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A platform for research: civil engineering, architecture and urbanism
Graded stress steel pull rod structure for large-span cantilever system
The invention relates to the technical field of constructional engineering, in particular to a graded stress steel pull rod structure for a large-span cantilever system, which is characterized in that a jig frame base is arranged on the surface of a fixed seat, a jig frame is arranged on the surface of the jig frame base, a cross beam is arranged at one end of a steel beam, and a steel column and a steel pull rod are arranged above the steel beam; the method has the beneficial effects that through stress analysis, the stress form of the structure is deepened again, pull-up lifting points are increased, a cantilever structure is changed into a cable-stayed structure, the load of a cantilever steel beam from the upper portion is reduced in a graded load bearing mode, the structural safety is guaranteed, the load needing to be borne by a single steel pull rod is reduced, the difficulty in component machining and construction is reduced, and the construction efficiency is improved. According to the construction method, the steel pull rods are obliquely arranged, so that the concrete crack of the floor support plate can be caused by bending deformation generated by stress of a steel beam component, the inverted construction method that an upper structure is firstly constructed, and then the concrete of the lower floor support plate is constructed after the deformation of a lower cantilever steel beam is completed is adopted, the concrete crack is reduced, and the construction quality of a project is ensured.
本发明涉及建筑工程技术领域，具体为一种用于大跨度悬挑体系的分级受力钢拉杆结构，包括：固定座表面设置有胎架底座，胎架底座表面设置有胎架，钢梁一端设置有横梁，钢梁上方设置有钢柱和钢拉杆；有益效果为：通过受力分析，对结构受力形式重新深化，增加上拉吊点，将悬臂结构改为斜拉结构，并通过分级承担荷载的方式降低悬臂钢梁来自上部的荷载，保证结构安全性，降低单个钢拉杆需要承担的荷载，减少了构件加工、施工难，通过钢拉杆倾斜的设置对于钢梁构件受力产生的弯曲变形将会导致的楼承板混凝土裂缝，采用先施工上部结构，待下部悬臂钢梁完成变形后，再施工下部楼承板混凝土的逆序施工方法，减少混凝土裂缝，保证了工程的施工质量。
Graded stress steel pull rod structure for large-span cantilever system
The invention relates to the technical field of constructional engineering, in particular to a graded stress steel pull rod structure for a large-span cantilever system, which is characterized in that a jig frame base is arranged on the surface of a fixed seat, a jig frame is arranged on the surface of the jig frame base, a cross beam is arranged at one end of a steel beam, and a steel column and a steel pull rod are arranged above the steel beam; the method has the beneficial effects that through stress analysis, the stress form of the structure is deepened again, pull-up lifting points are increased, a cantilever structure is changed into a cable-stayed structure, the load of a cantilever steel beam from the upper portion is reduced in a graded load bearing mode, the structural safety is guaranteed, the load needing to be borne by a single steel pull rod is reduced, the difficulty in component machining and construction is reduced, and the construction efficiency is improved. According to the construction method, the steel pull rods are obliquely arranged, so that the concrete crack of the floor support plate can be caused by bending deformation generated by stress of a steel beam component, the inverted construction method that an upper structure is firstly constructed, and then the concrete of the lower floor support plate is constructed after the deformation of a lower cantilever steel beam is completed is adopted, the concrete crack is reduced, and the construction quality of a project is ensured.
本发明涉及建筑工程技术领域，具体为一种用于大跨度悬挑体系的分级受力钢拉杆结构，包括：固定座表面设置有胎架底座，胎架底座表面设置有胎架，钢梁一端设置有横梁，钢梁上方设置有钢柱和钢拉杆；有益效果为：通过受力分析，对结构受力形式重新深化，增加上拉吊点，将悬臂结构改为斜拉结构，并通过分级承担荷载的方式降低悬臂钢梁来自上部的荷载，保证结构安全性，降低单个钢拉杆需要承担的荷载，减少了构件加工、施工难，通过钢拉杆倾斜的设置对于钢梁构件受力产生的弯曲变形将会导致的楼承板混凝土裂缝，采用先施工上部结构，待下部悬臂钢梁完成变形后，再施工下部楼承板混凝土的逆序施工方法，减少混凝土裂缝，保证了工程的施工质量。
Graded stress steel pull rod structure for large-span cantilever system
一种用于大跨度悬挑体系的分级受力钢拉杆结构
LIU HONGWEI (author) / QI KANG (author) / ZHANG RUIYUAN (author) / SHI ZHONGZHOU (author) / LI SHENGKUN (author) / QIN LINHUI (author) / QU ZIHAN (author) / ZHU LEI (author)
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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