下承式钢桁梁桥在浙江省公路桥梁中的适用性及合理结构选型分析  

Analysis of Applicability and Reasonable Structure Selection of the Through Steel Truss Bridge in Zhejiang Highway Bridges

作　　者：何小军 傅科奇 王成树 HE Xiao-jun;FU Ke-qi;WANG Cheng-shu(Zhejiang Provincial Institute of Communications Planning,Design&Research Co.Ltd,Hangzhou 310000,China;Zhejiang Highway&Water Transportion Engineering Consulting Co.,Hangzhou 310000,China)

机构地区：[1]浙江省交通规划设计研究院有限公司,杭州310000 [2]浙江公路水运工程咨询有限责任公司,杭州310000

出　　处：《浙江交通职业技术学院学报》2020年第2期1-8,共8页Journal of Zhejiang Institute of Communications

摘　　要：针对下承式钢桁梁在浙江省内新建或改扩建公路工程中的适用条件、适用跨径需求等进行分析;并结合公路桥梁活载占比小,桥梁断面宽等特点,在适用跨径范围进行合理结构型式选择,提出更适用于公路工程的下承式钢桁梁桥结构体系。提出借鉴铁路钢桁梁桥设计经验,编制合理跨径范围内适用于各种公路桥梁断面的通用图的设想,以提高钢桁梁桥在省内公路工程应用的标准化和工业化程度。Based on the analysis of the applicable conditions and the requirements of the applicable span of the through steel truss girder in the new or expanded highway project in Zhejiang Province,according to the characteristics of the small proportion of live load and the wide cross-section of highway bridges,the reasonable structure selection is carried out in the applicable span range,and the structure system of the through steel truss girder bridge which is more suitable for highway projects is proposed.The design experience of the railway steel truss bridge for reference is proposed in order to improve the standardization and industrialization of the application of steel truss bridge in the highway engineering,it is suggested to draw up the general drawing applicable to various highway bridge sections within the reasonable span.This paper provides a reference for the application and popularization of the structure in highway engineering bridges in Zhejiang province.

关 键 词：下承式钢桁梁 公路桥梁 适用性 合理结构选型 

分 类 号：U448.211[建筑科学—桥梁与隧道工程]