摘要
对某主跨30 m的UHPC人行天桥进行结构计算和有限元分析,验算其承载能力、变形和自振周期等。为适应标准化生产和规模化应用,人行天桥的主梁、墩柱、梯道和坡道等主体结构构件采取节段预制和现场拼装的建造方案。将其与相同跨度和宽度的钢结构箱型梁人行天桥进行对比,分析了全预制装配式UHPC人行天桥结构选型,探讨了UHPC人行天桥的经济性和适用性。
Structural calculations and finite element analyses were conducted for a UHPC pedestrian bridge with a main span of 30 meters to verify its load-bearing capacity,deformation,and natural vibration period,etc.To adapt to standardized production and large-scale application,the main girder,piers,stairway,and ramp of the pedestrian bridge adopted a construction scheme of segmental prefabrication and on-site assembly.It was compared with a steel structure box-type beam pedestrian bridge of the same span and width.The structural selection of the fully prefabricated assembled UHPC pedestrian bridge was analyzed,and the economic and applicability of UHPC pedestrian bridges were discussed.
作者
王彪
孙宏涛
朱传成
刘俊
WANG Biao;SUN Hong-tao;ZHU Chuan-cheng;LIU Jun(Huaxin Cement Co.,Ltd.,Wuhan,Hubei,430205,China;Huaxin Chaokelong New Building Material Technology(Huangshi)Co.,Ltd.,Huangshi,Hubei,435000,China;Beijing General Municipal Engineering Design&Research Institute Co.,Ltd.,Beijing,100082,China;Hubei Wutian Expressway Investment and Construction Co.,Ltd.,Wuhan,Hubei,430010,China)
出处
《建材技术与应用》
2025年第4期51-55,共5页
Research and Application of Building Materials
关键词
UHPC
人行天桥
箱型梁
结构分析
经济性
UHPC
pedestrian bridge
box girder
structural analysis
economic feasibility
