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(1 北京建工集團(tuán)有限責(zé)任公司, 北京 100055; 2 亞太建設(shè)科技信息研究院有限公司, 北京 100120;3 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; 4 華北科技學(xué)院建筑工程學(xué)院,廊坊 065201)

摘要: 北京工人體育場(chǎng)改造復(fù)建項(xiàng)目屋面采用聚碳酸酯波形板,對(duì)單塊跨度 3. 5m 的聚碳酸酯波形板分別進(jìn)行了彈性階段和破壞階段的力學(xué)性能試驗(yàn). 試驗(yàn)通過(guò)設(shè)置不同數(shù)量支座以模擬不同跨度的聚碳酸酯波形板,試件分別是 2 支座約束的單跨板和 3 支座約束的雙跨板,并根據(jù)項(xiàng)目的聚碳酸酯波形板實(shí)際安裝情況,設(shè)置了水平和傾角安裝方式. 結(jié)果表明:在彈性階段,3 支座約束的雙跨板剛度和承載能力顯著增強(qiáng);傾角安裝方式下 2 支座約束的單跨板剛度大于水平安裝方式,水平安裝方式的雙跨板在前 6 級(jí)加載下的剛度大于傾角安裝方式. 水平安裝方式的雙跨板破壞形式為局部發(fā)生斷裂的脆性破壞,破壞時(shí)試驗(yàn)加載荷載為 2. 05kPa,最大應(yīng)力為 12. 32MPa. 研究結(jié)果表明 3 支座約束的雙跨板在水平安裝方式下的使用性能更優(yōu).

關(guān)鍵詞: 北京工人體育場(chǎng); 聚碳酸酯波形板; 力學(xué)性能; 約束類型

中圖分類號(hào):TU767+. 5 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)06-0059-06

DOI:10. 19701 / j. jzjg. ZJ220109

Experimental study on mechanical properties of polycarbonate corrugated board for the roof of Beijing Workers Stadium

WANG Meng1, WANG Bin2, ZHANG Faqiang3,4, LI Xiajie1

(1 Beijing Construction Engineering Group Co. , Ltd. , Beijing 100055, China; 2 Yatai Construction Science &Technology Consulting Institute Co. , Ltd. , Beijing 100120, China; 3 Hebei Key Laboratory of Civil EngineeringCatastrophe Control and Disaster Emergency Response, Langfang 065201, China; 4 Architectural EngineeringCollege, North China Institute of Science and Technology, Langfang 065201, China)

Abstract: The roof of the Beijing Workers' Stadium renovation and rehabilitation project adopts polycarbonate corrugatedboards, and the experimental on mechanical properties of the single polycarbonate corrugated board with a span of 3. 5mwere tested in the elastic stage and the failure stage respectively. The test set up different numbers of supports to simulatedifferent spans of polycarbonate corrugated board, the test specimens were 2-support constrained single-span plate and 3-support constrained double-span plate, and according to the actual installation of the project engineering polycarbonatecorrugated board, horizontal and inclined installation methods were set up. The results show that the stiffness and bearingcapacity of the 3-support constrained double-span plate is significantly enhanced in the elastic stage. The stiffness of the 2-support constrained single-span plate under the inclination installation method is greater than that of the horizontalinstallation method, the double-span plate of the horizontal installation method has a greater stiffness than the inclinationinstallation method under the first 6 stages of loading. The double-span plate failure form of the horizontal installationmethod is the brittle failure of local fracture, and the test load is 2. 05kPa and the maximum stress is 12. 32MPa. Theresults show that the 3-support constrained double-span plate is better in horizontal installation.

Keywords:Beijing Workers Stadium; polycarbonate corrugated board; mechanical properties; constraint type

∗河北省省級(jí)科技計(jì)劃資助(22375410D).

第一作者:王猛,學(xué)士,高級(jí)工程師,主要從事大型體育場(chǎng)館施工工作,Email:13693637969@ 163. com.

[引用本文] 王猛,王彬,張發(fā)強(qiáng),等. 北京工人體育場(chǎng)屋面聚碳酸酯波形板力學(xué)性能試驗(yàn)研究[ J]. 建筑結(jié)構(gòu),2023,53(6):59-64,136. WANG Meng,WANG Bin,ZHANG Faqiang,et al. Experimental study on mechanical propertiesof polycarbonate corrugated board for the roof of Beijing Workers Stadium [ J]. Building Structure, 2023, 53 ( 6): 59-64,136