长期可变荷载作用下预应力混凝土梁的刚度试验研究  

THE EXPERIMENTAL RESEARCH ON THE STIFFNESS OF PRESTRESSED CONCRETE BEAMS UNDER LONG-TERM VARIABLE LOADS

作　　者：潘裕棣[1] 

机构地区：[1]上海建筑科学研究院(集团)有限公司,上海200032

出　　处：《工业建筑》2008年第5期50-53,共4页Industrial Construction

摘　　要：通过对预应力混凝土梁在可变荷载作用下为期两年的长期试验,对其刚度、挠度及截面应变进行实测,依据测试结果,对现行规范长期荷载作用下受弯构件刚度的计算公式进行了验证。Through two year＇s experiment on prestressed beams under variable loads, the stiffness, deflection and cross-section strain of prestressed concrete beams are measured. According to the test results, the calculating formula of national code on the stiffness of fluxural member is verified.

关 键 词：预应力 可变荷载 刚度 试验研究 

分 类 号：TU378.2[建筑科学—结构工程]