三支座30 m PPC空心板梁受弯极限承载力试验  

Test of Flextural Ultimate Carrying Capacity of 30-m Span PPC Hollow Plate Beam Supported by Three Bearings

作　　者：韦立林[1] 陈光强[1] 陆春阳[1] 

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004

出　　处：《桥梁建设》2005年第6期16-18,30,共4页Bridge Construction

摘　　要：通过对三支座30 m PPC空心板梁进行纵向受弯破坏试验,研究其在跨中集中荷载下的破坏形态和极限承载能力,认为采用三支座形式对梁的极限承载能力和抗变形能力无明显影响,其强度和刚度能满足设计要求。Based on the longitudinal flexural failure tests for a 30-m span PPC hollow plate beam supported by three bearings, the failure modes and ultimate carrying capacity of the beam subjected to concentrated load at midspan are studied. It is considered that the utilization of three bearings under the beam has no significant influences on the ultimate carrying capacity and deformation of the beam, and both the strength and rigidity of the beam can satisfy design requirements.

关 键 词：空心板梁 三支座 极限承载力 试验 

分 类 号：U448.212[建筑科学—桥梁与隧道工程] U446.1[交通运输工程—道路与铁道工程]