| 1. | Theory of post - tensioned prestressed concrete beams with bond 后张有粘结预应力连续梁的分析原理 |
| 2. | Static and dynamic testing - based evaluation of load - carrying capacity for a prestressed concrete continuous bridge with nine - spans 基于静动力测试的多跨预应力连续梁桥承载力评估 |
| 3. | Then , focusing on the construction technology of twice pre - stressed continuous beam , the structure analysis methods in this phase is introduced 二次预应力连续梁由于其施工工艺的独特性,必然会带来结构分析上的一些差异。 |
| 4. | ( 4 ) the difference of the constraint conditions makes the second moment in prestressed frames less than that in the prestressed beams ( 4 )约束条件的不同使单层两跨预应力混凝土框架梁中的次弯矩要远小于两跨的预应力连续梁。 |
| 5. | Further more , some factors , which may affect those characteristics , are full investigated , which can provide some extent help for the design and construction 另外本文还研究了影响二次预应力连续梁的这些特点的一些影响因素,这对设计和施工将具有一定的意义。 |
| 6. | Its effect factors are investigated by numerical examples in this thesis , which can provide reference on design and research of twice - pretressed continuous beam 另外通过数值计算的方法,研究了影响这种内力重分布和应力重分布的主要因素,为二次预应力连续梁这一新型结构的设计和研究提供参考。 |
| 7. | In this thesis , the primary principles and construction technology of twice pre - stressed composite structure are introduced based on the experimental study on a two - span twice - prestressed continuous beam 并通过一根两跨二次预应力连续梁的制作,介绍二次预应力组合结构的基本原理和施工工艺等。 |
| 8. | To the prestressed concrete continues beam , considerable experiments have been finished and nice achievements have been acquired at chongqing jianzhu university ( renamed chongqing university since the year 2000 ) in these years 对预应力连续梁,近年来重庆建筑大学一做了大量的足尺构件的试验研究,并取得了令人满意的研究结果。 |
| 9. | Throw the research we can get the performance of the joint of the unbond precast and pretressed continuous beam and how the moment redistributes . we got the conclusion that compare the monolithic prestressed continuous beam , the unbond precast and pretressed continuous beam has short amplitude modulation capacity 得到预制预应力连续梁接缝处的受力性能,内力重分布的表现形式,并认为在极限荷载下预制预应力连续梁的调幅能力低于整浇式连续梁等特性。 |
| 10. | Based on the linear creep theory and deformation coordination principle , the calculation method and computing formulas about the inner force redistribution and the stress redistribution are investigated in this thesis , the validity of this method is demonstrated by comparison the calculated results with the tested results 基于线性徐变理论和变形协调原理,本文研究了二次预应力连续梁的徐变内力重分布和徐变应力重分布的计算理论和计算方法,并与试验结果进行比较,以求验证本文方法的可行性。 |