A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-span and large-cantilever space grid structure and construction method thereof
The invention discloses a large-span and large-cantilever space grid structure and a construction method thereof.The large-span and large-cantilever space grid structure comprises space grid assemblies, supporting pieces and anti-bending prestress assemblies, and the space grid assemblies comprise upper chords, lower chords and web members; the anti-bending prestress assembly comprises an upper prestress inhaul cable, a main lower stay cable, a lower longitudinal beam and a lower straight beam. The internal force at the connecting position of an important component and a support joint can be directionally drained or reduced, the internal force distribution is optimized, and the connecting internal force of a support component and a support is reduced, so that the upsetting moment is reduced, and the progressive collapse resistance of the whole structure is improved; the structure is particularly suitable for large load conditions with span larger than or equal to 40 m or overhanging larger than or equal to 20 m, and can be widely applied to conditions with large root stress.
本发明公开一种大跨度、大悬挑空间网格结构及其施工方法，该大跨度、大悬挑空间网格结构包括空间网格组件、支撑件和反弯预应力组件，空间网格组件包括上弦杆、下弦杆和腹杆；反弯预应力组件包括上预应力拉索、主下斜拉索、下纵梁和下直梁；其能定向引流或降低重要构件和支座节点连接处的内力，优化其内力分布，降低支座构件和支座连接内力，从而降低倾覆力矩，提高整体结构的抗连续倒塌能力；尤其适用于跨度≥40m或悬挑≥20m的大荷载情况，可以广泛应用于根部受力较大的情况。
Large-span and large-cantilever space grid structure and construction method thereof
The invention discloses a large-span and large-cantilever space grid structure and a construction method thereof.The large-span and large-cantilever space grid structure comprises space grid assemblies, supporting pieces and anti-bending prestress assemblies, and the space grid assemblies comprise upper chords, lower chords and web members; the anti-bending prestress assembly comprises an upper prestress inhaul cable, a main lower stay cable, a lower longitudinal beam and a lower straight beam. The internal force at the connecting position of an important component and a support joint can be directionally drained or reduced, the internal force distribution is optimized, and the connecting internal force of a support component and a support is reduced, so that the upsetting moment is reduced, and the progressive collapse resistance of the whole structure is improved; the structure is particularly suitable for large load conditions with span larger than or equal to 40 m or overhanging larger than or equal to 20 m, and can be widely applied to conditions with large root stress.
本发明公开一种大跨度、大悬挑空间网格结构及其施工方法，该大跨度、大悬挑空间网格结构包括空间网格组件、支撑件和反弯预应力组件，空间网格组件包括上弦杆、下弦杆和腹杆；反弯预应力组件包括上预应力拉索、主下斜拉索、下纵梁和下直梁；其能定向引流或降低重要构件和支座节点连接处的内力，优化其内力分布，降低支座构件和支座连接内力，从而降低倾覆力矩，提高整体结构的抗连续倒塌能力；尤其适用于跨度≥40m或悬挑≥20m的大荷载情况，可以广泛应用于根部受力较大的情况。
Large-span and large-cantilever space grid structure and construction method thereof
一种大跨度、大悬挑空间网格结构及其施工方法
LIU YUCHEN (author) / SUN SHAODONG (author) / LI JIANFENG (author) / XIAO YAN (author) / YI JUN (author) / WANG YANG (author)
2023-10-03
Patent
Electronic Resource
Chinese
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