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(廣東省建筑設(shè)計(jì)研究院，廣州510010)
［提要］結(jié)合云南匯都國(guó)際B棟大型商業(yè)建筑使用功能布局的改變，介紹了由此引起的結(jié)構(gòu)方案的調(diào)整，包括合理的結(jié)構(gòu)方案的選取、調(diào)整后方案的計(jì)算分析、節(jié)點(diǎn)構(gòu)造的處理等主要改造措施。工程實(shí)踐表明，結(jié)構(gòu)改造加固時(shí)應(yīng)針對(duì)具體的實(shí)際情況選用不同的加固方案，以期達(dá)到良好的工作性能，同時(shí)結(jié)構(gòu)改造加固工程不應(yīng)以犧牲抗震性能為代價(jià)；節(jié)點(diǎn)的處理在改造加固結(jié)構(gòu)設(shè)計(jì)中占有重要地位。工程采用的方案不但解決了支撐點(diǎn)的問(wèn)題，也滿(mǎn)足了抗震的整體性能要求，而且盡可能為建筑提供了較大的使用空間，避免因改造而浪費(fèi)，取得了較好的經(jīng)濟(jì)效果。
［關(guān)鍵詞］高層建筑；結(jié)構(gòu)改造調(diào)整；斜撐；豎向桁架；加固節(jié)點(diǎn)
Structure Design for Renovation of Yunnan Huidu International Tower B/Wang Hualin, Zhang Jie, Li Ning (The Architecture Design and Research Institute of Guangdong Province, Guangzhou 510010, China)Abstract:Due to the change of service function in Yunnan Huidu International Tower B, which is a big scale commercial building, the adjusted structure scheme is done and presented, including optional schemes, calculation after adjustment and joints treatment. This project"s experience suggests that conditions alter renovation schemes to get good capability. Furthermore, the aseismic capability should not be sacrificed in renovation project. And the joint treatment plays an important role. The selected scheme not only solves the support problem, but also meets the overall aseismic requirement and provides sufficient service space. Waste is avoided and economical effect is obtained.
Keywords: tall-building; structure renovation; brace; vertical truss; joint; design