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(華南理工大學(xué)建筑設(shè)計研究院有限公司， 廣州 510641)
［摘要］貴陽未來方舟F3組團T1塔樓結(jié)構(gòu)總高度為287-6m，出屋面造型鋼桅塔高度為61-5m，算至塔頂建筑高度為349-1m，采用鋼筋混凝土框架-核心筒結(jié)構(gòu)體系。通過工程實例分析探討以下問題：對框架-核心筒結(jié)構(gòu)框架柱不同柱距、不同柱截面形式，從經(jīng)濟性、實用性和施工工藝角度進行比選，以確定最優(yōu)截面形式；樓層受剪承載力比計算中，框架柱抗剪承載力由框架柱兩端的極限彎矩之和除以層高的規(guī)定，由于未考慮抗側(cè)力結(jié)構(gòu)間的變形協(xié)調(diào)及梁端的抗彎承載力，對不同工程有可能出現(xiàn)誤判；超高層建筑出屋面高聳構(gòu)筑物由于質(zhì)量和剛度相對較小，對主體結(jié)構(gòu)影響不大，但構(gòu)筑物本身會有明顯的“鞭梢效應(yīng)”，高振型對其也有不同程度的激勵；按抗震能力的等能量原理，適當(dāng)放松核心筒剪力墻軸壓比，優(yōu)化剪力墻截面厚度，仍可保證結(jié)構(gòu)的安全性；通過考慮混凝土徐變的施工模擬分析，按墻剛度折減系數(shù)0-6、分層剛度分層加載的施工模擬計算方法可滿足工程設(shè)計精度的要求。
［關(guān)鍵詞］框架-核心筒結(jié)構(gòu)； 框架柱選型； 樓層受剪承載力比； 出屋面桅塔； 截面厚度優(yōu)化； 彈塑性分析； 施工模擬
中圖分類號：TU375文獻標識碼：A文章編號：1002-848X(2019)20-0027-07
Selection of frame columns and analysis of several problems in structural design for T1 Tower Building of F3 Block of Guiyang Future Ark
Ding Shaorun， Chen Tianming， Yang Ziyue， Sun Xiaoming
(Architectural Design & Research Institute of SCUT Co.， Ltd.， Guangzhou 510641， China)
Abstract:The total height of the T1 Tower Building of the F3 Block of Guiyang Future Ark is 287-6m, and the height of the steel roofing mast is 61-5m. The architectural height to the tower top is 349-1m. The reinforced concrete frame-corewall structural system was adopted. Through the analysis of engineering examples, the following issues were discussed. From the angles of economy, practicability and construction technology, the frame columns of frame-corewall structure with different column spacing and section forms were compared to determine the optimal section form. In the calculation of floor shear capacity ratio, the code stipulates that the shear capacity of frame columns is divided by the ultimate bending moment at both ends of frame columns by the height of story. Misjudgments may occur for different projects due to the neglect of deformation coordination between lateral resistant structures and the flexural capacity of beam ends. Due to the relatively small mass and stiffness, the super-tall buildings with high roof have little influence on the main structure, but the structure itself has obvious “whip effect”, and the high vibration mode also stimulates them to varying degrees. According to the principle of equal energy of seismic capacity, the safety of the structure can still be guaranteed by relaxing the axial compression ratio of the corewall shear wall and optimizing the thickness of the section of the shear wall. By considering the construction simulation analysis of concrete creep, the requirements of engineering design accuracy can be met by using the construction simulation calculation method based on the reduction coefficient of wall stiffness 0-6 and layered-stiffness layered-loading.
Keywords:frame-corewall structure; selection of frame column; floor shear capacity ratio; roofing mast; optimization of section thickness; elastoplastic analysis; construction simulation
作者簡介：丁少潤，學(xué)士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email:DSR0906@qq.com。
