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（廣東省建筑設(shè)計(jì)研究院，廣州 510010）

［摘要］簡要介紹了橫琴創(chuàng)意谷地基基礎(chǔ)設(shè)計(jì)，選用潛孔錘引孔有效地解決了預(yù)應(yīng)力管樁難以穿越堅(jiān)硬填石層的問題，設(shè)計(jì)中考慮了長徑比對(duì)樁身承載力的影響并計(jì)入負(fù)摩阻力，基于地下水的腐蝕性提出了淺層干濕交替段管樁的耐久性要求；重點(diǎn)介紹了上部結(jié)構(gòu)設(shè)計(jì)，包括結(jié)構(gòu)選型及布置、鋼構(gòu)節(jié)點(diǎn)和鋼筋桁架樓承板組合鋼梁、超長結(jié)構(gòu)控制措施、整體計(jì)算結(jié)果、單跨框架抗震性能化設(shè)計(jì)、單排雙柱懸挑鋼梯屈曲分析、鋼柱腳施工階段驗(yàn)算以及大跨空腹桁架轉(zhuǎn)換結(jié)構(gòu)的受力分析等。

［關(guān)鍵詞］潛孔錘； 耐久性； 超長結(jié)構(gòu)； 組合鋼梁； 抗震性能化設(shè)計(jì)； 屈曲分析； 空腹桁架

中圖分類號(hào)：TU318文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)03-0079-06

Structural design and analysis of Hengqin Creative Valley

Gong Jian, Lin Jinghua

(Architecture Design and Research Institute of Guangdong Province, Guangzhou 510010, China)

Abstract:Foundation design of Hengqin Creative Valley was briefly introduced. The problem that prestressed pipe pile can hardly cross the thick hard backfilled stone layer was effectively solved by drilling holes with DTH hammer beforehand. The effect of length-diameter ratio on bearing capacity of pile was considered in the design, while the pull force of negative friction was reckoned in. Based on the corrosion of groundwater, durability requirements of pipe pile under the condition of drying-wetting cycle were proposed. Superstructure design was emphatically presented, including structural form selection and layout, steel connections and steel bar truss concrete slab composite steel girder, control measures of super long structure, overall calculation results, performance-based seismic design of single span frame, buckling analysis of cantilever steel stairs with single row of double columns and checking calculation of steel column base during construction as well as mechanical behavior of large-span vierendeel truss transfer structure.

Keywords:DTH hammer; durability; super long structure; composite steel girder; performance-based seismic design; buckling analysis; vierendeel truss

作者簡介：龔健，碩士，高級(jí)工程師，Email: gongjian_07@163.com。