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(1 北京建工集團(tuán)有限責(zé)任公司, 北京 100055; 2 河北省土木工程災(zāi)變控制與災(zāi)害應(yīng)急重點(diǎn)實(shí)驗(yàn)室, 廊坊 065201; 3 華北科技學(xué)院建筑工程學(xué)院, 廊坊 065201)
摘要: 早期建設(shè)的大型體育場館面臨著結(jié)構(gòu)耐久性已達(dá)安全使用下限、系統(tǒng)的設(shè)備升級改造、人流疏導(dǎo)與現(xiàn)代交通系統(tǒng)接駁、文化消費(fèi)提升等問題,需要拆除復(fù)建. 以北京工人體育場拆除施工為例,比選了爆破拆除、靜力拆除、機(jī)械拆除 3 種方案,最終采取機(jī)械拆除方案;通過有限元軟件 MIDAS Gen 對 3 種不同拆除工況采取移除構(gòu)件法進(jìn)行拆除施工仿真計(jì)算,結(jié)果表明采取從高到低、逐跨逐間、先內(nèi)后外的拆除工況最為合理;并對該種工況選取 3 個(gè)不同步驟進(jìn)行連續(xù)倒塌分析,描述了預(yù)應(yīng)力梭形燈架、鋼結(jié)構(gòu)挑梁、主體看臺(tái)區(qū)的拆除施工工藝,為北京工人體育場拆除施工提供技術(shù)支撐.
關(guān)鍵詞: 北京工人體育場; 大型體育場館; 機(jī)械拆除; 施工仿真計(jì)算
中圖分類號(hào):TU746. 3 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)06-0006-06
DOI:10. 19701 / j. jzjg. ZJ220106
Discussion on simulation and scheme optimization of large stadium demolition construction
LI Xin1, WANG Meng1, ZHANG Faqiang2,3, GONG Fuqiang1
(1 Beijing Construction Engineering Group Co. , Ltd. , Beijing 100055, China; 2 Hebei Key Laboratory of CivilEngineering Catastrophe Control and Disaster Emergency Response, Langfang 065201, China; 3 Architectural EngineeringCollege, North China Institute of Science and Technology, Langfang 065201, China)
Abstract: The large stadiums built in the early days are faced with problems such as the structural durability has reachedthe lower limit of safe use, the upgrading and transformation of the system equipment, the connection between the flow ofpeople and the modern transportation system, and the promotion of cultural consumption,which need to be demolished andrebuilt. Taking the demolition construction of Beijing Workers Stadium as an example, three schemes of blastingdemolition, static demolition and mechanical demolition were compared and selected, and the mechanical demolitionscheme was adopted finally. The removal of components method were adopted to carry out the demolition constructionsimulation calculation for three different demolition conditions by finite element software MIDAS Gen. The results show thatthe demolition conditions from high to low, span by span, first inside and then outside are the most reasonable. Threedifferent steps were selected for continuous collapse analysis in this condition, and the demolition construction technology ofprestressed spindle light frame, steel structure beam and main stand area were described, which provides technical supportfor the demolition construction of Beijing Workers Stadium.
Keywords:Beijing Workers Stadium; large stadium; mechanical demolition; construction simulation calculation
∗河北省省級科技計(jì)劃資助(22375410D).
第一作者:李欣,碩士,高級工程師,主要從事大型公建項(xiàng)目建造及施工研究,Email:1710941523@ qq. com.
[引用本文] 李欣,王猛,張發(fā)強(qiáng),等. 大型體育場館拆除施工仿真與方案優(yōu)化探討[J]. 建筑結(jié)構(gòu),2023,53(6):6-11. LI Xin,WANG Meng,ZHANG Faqiang, et al. Discussion on simulation and scheme optimization of large stadiumdemolition construction[J]. Building Structure,2023,53(6):6-11.
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