济南印象城过街天桥方案设计与结构计算  

Schematic Design and Structural Calculation for Overpasses of Jinan Impression City

作　　者：栾兆健 徐淑颂 王国炜 Luan Zhaojian;Xu Shusong;Wang Guowei(Shandong Rail Transit Survey&Design Institute Co.,Ltd.,Jinan 250101,China;Jinan Hualu Zhongjiao Highway Design Co.,Ltd.,Jinan 250014,China)

机构地区：[1]山东轨道交通勘察设计院有限公司,济南市250101 [2]济南华鲁中交公路设计有限公司,济南市250014

出　　处：《北方交通》2024年第12期1-6,11,共7页Northern Communications

摘　　要：钢箱梁人行天桥具有跨越能力强、建筑高度低、截面小、自重轻等特点,如果边中跨比小,导致边支座出现负反力,需要梁端配重。文章以济南印象城天桥为研究案例,根据现有道路及行人特点进行了方案设计,对小边跨人行天桥边跨配重进行设计,同时进行了人行天桥上、下部和梯道等结构的验算。通过计算分析,证明了天桥的结构受力均符合相关规范要求,且具有足够的安全储备。The steel box beam pedestrian overpass has the characteristics of strong crossing capacity,low building height,small cross section,and light self weight and so on.If the ratio of side to main span is small,it may cause negative reaction force on the side supports and require the beam-end counter weight.Taking the overpass of Jinan impression city as the research case,the schematic design is made according to the characteristics of existing roads and pedestrians.The side span counter weight for the small side span pedestrian overpass is designed,and meanwhile the checking calculation on the structures of the pedestrian overpass like the upper and lower parts,staircases and so on is carried out.Through the calculation and analysis,it proves that the structural stress of the overpass meets the relevant code requirement and has sufficient safety reserve.

关 键 词：人行天桥 小边跨 受力分析 

分 类 号：U442[建筑科学—桥梁与隧道工程]