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A platform for research: civil engineering, architecture and urbanism
Dismantling method for temporary supporting rod in steel beam body in limited space
The invention relates to the technical field of bridge construction, in particular to a method for dismantling a temporary supporting rod in a steel beam body in a limited space, which comprises the following steps of: S1, releasing lower end constraint and moving out; s2, removing the high bolt and the splice plate on the flange surface on the outermost side, mounting a bolting lifting lug and a welding lifting lug, hanging a chain block I on the welding lifting lug, tightly hanging the bolting lifting lug by a lifting hook head of the chain block I, removing the high bolt and the splice plate on a web plate at the joint of the two Y-shaped rods, controlling the two chain blocks I to enable the Y-shaped rods below to fall onto a manual forklift, enabling the Y-shaped rods to lie flat, and completing removal; s3, three lifting points and three anchor points are installed, and chain blocks are tightly hung between the corresponding anchor points and lifting points; s4, end constraint on the upper portion of the temporary supporting rod is relieved, the second chain block and the third chain block are tightened, and the fourth chain block is loosened; and S5, the fourth chain block is removed, the second chain block is tightened, the third chain block is loosened, the third chain block is removed, the second chain block is controlled to enable the Y-shaped rod to fall onto the manual forklift, the Y-shaped rod is made to lie flat, and dismantling is completed.
本发明涉及桥梁施工技术领域，具体地说，涉及一种受限空间下钢梁体内临时撑杆的拆除方法，包括以下步骤：S1、解除下方的端头约束并移出；S2、解除最外侧翼缘面的高栓及拼接板，并安装栓接吊耳和焊接吊耳，焊接吊耳挂上倒链一，倒链一的起重钩头挂紧栓接吊耳，拆除两个Y形杆连接处腹板的高栓及拼接板，控制两个倒链一将下方的Y形杆下落至手动叉车上，使其平躺，完成拆除；S3、安装三个吊点以及三个锚点，并在对应锚点和吊点间挂紧倒链；S4、解除临时撑杆上方的端头约束，收紧倒链二、倒链三并放松倒链四；S5、移除倒链四，收紧倒链二并放松倒链三，倒链三移除，控制倒链二将Y形杆向下落至手动叉车上，使其平躺，完成拆除。
Dismantling method for temporary supporting rod in steel beam body in limited space
The invention relates to the technical field of bridge construction, in particular to a method for dismantling a temporary supporting rod in a steel beam body in a limited space, which comprises the following steps of: S1, releasing lower end constraint and moving out; s2, removing the high bolt and the splice plate on the flange surface on the outermost side, mounting a bolting lifting lug and a welding lifting lug, hanging a chain block I on the welding lifting lug, tightly hanging the bolting lifting lug by a lifting hook head of the chain block I, removing the high bolt and the splice plate on a web plate at the joint of the two Y-shaped rods, controlling the two chain blocks I to enable the Y-shaped rods below to fall onto a manual forklift, enabling the Y-shaped rods to lie flat, and completing removal; s3, three lifting points and three anchor points are installed, and chain blocks are tightly hung between the corresponding anchor points and lifting points; s4, end constraint on the upper portion of the temporary supporting rod is relieved, the second chain block and the third chain block are tightened, and the fourth chain block is loosened; and S5, the fourth chain block is removed, the second chain block is tightened, the third chain block is loosened, the third chain block is removed, the second chain block is controlled to enable the Y-shaped rod to fall onto the manual forklift, the Y-shaped rod is made to lie flat, and dismantling is completed.
本发明涉及桥梁施工技术领域，具体地说，涉及一种受限空间下钢梁体内临时撑杆的拆除方法，包括以下步骤：S1、解除下方的端头约束并移出；S2、解除最外侧翼缘面的高栓及拼接板，并安装栓接吊耳和焊接吊耳，焊接吊耳挂上倒链一，倒链一的起重钩头挂紧栓接吊耳，拆除两个Y形杆连接处腹板的高栓及拼接板，控制两个倒链一将下方的Y形杆下落至手动叉车上，使其平躺，完成拆除；S3、安装三个吊点以及三个锚点，并在对应锚点和吊点间挂紧倒链；S4、解除临时撑杆上方的端头约束，收紧倒链二、倒链三并放松倒链四；S5、移除倒链四，收紧倒链二并放松倒链三，倒链三移除，控制倒链二将Y形杆向下落至手动叉车上，使其平躺，完成拆除。
Dismantling method for temporary supporting rod in steel beam body in limited space
一种受限空间下钢梁体内临时撑杆的拆除方法
ZHANG SHILI (author) / ZOU KONGQING (author) / LIANG CHAO (author) / CAO HAN (author) / DAI DONGZE (author) / CHU BU (author) / FANG JI (author) / WU JIANMING (author) / WANG YANG (author) / LIU YU (author)
2024-09-06
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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