我国公路简支钢板梁桥合理截面的探讨  

Research of Reasonable Girder Sections of Simply-Supported Steel Plate Girder Highway Bridges in China

作　　者：吴冲[1] 

机构地区：[1]同济大学,上海200092

出　　处：《桥梁建设》2004年第6期35-38,共4页Bridge Construction

摘　　要：根据我国道路结构和公路荷载特点,对简支钢板梁桥的横断面布置、主梁截面形式、合理主梁高度和主梁跨径进行分析研究。给出了适合于我国典型道路构造的公路简支钢板梁桥的恒载弯矩和车辆荷载弯矩与跨径关系的近似公式以及应力控制设计的经济梁高和主梁挠度。In the light of the features of road structures and highway loads in China, this paper analyzes and studies the arrangement of the main girder cross sections, types of the cross sections, reasonable girder depth and span length of the simply-supported steel plate girder highway bridges in the country, provides the approximate formulas of the dead load and traffic load bending moments related to the span length for the said type of the highway bridges suitable for the typical road structures, and also the design of economic girder depth and main girder deflection controlled by stresses.

关 键 词：公路桥梁 钢桥 工形梁 板梁 箱形梁 挠度 

分 类 号：U445.1[建筑科学—桥梁与隧道工程]