无粘结部分预应力混凝土叠合梁变形计算方法  

EXPERIMENTAL RESEARCH ON CALCULATION OF DEFLECTION OF UNBONDED PARTIALLY PRESTRESSED COMPOSITE BEAMS

作　　者：朱尔玉[1] 

机构地区：[1]北方交通大学

出　　处：《土木工程学报》1999年第2期75-80,共6页China Civil Engineering Journal

基　　金：大连理工大学海岸和近海工程国家重点实验室基金;山东省教委项目资助

摘　　要：给出了２０根矩形截面无粘结部分预应力混凝土叠合梁（其中２根为对比粱）短期变形（或刚度）的试验结果。在此基础上，结合无粘结部分预应力混凝土梁及普通混凝土叠合梁的已有成果，提出了与混凝土结构设计规范［１］相对应的一套变形计算公式。试验结果表明，这些公式计算精度较高，可满足工程设计要求。This paper presents the experimental results of the deflection of 20 unbonded partially prestressed concrete composite beams with rectangular crosssections. According to the research results of unbonded partially prestressed concrete beams and reinforced concrete composite beams, a set of deflection formulas of unbonded partially prestressed concrete composite beams is proposed, which link up with the Chinese Code~[1]. Compared with the experimental results, the suggested formulas are high in precision, which can be directly used in engineering design.

关 键 词：无粘结 部分预应力 混凝土叠合梁 变形 计算 

分 类 号：TU378.801[建筑科学—结构工程]