| 不同跨高比对多层钢框架内填混凝土深梁结构抗震性能影响 |
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| 引用本文： | 袁晓洒,,张力,,刘方,,贾腾飞,贾星亮,.不同跨高比对多层钢框架内填混凝土深梁结构抗震性能影响[J].世界地震工程,2021,0(1):034-40. |
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| 作者姓名： | 袁晓洒 张力 刘方 贾腾飞 贾星亮 |
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| 作者单位： | 1. 西京学院 土木工程学院,陕西 西安 710123;2. 西京学院 陕西省混凝土结构安全与耐久性重点实验室,陕西 西安 710123;3. 西安基准方中建筑设计院,陕西 西安 710054 |
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| 摘 要： | 为了研究不同跨高比多层钢框架内填混凝土深梁结构的抗震性能，在钢框架内填混凝土深梁滞回性能试验的基础上，利用ABAQUS对六层纯钢框架（结构一）、钢框架内填跨高比为2混凝土深梁结构（结构二）和钢框架内填跨高比为0.75混凝土深梁结构（结构三）进行弹塑性时程分析。结果表明:内填混凝土深梁使结构整体刚度明显增大；在地震波的作用下，结构二的最大顶点位移降低可达58.3%，结构三的最大顶点位移降低可达89.3%，内填混凝土深梁，结构的抗侧移性能得到了极大改善，且随着深梁跨高比的减小而大幅度提升；结构二滞回曲线饱满，呈现纺锤形，混凝土深梁充分起到了第一道防线作用。经济合理的钢框架内填混凝土深梁结构具有一定的工程应用价值。
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| 关 键 词： | 混凝土深梁 钢框架 弹塑性时程分析 抗侧移性能 抗震性能 |
Influence of span-depth ratios on the seismic performance of the in-filled concrete deep-beam structure in multi-storey steel frames |
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| YUAN Xiaosa,' target="_blank" rel="external">,ZHANG Li,' target="_blank" rel="external">,LIU Fang,' target="_blank" rel="external">,JIA Tengfei,JIA Xingliang,' target="_blank" rel="external">.Influence of span-depth ratios on the seismic performance of the in-filled concrete deep-beam structure in multi-storey steel frames[J].World Information On Earthquake Engineering,2021,0(1):034-40. |
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| Authors: | YUAN Xiaosa " target="_blank">' target="_blank" rel="external"> ZHANG Li " target="_blank">' target="_blank" rel="external"> LIU Fang " target="_blank">' target="_blank" rel="external"> JIA Tengfei JIA Xingliang " target="_blank">' target="_blank" rel="external"> |
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| Institution: | 1. School of Civil Engineering,Xijing University,Xi’an 710123, China;2. Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University,Xi’an 710123, China;3. Xi’an Jizhun Fangzhong Architectural Design Firm,Xi’an 710054, China |
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| Abstract: | To study the sesmic performance of the in-filled concrete deep beams in multi-storey steel frames with different span-depth ratios, ABAQUS models are made based the cyclic test to carried out the elastic-plastic time-history analyses for the six-storey pure steel frame (Structure 1), the steel frame with an in-filled concrete deep-beam structure whose span-depth ratio is 2 (Structure 2) and the steel frame with an in-filled concrete deep-beam structure whose span-depth ratio is 0.75 (Structure 3). It is shown from the results that the in-filled concrete deep beams have made the whole stiffness of the structure increase remarkably. Influenced by seismic waves, the maximum top displacement of Structure 2 can be reduced by 58.3% while that of Structure 3 by 89.3%. It is obvious that the anti-lateral displacement performance of the in-filled concrete deep beams has been improved significantly and upgraded with a large margin along by reducing the span-depth ratios of the deep beam. The hysteretic curve of Structure 2 is plump and spindle-shaped. There is no doubt that the concrete deep beams have fully functioned as the first defensive line. The economic and rational steel frame with an in-filled concrete deep-beam structure is of a certain value in engineering applications. |
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| Keywords: | concrete deep beam steel frame elastic-plastic time-history analysis anti-lateral displacement property anti-seismic property |
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