A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for steel box formwork of gate-type pier overcrossing existing line
The invention provides a construction method for a steel box template of an overpass existing line gate type pier, which comprises the following steps of: longitudinally segmenting a to-be-constructed steel box template according to a first preset requirement, and dividing the to-be-constructed steel box template into two steel support leg sections and a plurality of steel cross beam sections; the two steel supporting leg sections and the multiple steel cross beam sections are spliced to form a gate-type pier steel box formwork body; two pier columns are installed at preset positions, and an embedded steel cylinder is installed at the top of each pier column; hoisting the gate-type pier steel box template main body until the gate-type pier steel box template main body is connected with the embedded steel cylinder; a bent cap steel bar, a prestressed steel strand and a prestressed pipeline are installed in the gate-type pier steel box formwork body; performing concrete pouring on the gate-type pier steel box template main body in batches according to a second preset requirement; and synchronously carrying out pre-stress construction on the pre-stress steel strands in batches. The steel box formwork is adopted as a concrete cast-in-place support, the steel box formwork and part of steel bars are hoisted synchronously, the construction period is greatly shortened, the safety risk is greatly reduced, and compared with a steel cover beam, the manufacturing cost is low, and durability is high.
本申请提供一种上跨既有线路门式墩钢箱模板施工方法，包括：将待施工的钢箱模板按照第一预设要求进行纵向分段，分成两个钢支腿节段和多个钢横梁节段；将两个钢支腿节段和多个钢横梁节段进行拼装，形成门式墩钢箱模板主体；在预设位置安装两个墩柱，在每个墩柱的顶部安装预埋钢筒；将门式墩钢箱模板主体吊装，至门式墩钢箱模板主体与预埋钢筒连接；在门式墩钢箱模板主体内安装盖梁钢筋、预应力钢绞线及预应力管道；按照第二预设要求分批次对门式墩钢箱模板主体进行混凝土浇筑；对预应力钢绞线同步分批次进行预应力施工。采用钢箱模板作为混凝土现浇支架，钢箱模板与部分钢筋同步吊装，大大降低了施工工期和安全风险，较钢盖梁造价小，且耐久性大。
Construction method for steel box formwork of gate-type pier overcrossing existing line
The invention provides a construction method for a steel box template of an overpass existing line gate type pier, which comprises the following steps of: longitudinally segmenting a to-be-constructed steel box template according to a first preset requirement, and dividing the to-be-constructed steel box template into two steel support leg sections and a plurality of steel cross beam sections; the two steel supporting leg sections and the multiple steel cross beam sections are spliced to form a gate-type pier steel box formwork body; two pier columns are installed at preset positions, and an embedded steel cylinder is installed at the top of each pier column; hoisting the gate-type pier steel box template main body until the gate-type pier steel box template main body is connected with the embedded steel cylinder; a bent cap steel bar, a prestressed steel strand and a prestressed pipeline are installed in the gate-type pier steel box formwork body; performing concrete pouring on the gate-type pier steel box template main body in batches according to a second preset requirement; and synchronously carrying out pre-stress construction on the pre-stress steel strands in batches. The steel box formwork is adopted as a concrete cast-in-place support, the steel box formwork and part of steel bars are hoisted synchronously, the construction period is greatly shortened, the safety risk is greatly reduced, and compared with a steel cover beam, the manufacturing cost is low, and durability is high.
本申请提供一种上跨既有线路门式墩钢箱模板施工方法，包括：将待施工的钢箱模板按照第一预设要求进行纵向分段，分成两个钢支腿节段和多个钢横梁节段；将两个钢支腿节段和多个钢横梁节段进行拼装，形成门式墩钢箱模板主体；在预设位置安装两个墩柱，在每个墩柱的顶部安装预埋钢筒；将门式墩钢箱模板主体吊装，至门式墩钢箱模板主体与预埋钢筒连接；在门式墩钢箱模板主体内安装盖梁钢筋、预应力钢绞线及预应力管道；按照第二预设要求分批次对门式墩钢箱模板主体进行混凝土浇筑；对预应力钢绞线同步分批次进行预应力施工。采用钢箱模板作为混凝土现浇支架，钢箱模板与部分钢筋同步吊装，大大降低了施工工期和安全风险，较钢盖梁造价小，且耐久性大。
Construction method for steel box formwork of gate-type pier overcrossing existing line
一种上跨既有线路门式墩钢箱模板施工方法
SHANG PENGJUN (author) / LIU SHENGXIU (author) / JI SHUAIKE (author) / LIU ZHAOWEI (author) / LIN ZE (author) / LIU XING (author) / LING JIANQI (author) / HAN YAXU (author) / CAO XIANGYANG (author) / ZHAO KUNFENG (author)
2022-07-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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