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

（中國(guó)中元國(guó)際工程有限公司， 北京 100089）

［摘要］柬埔寨國(guó)家體育場(chǎng)罩棚懸挑跨度達(dá)65m，采用了新型的斜拉-張力結(jié)構(gòu)體系。對(duì)罩棚結(jié)構(gòu)體系進(jìn)行了初始態(tài)、恒載、活載、風(fēng)荷載、溫度作用的計(jì)算，對(duì)罩棚結(jié)構(gòu)的施工成形進(jìn)行了模擬，對(duì)主要索夾節(jié)點(diǎn)進(jìn)行了有限元分析，介紹了罩棚縮尺模型試驗(yàn)的主要結(jié)果。同時(shí)對(duì)罩棚結(jié)構(gòu)開(kāi)展了抗風(fēng)專項(xiàng)設(shè)計(jì)研究，評(píng)估了設(shè)置TMD減振器對(duì)環(huán)索風(fēng)致振動(dòng)的減振效果；針對(duì)斜拉索和背索的風(fēng)振問(wèn)題，提出了設(shè)置黏滯阻尼器減振方案，并介紹了黏滯阻尼器參數(shù)的簡(jiǎn)化設(shè)計(jì)方法。計(jì)算分析結(jié)果表明，罩棚結(jié)構(gòu)采用的新型結(jié)構(gòu)體系承載力、剛度均滿足設(shè)計(jì)要求；TMD減振器對(duì)于環(huán)索風(fēng)振加速度有較好的減振效果；在斜拉索和背索上端設(shè)置黏滯阻尼器能有效提高索的附加阻尼比。

［關(guān)鍵詞］柬埔寨國(guó)家體育場(chǎng)； 罩棚； 斜拉-張力結(jié)構(gòu)； 索膜結(jié)構(gòu)設(shè)計(jì)； 索夾節(jié)點(diǎn)； 減振

中圖分類號(hào)：TU393-3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2020)01-0015-08

Structural design for canopy of Morodok Techo National Stadium in the Kingdom of Cambodia

Zu Yizhen, Zhang Tongyi, Zhang Su, Wang Jitao, Meng Yongjie, Wang Wenyuan

(China IPPR International Engineering Co., Ltd., Beijing 100089, China)

Abstract:The cantilevered span of Morodok Techo National Stadium in the Kingdom of Cambodia is 65m, and a new type of cable-stayed tensile structural system was adopted. The initial state, dead load, live load, wind load and temperature action of the canopy structural system were calculated, the construction forming of the canopy structure was simulated, the main cable clamp joints were analyzed by finite element method, and the main results of the canopy scale model test were introduced. At the same time, the special wind resistant design of the canopy structure was carried out, and the effect of TMD damper on the wind-induced vibration of the loop cable was evaluated. Aiming at the wind-induced vibration of the stay cable and the back cable, the scheme of setting the viscous damper was proposed, and the simplified design method of the parameters of the viscous damper was introduced. The results of calculation and analysis show that the bearing capacity and rigidity of the new structural system used in the canopy structure meet the design requirements; the TMD damper has well damping effect on the wind-induced acceleration of the loop cable; the viscous damper is set at the upper end of the stay cable and the back cable to effectively improve the additional damping ratio of the cable.

Keywords:Morodok Techo National Stadium in the Kingdom of Cambodia; canopy; cable-stayed tensile structure; cable-membrane structural design; cable clamp joint; vibration reduction

作者簡(jiǎn)介：祖義禎，博士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：zuamanda@qq.com。