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(南通市建筑設(shè)計研究院有限公司, 南通 226006)
[摘要]關(guān)于樓面板消防車等效均布荷載的研究目前已經(jīng)比較成熟,而針對樓面主梁消防車等效均布荷載的研究一直比較匱乏。我國現(xiàn)行《建筑結(jié)構(gòu)荷載規(guī)范》(GB 50009—2012)規(guī)定的樓面主梁消防車等效均布荷載是以樓面板消防車荷載為基礎(chǔ)乘以一個折減系數(shù),這種做法誤差較大。利用ANSYS有限元分析軟件的APDL語言進行移動荷載作用下的編程,計算出消防車陣列在平面任意分布下樓面主梁的荷載效應(yīng),由此得到樓面主梁的消防車等效均布荷載。經(jīng)過大量計算,綜合考慮主梁跨度、柱網(wǎng)尺寸、次梁布置對其的影響,歸納出一定的規(guī)律。
[關(guān)鍵詞]消防車; 等效均布荷載; 樓面主梁; 次梁分布
中圖分類號:TU375文獻標(biāo)識碼:A文章編號:1002-848X(2017)24-0022-04
Study on equivalent uniform live load on main floor beam for fire engines
Chen Bin, Chu Guodong, Zhang Jimin
(Nantong Architectural Design & Research Institute Co., Ltd., Nantong 226006, China)
Abstract:The research on the equivalent uniform load of the floor for fire engines is relatively mature now, but the research on the equivalent uniform live load of the floor beam for fire engines is scarce. The load on floor beam for fire engines specified in the current Load code for the design of building structures (GB 50009—2012) is multiplied by a reduction factor based on the floor load for fire engines, which has a large error. APDL language in ANSYS finite element analysis software was used for programming of moving load, to calculate the load effect of the main floor beam for fire engines array in arbitrary distribution, thus obtaining equivalent uniform live load of the main floor beam for fire engines. After a lot of calculations, some rules were summed up considering the effects of main beam span, column grid size and layout of secondary beam on the equivalent uniform live load.
Keywords:fire engine; equivalent uniform live load; main floor beam; secondary beam layout
作者簡介:陳彬,碩士,工程師,一級注冊結(jié)構(gòu)工程師,Email:roxettechbin@163.com。