预应力张拉对桥梁结构应力影响的试验研究  

TESTING STUDY ON EFFECT OF PRESTRESSED STRETCH UPON THE BRIDGE STRUCTURE STRESS

作　　者：冯伯林[1] 王晓晖[1] 谢桂华[2] 陈志明 

机构地区：[1]河海大学交通与海洋工程学院,南京210098 [2]苏州市交通工程质量监督站.苏州,215003 [3]江苏省水利工程建设局,南京210000

出　　处：《安徽建筑工业学院学报（自然科学版）》2003年第2期8-11,共4页Journal of Anhui Institute of Architecture(Natural Science)

摘　　要：通过对某公路桥三跨变截面“T”型预应力混凝土连续梁的试验研究,分析了不同的预应力张拉顺序和张拉工艺对桥梁混凝土应力及钢筋轴力的影响,提出了多榀多跨预应力混凝土变截面“T”型连续梁结构的合理施工工艺,对同类铁路、公路桥、立交桥等设计与施工均有参考价值。This paper tested the three- stride T- typed prestressed concrete continuous beam with a variable section of certain highway bridge; analyzed the effect of different order and technology of stretch upon the bridge concrete stress and steel axis force, and new theories about reasonable construction technology of multi - segment and multi - stride T - typed prestressed concrete continuous beam with a variable section were thus proposed, which could be regarded as a reference for related design and construction of railway, highway bridge and overpass.

关 键 词：公路桥 张拉 连续梁式桥梁 预应力混凝土 

分 类 号：U448.14[建筑科学—桥梁与隧道工程]