A platform for research: civil engineering, architecture and urbanism
Reinforced method for resisting progressive collapse of suspended dome structure
The invention discloses a reinforced method for resisting progressive collapse of a suspended dome structure. The reinforced method comprises the following steps: S1, determining specific parameters of the structure; s2, performing sector division on the upper reticulated shell; s3, region division is carried out on the lower inhaul cable according to the sector of the upper reticulated shell; and S4, a truss is additionally arranged on the edge of the area, and reinforcement is completed. Compared with the prior art, according to the property of the upper reticulated shell, the lower inhaul cable is subjected to regional division, the trusses are additionally arranged on the edges of the regions, and the lower structure is divided into the independent small blocks. Compared with an original structure, all the small areas are relatively independent, damage to a single small area cannot affect other small areas, and large-area structure collapse cannot be caused. According to the method, progressive-collapse-resistant reinforcement is carried out by changing the structural form, the progressive-collapse-resistant effect is more remarkable, the number of added rod pieces is small, and the optimal effect can be achieved with few materials. The method provides a novel progressive collapse resisting reinforcing method for the Cowser type suspended dome structure.
本发明公开了一种弦支穹顶结构抗连续倒塌加固方法,包括步骤S1:确定结构具体参数;步骤S2:对上部网壳进行扇区划分;步骤S3:依据上部网壳扇区对下部拉索进行区域划分;步骤S4:在区域边缘处增设桁架,完成加固。与现有技术相比,本发明依据上部网壳性质,对下部拉索进行区域划分,在区域边缘增设桁架,将下部结构划分为单独的小区块。相比于原结构,各个小区域之间相对独立,单个小区域的破坏不会影响其他小区域,不会引起大面积的结构倒塌。该方法通过改变结构形式进行抗连续倒塌加固,在抗连续倒塌效果上更加显著,且增加杆件数量较少,能够做到较少材料实现最佳效果。本方法为科威特型弦支穹顶结构提供了新的抗连续倒塌加固方法。
Reinforced method for resisting progressive collapse of suspended dome structure
The invention discloses a reinforced method for resisting progressive collapse of a suspended dome structure. The reinforced method comprises the following steps: S1, determining specific parameters of the structure; s2, performing sector division on the upper reticulated shell; s3, region division is carried out on the lower inhaul cable according to the sector of the upper reticulated shell; and S4, a truss is additionally arranged on the edge of the area, and reinforcement is completed. Compared with the prior art, according to the property of the upper reticulated shell, the lower inhaul cable is subjected to regional division, the trusses are additionally arranged on the edges of the regions, and the lower structure is divided into the independent small blocks. Compared with an original structure, all the small areas are relatively independent, damage to a single small area cannot affect other small areas, and large-area structure collapse cannot be caused. According to the method, progressive-collapse-resistant reinforcement is carried out by changing the structural form, the progressive-collapse-resistant effect is more remarkable, the number of added rod pieces is small, and the optimal effect can be achieved with few materials. The method provides a novel progressive collapse resisting reinforcing method for the Cowser type suspended dome structure.
本发明公开了一种弦支穹顶结构抗连续倒塌加固方法,包括步骤S1:确定结构具体参数;步骤S2:对上部网壳进行扇区划分;步骤S3:依据上部网壳扇区对下部拉索进行区域划分;步骤S4:在区域边缘处增设桁架,完成加固。与现有技术相比,本发明依据上部网壳性质,对下部拉索进行区域划分,在区域边缘增设桁架,将下部结构划分为单独的小区块。相比于原结构,各个小区域之间相对独立,单个小区域的破坏不会影响其他小区域,不会引起大面积的结构倒塌。该方法通过改变结构形式进行抗连续倒塌加固,在抗连续倒塌效果上更加显著,且增加杆件数量较少,能够做到较少材料实现最佳效果。本方法为科威特型弦支穹顶结构提供了新的抗连续倒塌加固方法。
Reinforced method for resisting progressive collapse of suspended dome structure
一种弦支穹顶结构抗连续倒塌加固方法
ZHANG WEIJING (author) / HU YIZHOU (author)
2024-05-10
Patent
Electronic Resource
Chinese
Progressive-Collapse Mechanism of Suspended-Dome Structures Subjected to Sudden Cable Rupture
DOAJ | 2023
|Cable dome structure progressive collapse risk judgment method and system
European Patent Office | 2021
|Methods of Assessing Progressive Collapse-Resisting Capacity
British Library Conference Proceedings | 2014
|Progressive collapse resisting capacity of braced frames
Wiley | 2011
|Progressive Collapse Mechanics of Reticulated Dome under Impact
British Library Conference Proceedings | 2011
|