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(中國(guó)建筑西北設(shè)計(jì)研究院有限公司, 西安 710018)

摘要: 以 20 世紀(jì) 80 年代建造的西安永寧門(mén)月城砌體結(jié)構(gòu)去承重墻加固設(shè)計(jì)為背景,首先介紹了本工程現(xiàn)狀,然后對(duì)其進(jìn)行了全面的結(jié)構(gòu)檢測(cè)及安全鑒定,鑒定結(jié)果表明:該結(jié)構(gòu)多處不滿足抗震措施,需要進(jìn)行加固。 其次介紹了加固的限制條件與建筑功能需求, 限制條件為加固過(guò)程不能拆除建筑外墻,改造完成后建筑外觀須保持原狀;建筑功能由兩層辦公樓改造成為單層展覽空間。 再次詳細(xì)描述了采用內(nèi)鑲框架結(jié)構(gòu)的加固方案和構(gòu)件加固設(shè)計(jì)要點(diǎn)。 最后對(duì)結(jié)構(gòu)進(jìn)行小震反應(yīng)譜和大震彈塑性時(shí)程分析,計(jì)算結(jié)果表明,結(jié)構(gòu)加固后滿足規(guī)范要求。

關(guān)鍵詞: 砌體結(jié)構(gòu); 加固改造; 去承重墻; 內(nèi)鑲框架結(jié)構(gòu); 灰土井樁; 單跨框架

中圖分類(lèi)號(hào):TU362 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2022)24-0071-06

DOI:10. 19701 / j. jzjg. XBY2218

Strengthening design of removing load-bearing wall of masonry structure for Xi’an Half Moon City

LU Ji, WEI Sunyin

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

Abstract: Based on the strengthening design of removing load-bearing wall of masonry structure for Xi’an Half Moon Citybuilt in 1980s, first the current status of the project were introduced, then a comprehensive structural detection and safetyappraisal were carried out, the appraisal results show that the structure does not meet the aseismic measures in many placesand need to be reinforced. Secondly, the restriction conditions and the functional requirements of the building wereintroduced, the restriction conditions were that the external wall of the building cannot be removed during the strengtheningprocess, and the facade of the building must remain unchanged after the reconstruction, and the building function wastransformed from two storeies office building into a single storey exhibition space. Thirdly, the strengthening scheme of theinlaid frame structure and the key points of strengthening design for the component were described in detail. Finally, theresponse spectrum of the structure under small earthquake and the elastoplastic time history of the structure under largeearthquake were carried out, and the calculation results show that the structure meets the requirements of the code afterstrengthening.

Keywords:masonry structure; strengthening and reconstruction;removing load-bearing wall; inlaid frame structure; limepile; single span frame

第一作者:盧驥,碩士,高級(jí)工程師,一級(jí)注冊(cè)結(jié)構(gòu)工程師,主要從事復(fù)雜結(jié)構(gòu)設(shè)計(jì),Email:93026916@ qq. com。

[引用本文] 盧驥,韋孫印. 西安永寧門(mén)月城砌體結(jié)構(gòu)去承重墻加固設(shè)計(jì)[J]. 建筑結(jié)構(gòu),2022,52(24):71-76. LUJi,WEI Sunyin. Strengthening design of removing load-bearing wall of masonry structure for Xi’an Half Moon City[ J].Building Structure,2022,52(24):71-76.