地震工程与工程振动
地震工程與工程振動
지진공정여공정진동
EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION
2010年
2期
51-58
,共8页
不对称结构%非弹性扭转%地震反应
不對稱結構%非彈性扭轉%地震反應
불대칭결구%비탄성뉴전%지진반응
asymmetric buildings%inelastic torsion%earthquake response
不规则建筑结构在侧向地震荷载作用下由于质量中心和刚度中心的不重合导致平扭耦联反应的发生,使得结构构件的变形需求分布在结构平面内并不一致,从而产生附加的强度和变形需求.尽管不规则建筑结构在地震作用下的扭转问题一直受到研究学者的关注和研究,并取得了很多显著的成果,但仍然存在着一些争议,有待于继续深入研究.本文从结构的分析模型、影响参数及地震动输入等方面回顾总结了平面不规则建筑结构在地震作用下非弹性扭转的研究进展,结合当前的研究工作指出今后研究的发展方向.
不規則建築結構在側嚮地震荷載作用下由于質量中心和剛度中心的不重閤導緻平扭耦聯反應的髮生,使得結構構件的變形需求分佈在結構平麵內併不一緻,從而產生附加的彊度和變形需求.儘管不規則建築結構在地震作用下的扭轉問題一直受到研究學者的關註和研究,併取得瞭很多顯著的成果,但仍然存在著一些爭議,有待于繼續深入研究.本文從結構的分析模型、影響參數及地震動輸入等方麵迴顧總結瞭平麵不規則建築結構在地震作用下非彈性扭轉的研究進展,結閤噹前的研究工作指齣今後研究的髮展方嚮.
불규칙건축결구재측향지진하재작용하유우질량중심화강도중심적불중합도치평뉴우련반응적발생,사득결구구건적변형수구분포재결구평면내병불일치,종이산생부가적강도화변형수구.진관불규칙건축결구재지진작용하적뉴전문제일직수도연구학자적관주화연구,병취득료흔다현저적성과,단잉연존재착일사쟁의,유대우계속심입연구.본문종결구적분석모형、영향삼수급지진동수입등방면회고총결료평면불규칙건축결구재지진작용하비탄성뉴전적연구진전,결합당전적연구공작지출금후연구적발전방향.
The deformation and strength demands in resistant elements of asymmetric buildings are not uniformly dis-tributed due to the inconsistency of the center of mass and the center of rigidity, which results in additional drift and strength demands in critical resistant elements and even damage to buildings. Although extensive researches on the inelastic torsional effect have been conducted, there still exist some aspects on the issue which are essential to un-derstanding and solution of the response of asymmetric buildings. Factors influencing the inelastic torsional effect of asymmetric buildings, such as analytical model, structural properties and ground motion properties are presented and summarized on the basis of a large numbers of research articles and the present work as well as the future work is pointed out, so as to get the further understanding of the inelastic torsional response.
