体外预应力体系正常使用阶段的计算与试验研究
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摘要
本文以能量变分法为理论基础。通过大量的计算分析提出了能量变分法计算体外预应力简支梁体系在外荷载作用下体外索中应力增量的实用简化计算公式。在此基础上研究了体外预应力桥梁正常使用阶段应力、变形和裂缝宽度的计算方法,而且进行了相应的试验研究。
Based on energy variational theory, the paper presents a simplified calculation equation of stress increment for external prestressing free beams. And the paper also gives the calculation method about the stress, deflection and crack width of external prestressing bridges ing employ stage, the corresponding experimental research having been dore.
Based on energy variational theory, the paper presents a simplified calculation equation of stress increment for external prestressing free beams. And the paper also gives the calculation method about the stress, deflection and crack width of external prestressing bridges ing employ stage, the corresponding experimental research having been dore.
引文
1 王彤.体外预应力混凝土梁弹性分析与试验研究.哈尔滨建筑大学硕士论文,1999． 1
2 张树仁.桥梁钢筋混凝土结构按极限状态计算.哈尔滨工业大这出版社,1988． 4
3 金问鲁.预应力混凝土弹性--徐变状态统一计算理论中国铁道出版社,1990． 12
4 陶学康.无粘结预应力的混凝土设计与施工地震出版社,1993． 5
5 交通部.公路钢筋混凝土及预应力混凝土桥涵设计规范.人民交通出版社,1989． 9
6 Antoine Naaman, John Breen. External Prestressing in Bridges. 1990
7 K.H. Tan, A.E. Naaman. Methodology for strength evaluation of externally prestressed beams. USA, 1992
2 张树仁.桥梁钢筋混凝土结构按极限状态计算.哈尔滨工业大这出版社,1988． 4
3 金问鲁.预应力混凝土弹性--徐变状态统一计算理论中国铁道出版社,1990． 12
4 陶学康.无粘结预应力的混凝土设计与施工地震出版社,1993． 5
5 交通部.公路钢筋混凝土及预应力混凝土桥涵设计规范.人民交通出版社,1989． 9
6 Antoine Naaman, John Breen. External Prestressing in Bridges. 1990
7 K.H. Tan, A.E. Naaman. Methodology for strength evaluation of externally prestressed beams. USA, 1992
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