北京工业大学学报
北京工業大學學報
북경공업대학학보
JOURNAL OF BEIJING POLYTECHNIC UNIVERSITY
2014年
11期
1660-1665
,共6页
李永梅%周冰%张微敬%李玉占
李永梅%週冰%張微敬%李玉佔
리영매%주빙%장미경%리옥점
钢筋混凝土框架%填充墙%等效斜撑模型%静力弹塑性分析%抗震性能
鋼觔混凝土框架%填充牆%等效斜撐模型%靜力彈塑性分析%抗震性能
강근혼응토광가%전충장%등효사탱모형%정력탄소성분석%항진성능
frame structure%infilled wall%equivalent diagonal bracing model%pushover analysis%seismic performance
现行规范对填充墙框架结构体系抗震设计方法存在不足之处。针对砌体填充墙框架结构水平地震作用下的受力特点,结合填充墙的破坏特征,建立墙框协同作用简化分析的空间等效斜撑力学模型,在保持框架结构质量分布基本不变的情况下,分别对两类填充墙竖向均匀、不均匀布置的带楼板框架结构和无填充墙仅带楼板框架结构进行不同加载模式下的静力弹塑性分析,研究结构的基底剪力-顶点位移关系曲线、不同地震水平作用下结构层间位移角以及塑性铰的发展情况,并对填充墙框架结构规范提供的设计方法进行安全评估。研究结果可为框架结构的抗震设计、评估及加固提供参考。
現行規範對填充牆框架結構體繫抗震設計方法存在不足之處。針對砌體填充牆框架結構水平地震作用下的受力特點,結閤填充牆的破壞特徵,建立牆框協同作用簡化分析的空間等效斜撐力學模型,在保持框架結構質量分佈基本不變的情況下,分彆對兩類填充牆豎嚮均勻、不均勻佈置的帶樓闆框架結構和無填充牆僅帶樓闆框架結構進行不同加載模式下的靜力彈塑性分析,研究結構的基底剪力-頂點位移關繫麯線、不同地震水平作用下結構層間位移角以及塑性鉸的髮展情況,併對填充牆框架結構規範提供的設計方法進行安全評估。研究結果可為框架結構的抗震設計、評估及加固提供參攷。
현행규범대전충장광가결구체계항진설계방법존재불족지처。침대체체전충장광가결구수평지진작용하적수력특점,결합전충장적파배특정,건립장광협동작용간화분석적공간등효사탱역학모형,재보지광가결구질량분포기본불변적정황하,분별대량류전충장수향균균、불균균포치적대루판광가결구화무전충장부대루판광가결구진행불동가재모식하적정력탄소성분석,연구결구적기저전력-정점위이관계곡선、불동지진수평작용하결구층간위이각이급소성교적발전정황,병대전충장광가결구규범제공적설계방법진행안전평고。연구결과가위광가결구적항진설계、평고급가고제공삼고。
There was shortcoming in seismic design of infilled walls-frame structures in the present codes. The mechanical model of spatial infilled frame structure was set up by adopting the equivalent diagonal bracing mode, for which the character applied to the horizontal earthquake action to masonry infilled walls-frame structures can be shown, in combination with the failure mode of infilled walls. Three spatial models of frame structures with the slabs were provided with well-proportioned or disproportional infilled walls vertically, or without infilled walls. And then the pushover analysis of each model was carried out by two common load patterns. Such seismic indicators were analyzed and compared as the relationship curve of base shear force and roof lateral displacement, and plastic hinges distribution under different earthquake criteria. The analysis results can be referred as seismic design, performance evaluation and reinforcement design for frame structures.