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两跨预应力混凝土连续梁的试验分析
EXPERIMENTS AND ANALYSIS OF TWO-SPNA PRESTRESSED CONCRETE BEAMS
【摘要】 根据4根有粘结预应力混凝土两跨连续梁的试验和分析,研究了其次弯矩和内力重分布的特点,提出了极限强度计算中的弯矩调幅和使用荷载作用下抗裂性能控制方法的建议。
【Abstract】 In this paper, based on the experiments and analysis of four bonded prestressed concrete two - span continuous beams, the characteristics of secondary moment and internal force redistribution are investigated. The suggestions of moment ampli- tude modulation in ultimate strength computation and the control method for cracking behavior under service loading are pre- sented.
【关键词】 预应力混凝土连续梁;
次弯矩;
内力重分布;
试验分析;
【Key words】 prestressed concrete continuous beam; secondary moment; internal force redistribution; experiments and analysis;
【Key words】 prestressed concrete continuous beam; secondary moment; internal force redistribution; experiments and analysis;
【基金】 国家自然科学基金
- 【文献出处】 土木工程学报 , 编辑部邮箱 ,1999年02期
- 【分类号】TU378
- 【被引频次】46
- 【下载频次】361