本文選題：高強鋼 + K型偏心支撐��； 參考：《西安建筑科技大學》2013年碩士論文

【摘要】：高強鋼組合K型偏心支撐是耗能梁段使用屈服強度低的鋼材，其余構件采用屈服強度高的鋼材。它綜合了高強鋼承載能力高和偏心支撐鋼框架抗震性能好的優(yōu)點，是一種高效的抗震鋼結構體系，是這兩個研究領域的交叉和融合。 高強鋼組合偏心支撐鋼框架體系是利用耗能梁段耗能，當耗能梁段進入塑性時，其他構件還處于彈性階段。 為了研究這種結構體系的抗震性能，本文主要開展以下工作： （1）在已有的高強鋼和偏心支撐的研究成果的基礎上，考慮耗能梁段長度的不同對結構抗震性能的影響，設計了剪切屈服型和彎曲屈服型兩種1/2縮尺試件。兩種試件分別進行單調加載和低周往復加載試驗； （2）根據試驗現(xiàn)象和采集到的數(shù)據，對試驗結果進行分析。單調加載中得出試件的承載力、抗側剛度和屈服位移；低周往復加載中得出滯回曲線、骨架曲線、剛度退化、延性系數(shù)和耗能能力等； （3）對剪切屈服型和彎曲屈服型兩種試件的抗震性能進行了對比； （4）對循環(huán)加載下的兩種試件通過應變分析說明了試件的破壞形式和偏心支撐鋼框架破壞時各個構件的受力情況； （5）提出了K型偏心支撐鋼框架震后修復的建議。
[Abstract]:K eccentrically braced with high strength steel is the steel with low yield strength in the energy dissipation beam section, and the steel with high yield strength is used in the other members. It combines the advantages of high strength steel bearing capacity and eccentrically braced steel frame with good seismic performance. It is an efficient seismic steel structure system and is the intersection and fusion of these two research fields. The high strength steel composite eccentrically braced steel frame system uses the energy dissipation beam section to consume energy. When the energy dissipation beam section enters the plastic stage, the other members are still in the elastic stage. In order to study the aseismic performance of this kind of structural system, the main work is as follows: (1) based on the existing research results of high strength steel and eccentrically braced, the influence of different length of energy dissipation beam on the seismic performance of the structure is considered. Two types of 1 / 2 scale specimens, shear yield and bending yield, are designed. Two kinds of specimens were subjected to monotone loading and low cycle reciprocating loading respectively. (2) the test results were analyzed according to the experimental phenomena and the collected data. The load-carrying capacity, lateral stiffness and yield displacement of the specimen were obtained by monotonic loading, hysteretic curve, skeleton curve, stiffness degradation, ductility coefficient and energy dissipation capacity were obtained during low-cycle reciprocating loading. (3) the seismic behavior of shear yield type and bending yield type are compared. (4) two kinds of specimens under cyclic loading are analyzed by strain analysis to explain the failure form of the specimen and the stress of each member when the eccentrically braced steel frame is destroyed; (5) the suggestion of repairing K-type eccentrically braced steel frame after earthquake is put forward.
【學位授予單位】：西安建筑科技大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU391

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本文編號：2081942