- 摘 要
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（西安建筑科技大學土木工程學院， 西安 710055）
［摘要］為研究不同配鋼形式的型鋼混凝土（SRC）異形柱框架的抗震性能，對兩榀框架模型進行低周反復加載試驗，獲得其破壞形態(tài)，分析其滯回曲線、骨架曲線、承載力、延性、耗能能力、剛度及累積損傷等特性。結(jié)果表明：SRC異形柱框架破壞時形成梁鉸機制，符合“強柱弱梁”的抗震設計要求；與空腹式配鋼相比，實腹式配鋼的SRC異形柱框架抗震性能更為優(yōu)越，承載力、延性和彈性剛度均顯著提高，抗倒塌能力和耗能能力增強，但剛度退化和累積損傷卻略微嚴重。
［關鍵詞］配鋼形式； 型鋼混凝土； 異形柱框架； 抗震性能； 擬靜力試驗
中圖分類號：TU398+.2文獻標識碼：A文章編號：1002-848X(2016)23-0050-05
Experimental comparison of seismic behaviors of steel reinforced concrete frames with special-shaped columns of different steel reinforcements
Liu Zuqiang, Xue Jianyang, Zhao Hongtie
(School of Civil Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China)
Abstract:In order to study the seismic behaviors of steel reinforced concrete (SRC) frames with special-shaped columns of different steel reinforcements, two pieces of frame models were tested under low cyclic reversed loading to obtain the failure pattern and analyze the mechanical behaviors such as hysteretic loop, skeleton curve, carrying capacity, ductility, energy dissipation, stiffness and accumulative damage. The results show that the SRC frames with special-shaped columns form the beam hinge mechanism at destruction, which accords with the seismic design requirement of “strong column and weak beam”. Compared with the lattice steel reinforcement, seismic performance of SRC frame with special-shaped columns of solid steel reinforcement is more superior. Bearing capacity, ductility and elastic stiffness significantly increase, and anti-collapse ability and energy dissipation ability enhance, but stiffness degradation and damage accumulation are slightly worse.
Keywords:steel reinforcement; steel reinforced concrete; frame with special-shaped columns; seismic behavior; quasi-static test
*國家自然科學基金項目（51308444，50978217），陜西省自然科學基礎研究基金（2014JQ7288），陜西省教育廳科研計劃項目（16JK1464），西安建筑科技大學創(chuàng)新團隊資助計劃和青年科技基金（QN1408）。
作者簡介：劉祖強，副教授， Email: liuzuqiang0081@126.com。
