- 摘 要
-
（中國航空規(guī)劃建設(shè)發(fā)展有限公司， 北京 100120）
［摘要］中國婦女兒童博物館南部共6層，北部含4個夾層共10層，建筑最高點標(biāo)高38.7m。采用鋼筋混凝土框架結(jié)構(gòu)，曲面建筑造型采用焊接H型鋼，屬于平面、豎向多項不規(guī)則的復(fù)雜高層鋼-混凝土組合結(jié)構(gòu)。采用SATWE，ETABS程序進(jìn)行抗震計算分析，比較了鋼架參與抗側(cè)力計算與否結(jié)構(gòu)的抗震性能，采用不同阻尼比重點分析了鋼架和混凝土連接點在多個地震波作用下的反應(yīng)。結(jié)果表明：1)對于復(fù)雜高層鋼-混凝土組合結(jié)構(gòu)，建立包括全部鋼構(gòu)件、混凝土結(jié)構(gòu)的整體分析模型是必要的；2)為方便結(jié)構(gòu)配筋，采用混凝土結(jié)構(gòu)模型進(jìn)行計算并作適當(dāng)?shù)男拚图訌姶胧┮彩强尚械模?)鋼、混凝土連接節(jié)點是抗震超限設(shè)計的關(guān)鍵，建議按中震彈性的抗震性能指標(biāo)考慮。
［關(guān)鍵詞］鋼-混凝土復(fù)雜高層;分析模型;不同阻尼比;抗震計算;抗震措施;性能指標(biāo)
Seismic design of out-of -code for structure of Women and Children Museum of China
Jin Laijian, Jing Hui, Tang Hongjie(China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China)
Abstract:Women and Children Museum of China is the steel and concrete mixed structure with 6 stories and the north of the building are 10 stories including 4 inter layers, which has incredible curved surface achieved by steel flange beam. SATWE and ETABS softwares are used in the structure earthquake analysis. Two analysis models those are concrete one and mixed structure one are respectively calculated and the earthquake resistance capabilities of the building are also compared in two states. The different damping ratio is an another important parameter in analysis, the results of steel and concrete node force are listed in different damping ratio. The conclusions show that： (1) For the complicated tall mixed structure, the essential work is to build an accurate modeling in design procedure；(2) The concrete modeling is feasible in analysis considering some seismic parameter adjusting and the fortification measure is adopted； (3) The key point of seismic fortification is the steel-concrete joints calculation when out of code, and this kind of jonts can be designed in comformity with the middling elastic seismic fortification.
Keywords:steel-concrete hybrid tall building; modeling; damping ratio; seismic calculation; seismic fortification measures
作者簡介：金來建，男，工程碩士，研究員級高級工程師，副總結(jié)構(gòu)工程師，Email:jlj2008@139.com
