预应力混凝土设计中不容忽视的问题  

ANINIGNORABLE PROBLEM IN STRUCTURAL DESIGN OF PRESTRESSED CONCRETE

作　　者：郑弦[1] 郑文忠[1] 王英[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,150090

出　　处：《低温建筑技术》2002年第4期22-24,共3页Low Temperature Architecture Technology

基　　金：国家自然科学基金 (5 0 1780 2 6);教育部高等学校骨干教师资助 (10 5 7);黑龙江省青年科学基金 (Q98-12 )资助

摘　　要：针对工程设计中普遍存在的不考虑相邻跨变截面梁形心轴偏差对张拉引起等效力偶的影响这一现象 ,通过计算实例说明形心轴偏差对张拉引起的结构内力及配筋的影响一般是不容忽视的。Aiming at the phenomenon of generally not considering the influence of deflection of centroidal axis on equivalent moment caused by pulling tendons in non-uniform beams when designing structures,a numerical example is used to illustrate that the influence of deflection of centroidal axis on structural internal forces caused by pulling tendons and reinforcements can not be ignored generally.

关 键 词：预应力混凝土 设计 预应力构件 变截面梁 形心轴偏差 弯矩 内力计算 

分 类 号：TU378[建筑科学—结构工程]