张家界大峡谷玻璃桥桥塔设计

张家界大峡谷玻璃桥为主跨430 m的空间索面人行悬索桥,集旅游、景观、娱乐、休闲于一体。考虑张家界“峰林”地貌,桥塔采用圆环形钢筋混凝土独柱结构,塔柱间不设横梁。西北侧、西南侧、东北侧、东南侧塔柱高度分别为40.65,40.65,37.15,40.15 m。东、西侧两塔柱间的横向中心距分别为50 m和45 m,每根塔柱均采用4根?1.2 m的人工挖孔灌注桩基础。桥塔总体静力、稳定性和细部结构分析结果表明:结构受力合理,安全可靠。

Design of Towers of Zhangjiajie Glass Bridge in Zhangjiajie Grand Canyon

The Zhangjiajie Glass Bridge in Zhangjiajie Grand Canyon is a pedestrian suspension bridge with spatial cable planes.The bridge has a main span of 430 m,which fulfills multiple purposes of sightseeing,landscaping,recreation and leisure.To be in harmony with the stone forests in Zhangjiajie,the towers are designed as circular mono-column reinforced concrete structures with heights of 40.65(northwest),40.65(southwest),37.15(northeast)and 40.15 m(southeast),and there is no cross beam between the two columns on each end.The transverse center-to-center distances of the two west columns and the two east columns are 45 m and 50 m,respectively.The foundation of each tower comprises 4,1.2 m-diameter bored piles with man-digging holes.The analysis of the overall static force,stability of the towers and the structural details demonstrates that the load bearing behavior of the bridge is rational and the bridge structure is safe and reliable.