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(中國建筑西北設(shè)計研究院有限公司, 西安 710018)

摘要: 四季薈中心 1#樓結(jié)構(gòu)高度 149. 27m,采用鋼筋混凝土框架-剪力墻結(jié)構(gòu)體系。 結(jié)構(gòu)主要難點包括超 B 級高度、整體高寬比及筒體高寬比超過規(guī)范建議值較多、局部墻體長度變化、角部存在無柱的框架轉(zhuǎn)角梁(長懸挑梁) 等不利情況,屬于超限高層建筑。 介紹了超限高層結(jié)構(gòu)設(shè)計中的關(guān)鍵問題,進(jìn)行了方案比選、彈性分析、靜力彈塑性分析、動力彈塑性分析、樓板應(yīng)力分析、樓面振動舒適度專項分析。 結(jié)果表明結(jié)構(gòu)能滿足規(guī)范要求,達(dá)到設(shè)定的性能目標(biāo)。

關(guān)鍵詞: 超限高層結(jié)構(gòu); 方案比選; 型鋼排布優(yōu)化; 框架-剪力墻; 樓板振動舒適度分析

中圖分類號:TU318+. 1 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2022)11-0097-08

DOI:10. 19701 / j. jzjg. XBY2215

Structural design for Tower 1# of Si Ji Hui Center

ZHAO Xiaoyi, CHEN Hongzhang, ZHONG Chongmin, WU Kun, LIU Feng

(China Northwest Architectural Design and Research Institute Co. , Ltd. , Xi’ an 710018, China)

Abstract: The height of Tower 1# of Si Ji Hui Center is 149. 27m, and it adopts a reinforced concrete frame-shear wall structure system. The main difficulties of the structure including super B-level height, overall height-width ratio and cylinder height-width ratio exceeding the recommended value of the specification, local wall length changes, frame corner beams without columns at the corners, large overhangs and other unfavorable situations, which belong to over-limit high-rise building. The key issues in the design of over-limited high-rise structures were introduced, and the comparison and selection of schemes, elastic analysis, static elastic-plastic analysis, dynamic elastic-plastic analysis, floor stress analysis, and floor vibration comfort were carried out. The results show that the structure can meet the specifications requirements and achieve the set performance goals.

Keywords:out-of-code high-rise structure; scheme comparison and selection; steel distribution optimization; frame-shearwall