技术问题是：本实用新型提供一种抗剪能力高、方便现场作业的桥墩拼装装置。The technical problem to be solved by the utility model is: the utility model provides a pier assembly device with high shear resistance and convenient on-site operation.
为了解决上述技术问题，本实用新型提供了一种桥墩拼装装置，包括承台，还包括桥墩和空心钢管；In order to solve the above technical problems, the utility model provides a bridge pier assembly device, which includes a cap, and also includes a bridge pier and a hollow steel pipe;
所述桥墩由各桥墩预制段拼接而成，每一节桥墩预制段下表面均设有通孔，除最顶端桥墩预制段外的每一节桥墩预制段上表面均设有空心钢管，所述空心钢管具有第一通孔，桥墩预制段的通孔与空心钢管的第一通孔连通；上一节桥墩预制段的通孔与设置在下一节桥墩预制段上的空心钢管的第一通孔连通；通过空心钢管与通孔连接，以实现相邻桥墩预制段的拼接；The bridge piers are spliced by various pier prefabricated sections, and the lower surface of each pier prefabricated section is provided with through holes, and the upper surface of each pier prefabricated section except the topmost pier prefabricated section is provided with hollow steel pipes. The hollow steel pipe has a first through hole, and the through hole of the prefabricated section of the pier is connected with the first through hole of the hollow steel pipe; Connected; through hollow steel pipes and through-holes connected to achieve the splicing of adjacent pier prefabricated sections;
所述承台上表面设有空心钢管，最底端桥墩预制段的通孔通过空心钢管与承台连通；The upper surface of the cap is provided with a hollow steel pipe, and the through hole of the prefabricated section of the pier at the bottom is connected with the cap through the hollow steel pipe;
相邻预制段连接处浇筑有自密实混凝土，浇筑完成后自密混凝土充满通孔及空心钢管的第一通孔；承台与最底端桥墩预制段连接处浇筑有自密实混凝土，浇筑完成后自密混凝土充满通孔及空心钢管的第一通孔。Self-compacting concrete is poured at the junction of adjacent prefabricated sections. After the pouring is completed, the self-compacting concrete fills the through hole and the first through hole of the hollow steel pipe; Self-compacting concrete fills the through hole and the first through hole of the hollow steel pipe.
进一步的，所述的一种桥墩拼装装置，还包括金属波纹管、预应力筋连接器、预应力钢筋、设置在桥墩顶端的张拉端锚具和设置承台内的固定端锚具；Further, the described bridge pier assembly device also includes metal bellows, prestressed tendon connectors, prestressed steel bars, tension end anchors arranged on the top of the bridge pier, and fixed end anchors arranged in the cap;
每一节桥墩预制段和承台均预埋金属波纹管，所述金属波纹管具有预应力孔道，所述预应力孔道从桥墩顶到承台垂直连通；Each pier prefabricated section and cap are pre-embedded with metal bellows, and the metal bellows has a prestressed channel, and the prestressed channel is vertically connected from the top of the pier to the cap;
所述每一节桥墩预制段在预应力孔道的底端均设有第一安装槽，最顶端桥墩预制段在预应力孔道的顶端设有第二安装槽，所述承台在预应力孔道底部设有第三安装槽，除最底端桥墩预制段外的每一节桥墩预制段的第一安装槽上均设有预应力筋连接器，所述第二安装槽上设有张拉端锚具，所述第三安装槽上设有固定端锚具；Each pier prefabricated section is provided with a first installation groove at the bottom of the prestressed tunnel, and the topmost pier prefabricated section is provided with a second installation groove at the top of the prestressed tunnel, and the cap is at the bottom of the prestressed tunnel There is a third installation groove, the first installation groove of each pier prefabricated section except the bottommost pier prefabricated section is provided with a prestressed tendon connector, and the second installation groove is provided with a tension end anchor Tool, the third installation groove is provided with a fixed end anchor;
最顶端桥墩预制段的预应力孔道上设有第一预应力钢筋，所述第一预应力钢筋上端与张拉端锚具连接，下端与最顶端桥墩预制段上的预应力筋连接器连接；The prestressed channel of the prefabricated section of the top pier is provided with a first prestressed steel bar, the upper end of the first prestressed steel bar is connected with the tension end anchor, and the lower end is connected with the prestressed tendon connector on the prefabricated section of the top pier;
除最顶端桥墩预制段和最底端桥墩预制段外的每一节桥墩预制段预应力孔道上设有第二预应力钢筋，所述第二预应力钢筋下端与本节桥墩预制段上的预应力筋连接器连接，上端与本节桥墩预制段上方相邻的桥墩预制段中的预应力筋连接器连接；Except for the prefabricated section of the top pier and the prefabricated section of the pier at the bottom, the prestressed channel of each section of the pier prefabricated section is provided with a second prestressed steel bar, and the lower end of the second prestressed steel bar is connected with the prestressed steel bar on the precast section of the pier section. The stress tendon connector is connected, and the upper end is connected with the prestress tendon connector in the adjacent pier prefabricated section above the pier prefabricated section in this section;
承台中的预应力孔道上设有第三预应力钢筋，所述第三预应力钢筋下端与固定端锚具连接，上端穿过最底端桥墩预制段与最底端桥墩预制段上方相邻的桥墩预制段中的预应力筋连接器连接。The prestressed channel in the cap is provided with a third prestressed steel bar, the lower end of the third prestressed steel bar is connected to the anchorage at the fixed end, and the upper end passes through the prefabricated section of the bottom pier and the adjacent section above the prefabricated section of the bottom pier. Prestressing tendon connector connections in prefabricated sections of piers.
进一步的，预应力钢筋与金属波纹管的缝隙间设有砂浆。Further, mortar is provided between the prestressed steel bars and the metal bellows.
进一步的，所述的一种桥墩拼装装置，还包括环绕桥墩设置在承台上的多根竖向钢筋；Further, the described bridge pier assembling device also includes a plurality of vertical steel bars arranged on the cap around the bridge pier;
在所述多根竖向钢筋与桥墩之间浇筑混凝土，形成二次承台。Concrete is poured between the plurality of vertical steel bars and the pier to form a secondary cap.
进一步的，所述通孔包括圆柱形的第二孔和与第二孔连接的圆台形的第三孔；Further, the through hole includes a cylindrical second hole and a truncated conical third hole connected to the second hole;
除最顶端桥墩预制段的每一节桥墩预制段的第二孔与空心钢管的第一通孔连通，第三孔与本节桥墩预制段下表面贯通；The second hole of each pier prefabricated section except the topmost pier prefabricated section is connected with the first through hole of the hollow steel pipe, and the third hole is connected with the lower surface of the pier prefabricated section of this section;
所述最顶端桥墩预制段的第二孔与最顶端桥墩预制段上表面贯通，第三孔与最顶端桥墩预制段下表面贯通；The second hole of the prefabricated section of the top pier is connected with the upper surface of the prefabricated section of the top pier, and the third hole is connected with the lower surface of the prefabricated section of the top pier;
上一节桥墩预制段通过第三孔与设置在下一节桥墩预制段上的空心钢管连接，以实现相邻桥墩预制段的连接；最底端桥墩预制段通过第三孔与承台上的空心钢管连接。The prefabricated section of the previous pier is connected to the hollow steel pipe on the prefabricated section of the next pier through the third hole to realize the connection of the prefabricated section of the adjacent pier; Steel pipe connection.
进一步的，每一节桥墩预制段的形状为圆柱形。Further, each pier prefabricated section is cylindrical in shape.
进一步的，所述承台上表面与最底端桥墩预制段的下表面通过环氧砂浆连接。Further, the upper surface of the cap is connected to the lower surface of the prefabricated section of the bottom pier by epoxy mortar.
进一步的，上一节桥墩预制段的下表面与下一节桥墩预制段的上表面通过环氧砂浆连接。Further, the lower surface of the prefabricated section of the previous pier is connected to the upper surface of the prefabricated section of the next pier through epoxy mortar.
本实用新型的有益效果为：The beneficial effects of the utility model are:
本实用新型提供的桥墩拼装装置，其桥墩由各桥墩预制段拼接而成，方便现场作业，能够提高作业效率，有效缓解了作业时对城市交通环境影响；上一节桥墩预制段通过通孔与所述空心钢管与下一节桥墩预制段连接，最底端桥墩预制段的通孔通过空心钢管与承台连接，通过空心钢管嵌入通孔中、浇筑自密实混凝土等措施约束了相邻桥墩预制段之间、最底端桥墩预制段与承台之间的水平位移，有效提高了桥墩在拼接过程中及拼接完成后的抗剪能力，解决了当桥墩遭遇较大的侧向力时因为抗剪能力不足，而使桥墩拼接装置破坏而导致的安全事故问题；预制段中心处留有通孔，节段拼装过程中依次由通孔处浇筑自密实混凝土，加强了各个桥墩预制段之间的连接，提高了桥墩的抗震性能。The bridge pier assembly device provided by the utility model, the bridge pier is spliced by various pier prefabricated sections, which is convenient for on-site operation, can improve the operation efficiency, and effectively alleviates the impact on the urban traffic environment during operation; The hollow steel pipe is connected to the prefabricated section of the next pier, and the through hole of the prefabricated section of the pier at the bottom is connected to the cap through the hollow steel pipe, and measures such as embedding the hollow steel pipe into the through hole and pouring self-compacting concrete constrain the prefabricated pier of the adjacent pier. The horizontal displacement between the sections and between the prefabricated section of the bottom pier and the bearing platform effectively improves the shear resistance of the pier during and after splicing, and solves the Insufficient shearing capacity leads to safety accidents caused by damage to the pier splicing device; there is a through hole in the center of the prefabricated section, and self-compacting concrete is poured from the through hole in sequence during the segment assembly process, which strengthens the connection between the prefabricated sections of each pier The connection improves the seismic performance of the bridge piers.
附图说明Description of drawings
图1为根据本实用新型实施例一种桥墩拼装装置的结构示意图；Fig. 1 is a schematic structural view of a pier assembly device according to an embodiment of the present invention;
图2为根据本实用新型实施例一种桥墩拼装装置的A-A剖示图；Fig. 2 is an A-A sectional view of a pier assembly device according to an embodiment of the present invention;
标号说明：Label description:
1、承台；2、桥墩；3、空心钢管；4、桥墩预制段；5、预应力筋连接器； 6、张拉端锚具；7、固定端锚具；8、第一预应力钢筋；9、第二预应力钢筋； 10、第三预应力钢筋；11、第二孔；12、第三孔；13、通孔；14、预应力孔道； 15、竖向钢筋；16、二次承台。1. Cap; 2. Bridge pier; 3. Hollow steel pipe; 4. Prefabricated section of bridge pier; 5. Prestressed tendon connector; 6. Tension end anchorage; 7. Fixed end anchorage; ;9, the second prestressed reinforcement; 10, the third prestressed reinforcement; 11, the second hole; 12, the third hole; 13, the through hole; 14, the prestressed channel; 15, the vertical reinforcement; 16, the secondary Plinth.
具体实施方式Detailed ways
为详细说明本实用新型的技术内容、所实现目的及效果，以下结合实施方式并配合附图详予说明。In order to describe the technical content, the achieved purpose and the effect of the present utility model in detail, the following will be described in detail in combination with the embodiments and accompanying drawings.
请参照图1至图2，本实用新型提供了一种桥墩拼装装置，包括承台，还包括桥墩和空心钢管；Please refer to Fig. 1 to Fig. 2, the utility model provides a bridge pier assembling device, which includes a cap, and also includes a bridge pier and a hollow steel pipe;
所述桥墩由各桥墩预制段拼接而成，每一节桥墩预制段下表面均设有通孔，除最顶端桥墩预制段外的每一节桥墩预制段上表面均设有空心钢管，所述空心钢管具有第一通孔，桥墩预制段的通孔与空心钢管的第一通孔连通，上一节桥墩预制段的通孔与设置在下一节桥墩预制段上的空心钢管的第一通孔连通；通过空心钢管与通孔连接，以实现相邻桥墩预制段的拼接；The bridge piers are spliced by various pier prefabricated sections, and the lower surface of each pier prefabricated section is provided with through holes, and the upper surface of each pier prefabricated section except the topmost pier prefabricated section is provided with hollow steel pipes. The hollow steel pipe has a first through hole, the through hole of the prefabricated section of the pier is connected with the first through hole of the hollow steel pipe, the through hole of the prefabricated section of the previous pier is connected with the first through hole of the hollow steel pipe arranged on the prefabricated section of the next pier Connected; through hollow steel pipes and through-holes connected to achieve the splicing of adjacent pier prefabricated sections;
所述承台上表面设有空心钢管，最底端桥墩预制段的通孔通过空心钢管与承台连通；The upper surface of the cap is provided with a hollow steel pipe, and the through hole of the prefabricated section of the pier at the bottom is connected with the cap through the hollow steel pipe;
相邻预制段连接处浇筑有自密实混凝土，浇筑完成后自密混凝土充满通孔及空心钢管的第一通孔；承台与最底端桥墩预制段连接处浇筑有自密实混凝土，浇筑完成后自密混凝土充满通孔及空心钢管的第一通孔。Self-compacting concrete is poured at the junction of adjacent prefabricated sections. After the pouring is completed, the self-compacting concrete fills the through hole and the first through hole of the hollow steel pipe; Self-compacting concrete fills the through hole and the first through hole of the hollow steel pipe.
从上述描述可知，本实用新型提供的桥墩拼装装置，其桥墩由各桥墩预制段拼接而成，方便现场作业，能够提高作业效率，有效缓解了作业时对城市交通环境影响；上一节桥墩预制段的通孔通过所述空心钢管与下一节桥墩预制段连通，最底端桥墩预制段的通孔通过空心钢管与承台连接，通过钢管帽嵌入通孔中及后浇混凝土，约束了不同桥墩预制段之间、第一节桥墩预制段与承台之间的水平位移，有效提高了桥墩拼接装置的抗剪能力，解决了当桥墩遭遇较大的侧向力时因为抗剪能力不足，而使桥墩拼接装置破坏导致的安全事故问题。It can be seen from the above description that the pier assembly device provided by the utility model is composed of prefabricated pier sections, which is convenient for on-site operation, can improve operation efficiency, and effectively alleviates the impact on the urban traffic environment during operation; the prefabricated pier in the previous section The through hole of the section is connected to the prefabricated section of the next pier through the hollow steel pipe, and the through hole of the prefabricated section of the pier at the bottom is connected to the cap through the hollow steel pipe, and the steel pipe cap is embedded in the through hole and the post-cast concrete constrains different The horizontal displacement between the prefabricated sections of the pier and between the prefabricated section of the first section of the pier and the cap platform effectively improves the shear resistance of the splicing device of the pier, and solves the problem of insufficient shear resistance when the pier encounters a large lateral force. And the problem of safety accident caused by the destruction of the pier splicing device.
进一步的，所述的一种桥墩拼装装置，还包括金属波纹管、预应力筋连接器、预应力钢筋、设置在桥墩顶端的张拉端锚具和设置承台内的固定端锚具；Further, the described bridge pier assembly device also includes metal bellows, prestressed tendon connectors, prestressed steel bars, tension end anchors arranged on the top of the bridge pier, and fixed end anchors arranged in the cap;
每一节桥墩预制段和承台均预埋金属波纹管，所述金属波纹管具有预应力孔道，所述预应力孔道从桥墩顶到承台垂直连通；Each pier prefabricated section and cap are pre-embedded with metal bellows, and the metal bellows has a prestressed channel, and the prestressed channel is vertically connected from the top of the pier to the cap;
所述每一节桥墩预制段在预应力孔道的底端均设有第一安装槽，最顶端桥墩预制段在预应力孔道的顶端设有第二安装槽，所述承台在预应力孔道底部设有第三安装槽，除最底端桥墩预制段外的每一节桥墩预制段的第一安装槽上均设有预应力筋连接器，所述第二安装槽上设有张拉端锚具，所述第三安装槽上设有固定端锚具；Each pier prefabricated section is provided with a first installation groove at the bottom of the prestressed tunnel, and the topmost pier prefabricated section is provided with a second installation groove at the top of the prestressed tunnel, and the cap is at the bottom of the prestressed tunnel There is a third installation groove, the first installation groove of each pier prefabricated section except the bottommost pier prefabricated section is provided with a prestressed tendon connector, and the second installation groove is provided with a tension end anchor Tool, the third installation groove is provided with a fixed end anchor;
最顶端桥墩预制段的预应力孔道上设有第一预应力钢筋，所述第一预应力钢筋上端与张拉端锚具连接，下端与最顶端桥墩预制段上的预应力筋连接器连接；The prestressed channel of the prefabricated section of the top pier is provided with a first prestressed steel bar, the upper end of the first prestressed steel bar is connected with the tension end anchor, and the lower end is connected with the prestressed tendon connector on the prefabricated section of the top pier;
除最顶端桥墩预制段和最底端桥墩预制段外的每一节桥墩预制段预应力孔道上设有第二预应力钢筋，所述第二预应力钢筋下端与本节桥墩预制段上的预应力筋连接器连接，上端与本节桥墩预制段上方相邻的桥墩预制段中的预应力筋连接器连接；Except for the prefabricated section of the top pier and the prefabricated section of the pier at the bottom, the prestressed channel of each section of the pier prefabricated section is provided with a second prestressed steel bar, and the lower end of the second prestressed steel bar is connected with the prestressed steel bar on the precast section of the pier section. The stress tendon connector is connected, and the upper end is connected with the prestress tendon connector in the adjacent pier prefabricated section above the pier prefabricated section in this section;
承台中的预应力孔道上设有第三预应力钢筋，所述第三预应力钢筋下端与固定端锚具连接，上端穿过最底端桥墩预制段与最底端桥墩预制段上方相邻的桥墩预制段中的预应力筋连接器连接。The prestressed channel in the cap is provided with a third prestressed steel bar, the lower end of the third prestressed steel bar is connected to the anchorage at the fixed end, and the upper end passes through the prefabricated section of the bottom pier and the adjacent section above the prefabricated section of the bottom pier. Prestressing tendon connector connections in prefabricated sections of piers.
从上述描述可知，本实用新型通过上述结构能够实现预应力钢筋的分段张拉，相对于现有技术中在整个桥墩安装完成之后再对预应力钢筋进行张拉锚固，本实用新型提高了桥墩的抗剪能力，避免在海上安装作业或风力较大环境下，由于侧向力较大，而在桥墩预制段安装过程中发生安全事故的问题。It can be seen from the above description that the utility model can realize the segmental stretching of the prestressed steel bar through the above structure. Compared with the prior art, the prestressed steel bar is tensioned and anchored after the installation of the entire bridge pier is completed. The utility model improves the bridge pier Excellent shear resistance, to avoid safety accidents during the installation of pier prefabricated sections due to large lateral forces during offshore installation operations or in environments with strong winds.
进一步的，所述预应力钢筋与金属波纹管的缝隙间设有砂浆。Further, mortar is provided in the gap between the prestressed steel bar and the metal bellows.
从上述描述可知，通过上述结构，提高了桥墩连接结构的稳定性。It can be seen from the above description that the stability of the bridge pier connection structure is improved through the above structure.
进一步的，所述的一种桥墩拼装装置，还包括环绕桥墩设置在承台上的多根竖向钢筋；Further, the described bridge pier assembling device also includes a plurality of vertical steel bars arranged on the cap around the bridge pier;
在所述多根竖向钢筋与桥墩之间浇筑混凝土，形成二次承台。Concrete is poured between the plurality of vertical steel bars and the pier to form a secondary cap.
在完成最底端桥墩预制段的安装后进行二次浇筑，形成二次承台。After the installation of the prefabricated section of the bottom pier is completed, the secondary pouring is carried out to form the secondary cap.
从上述描述可知，通过上述结构，提高了桥墩与承台连接处的抗剪能力，保证了桥墩与承台连接的稳定性与可靠性。It can be seen from the above description that the above structure improves the shear resistance of the connection between the pier and the cap, and ensures the stability and reliability of the connection between the pier and the cap.
进一步的，所述通孔包括圆柱形的第二孔和与第二孔连接的圆台形的第三孔；Further, the through hole includes a cylindrical second hole and a truncated conical third hole connected to the second hole;
除最顶端桥墩预制段的每一节桥墩预制段的第二孔与空心钢管的第一通孔连通，第三孔与本节桥墩预制段下表面贯通；The second hole of each pier prefabricated section except the topmost pier prefabricated section is connected with the first through hole of the hollow steel pipe, and the third hole is connected with the lower surface of the pier prefabricated section of this section;
所述最顶端桥墩预制段的第二孔与最顶端桥墩预制段上表面贯通，第三孔与最顶端桥墩预制段下表面贯通；The second hole of the prefabricated section of the top pier is connected with the upper surface of the prefabricated section of the top pier, and the third hole is connected with the lower surface of the prefabricated section of the top pier;
上一节桥墩预制段通过第三孔与设置在下一节桥墩预制段上的空心钢管连接，以实现相邻桥墩预制段的连接；最底端桥墩预制段通过第三孔与承台上的空心钢管连接。The prefabricated section of the previous pier is connected to the hollow steel pipe on the prefabricated section of the next pier through the third hole to realize the connection of the prefabricated section of the adjacent pier; Steel pipe connection.
从上述描述可知，通过上述结构，提高了桥墩与承台连接处的抗剪能力，并且提高了相邻两节桥墩预制段连接处的抗剪能力。It can be known from the above description that the above structure improves the shear resistance of the joint between the bridge pier and the cap, and improves the shear resistance of the joint of the prefabricated sections of two adjacent bridge piers.
进一步的，每一节桥墩预制段的形状为圆柱形、具体长度可根据实际情况进行设计。Further, the shape of each prefabricated pier section is cylindrical, and the specific length can be designed according to the actual situation.
进一步的，所述承台上表面与最底端桥墩预制段的下表面通过环氧砂浆连接。Further, the upper surface of the cap is connected to the lower surface of the prefabricated section of the bottom pier by epoxy mortar.
从上述描述可知，通过上述连接方式能够提高连接的密封性，同时避免了压浆时的溢出。It can be seen from the above description that the above connection method can improve the sealing performance of the connection and avoid overflow during grouting.
进一步的，上一节桥墩预制段的下表面与下一节桥墩预制段的上表面通过环氧砂浆连接。Further, the lower surface of the prefabricated section of the previous pier is connected to the upper surface of the prefabricated section of the next pier through epoxy mortar.
从上述描述可知，通过上述结构，通过上述连接方式能够提高连接的密封性，同时避免了压浆时的溢出。It can be seen from the above description that, through the above structure, the above connection method can improve the sealing performance of the connection, and at the same time avoid overflow during grouting.
上述的桥墩拼装装置的安装顺序如下：The installation sequence of the above pier assembly device is as follows:
一、绑扎承台钢筋包括多根竖向钢筋(二级承台暂不浇筑)，注意预埋波纹管及承台处空心钢管，同时预应力钢筋一端固定在承台内预设的固定端锚具中，另一端从承台中穿出(穿出长度应大于第一节桥墩预制段长度并预留张拉工作长度)，浇筑承台混凝土；1. The steel bars for binding caps include multiple vertical steel bars (the secondary caps will not be poured temporarily), pay attention to the pre-embedded bellows and hollow steel pipes at the caps, and at the same time, one end of the prestressed steel bars is fixed to the preset fixed end anchor in the caps The other end is pierced through the cap (the length of the piercing should be greater than the length of the prefabricated section of the first pier and the length of the tension work is reserved), and the concrete of the cap is poured;
二、于承台上表面涂抹环氧砂浆，吊装最底端桥墩预制段，使预应力钢筋穿过预应力孔道，同时将空心钢管嵌入预制段通孔中，张拉锚固预应力钢筋后，于空心钢管处浇筑自密实混凝土，将通孔注满至空心钢管顶端，于预应力筋连接器处切除张拉工作段钢筋，然后对波纹管进行压浆；2. Apply epoxy mortar on the upper surface of the cap, hoist the prefabricated section of the bottom pier, make the prestressed steel bar pass through the prestressed tunnel, and at the same time insert the hollow steel pipe into the through hole of the prefabricated section, tension and anchor the prestressed steel bar. Pouring self-compacting concrete at the hollow steel pipe, filling the through hole to the top of the hollow steel pipe, cutting off the steel bars in the tensioning section at the prestressed tendon connector, and then grouting the bellows;
三、浇筑二级承台混凝土，对第一节墩柱进行固定；3. Pour the concrete of the second stage cap, and fix the first section of the pier column;
四、于桥墩顶端预应力钢筋张拉锚固处，用预应力筋连接器接长预应力钢筋(长度需大于桥墩预制段长度并预留张拉工作长度)，在最底端桥墩预制段上表面涂抹环氧砂浆，吊装第二节预制桥墩段，使预应力钢筋穿过预应力孔道，同时空心钢管嵌入预制段通孔中，张拉锚固预应力钢筋，于空心钢管处浇筑自密实混凝土，将通孔注满至钢管帽顶端，于预应力预应力筋连接器处切除张拉工作段钢筋，然后对波纹管压浆；4. At the tension anchorage of the prestressed steel bar at the top of the pier, use the prestressed tendon connector to connect the prestressed steel bar (the length must be greater than the length of the prefabricated section of the pier and reserve the working length of the tension), and on the upper surface of the prefabricated section of the bottom pier Apply epoxy mortar, hoist the second prefabricated pier section, make the prestressed steel bar pass through the prestressed tunnel, and at the same time insert the hollow steel pipe into the through hole of the prefabricated section, tension and anchor the prestressed steel bar, and pour self-compacting concrete at the hollow steel pipe, Fill the through hole to the top of the steel pipe cap, cut off the steel bar in the tensioning section at the prestressed prestressed tendon connector, and then grout the bellows;
五、重复第四步骤至预定标高；5. Repeat the fourth step to the predetermined elevation;
六、于桥墩顶端预应力钢筋张拉锚固处用预应力筋连接器接长预应力钢筋 (长度需大于桥墩预制段长度并预留张拉工作长度)，在最顶端桥墩预制段的下一节桥墩预制段上表面涂抹环氧砂浆，吊装最顶端桥墩预制段使预应力钢筋穿过预应力孔道，同时空心钢管嵌入通孔中，张拉锚固预应力钢筋。于通孔处浇筑自密实混凝土，使其充满通孔，压浆、切除张拉工作段钢筋，于桥墩顶端张拉锚固端处绑扎钢筋，浇筑封锚混凝土。6. Use the prestressed tendon connector to lengthen the prestressed steel bar at the tension anchorage of the prestressed steel bar at the top of the bridge pier (the length must be greater than the length of the prefabricated section of the bridge pier and reserve the working length of the tension), in the next section of the prefabricated section of the top pier Epoxy mortar is applied on the upper surface of the prefabricated section of the bridge pier, and the prefabricated section of the top pier is hoisted so that the prestressed steel bars pass through the prestressed tunnel, and at the same time, the hollow steel pipe is embedded in the through hole to tension and anchor the prestressed steel bar. Pouring self-compacting concrete at the through-hole to fill the through-hole, grouting, cutting off the steel bars in the tension section, tying the steel bars at the tension anchor end at the top of the pier, and pouring anchor concrete.
如此即实现了分段张拉，相对于现有技术中在整个桥墩安装完成之后再对预应力钢筋进行张拉锚固，本实用新型提高了桥墩了抗剪能力，避免在海上安装作业或风力较大环境下，由于侧向力较大，而在桥墩预制段安装过程中发生安全事故的问题。In this way, segmental tensioning is realized. Compared with the prior art where the prestressed steel bars are tensioned and anchored after the installation of the entire bridge pier is completed, the utility model improves the shear resistance of the bridge pier and avoids installation operations at sea or strong winds. In the large environment, due to the large lateral force, safety accidents occurred during the installation of the prefabricated section of the pier.
本实用新型采用桥墩预制段现场拼装的形式，去除了现场浇筑混凝土的工序，缩短了工期。传统的施工工艺要经过绑扎钢筋，安置模板、浇筑混凝土、拆模、养护混凝土等施工工序，施工周期过长同时受外界环境、人员素质等等因素的影响较大。而本实用新型中采用的桥墩拼装装置可以在工厂中提前预制，从管理上可以统一集中按照严格的标准来执行，更有利于提高工程的质量。The utility model adopts the form of on-site assembly of the prefabricated section of the pier, eliminates the process of pouring concrete on site, and shortens the construction period. The traditional construction process has to go through construction procedures such as binding steel bars, placing formwork, pouring concrete, removing formwork, and curing concrete. The construction period is too long and is greatly affected by factors such as the external environment and the quality of personnel. However, the bridge pier assembling device adopted in the utility model can be prefabricated in advance in the factory, and can be uniformly and centrally implemented according to strict standards in management, which is more conducive to improving the quality of the project.
请参照图1至图2，本实用新型的实施例一为：Please refer to Fig. 1 to Fig. 2, embodiment one of the present utility model is:
本实用新型提供了一种桥墩拼装装置，包括承台1，还包括桥墩2和空心钢管3；The utility model provides a bridge pier assembling device, which includes a bearing platform 1, and also includes a bridge pier 2 and a hollow steel pipe 3;
所述桥墩2由各桥墩预制段4拼接而成，每一节桥墩预制段4下表面均设有通孔13，除最顶端桥墩预制段4外的每一节桥墩预制段4上表面均设有空心钢管3，所述空心钢管3具有第一通孔，桥墩预制段4的通孔13与空心钢管3 的第一通孔连通，上一节桥墩预制段4的通孔13与设置在下一节桥墩预制段4 上的空心钢管3的第一通孔连通；通过空心钢管3与通孔13连接，以实现相邻桥墩预制段4的拼接；The pier 2 is spliced by each pier prefabricated section 4, and the lower surface of each pier prefabricated section 4 is provided with through holes 13, and the upper surface of each pier prefabricated section 4 except the top pier prefabricated section 4 is provided with Hollow steel pipe 3 is arranged, and described hollow steel pipe 3 has the first through hole, and the through hole 13 of bridge pier prefabricated section 4 communicates with the first through hole of hollow steel pipe 3, and the through hole 13 of last joint pier prefabricated section 4 is arranged on the next one. The first through hole of the hollow steel pipe 3 on the pier prefabricated section 4 is connected; the hollow steel pipe 3 is connected with the through hole 13 to realize the splicing of the adjacent pier prefabricated section 4;
所述承台1上表面设有空心钢管3，最底端桥墩预制段4的通孔13通过空心钢管3与承台1连通；The upper surface of the cap 1 is provided with a hollow steel pipe 3, and the through hole 13 of the prefabricated pier section 4 at the bottom end communicates with the cap 1 through the hollow steel pipe 3;
相邻预制段连接处浇筑有自密实混凝土，浇筑完成后自密混凝土充满通孔 13及空心钢管3的第一通孔；承台1与最底端桥墩预制段4连接处浇筑有自密实混凝土，浇筑完成后自密混凝土充满通孔13及空心钢管3的第一通孔。Self-compacting concrete is poured at the junction of adjacent prefabricated sections. After the pouring is completed, the self-compacting concrete fills the through hole 13 and the first through hole of the hollow steel pipe 3; self-compacting concrete is poured at the junction of the cap 1 and the precast section 4 of the bottom pier , after the pouring is completed, the first through hole of the through hole 13 and the hollow steel pipe 3 is filled with self-closed concrete.
本实用新型的实施例二为：Embodiment two of the utility model is:
本实用新型的实施例二与实施例一的区别在于，所述的一种桥墩拼装装置，还包括金属波纹管、预应力筋连接器5、预应力钢筋、设置在桥墩顶端的张拉端锚具6、设置承台1内的固定端锚具7和环绕桥墩2设置在承台1上的多根竖向钢筋15；每一节桥墩预制段4和承台1均预埋金属波纹管，所述金属波纹管具有预应力孔道14，所述预应力孔道14从桥墩2顶到承台1垂直连通；所述每一节桥墩预制段4在预应力孔道14的底端均设有第一安装槽，最顶端桥墩预制段 4在预应力孔道14的顶端设有第二安装槽，所述承台1在预应力孔道14底部设有第三安装槽，除最底端桥墩预制段4外的每一节桥墩预制段4的第一安装槽上均设有预应力筋连接器5，所述第二安装槽上设有张拉端锚具6，所述第三安装槽上设有固定端锚具7；最顶端桥墩预制段4的预应力孔道14上设有第一预应力钢筋8，所述第一预应力钢筋8上端与张拉端锚具6连接，下端与最顶端桥墩预制段4上的预应力筋连接器5连接；除最顶端桥墩预制段4和最底端桥墩预制段4外的每一节桥墩预制段4预应力孔道14上设有第二预应力钢筋9，所述第二预应力钢筋9下端与本节桥墩预制段4上的预应力筋连接器5连接，上端与本节桥墩预制段4上方相邻的桥墩预制段4中的预应力筋连接器5连接；承台1中的预应力孔道14上设有第三预应力钢筋10，所述第三预应力钢筋10 下端与固定端锚具7连接，上端穿过最底端桥墩预制段4与最底端桥墩预制段4 上方相邻的桥墩预制段4中的预应力筋连接器5连接；The difference between the second embodiment of the utility model and the first embodiment is that the pier assembling device also includes a metal bellows, a prestressed tendon connector 5, a prestressed steel bar, and a tension end anchor arranged at the top of the pier. Tool 6. Set the fixed end anchorage 7 in the cap 1 and a plurality of vertical steel bars 15 arranged on the cap 1 around the pier 2; each pier prefabricated section 4 and cap 1 are pre-embedded metal bellows, The metal bellows has a prestressed channel 14, and the prestressed channel 14 is vertically connected from the top of the pier 2 to the cap 1; each section of the pier precast section 4 is provided with a first Installing slots, the prefabricated section 4 of the most top pier is provided with a second installation slot at the top of the prestressed tunnel 14, and the cap 1 is provided with a third installation slot at the bottom of the prestressed tunnel 14, except for the prefabricated section 4 of the bottom pier The first installation groove of each pier prefabricated section 4 is provided with a prestressed tendon connector 5, the second installation groove is provided with a tension end anchor 6, and the third installation groove is provided with a fixed End anchorage 7; the prestressed channel 14 of the prefabricated section 4 of the top pier is provided with a first prestressed steel bar 8, the upper end of the first prestressed steel bar 8 is connected with the tension end anchorage 6, and the lower end is prefabricated with the topmost pier The prestressed tendon connector 5 on the section 4 is connected; except the prefabricated section 4 of the top pier and the prefabricated section 4 of the pier at the bottom, each pier prefabricated section 4 prestressed channel 14 is provided with a second prestressed steel bar 9, The lower end of the second prestressed reinforcement 9 is connected to the prestressed tendon connector 5 on the pier prefabricated section 4 of this section, and the upper end is connected to the prestressed tendon connector 5 in the pier prefabricated section 4 adjacent to the pier prefabricated section 4 above this section connection; the prestressed channel 14 in the cap 1 is provided with a third prestressed steel bar 10, the lower end of the third prestressed steel bar 10 is connected with the anchorage 7 at the fixed end, and the upper end passes through the prefabricated section 4 of the pier at the bottom end and connects with the bottom end of the pier The prestressed tendon connector 5 in the adjacent pier prefabricated section 4 above the bottom pier prefabricated section 4 is connected;
所述预应力钢筋与金属波纹管的缝隙间设有砂浆；在所述多根竖向钢筋15 与桥墩2之间浇筑混凝土，形成二次承台16；Mortar is provided between the gap between the prestressed steel bar and the metal bellows; concrete is poured between the multiple vertical steel bars 15 and the pier 2 to form a secondary cap 16;
所述通孔13包括圆柱形的第二孔11和与第二孔11连接的圆台形的第三孔 12；除最顶端桥墩预制段4的每一节桥墩预制段4的第二孔11与空心钢管3的第一通孔连通，第三孔12与本节桥墩预制段4下表面贯通；所述最顶端桥墩预制段4的第二孔11与最顶端桥墩预制段4上表面贯通，第三孔12与最顶端桥墩预制段4下表面贯通；上一节桥墩预制段4通过第三孔12与设置在下一节桥墩预制段4上的空心钢管3连接，以实现相邻桥墩预制段4的连接；最底端桥墩预制段4通过第三孔13与承台1上的空心钢管3连接；Described through hole 13 comprises the second cylindrical hole 11 and the 3rd hole 12 of conical shape that is connected with the second hole 11; The first through hole of the hollow steel pipe 3 is connected, and the third hole 12 is connected with the lower surface of the pier prefabricated section 4 of this section; the second hole 11 of the topmost pier prefabricated section 4 is connected with the upper surface of the topmost pier prefabricated section 4. The three holes 12 are connected with the lower surface of the prefabricated section 4 of the top pier; the prefabricated section 4 of the previous pier is connected with the hollow steel pipe 3 arranged on the prefabricated section 4 of the next pier through the third hole 12, so as to realize the prefabricated section 4 of the adjacent pier connection; the prefabricated section 4 of the pier at the bottom is connected with the hollow steel pipe 3 on the cap 1 through the third hole 13;
每一节桥墩预制段4的形状为圆柱形；所述承台1上表面与最底端桥墩预制段4的下表面通过环氧砂浆连接；上一节桥墩预制段4的下表面与下一节桥墩预制段4的上表面通过环氧砂浆连接。The shape of each pier prefabricated section 4 is cylindrical; the upper surface of the cap 1 and the lower surface of the bottommost pier prefabricated section 4 are connected by epoxy mortar; the lower surface of the previous pier prefabricated section 4 is connected to the next The upper surface of the prefabricated section 4 of the pier is connected by epoxy mortar.
综上所述，本实用新型提供的桥墩拼装装置，其桥墩由各桥墩预制段拼接而成，方便现场作业，能够提高作业效率，有效缓解了作业时对城市交通环境影响；上一节桥墩预制段通过通孔与所述空心钢管与下一节桥墩预制段连接，最底端桥墩预制段的通孔通过空心钢管与承台连接，通过空心钢管嵌入通孔中、浇筑自密实混凝土等措施约束了相邻桥墩预制段之间、最底端桥墩预制段与承台之间的水平位移，有效提高了桥墩在拼接过程中及拼接完成后的抗剪能力，解决了当桥墩遭遇较大的侧向力时因为抗剪能力不足，而使桥墩拼接装置破坏而导致的安全事故问题；预制段中心处留有通孔，节段拼装过程中依次由通孔处浇筑自密实混凝土，加强了各个桥墩预制段之间的连接，提高了桥墩的抗震性能。To sum up, the bridge pier assembly device provided by the utility model is composed of various pier prefabricated sections, which is convenient for on-site operation, can improve operation efficiency, and effectively alleviates the impact on the urban traffic environment during operation; the previous section of pier prefabrication The section is connected with the hollow steel pipe and the prefabricated section of the next pier through the through hole, and the through hole of the prefabricated section of the pier at the bottom is connected with the cap platform through the hollow steel pipe, and is constrained by measures such as embedding the hollow steel pipe into the through hole and pouring self-compacting concrete. The horizontal displacement between the prefabricated sections of adjacent piers and between the prefabricated section of the bottom pier and the cap is effectively improved, and the shear resistance of the piers during and after splicing is effectively improved, and it solves the problem when the pier encounters a large lateral force. Due to the lack of shearing capacity, the safety accident caused by the damage of the splicing device of the bridge piers; there is a through hole in the center of the prefabricated section, and self-compacting concrete is poured from the through hole in the process of segment assembly to strengthen each pier The connection between the prefabricated sections improves the seismic performance of the piers.
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等同变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围内。The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent transformation made by using the specification of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, shall be In the same way, it is included in the patent protection scope of the present utility model.
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| CN113123222A (en) * | 2021-04-23 | 2021-07-16 | 上海市政工程设计研究总院（集团）有限公司 | Socket joint type connecting structure between prefabricated bridge pier column and bearing platform additionally provided with boss |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113123222A (en) * | 2021-04-23 | 2021-07-16 | 上海市政工程设计研究总院（集团）有限公司 | Socket joint type connecting structure between prefabricated bridge pier column and bearing platform additionally provided with boss |
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Address after: 350700 South Lake Garden Building No. 18, Zhangcheng, Yongtai County, Fuzhou City, Fujian Province 202 Patentee after: FUJIAN YONGFU CONSTRUCTION GROUP Co.,Ltd. Country or region after: China Patentee after: Fujian University of Science and Technology Address before: 350700 South Lake Garden Building No. 18, Zhangcheng, Yongtai County, Fuzhou City, Fujian Province 202 Patentee before: FUJIAN YONGFU CONSTRUCTION GROUP Co.,Ltd. Country or region before: China Patentee before: FUJIAN University OF TECHNOLOGY |