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A platform for research: civil engineering, architecture and urbanism
Steel-concrete composite beam cable-stayed bridge wet joint construction method
The invention discloses a construction method for a wet joint of a steel-concrete composite beam cable-stayed bridge. In the construction of the steel beam with two sections and one circulation, the wet joint at the foremost end is reserved in the next circulation for pouring, so that when the steel beam in the next circulation is installed, the maximum tensile stress of the wet joint in the circulation is 1.5 Mpa and is reduced by about 0.5 Mpa compared with the tensile stress when the wet joint is not reserved, the requirement of subsequent load loading on the tensile stress of the wet joint is reduced, and the construction efficiency is improved. Therefore, the time for waiting for concrete curing is shortened, and the construction progress of a project is accelerated on the premise of ensuring the safety quality; and possibility is created for installation of the three-cycle steel beam. The problem that the tensile stress of the wet joint concrete is too large in the cantilever assembling process of the steel-concrete composite beam cable-stayed bridge is solved. And the time for waiting for curing of the wet joint concrete during subsequent section steel beam installation is shortened. And on the premise of ensuring the quality, the construction progress of a project is accelerated.
本发明公开了一种钢‑混结合梁斜拉桥湿接缝施工方法，具体实施如下；在两节段一循环的钢梁施工中，将最前端的一道湿接缝预留在下一个循环中浇筑，使得在下一个循环钢梁安装时，本循环的湿接缝拉应力最大为1.5Mpa比不预留时减小了约0.5Mpa，使得后续荷载加载对湿接缝拉应力的要求降低，从而使得等待混凝土养护的时间得以缩短，在保证安全质量的前提下，加快了项目的施工进度；且为三循环钢梁安装创造了可能性。本发明解决了钢‑混结合梁斜拉桥悬臂拼装过程中湿接缝混凝土拉应力过大的问题。使得后续节段钢梁安装时需等待湿接缝混凝土养护时间得以缩短。在保证质量的前提下，加快了项目的施工进度。
Steel-concrete composite beam cable-stayed bridge wet joint construction method
The invention discloses a construction method for a wet joint of a steel-concrete composite beam cable-stayed bridge. In the construction of the steel beam with two sections and one circulation, the wet joint at the foremost end is reserved in the next circulation for pouring, so that when the steel beam in the next circulation is installed, the maximum tensile stress of the wet joint in the circulation is 1.5 Mpa and is reduced by about 0.5 Mpa compared with the tensile stress when the wet joint is not reserved, the requirement of subsequent load loading on the tensile stress of the wet joint is reduced, and the construction efficiency is improved. Therefore, the time for waiting for concrete curing is shortened, and the construction progress of a project is accelerated on the premise of ensuring the safety quality; and possibility is created for installation of the three-cycle steel beam. The problem that the tensile stress of the wet joint concrete is too large in the cantilever assembling process of the steel-concrete composite beam cable-stayed bridge is solved. And the time for waiting for curing of the wet joint concrete during subsequent section steel beam installation is shortened. And on the premise of ensuring the quality, the construction progress of a project is accelerated.
本发明公开了一种钢‑混结合梁斜拉桥湿接缝施工方法，具体实施如下；在两节段一循环的钢梁施工中，将最前端的一道湿接缝预留在下一个循环中浇筑，使得在下一个循环钢梁安装时，本循环的湿接缝拉应力最大为1.5Mpa比不预留时减小了约0.5Mpa，使得后续荷载加载对湿接缝拉应力的要求降低，从而使得等待混凝土养护的时间得以缩短，在保证安全质量的前提下，加快了项目的施工进度；且为三循环钢梁安装创造了可能性。本发明解决了钢‑混结合梁斜拉桥悬臂拼装过程中湿接缝混凝土拉应力过大的问题。使得后续节段钢梁安装时需等待湿接缝混凝土养护时间得以缩短。在保证质量的前提下，加快了项目的施工进度。
Steel-concrete composite beam cable-stayed bridge wet joint construction method
一种钢-混结合梁斜拉桥湿接缝施工方法
WANG QIANG (author) / WANG ZHONGLIN (author) / LIU KAIWEN (author) / ZENG BIN (author) / LUO XIANGYI (author) / WANG PENG (author)
2023-08-15
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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