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A platform for research: civil engineering, architecture and urbanism
Distribution girder type walking incremental launching construction method for truss girder
The invention provides a distributive girder type walking incremental launching construction method for a truss girder, which comprises the following steps: S1, construction preparation work: installing a walking machine and a bearing beam at two ends of a bearing beam of a temporary pier, installing a temporary buttress and a distributive girder in the middle of the bearing beam, and placing the truss girder in place; s2, the two walking machines synchronously jack up by 25 cm, so that the beam bottom of the truss beam and the distribution beam are separated by 15 cm; s3, horizontal jacks of the two walking machines synchronously drive the truss girder to push and move forwards by 60 cm; the walking machine is adopted as main vertical jacking and horizontal pushing equipment, synchronous control precision is high, horizontal force is small, bearing of the temporary piers is facilitated, a sliding way does not need to be arranged, construction of the temporary piers is facilitated, the temporary piers can be evenly stressed during vertical jacking and beam falling, the load borne by a single position is 1/2 of that borne by a traditional technology, and the construction efficiency is greatly improved. The structure size of the temporary pier can be reduced, cost is saved, the construction safety risk of the technology is low, and safety is guaranteed.
本发明提供了一种用于桁架梁的分配梁式步履顶推施工方法，包括以下步骤：S1：施工准备工作，在临时墩的承重梁上两端安装步履机及垫梁，在承重梁中间安装临时支墩和分配梁，桁架梁就位；S2：两台步履机同步顶升25cm，使桁架梁的梁底和分配梁之间脱空15cm；S3：两台步履机水平千斤顶同步带动桁架梁顶推前移60cm；本发明通过采用步履机作为主要竖向顶升和水平顶推的设备，同步控制精度高，水平力小，对临时墩的承载有利，不需要布设滑道，便于临时墩施工，竖向顶升和落梁时临时墩均能均匀受力，单处承受的荷载是传统技术的1/2，可减小临时墩结构尺寸，节约费用，因上述原因该技术的施工安全风险低，安全有保障。
Distribution girder type walking incremental launching construction method for truss girder
The invention provides a distributive girder type walking incremental launching construction method for a truss girder, which comprises the following steps: S1, construction preparation work: installing a walking machine and a bearing beam at two ends of a bearing beam of a temporary pier, installing a temporary buttress and a distributive girder in the middle of the bearing beam, and placing the truss girder in place; s2, the two walking machines synchronously jack up by 25 cm, so that the beam bottom of the truss beam and the distribution beam are separated by 15 cm; s3, horizontal jacks of the two walking machines synchronously drive the truss girder to push and move forwards by 60 cm; the walking machine is adopted as main vertical jacking and horizontal pushing equipment, synchronous control precision is high, horizontal force is small, bearing of the temporary piers is facilitated, a sliding way does not need to be arranged, construction of the temporary piers is facilitated, the temporary piers can be evenly stressed during vertical jacking and beam falling, the load borne by a single position is 1/2 of that borne by a traditional technology, and the construction efficiency is greatly improved. The structure size of the temporary pier can be reduced, cost is saved, the construction safety risk of the technology is low, and safety is guaranteed.
本发明提供了一种用于桁架梁的分配梁式步履顶推施工方法，包括以下步骤：S1：施工准备工作，在临时墩的承重梁上两端安装步履机及垫梁，在承重梁中间安装临时支墩和分配梁，桁架梁就位；S2：两台步履机同步顶升25cm，使桁架梁的梁底和分配梁之间脱空15cm；S3：两台步履机水平千斤顶同步带动桁架梁顶推前移60cm；本发明通过采用步履机作为主要竖向顶升和水平顶推的设备，同步控制精度高，水平力小，对临时墩的承载有利，不需要布设滑道，便于临时墩施工，竖向顶升和落梁时临时墩均能均匀受力，单处承受的荷载是传统技术的1/2，可减小临时墩结构尺寸，节约费用，因上述原因该技术的施工安全风险低，安全有保障。
Distribution girder type walking incremental launching construction method for truss girder
一种用于桁架梁的分配梁式步履顶推施工方法
WU YUXIAN (author) / JIN HE (author) / RONG GUOCHENG (author) / LIU QIANG (author) / YANG HUAN (author) / ZHANG CHUNMU (author) / WANG LE (author) / WU QI (author) / CHENG YANPING (author) / LI XIAOYUN (author)
2023-11-24
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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