A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Multi-tower suspension bridge combined middle tower, design method and system
The invention discloses a combined middle tower of a multi-tower suspension bridge and a design method and system. The combined middle tower comprises rectangular tower columns and rigid auxiliary towers, wherein the rectangular tower columns and the rigid auxiliary towers are arranged on a middle foundation bearing platform at intervals in parallel in the transverse bridge direction. The rigid auxiliary tower and the rectangular tower column are fixed through a sacrificial rigid connecting piece; the height of the rigid auxiliary tower is lower than that of the rectangular tower column; an isosceles triangle is formed by the rigid auxiliary tower and the upper surface of the foundation platform in the longitudinal direction of the bridge; the overall structural rigidity of the multi-tower suspension bridge in the daily use stage is improved, and deformation of the bridge towers and the main beams is reduced; through reasonable design of the length and the section size of the sacrifice rigid connecting piece, the sacrifice rigid connecting piece can reach the extreme load under the extreme load working condition, buckling instability occurs, the rigid auxiliary tower and the rectangular tower column are disconnected, the anti-pushing rigidity of the rectangular tower column is reduced, and then the anti-sliding stability of a main cable in a middle tower saddle is guaranteed; the anti-skid safety of the main cable under the daily working condition and the extreme working condition can be considered.
本发明公开了一种多塔悬索桥组合中塔、设计方法及系统，所述组合中塔包括沿横桥向平行间间隔设于中间基础承台上的矩形塔柱和刚性辅助塔；所述刚性辅助塔与所述矩形塔柱之间通过可牺牲刚性连接件固定；所述刚性辅助塔的高度低于所述矩形塔柱的高度；在桥梁纵向所述刚性辅助塔与基础承台的上表面形成等腰三角形；所述多塔悬索桥在日常使用阶段整体结构刚度提升，减小桥塔及主梁变形；通过合理设计可牺牲刚性连接件的长度及截面尺寸，使其在极端荷载工况下达到极限荷载，并发生屈曲失稳，刚性辅助塔和矩形塔柱之间断开，使矩形塔柱的自身抗推刚度降低，进而保证主缆在中塔鞍座的抗滑稳定性；本发明能够兼顾日常工况和极端工况下的主缆抗滑安全性。
Multi-tower suspension bridge combined middle tower, design method and system
The invention discloses a combined middle tower of a multi-tower suspension bridge and a design method and system. The combined middle tower comprises rectangular tower columns and rigid auxiliary towers, wherein the rectangular tower columns and the rigid auxiliary towers are arranged on a middle foundation bearing platform at intervals in parallel in the transverse bridge direction. The rigid auxiliary tower and the rectangular tower column are fixed through a sacrificial rigid connecting piece; the height of the rigid auxiliary tower is lower than that of the rectangular tower column; an isosceles triangle is formed by the rigid auxiliary tower and the upper surface of the foundation platform in the longitudinal direction of the bridge; the overall structural rigidity of the multi-tower suspension bridge in the daily use stage is improved, and deformation of the bridge towers and the main beams is reduced; through reasonable design of the length and the section size of the sacrifice rigid connecting piece, the sacrifice rigid connecting piece can reach the extreme load under the extreme load working condition, buckling instability occurs, the rigid auxiliary tower and the rectangular tower column are disconnected, the anti-pushing rigidity of the rectangular tower column is reduced, and then the anti-sliding stability of a main cable in a middle tower saddle is guaranteed; the anti-skid safety of the main cable under the daily working condition and the extreme working condition can be considered.
本发明公开了一种多塔悬索桥组合中塔、设计方法及系统，所述组合中塔包括沿横桥向平行间间隔设于中间基础承台上的矩形塔柱和刚性辅助塔；所述刚性辅助塔与所述矩形塔柱之间通过可牺牲刚性连接件固定；所述刚性辅助塔的高度低于所述矩形塔柱的高度；在桥梁纵向所述刚性辅助塔与基础承台的上表面形成等腰三角形；所述多塔悬索桥在日常使用阶段整体结构刚度提升，减小桥塔及主梁变形；通过合理设计可牺牲刚性连接件的长度及截面尺寸，使其在极端荷载工况下达到极限荷载，并发生屈曲失稳，刚性辅助塔和矩形塔柱之间断开，使矩形塔柱的自身抗推刚度降低，进而保证主缆在中塔鞍座的抗滑稳定性；本发明能够兼顾日常工况和极端工况下的主缆抗滑安全性。
Multi-tower suspension bridge combined middle tower, design method and system
一种多塔悬索桥组合中塔、设计方法及系统
WANG ZHIPENG (author) / CHAI SHENGBO (author) / WANG MAOQIANG (author) / WANG XIULAN (author) / WENG XU (author) / DING WENHUI (author) / HUANG KEXIAO (author) / OU LINSHENG (author) / LAN XIONG (author)
2024-11-01
Patent
Electronic Resource
Chinese
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