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(廣東省建筑設(shè)計(jì)研究院，廣州510010)
［提要］嶺南明珠體育館工程屋蓋系統(tǒng)采用新型的“斗拱型”穹頂鋼結(jié)構(gòu)。改變了以往穹頂結(jié)構(gòu)由拱旋轉(zhuǎn)而成的思維方法，工程是由水平環(huán)集結(jié)成體。穹頂?shù)纳习氩繛閴嚎s環(huán)，下部為張力環(huán)，水平環(huán)采用H型鋼組成的具有足夠剛度的空間三角形鋼桁架，通過立柱及外斜桿，層層疊加，最終形成穩(wěn)固的穹頂。結(jié)構(gòu)具有良好的通風(fēng)采光的功能。
［關(guān)鍵詞］斗拱型穹頂；水平環(huán)；壓縮環(huán)；張力環(huán)；立柱；外斜桿
Column Arch Dome Steel Structure Design of Foshan Lingnanmingzhu Gymnasium/Zhou Minhui, Li Zhihong, Chen Wenxiang, Li Weifeng (The Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010,China)
Abstract: The column arch dome steel structure is adopted in Foshan lingnan gymnasium roof system. The traditional dome is formed by rotated arch, but this dome is changed to the group of horizontal rings. On the top of the dome there is compress-ring, and on the bottom, tension-ring. The horizontal ring is composed of stereophonic triangle truss with H-style steel member. Through column and outer-inclined pipe, the horizontal ring is superimposed one by one. The roof system has the characters of well ventilation and natural lighting.
Keywords: column arch dome; horizontal ring; compress-ring; tension-ring; column; outer-inclined pipe