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(中國建筑標(biāo)準(zhǔn)設(shè)計(jì)研究院, 北京 100082)
［摘要］天津旺海國際廣場1#、2#樓的結(jié)構(gòu)高度為147m，屬超高層結(jié)構(gòu)，采用筒中筒結(jié)構(gòu)體系。為了使分析結(jié)果安全可靠，分別運(yùn)用PKPM和ETABS兩種軟件對結(jié)構(gòu)進(jìn)行了多遇地震下的反應(yīng)譜分析，并將結(jié)果進(jìn)行對比。結(jié)果表明，兩種軟件求得的結(jié)構(gòu)各主要參數(shù)結(jié)果都基本一致，誤差很小，從而證明了計(jì)算結(jié)果的正確性。在反應(yīng)譜分析的基礎(chǔ)上，利用PKPM軟件對結(jié)構(gòu)進(jìn)行了彈性時(shí)程反應(yīng)分析，時(shí)程分析選取了5條天然波和2條人工波。分析結(jié)果顯示，時(shí)程分析計(jì)算出的結(jié)構(gòu)各層剪力的平均值略大于反應(yīng)譜分析的結(jié)果，在設(shè)計(jì)時(shí)，對整樓的地震力進(jìn)行了放大處理，使構(gòu)件的內(nèi)力和配筋滿足要求。
［關(guān)鍵詞］超高層； 筒中筒； 多遇地震； 反應(yīng)譜分析； 時(shí)程分析
中圖分類號： TU318 文獻(xiàn)標(biāo)識碼： A 文章編號： 1002-848X(2015)S2-0295-05
Structural analysis and design on the 1# and 2# tower building of
Wanghai International Plaza in Tianjin
Yuan Jianping
（China Institute of Building Standard Design & Research, Beijing 100082, China）
Abstract: The structural height of the 1# and 2# tower building of Wanghai International Plaza in Tianjin is 147meters. It is a super high-rise building, and the structural system is tube in tube structure. In order to make the analysis results safe and reliable, response spectrum analysis of the structure under frequent earthquake were carried out by PKPM and ETABS respectively, and the results of the two programs were compared. The compared results show that the main parameters of the structure are almost the same and the error is very small, which proves the results are correct. Based on the response spectrum analysis, elastic time-history analysis was carried out by using PKPM, which selected five natural seismic waves and two artificial seismic waves. The results of time-history analysis are slightly bigger than those of response spectrum analysis. In order to make the structural member′s internal forces and reinforcement meet the requirements of the code, the seismic force of the whole tower was amplified in the design process.
Keywords: super high-rise; tube-in-tube structure; frequent earthquake; response spectrum analysis; time-history analysis
作者簡介: 袁劍平,工程師,一級注冊結(jié)構(gòu)工程師，Email:sword1010@163.com。
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