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(1 四川省建筑設(shè)計研究院有限公司, 成都 610095;2 四川省建筑設(shè)計研究院有限公司復(fù)雜結(jié)構(gòu)設(shè)計研究中心, 成都 610095)
摘要: 天府國際金融中心項目 3#、4#、5#、6#樓采用框架-核心筒結(jié)構(gòu)體系,房屋結(jié)構(gòu)高度分別為 98. 8、129. 9、90. 4、139. 4m. 外框架中穿層柱占比為 89% ~ 100%,穿層柱長度為 8~ 24m,穿層柱層數(shù)為 2~ 5 層,裙房僅與穿層柱連接,結(jié)構(gòu)穿層柱關(guān)系復(fù)雜. 通過增設(shè)水平桁架等概念設(shè)計,結(jié)合抗震性能化設(shè)計及穿層柱專項分析等對結(jié)構(gòu)的抗震性能進行了分析與評估. 對核心筒墻體、水平桁架、薄弱部位的樓板等采取了加強措施. 結(jié)果表明:增設(shè)的水平桁架可以協(xié)調(diào)塔樓與裙房協(xié)同工作,也降低了穿層柱的復(fù)雜程度,相關(guān)的加強措施增強了結(jié)構(gòu)第一道防線的承載能力,改善了第二道防線的承載能力,結(jié)構(gòu)可以滿足預(yù)設(shè)性能目標(biāo). 對于帶復(fù)雜穿層柱的結(jié)構(gòu),按提出的穿層柱極限分析法進行構(gòu)件設(shè)計可有效增強穿層柱的穩(wěn)定承載力,提高整體結(jié)構(gòu)的安全性.
關(guān)鍵詞: 框架-核心筒; 復(fù)雜穿層柱; 水平桁架; 抗震性能化設(shè)計; 多道防線
中圖分類號:TU972+. 9,TU318+. 2 文獻標(biāo)志碼:A 文章編號:1002-848X(2023)07-0032-09
DOI:10. 19701 / j. jzjg. SADI2305
Structural design of complex slender columns in Tianfu International Financial Center
SHU Meng1, ZHAO Shixing1,2, ZHANG Kun1, CHEN Junzhou1, XIN Wei1, JING Wei1
(1 Sichuan Provincial Architectural Design and Research Institute Co. , Ltd. , Chengdu 610095, China;2 Complex Structure Design and Research Center, Sichuan Provincial Architectural Design andResearch Institute Co. , Ltd. , Chengdu 610095, China)
Abstract: Tianfu International Financial Center project 3#, 4#, 5#, 6# building adopts frame-core wall structure system,the structural height is 98. 8, 129. 9, 90. 4, 139. 4m respectively. The proportion of the slender columns in the outer frameis 89% ~ 100% , the effective length are 8m to 24m, passing through 2 to 5 stories, the annex structures are connected tothese slender columns, making the slender columns more complex. The seismic performance of the structure was analyzedand evaluated through the addition of horizontal truss and other conceptual designs, in combination with the seismicperformance-based design and the special analysis of slender columns. Strengthening measures were adopted for the corewall, horizontal truss and weak parts of the slabs. The results show that: adding horizontal truss enable to coordinate thecooperative work between the main tower and the annex structures, reducing the complexity of the slender columns, therelevant strengthening measures enhance the bearing capacity of the first line of defense and improve bearing capacity of thesecond line of defense, ensuring that the structure achieve the predetermined performance objectives. Regarding to thestructure with complicated slender columns, the proposed limit analysis design method in designing columns, can effectivelyincrease the bearing capacity of stability, which improve the safety of the overall structure.
Keywords:frame-core wall; complex slender column; horizontal truss; performance-based seismic design; multiple lines ofdefense
第一作者:舒猛,學(xué)士,工程師,一級注冊結(jié)構(gòu)工程師,主要從事復(fù)雜結(jié)構(gòu)、減隔震及結(jié)構(gòu)抗震研究,Email:519996882@ qq. com.
[引用本文] 舒猛,趙仕興,張堃,等. 天府國際金融中心復(fù)雜穿層柱結(jié)構(gòu)設(shè)計[ J]. 建筑結(jié)構(gòu),2023,53(7):32-40.SHU Meng,ZHAO Shixing, ZHANG Kun, et al. Structural design of complex slender columns in Tianfu InternationalFinancial Center [J]. Building Structure,2023,53(7):32-40.
