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(廣東省建筑設(shè)計(jì)研究院，廣州510010)
［提要］廣東省博物館新館采用了鋼管混凝土預(yù)應(yīng)力桁架對(duì)挑懸掛結(jié)構(gòu)體系，節(jié)點(diǎn)構(gòu)造復(fù)雜。通過對(duì)關(guān)鍵節(jié)點(diǎn)的合理設(shè)計(jì)，較好地解決了鋼結(jié)構(gòu)與混凝土、鋼結(jié)構(gòu)與預(yù)應(yīng)力之間的關(guān)系，并進(jìn)行了節(jié)點(diǎn)有限元分析及節(jié)點(diǎn)試驗(yàn)的檢驗(yàn)。工程中的主要節(jié)點(diǎn)在滿足結(jié)構(gòu)受力的前提下，同時(shí)兼顧了造價(jià)及施工方面的要求。另外，通過內(nèi)置鋼管混凝土剪力墻、鋼管混凝土桁架、鋼結(jié)構(gòu)預(yù)應(yīng)力、減振措施及內(nèi)置加氣混凝土砌塊鋼筋混凝土樓板等新技術(shù)的運(yùn)用，在控制用鋼量的同時(shí)極大地提高了結(jié)構(gòu)安全性。
［關(guān)鍵詞］鋼管柱；桁架；吊桿；內(nèi)置鋼管混凝土剪力墻；鋼管混凝土桁架；鋼結(jié)構(gòu)預(yù)應(yīng)力；減振措施；內(nèi)置加氣混凝土砌塊；鋼筋混凝土樓板
Node Design and New Techniques Application in Guangdong Province Museum/Li Na, Wang Hualin, Chen Xing (The Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China)Abstract:The Guangdong province museum applies the suspension structure system, in which the overhang truss is made of concrete filled pre-stressed steel pipe. Since the node is complex, through reasonable design for some essential nodes, verification with FEM analysis and model loading test, a reasonable solution is obtained, which get the balance between steel and concrete structure, and between the steel and the pre-stressed structure. The main nodes satisfy not only the structural design, but also the construction cost and contingency. Moreover, the application of new techniques, including the CFST embedded shear wall, the concrete filled steel pipe truss, the pre-stressed steel structure, the anti-vibration measure and the aero-concrete artificial brick RC floor, can control the steel assumption and increase the safety of structure.
Keywords:steel pipe column; truss; suspension bar; CFST embedded shear-wall; concrete-filled steel tubular pre-stressed truss; steel pre-stressed structure; anti-vibration measure; aeroconcrete artificial brick RC floor