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A platform for research: civil engineering, architecture and urbanism
Push type walking incremental launching construction method for truss girder
The invention provides a push-type walking pushing construction method for a truss girder, which comprises the following steps: S1, construction preparation work: a pushing mechanism and a system conversion mechanism are mounted at two ends of a bearing beam, the pushing mechanism is composed of a horizontal jack, a pawl, a counter-force seat, a sliding shoe, an MGB sliding plate, a spherical crown and a rubber pad, and the system conversion mechanism is mounted on the bearing beam; the system conversion mechanism is composed of two 1500t two-dimensional jacks and a distribution beam, and a truss beam is placed on a rubber pad on a spherical crown; the lengths of the bearing beam and the slide way can be prolonged according to actual engineering requirements, long-distance continuous pushing of the truss girder can be achieved, the horizontal jack is adopted for pre-tightening before pushing, the gap error between a pawl bracket and an orifice is eliminated, the synchronous control problem of pushing operation is solved, and due to the fact that synchronous control is guaranteed, the pushing efficiency is improved. Due to the fact that pushing is not synchronous, generated large horizontal force is small, design of the temporary piers is facilitated, cost is saved, and the construction safety risk of the technology is low.
本发明提供了一种用于桁架梁的推进式步履顶推施工方法，包括以下步骤：S1：施工准备工作，在承重梁上两端安装推送机构和体系转换机构，推送机构由水平千斤顶、棘爪、反力座、滑靴、MGB滑板、球冠和橡胶垫组成，体系转换机构由两台1500t二维千斤顶和分配梁组成，桁架梁放置在球冠上的橡胶垫上；本发明承重梁及滑道的长度可以根据实际工程需要进行延长，能实现桁架梁的长距离连续推送，推送前采用水平千斤顶预紧，消除棘爪牛腿和孔口之间的间隙误差，解决了推送作业的同步性控制难题，因同步控制有保障，因推送不同步产生较大水平力小，对临时墩的设计有利，节约费用，该技术施工安全风险较低。
Push type walking incremental launching construction method for truss girder
The invention provides a push-type walking pushing construction method for a truss girder, which comprises the following steps: S1, construction preparation work: a pushing mechanism and a system conversion mechanism are mounted at two ends of a bearing beam, the pushing mechanism is composed of a horizontal jack, a pawl, a counter-force seat, a sliding shoe, an MGB sliding plate, a spherical crown and a rubber pad, and the system conversion mechanism is mounted on the bearing beam; the system conversion mechanism is composed of two 1500t two-dimensional jacks and a distribution beam, and a truss beam is placed on a rubber pad on a spherical crown; the lengths of the bearing beam and the slide way can be prolonged according to actual engineering requirements, long-distance continuous pushing of the truss girder can be achieved, the horizontal jack is adopted for pre-tightening before pushing, the gap error between a pawl bracket and an orifice is eliminated, the synchronous control problem of pushing operation is solved, and due to the fact that synchronous control is guaranteed, the pushing efficiency is improved. Due to the fact that pushing is not synchronous, generated large horizontal force is small, design of the temporary piers is facilitated, cost is saved, and the construction safety risk of the technology is low.
本发明提供了一种用于桁架梁的推进式步履顶推施工方法，包括以下步骤：S1：施工准备工作，在承重梁上两端安装推送机构和体系转换机构，推送机构由水平千斤顶、棘爪、反力座、滑靴、MGB滑板、球冠和橡胶垫组成，体系转换机构由两台1500t二维千斤顶和分配梁组成，桁架梁放置在球冠上的橡胶垫上；本发明承重梁及滑道的长度可以根据实际工程需要进行延长，能实现桁架梁的长距离连续推送，推送前采用水平千斤顶预紧，消除棘爪牛腿和孔口之间的间隙误差，解决了推送作业的同步性控制难题，因同步控制有保障，因推送不同步产生较大水平力小，对临时墩的设计有利，节约费用，该技术施工安全风险较低。
Push type walking incremental launching construction method for truss girder
一种用于桁架梁的推进式步履顶推施工方法
WU YUXIAN (author) / YAN SHENGQUAN (author) / CAI YANBIAO (author) / LIU QIANG (author) / YANG HUAN (author) / ZHANG CHUNMU (author) / WANG LE (author) / LIU CHENGHONG (author) / YAN PING (author) / XIAO YANZHENG (author)
2023-12-01
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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