- 摘 要
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(1 吉林建筑大學吉林省結構與抗震科技創(chuàng)新中心, 長春 130118; 2 長春博亞建筑設計有限公司, 長春 130021)
[摘要]將足尺寸鋼纖維泡沫混凝土復合墻板與半剛性連接節(jié)點鋼框架組成的鋼框架-墻板結構與空框架結構進行對比,對其分別進行相同試驗條件下的水平擬靜力荷載試驗。通過分析試驗現(xiàn)象和數(shù)據(jù)得到兩組框架的滯回曲線、骨架曲線。結果表明:足尺寸鋼纖維泡沫混凝土復合墻板增強了結構的整體受力性能,鋼框架-墻板結構比空框架結構的耗能能力強、剛度增大、剛度退化緩慢、延性系數(shù)不變、極限承載力提高45%、自振周期降低20%以上,同時半剛性連接的梁柱節(jié)點可以增強結構的整體抗震性能。
[關鍵詞]鋼纖維混凝土; 泡沫混凝土; 鋼框架; 耗能能力; 復合墻板
中圖分類號:TU398-2, TU398-3文獻標識碼:A文章編號:1002-848X(2018)22-0015-06
Study on hysteretic behavior of steel fiber reinforced foam concrete slab filled steel wall frame
Wang Yabo1, Xi Chuanhao2
(1 Structural and Earthquake Resistant Science and Technology Innovation Center of Jilin Province, Jilin Architecture University, Changchun 130118, China; 2 Changchun Boya Architectural Design Co., Ltd., Changchun 130021, China)
Abstract:The steel frame-wallboard structure composed of the full-size steel fiber foam concrete composite wallboard and the semi-rigid joint steel frame was compared with the empty frame structure, and the horizontal quasi-static load test under the same test conditions was carried out separately. The hysteresis curves and skeleton curves of the two sets of frames were obtained by analyzing the experimental phenomena and data. The results show that the steel fiber foam concrete composite wallboard of the full size enhances the overall mechanical performance of the structure. The steel frame-wallboard structure has stronger energy dissipation capacity, increased stiffness, slower stiffness degradation and constant ductility coefficient, compared with the empty frame structure. The ultimate bearing capacity is increased by 45% and the natural vibration period is reduced by more than 20%. At the same time, the semi-rigid connection of beam-column joints can enhance the overall seismic performance of the structure.
Keywords:steel fiber reinforced concrete; foam concrete; steel frame; energy dissipation capacity; composite wallboard
作者簡介:王亞波,碩士,副教授, Email:wangyabo@jlju.edu.cn。