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Through inverted triangular comb-shaped steel pipe arch rib mounting method
A through inverted triangular comb-shaped steel pipe arch rib mounting method comprises the steps that three arch ribs are formed by arch feet on the two sides and a middle arch rib set, after the arch feet are positioned and installed, a main arch and two auxiliary arches in the middle arch rib set are synchronously retreated and hoisted to one end in advance, and after the main arch is folded inthe midspan, the two auxiliary arches continue to be synchronously retreated and hoisted to the other end arch feet to be folded. The problem that transportation and hoisting equipment difficultly occupies a safe operation position due to a small hoisting operation surface on a main beam is solved, and the temporary stability of the structure in the construction process is enhanced.
一种下承式倒三角梳型钢管拱肋安装方法，包括由两侧拱脚和中间拱肋组构成的三拱肋，拱脚定位安装后，中间拱肋组中一主拱和两副拱先行至一端同步后退式吊装，主拱跨中合拢后，两副拱继续同步后退吊装至另一端拱脚处合拢。解决主梁上吊装作业面小而导致的运输、吊装设备难于占据安全作业位置的问题，增强施工过程中结构的临时稳定性。
Through inverted triangular comb-shaped steel pipe arch rib mounting method
A through inverted triangular comb-shaped steel pipe arch rib mounting method comprises the steps that three arch ribs are formed by arch feet on the two sides and a middle arch rib set, after the arch feet are positioned and installed, a main arch and two auxiliary arches in the middle arch rib set are synchronously retreated and hoisted to one end in advance, and after the main arch is folded inthe midspan, the two auxiliary arches continue to be synchronously retreated and hoisted to the other end arch feet to be folded. The problem that transportation and hoisting equipment difficultly occupies a safe operation position due to a small hoisting operation surface on a main beam is solved, and the temporary stability of the structure in the construction process is enhanced.
一种下承式倒三角梳型钢管拱肋安装方法，包括由两侧拱脚和中间拱肋组构成的三拱肋，拱脚定位安装后，中间拱肋组中一主拱和两副拱先行至一端同步后退式吊装，主拱跨中合拢后，两副拱继续同步后退吊装至另一端拱脚处合拢。解决主梁上吊装作业面小而导致的运输、吊装设备难于占据安全作业位置的问题，增强施工过程中结构的临时稳定性。
Through inverted triangular comb-shaped steel pipe arch rib mounting method
一种下承式倒三角梳型钢管拱肋安装方法
PU FENGPING (author) / WANG HUADONG (author) / GU WENKAI (author) / HUANG SHUHUA (author) / LI YOUMING (author) / PENG LIANGYING (author) / LIU RIFEI (author) / LI KAI (author)
2020-09-04
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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