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(中國建筑東北設(shè)計研究院有限公司深圳設(shè)計院， 深圳 518040)
摘要: 西安奧體中心體育館看臺的抗側(cè)力體系采用鋼筋混凝土框架￣剪力墻結(jié)構(gòu)，階梯形看臺板采用預(yù)制清水混凝土板。 體育館外圍周長達(dá) 530m，為超長結(jié)構(gòu)。 采用 SAP2000 軟件分析了預(yù)制清水混凝土看臺板的簡化模擬方法及其對整體結(jié)構(gòu)的受力影響；分析了環(huán)形結(jié)構(gòu)內(nèi)環(huán)直徑大小對溫度應(yīng)力的影響，比較了環(huán)形結(jié)構(gòu)和長邊長度分別等于環(huán)形結(jié)構(gòu)周長和直徑的矩形結(jié)構(gòu)三者之間的溫度應(yīng)力差別；針對看臺超長的特點，對混凝土看臺進(jìn)行了溫度應(yīng)力分析，分析時考慮了混凝土收縮、徐變以及基礎(chǔ)水平剛度等因素。 各項分析結(jié)果表明，預(yù)制清水混凝土看臺板主要影響斜向看臺的環(huán)向受力，對斜向看臺徑向受力的影響可以忽略；溫度作用下，環(huán)形結(jié)構(gòu)樓板拉應(yīng)力小于長邊長度等于環(huán)形結(jié)構(gòu)周長的矩形結(jié)構(gòu)，與長邊長度等于環(huán)形結(jié)構(gòu)直徑的矩形結(jié)構(gòu)比較接近。
關(guān)鍵詞: 西安奧體中心；清水混凝土；預(yù)制看臺板；超長混凝土結(jié)構(gòu)；環(huán)形結(jié)構(gòu)；溫度應(yīng)力
中圖分類號:TU318 文獻(xiàn)標(biāo)志碼:A 文章編號:1002￣848X(2022)01￣0007￣05
DOI:10. 19701 / j. jzjg. LS201838
Design research on the super￣long prebricated fair￣faced concrete stand ofXi′an Olympic Sports Center Gymnasium
YANG Xiaoquan， LIU Guoyin
(China Northeast Architectural Design &Research Institute Shenzhen Design Institute， Shenzhen 518040， China)
Abstract: The lateral resisting system of the stand of Xi′ an Olympic Sports Center Gymnasium adopts the reinforcedconcrete frame￣shearwall structure， and the step￣like stand slab adopts the prefabricated fair￣faced concrete slab. Thelength of the outermost line of the gymnasium reaches 530m， which is a super￣long structure. The SAP2000 software wasused to analyze the influence of the simplified simulation method of prefabricated fair￣faced concrete stand slab on the wholestructure. The influence of the inner diameter of the annular structure on the temperature stress was analyzed， and thetemperature stress differences between the annular structure and the rectangular structures whose long side length wasrespectively equal to the circumference and diameter of the annular structure were compared. According to thecharacteristics of super￣long stand， the thermal stress of the concrete stand slab was analyzed considering the factors ofconcrete shrinkage， creep and horizontal stiffness of foundation. Various analysis results show that the prefabricatedfair￣faced concrete stand slab mainly affects the circumferential force of the oblique stand， and the influence on the radialforce of the oblique stand can be ignored；under the action of temperature， the tensile stress of the ring structure slab is lessthan the rectangular structure slab with length of the long side equal to the ring perimeter of structure and is close to therectangular structure whose long side length is equal to the diameter of the ring structure.
Keywords: Xi′an Olympic Sports Center；fair￣faced concrete prefabricated stand slab；super￣long concrete structure；ringstructure；thermal stress
第一作者:陽小泉，碩士，工程師，主要從事大跨空間結(jié)構(gòu)及超高層結(jié)構(gòu)設(shè)計研究，Email:yxqseu@ 163. com。
[引用本文] 陽小泉，劉國銀. 西安奧體中心體育館超長預(yù)制清水混凝土看臺設(shè)計研究[ J]. 建筑結(jié)構(gòu)，2022，52(1):7￣11，23. YANG Xiaoquan，LIU Guoyin. Design research on the super￣long prebricated fair￣faced concrete stand ofXi′an Olympic Sports Center Gymnasium[J]. Building Structure，2022，52(1):7￣11，23.
