西南科技大学学报
西南科技大學學報
서남과기대학학보
Journal of Southwest University of Science and Technology
2015年
3期
40-46
,共7页
交叉支撑%非线性%水平加载%Push-over分析%抗震性能
交扠支撐%非線性%水平加載%Push-over分析%抗震性能
교차지탱%비선성%수평가재%Push-over분석%항진성능
Cross sustaining%Nonlinear%Horizontal loading%Push-over analysis%Seismic performances
在验证了SAP2000建立标准模型合理的基础上,建立了3种不同布置形式的局部带方钢管交叉支撑混凝土框架结构模型,采用Push-over分析方法,对其抗震性能进行分析. 结果表明:采用加交叉支撑后的框架结构在两种侧向水平加载模式下结构达到性能点时基底剪力均增大;结构在罕遇地震下的变形能力有所改善,抗震性能提高;采用加方钢管交叉支撑的部位,梁的承载能力得到了提高,底层柱需要采取加强措施以达到强柱弱梁的破坏机制,进而提高结构的抗震性能.
在驗證瞭SAP2000建立標準模型閤理的基礎上,建立瞭3種不同佈置形式的跼部帶方鋼管交扠支撐混凝土框架結構模型,採用Push-over分析方法,對其抗震性能進行分析. 結果錶明:採用加交扠支撐後的框架結構在兩種側嚮水平加載模式下結構達到性能點時基底剪力均增大;結構在罕遇地震下的變形能力有所改善,抗震性能提高;採用加方鋼管交扠支撐的部位,樑的承載能力得到瞭提高,底層柱需要採取加彊措施以達到彊柱弱樑的破壞機製,進而提高結構的抗震性能.
재험증료SAP2000건립표준모형합리적기출상,건립료3충불동포치형식적국부대방강관교차지탱혼응토광가결구모형,채용Push-over분석방법,대기항진성능진행분석. 결과표명:채용가교차지탱후적광가결구재량충측향수평가재모식하결구체도성능점시기저전력균증대;결구재한우지진하적변형능력유소개선,항진성능제고;채용가방강관교차지탱적부위,량적승재능력득도료제고,저층주수요채취가강조시이체도강주약량적파배궤제,진이제고결구적항진성능.
After verifying the model which was established by SAP 2000 was reasonable , three different ar-rangement concrete frame structure models were established , which were supported by little square steel , and set reasonable parameters for Push -over analysis .Analysis results show that performance points of base shear increased for adding cross support structure in two lateral horizontal loading modes .Deforma-tion of the structure the deformation ability were improved under severe earthquake , seismic ability raises . The carrying capacity of the beams have been improved which are in the site of adding square steel cross braces.But the columns which are in the bottom need to be taken to strengthen measures to achieve the destruction of the strengthen column weaken beam failure mode to improve the seismic performance of the structure .
