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（中國中元國際工程有限公司， 北京 100089）
［摘要］柬埔寨國家體育場混凝土結(jié)構(gòu)主要由索塔、環(huán)梁、斜柱及看臺組成，其中索塔及環(huán)梁、斜柱為罩棚支撐體系，受力復(fù)雜，看臺為超長混凝土結(jié)構(gòu)。對索塔采用有限元ABAQUS軟件分析優(yōu)化塔身形體、截面及配筋設(shè)計(jì)，并采用構(gòu)件設(shè)計(jì)方法對其配筋進(jìn)行校核，通過提出一種應(yīng)用于具有狹小上部截面的索塔錨固結(jié)構(gòu)，創(chuàng)新了拉索與索塔連接節(jié)點(diǎn)； 根據(jù)環(huán)梁、斜柱的受力特點(diǎn)進(jìn)行針對性的構(gòu)件設(shè)計(jì)；介紹了混凝土徐變對罩棚支撐體系的影響；通過設(shè)置合理的溫度縫、溫度應(yīng)力分析及構(gòu)造措施等，經(jīng)濟(jì)有效地解決了看臺超長結(jié)構(gòu)溫度應(yīng)力問題；另外，考慮索塔、環(huán)梁、斜柱、看臺同時工作，應(yīng)對看臺結(jié)構(gòu)進(jìn)行包絡(luò)設(shè)計(jì)。
［關(guān)鍵詞］柬埔寨國家體育場; 索塔； 應(yīng)力配筋； 環(huán)梁; 斜柱； 裂縫； 徐變； 看臺結(jié)構(gòu)
中圖分類號：TU393-3文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)01-0023-08
Concrete structural design for Morodok Techo National Stadium in the Kingdom of Cambodia
Meng Yongjie, Geng Shuai, Liu Chong, Zhang Tongyi, Zhang Su, Zhang Yong
(China IPPR International Engineering Co., Ltd.， Beijing 100089， China)
Abstract:The concrete structure of Morodok Techo National Stadium in the Kingdom of Cambodia is mainly composed of cable towers, ring beams, inclined columns and the stand. The cable towers, ring beams and inclined columns are the supporting system of the canopy, which bears complex forces, and the stand is a super-long concrete structure. The shape, cross-section and reinforcement design of the cable towers were analyzed and optimized by finite element software ABAQUS, and the component design method was used to check its reinforcement. The connection joint between cable and cable tower was innovated by proposing a cable tower anchorage structure with narrow upper cross-section. According to the mechanical characteristics of ring beams and inclined columns, the component design was carried out. The influence of concrete creep on the supporting system of canopy was introduced. By setting reasonable temperature joint, temperature stress analysis and structural measures, the problem of temperature stress of super-long stand structure was solved economically and effectively. In addition, considering the simultaneous work of cable towers, ring beams, inclined columns and the stand, envelope design should be conducted on the structure of the stand.
Keywords:Morodok Techo National Stadium in the Kingdom of Cambodia; cable tower; stress-based reinforcement; ring beam; inclined column; crack; creep; stand structure
作者簡介：孟永杰,碩士,高級工程師,一級注冊結(jié)構(gòu)工程師，Email:122690312@qq.com。
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