884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

(筑博設(shè)計(jì)股份有限公司, 深圳 518040)

摘要: 大跨度懸掛結(jié)構(gòu)動(dòng)力特性復(fù)雜,在懸掛樓蓋上進(jìn)行室內(nèi)體育活動(dòng)容易產(chǎn)生較大振動(dòng). 大沙河文體中心在標(biāo)高 39. 2m 處設(shè)置了 4 榀跨度為 58. 8m 的鋼桁架以懸掛 58. 8m× 88. 8m 的羽毛球館樓蓋;采用 SAP2000 軟件對(duì)整體結(jié)構(gòu)進(jìn)行有限元時(shí)程分析得出,羽毛球館樓蓋在有節(jié)奏運(yùn)動(dòng)荷載激勵(lì)下,樓蓋豎向振動(dòng)產(chǎn)生的有效最大加速度為 0. 911m / s2,大于《建筑樓蓋結(jié)構(gòu)振動(dòng)舒適度技術(shù)標(biāo)準(zhǔn)》 ( JGJ/ T 441—2019) 規(guī)定的限值 0. 5m / s2;通過(guò)增加調(diào)頻質(zhì)量阻尼器( TMD)進(jìn)行減振控制后,樓蓋豎向振動(dòng)產(chǎn)生的有效最大加速度為 0. 467m / s2,減振效果明顯,能夠滿足規(guī)范對(duì)樓蓋舒適度的要求.

關(guān)鍵詞: 大沙河文體中心; 大跨度鋼桁架; 懸掛結(jié)構(gòu); 有節(jié)奏運(yùn)動(dòng); 豎向振動(dòng); 減振設(shè)計(jì); 調(diào)頻質(zhì)量阻尼器

中圖分類號(hào):TU973 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2022)03-0051-06

DOI:10. 19701 / j. jzjg. LS210002

Vertical vibration comfort analysis and vibration reduction design of large-span suspendedbadminton hall floor in Dashahe Cultural and Sports Center

TANG Kaifeng

( Zhubo Architectural & Engineering Design Co., Ltd., Shenzhen 518040, China)

Abstract:The dynamic characteristics of the large-span suspension structure are complex, and indoor sports activities onthe suspended floor cover are easy to cause large vibration. The Dashahe Cultural and Sports Center set up 4 steel trusseswith a span of 58. 8m at the elevation of 39. 2m to suspend the badminton hall with size of 58. 8m × 88. 8m. The finiteelement time history analysis of the overall structure using SAP2000 software shows that the effective maximum accelerationgenerated by the vertical vibration of the badminton hall floor under the excitation of rhythmic motion load is 0. 911m / s2,which is greater than the limit of 0. 5m / s2set in the Technical Standard for Vibration comfort of Building Floor Structures( JGJ/ T 441—2019) . The effective maximum acceleration generated by vertical vibration of the floor is 0. 467m / s2aftervibration reduction control by adding tuned mass damper ( TMD) , and the vibration reduction effect is obvious, which canmeet the requirements of the code for the comfort of the floor.

Keywords:Dashahe Cultural and Sports Center; large span steel truss; suspended structure; rhythmic motion; verticalvibration; vibration reduction design; TMD

第一作者:湯凱峰,學(xué)士,高級(jí)工程師,一級(jí)注冊(cè)結(jié)構(gòu)工程師,主要從事建筑結(jié)構(gòu)設(shè)計(jì),Email:492056478@ qq. com.

[引用本文] 湯凱峰. 大沙河文體中心大跨度懸掛羽毛球館樓蓋豎向振動(dòng)舒適度分析及減振設(shè)計(jì)[ J]. 建筑結(jié)構(gòu),2022,52( 3):51-56,123. TANG Kaifeng. Vertical vibration comfort analysis and vibration reduction design of large-spansuspended badminton hall floor in Dashahe Cultural and Sports Center[J]. Building Structure,2022,52(3):51-56,123.