张家界大峡谷玻璃桥加劲梁设计

发布时间：2019-05-23 14:56

【摘要】：张家界大峡谷玻璃桥是一座人行景观桥,该桥采用主缆跨度430m的空间索面地锚式悬索桥。加劲梁采用倒梯形截面钢箱梁,纵、横梁结构,单跨悬吊简支体系。加劲梁跨度373m,高0.6m,中间部分为6.0m标准等宽段,两端各50.0m范围桥面宽度由6.0m线性变化至15.0m。加劲梁主纵梁横桥向间距4.5m,沿桥跨方向通长设置;在变宽段上、下游外侧各增设1道边纵梁。横梁标准间距5.0m。在加劲梁纵梁内灌注混凝土,钢纵、横梁间露空部分铺设钢化夹胶玻璃。通过刚性吊杆将蹦极、溜索平台悬挂于加劲梁下方。加劲梁的纵、横梁在工厂分片制造,在工地组装成整节段,利用缆索吊机在主缆及吊索安装到位后从两边往跨中架设,在跨中合龙。
[Abstract]:Zhangjiajie Grand Canyon Glass Bridge is a pedestrian landscape bridge, which adopts a space cable anchor suspension bridge with a span of 430m. The stiffened beam adopts inverted ladder section steel box girder, longitudinal and transverse beam structure, single span suspension simple support system. The span of stiffened beam is 373m, the height is 0.6m, the middle part is 6.0m standard equal width, and the width of bridge deck varies linearly from 6.0m to 15.0m in the range of 50.0m at each end. The transverse bridge spacing of the main longitudinal beam of the stiffened beam is 4.5 m, and the length along the span direction of the bridge is set, and one side longitudinal beam is added to the outer side of the downstream side of the variable width section. The standard spacing of beams is 5.0 m. Concrete is poured into the longitudinal beam of the stiffened beam, and the exposed part of the steel longitudinal and crossbeam is laid with toughened adhesive glass. Bungee jumping and sliding cable platform are suspended under the stiffening beam through a rigid boom. The longitudinal and transverse beams of the stiffened beam are made in pieces in the factory and assembled into the whole section at the construction site. The cable crane is used to set up the main cable and the sling in the middle of the span from both sides to the middle of the span, and the cable crane is used to set up from both sides to the middle of the span.
【作者单位】：中铁大桥勘测设计院集团有限公司;
【分类号】：U442.5

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