摘要
为客观认识各公式的合理性,对380根简支梁板和连续梁板进行了仿真试验,同时搜集整理了中国建筑科学研究院所做的35根简支梁的试验结果,将国内外预应力混凝土梁板中无粘结筋极限应力增量公式计算值与这415根试验梁板的实测结果进行对比分析,结果表明公式更具合理性.
In order to verify the rationality of formulas in literatures, which were used for calculating the ulti- mate stress increment in unbonded tendons in prestressed concrete beams, simulations on 380 simple supported beams and continuous beams were completed; and the results of 35 simple supported beams obtained by China Academy of Building Research were collected. Then the results of the calculation formulas at home and abroad were compared with the test results of these 415 beams and slabs. It is indicated that the formulas proposed by the author are more rational than the others.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2009年第10期7-13,共7页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(50178026)
教育部新世纪优秀人才支持计划资助项目(教科司[2005]290号)
关键词
预应力混凝土
梁板
无粘结筋
极限应力
增量
prestressed concrete
beams and slabs
unbonded tendon
ultimate stress
increment
