摘要
提出拉-压预应力混凝土结构定义;根据预压控制应力不大于比例极限,在设计荷载作用下预压钢管应力取值等于强度设计值的原则,确立了预压元件控制应力;根据有关约束条件,推导了预拉应力筋Ap、预压应力筋AT、拉区非预应力筋AS和压区非预应力筋A'S的匹配关系。
The definition of tension-compression prestressed concrete structures was brought.Forms control stress of pre-compression control stress according to principle of control stress value not to exceed proportion stress and pre-compression tube stress equal to the strength,on the basis of relative control condition.discusses the matching of tendon area（AP）,ofpre-compression component area（AT）.common steel area of tension-section（As）,and common steel area of compression section（A＇s）and presents design process and method of tension-compression prestressed concrete structures.
出处
《中外建筑》
2005年第4期121-122,共2页
Chinese & Overseas Architecture
关键词
拉-压预应力
混凝土
控制应力
匹配关系
tension-compression prestress,concrete,control stress：matching
