广西大学学报(自然科学版)
廣西大學學報(自然科學版)
엄서대학학보(자연과학판)
JOURNAL OF GUANGXI UNIVERSITY (NATURAL SCIENCE EDITION)
2014年
4期
740-748
,共9页
既有钢筋混凝土结构%楼层抗震能力%强度%变形%PushOver 分析
既有鋼觔混凝土結構%樓層抗震能力%彊度%變形%PushOver 分析
기유강근혼응토결구%루층항진능력%강도%변형%PushOver 분석
present reinforced concrete structure%story anti-seismic capability%strength%deforma-tion%PushOver analysis
为了分析结构损伤模式对结构抗震能力评估结果的影响,通过楼层综合抗震能力指数法(SCSCI)和强度与延性法(SD),研究了既有钢筋混凝土框架结构楼层损伤破坏的强度与变形机制,重点指出构件强度与非线性内力、变形的耦合及其对抗震能力的影响,揭示了楼层综合抗震能力指数法评估大震下结构性能的局限。通过一算例的 PushOver 分析进一步检验了 SCSCI 法和 SD 法两种评估方法的有效性,分析结果表明:强度与延性法能预测设防地震和大震下混凝土框架结构的抗震性能,而楼层综合抗震能力指数法仅适用于评估结构抵抗设防地震的能力。借助成熟的软件平台,强度与延性法能用于建筑结构抗震能力的快速评估。
為瞭分析結構損傷模式對結構抗震能力評估結果的影響,通過樓層綜閤抗震能力指數法(SCSCI)和彊度與延性法(SD),研究瞭既有鋼觔混凝土框架結構樓層損傷破壞的彊度與變形機製,重點指齣構件彊度與非線性內力、變形的耦閤及其對抗震能力的影響,揭示瞭樓層綜閤抗震能力指數法評估大震下結構性能的跼限。通過一算例的 PushOver 分析進一步檢驗瞭 SCSCI 法和 SD 法兩種評估方法的有效性,分析結果錶明:彊度與延性法能預測設防地震和大震下混凝土框架結構的抗震性能,而樓層綜閤抗震能力指數法僅適用于評估結構牴抗設防地震的能力。藉助成熟的軟件平檯,彊度與延性法能用于建築結構抗震能力的快速評估。
위료분석결구손상모식대결구항진능력평고결과적영향,통과루층종합항진능력지수법(SCSCI)화강도여연성법(SD),연구료기유강근혼응토광가결구루층손상파배적강도여변형궤제,중점지출구건강도여비선성내력、변형적우합급기대항진능력적영향,게시료루층종합항진능력지수법평고대진하결구성능적국한。통과일산례적 PushOver 분석진일보검험료 SCSCI 법화 SD 법량충평고방법적유효성,분석결과표명:강도여연성법능예측설방지진화대진하혼응토광가결구적항진성능,이루층종합항진능력지수법부괄용우평고결구저항설방지진적능력。차조성숙적연건평태,강도여연성법능용우건축결구항진능력적쾌속평고。
Damage mode of a structure has an important influence on its anti-seismic performance. In order to study this issue, the strength and deformation of present reinforced concrete frame struc-tures was studied by two anti-seismic performance evaluation methods, story compound seismic capa-bility index (SCSCI) and strength and ductility (SD). It was found that member strength interacts closely with nonlinear internal force and deformation, and the strength has much influence on the story anti-seismic performance, which reveals the limitation of SCSCI for great earthquakes. SCSCI and SD were further verified by using an example, and their validity was checked by Push Over analysis. The results indicate that SD can predict the structural anti-seismic performance under the middle and great earthquakes, but SCSCI only suits the former. With the computer program, a rapid anti-seismic performance evaluation can be carried out by SD.