摘要
总结国内外关于无粘结预应力筋的极限应力的研究现状,针对我国行业标准《无粘结预应力混凝土结构技术规程》中对无粘结预应力筋的极限应力设计取值规定的不足,根据大量的试验数据,提出适用于桥梁工程的无粘结预应力混凝土上部结构多种截面形式无粘结筋极限应力增量的实用简化计算方法。
It presents the state of the reinforcing ultimate stress researches at rome and abroad. According to the shortcoming in the present code, based on the test result, a reinforcing ultimate stress formula for various cross - section in the bridge construction is established. Compared, the suggested formulas are verified with the experinented results and are simply into practice.
出处
《黑龙江工程学院学报》
CAS
2005年第4期13-17,共5页
Journal of Heilongjiang Institute of Technology
基金
黑龙江省自然科学基金资助项目(E0327)
关键词
无粘结预应力混凝土结构
极限应力增量
等效塑性区
unbonded partially prestressed concrete
ultimate stress of tendon
equivalent plastic zone
