A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridge deck construction method for large-span highway-railway dual-purpose steel truss girder bridge
The invention discloses a bridge floor construction method for a large-span highway-railway dual-purpose steel truss girder bridge. The bridge floor construction method comprises the following steps that S1, skip pouring is conducted on a positive bending moment area of a highway bridge floor on the steel truss girder bridge after closure is completed; the skip bay pouring is divided into a preset number of batches, each batch is symmetrically and simultaneously carried out in the direction from the side span to the middle span, and each batch is spaced by a preset time length; s2, construction of a lower-layer railway bridge deck is conducted; s3, carrying out preloading with preset weight on the side span of the bridge; s4, concrete pouring of the negative moment area of the highway bridge floor is conducted, and bridge floor pouring closure is completed; s5, unloading the heaped load of the bridge side span; and construction of the highway-railway dual-purpose bridge deck is completed. By means of the method, the shrinkage effect in concrete bridge deck construction can be improved.
本发明公开了一种用于大跨度公铁两用钢桁梁桥的桥面施工方法，包括以下步骤：S1、在合龙完成的钢桁梁桥上对公路桥面正弯矩区进行跳仓浇筑；所述跳仓浇筑分为预设数量个批次，每个批次均对称地从边跨向中跨方向同时进行，每个批次间隔预设时长；S2、进行下层铁路桥面的施工；S3、在桥梁边跨进行预设重量的堆载；S4、进行公路桥面负弯矩区的混凝土浇筑，完成桥面浇筑合龙；S5、卸载桥梁边跨的所述堆载；完成公铁两用桥面的施工。本发明的方法能够改善混凝土桥面板施工中的收缩效应。
Bridge deck construction method for large-span highway-railway dual-purpose steel truss girder bridge
The invention discloses a bridge floor construction method for a large-span highway-railway dual-purpose steel truss girder bridge. The bridge floor construction method comprises the following steps that S1, skip pouring is conducted on a positive bending moment area of a highway bridge floor on the steel truss girder bridge after closure is completed; the skip bay pouring is divided into a preset number of batches, each batch is symmetrically and simultaneously carried out in the direction from the side span to the middle span, and each batch is spaced by a preset time length; s2, construction of a lower-layer railway bridge deck is conducted; s3, carrying out preloading with preset weight on the side span of the bridge; s4, concrete pouring of the negative moment area of the highway bridge floor is conducted, and bridge floor pouring closure is completed; s5, unloading the heaped load of the bridge side span; and construction of the highway-railway dual-purpose bridge deck is completed. By means of the method, the shrinkage effect in concrete bridge deck construction can be improved.
本发明公开了一种用于大跨度公铁两用钢桁梁桥的桥面施工方法，包括以下步骤：S1、在合龙完成的钢桁梁桥上对公路桥面正弯矩区进行跳仓浇筑；所述跳仓浇筑分为预设数量个批次，每个批次均对称地从边跨向中跨方向同时进行，每个批次间隔预设时长；S2、进行下层铁路桥面的施工；S3、在桥梁边跨进行预设重量的堆载；S4、进行公路桥面负弯矩区的混凝土浇筑，完成桥面浇筑合龙；S5、卸载桥梁边跨的所述堆载；完成公铁两用桥面的施工。本发明的方法能够改善混凝土桥面板施工中的收缩效应。
Bridge deck construction method for large-span highway-railway dual-purpose steel truss girder bridge
一种用于大跨度公铁两用钢桁梁桥的桥面施工方法
PENG PENG (author) / ZHOU WEI (author) / XIE YIPING (author) / DENG SHUAI (author) / ZHANG NIJIN (author) / ZENG HUIPING (author) / LUO JIANPING (author) / LIU JUN (author) / OU LIN (author) / CHEN ZHI (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Highway bridge deck construction method of highway-railway dual-purpose bridge
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