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Structure Bearing Capacity Testing and Evaluation of Existing Bridges
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作者 Huigeng Liu Zonglin Zhou 《Journal of World Architecture》 2023年第1期30-34,共5页
The bearing capacity testing and evaluation of the existing bridge engineering structure is not only the key to clarify its structural quality and safety performance,but it also can lay a solid foundation for subseque... The bearing capacity testing and evaluation of the existing bridge engineering structure is not only the key to clarify its structural quality and safety performance,but it also can lay a solid foundation for subsequent repairs and maintenance work.To ensure the bearing capacity,durability and reliability of existing bridges,this paper analyzes the importance and methods of testing and evaluation of structural bearing capacity of a bridge.This analysis aims to provide scientific reference for the quality assessment and subsequent repair and maintenance of existing bridge engineering structures. 展开更多
关键词 Existing bridge Bridge structure bearing capacity detection bearing capacity evaluation
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A new method of testing pile using dynamic P-S-curve made by amplitude of wave train 被引量:1
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作者 HU Yi-li(胡毅力) +9 位作者 XU Jun(许峻) DUAN Yong-kong(段永康) XU Zhao-yong(许昭永) YANG Run-hai(杨润海) ZHAO Jin-ming(赵晋明) 《Acta Seismologica Sinica(English Edition)》 CSCD 2004年第6期725-734,共11页
A new method of detecting the vertical bearing capacity for single-pile with high strain is discussed in this paper. A heavy hammer or a small type of rocket is used to strike the pile top and the detectors are used ... A new method of detecting the vertical bearing capacity for single-pile with high strain is discussed in this paper. A heavy hammer or a small type of rocket is used to strike the pile top and the detectors are used to record vibra- tion graphs. An expression of higher degree of strain (deformation force) is introduced. It is testified theoretically that the displacement, velocity and acceleration cannot be obtained by simple integral acceleration and differential velocity when long displacement and high strain exist, namely when the pile phase generates a whole slip relative to the soil body. That is to say that there are non-linear relations between them. It is educed accordingly that the force P and displacement S are calculated from the amplitude of wave train and (dynamic) P-S curve is drew so as to determine the yield points. Further, a method of determining the vertical bearing capacity for single-pile is dis- cussed. A static load test is utilized to check the result of dynamic test and determine the correlative constants of dynamic-static P(Q)-S curve. 展开更多
关键词 amplitude of wave train dynamic P-S curves detecting of bearing capacity of a pile
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