A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Jacking municipal frame bridge structure and construction method
The invention relates to the technical field of municipal frame bridge construction, in particular to a jacking municipal frame bridge structure and a construction method. The jacking municipal framebridge structure comprises a foundation pit, the two sides of the foundation pit are each provided with a first fender post crown beam and a plurality of first fender posts, a back post is arranged atthe tail of the foundation pit, and a back post crown beam is arranged at the top of the back post; a cast-in-place frame structure bridge is arranged in the foundation pit, and a sliding piece is arranged at the bottom of the frame structure bridge. Second fender post top beams and a plurality of second fender posts are arranged on the two sides, in place, of the frame structure bridge. According to the invention, the pushing construction method is applied to the design and construction of the municipal frame-structure bridge close to the high-speed rail bridge; the problem of high-speed rail bridge pile upheaval caused by soil body unloading in construction is solved through structural balance weight, the influence of long soil body exposure time on high-speed rail bridge pile deformation is reduced through time and space timeliness, and the influence of municipal road high-speed rail bridge pile construction close to high-speed rail bridge piles on existing railway operation is effectively reduced.
本发明涉及市政框构桥施工技术领域，具体而言，涉及一种顶进市政框构桥结构及施工方法。所述顶进市政框构桥结构包括基坑，所述基坑的两侧均设置有第一围护桩冠梁和多个第一围护桩，所述基坑的尾部设置有后背桩，后背桩的顶部设置有后背桩冠梁；所述基坑内设置有现浇筑的框构桥，框构桥的底部设置有滑动件；所述框构桥就位的两侧均设置有第二围护桩冠梁和多个第二围护桩。本发明将顶推施工工法应用到市政框构桥临近高铁桥梁设计及施工中，利用结构配重解决施工中由于土体卸载引起高铁桥桩隆起问题，通过时间与空间时效性降低由于土体暴露时间较长对高铁桥桩变形影响，有效降低市政道路临近高铁桥桩施工对既有铁路运营的影响。
Jacking municipal frame bridge structure and construction method
The invention relates to the technical field of municipal frame bridge construction, in particular to a jacking municipal frame bridge structure and a construction method. The jacking municipal framebridge structure comprises a foundation pit, the two sides of the foundation pit are each provided with a first fender post crown beam and a plurality of first fender posts, a back post is arranged atthe tail of the foundation pit, and a back post crown beam is arranged at the top of the back post; a cast-in-place frame structure bridge is arranged in the foundation pit, and a sliding piece is arranged at the bottom of the frame structure bridge. Second fender post top beams and a plurality of second fender posts are arranged on the two sides, in place, of the frame structure bridge. According to the invention, the pushing construction method is applied to the design and construction of the municipal frame-structure bridge close to the high-speed rail bridge; the problem of high-speed rail bridge pile upheaval caused by soil body unloading in construction is solved through structural balance weight, the influence of long soil body exposure time on high-speed rail bridge pile deformation is reduced through time and space timeliness, and the influence of municipal road high-speed rail bridge pile construction close to high-speed rail bridge piles on existing railway operation is effectively reduced.
本发明涉及市政框构桥施工技术领域，具体而言，涉及一种顶进市政框构桥结构及施工方法。所述顶进市政框构桥结构包括基坑，所述基坑的两侧均设置有第一围护桩冠梁和多个第一围护桩，所述基坑的尾部设置有后背桩，后背桩的顶部设置有后背桩冠梁；所述基坑内设置有现浇筑的框构桥，框构桥的底部设置有滑动件；所述框构桥就位的两侧均设置有第二围护桩冠梁和多个第二围护桩。本发明将顶推施工工法应用到市政框构桥临近高铁桥梁设计及施工中，利用结构配重解决施工中由于土体卸载引起高铁桥桩隆起问题，通过时间与空间时效性降低由于土体暴露时间较长对高铁桥桩变形影响，有效降低市政道路临近高铁桥桩施工对既有铁路运营的影响。
Jacking municipal frame bridge structure and construction method
一种顶进市政框构桥结构及施工方法
WANG TING (author) / WANG DEFU (author) / GAO YULAN (author) / LIU JIANYOU (author) / YU CHENYUN (author) / MA KAI (author) / DONG YIXIN (author) / PENG BIN (author) / WANG YANG (author) / JIANG YANHONG (author)
2020-08-07
Patent
Electronic Resource
Chinese
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