浅谈横琴二桥钢桁拱矢跨比的选取  

Selection of Steel Truss Arch Rise-span Ratio for Hengqin Second Bridge

作　　者：任巍峰[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《交通科技》2016年第3期45-47,共3页Transportation Science & Technology

摘　　要：以珠海横琴二桥钢桁拱方案设计为背景,通过参数化分析,建立简化模型,分析对比不同矢跨比下钢桁拱刚度、强度、造价等各项指标。根据得到的数据拟合曲线,综合分析对比得出横琴二桥钢桁拱方案合理的矢跨比。In this paper,taking the design of Hengqin second bridge steel truss arch as the background,through parametric analysis,the simplified models is established and the stiffness,strength and cost of different rise-span ratio of steel truss arch are analyzed and compared.Based on the data obtained in the last fit curve,a comprehensive analysis and comparison of reasonable rise-span ratio for Hengqin second bridge steel truss arch is made.

关 键 词：矢跨比 参数化分析 钢桁拱 

分 类 号：U448.36[建筑科学—桥梁与隧道工程]