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(1 廣州容柏生建筑結(jié)構(gòu)設(shè)計事務(wù)所 (普通合伙)， 廣州 510170；2 華潤置地有限公司， 北京 100020)
摘要: 華潤溫州老港區(qū)二期主塔樓為高 300m 的鋼筋混凝土框架￣核心筒結(jié)構(gòu)，底部采用鋼管混凝土疊合柱。 項目位于臨江高風(fēng)壓地區(qū)，高寬比接近 7. 5，抗風(fēng)設(shè)計難度大。 方案階段通過風(fēng)天平對比試驗進(jìn)行了外立面風(fēng)荷載優(yōu)化，減小了風(fēng)荷載輸入，使結(jié)構(gòu)體系更加簡潔高效。 由于場地巖層較深，卵石層厚達(dá) 70m，樁基設(shè)計中在當(dāng)?shù)剌^早采用了旋挖成孔和 C50 水下混凝土，改進(jìn)了后注漿技術(shù)措施，通過多樁型試樁比選確定了最優(yōu)樁基礎(chǔ)方案，實現(xiàn)了經(jīng)濟(jì)性和承載力的合理平衡。 因建筑方案存在單側(cè)退臺收進(jìn)，故對塔樓的水平變形進(jìn)行了研究，計算分析中考慮了豎向荷載、基礎(chǔ)不均勻沉降和混凝土收縮徐變的影響。 結(jié)果表明:對于超高層混凝土結(jié)構(gòu)，收縮徐變是需要特別重視的技術(shù)環(huán)節(jié)，考慮基礎(chǔ)沉降以后，配筋規(guī)律會發(fā)生變化。
關(guān)鍵詞: 風(fēng)荷載體型優(yōu)化； 樁基礎(chǔ)； 鋼管混凝土疊合柱； 收縮徐變
中圖分類號:TU318 文獻(xiàn)標(biāo)志碼:A 文章編號:1002￣848X(2022)04￣0022￣09
DOI:10. 19701 / j.jzjg.LS210102
Structural design of the main tower of China Resources Wenzhou Laogang district complex
XU Lin1， SUI Xiao1， SONG Ce1， LI Shengyong1， HU Weixiong2
(1 RBS Architectural Engineering Design Associates， Guangzhou 510170， China；2 China Resources Land Co.， Ltd.， Beijing 100020， China)
Abstract: The main tower of the second phase of China Resources Wenzhou laogang district is a 300m high reinforcedconcrete frame￣core tube structure， with steel tube￣reinforced concrete columns at the bottom. The project is located in ahigh wind pressure area along the river， with an aspect ratio close to 7. 5， which makes it difficult to design for windresistance. In the project phase， the wind load on the facade was optimized through the wind balance test， which reducedthe wind load input and made the structural system more concise and efficient. Due to the deep rock layer of the site and thethickness of the pebble layer up to 70m， the pile foundation design adopted the rotary digging hole and C50 underwaterconcrete earlier in the local area， and improved the post￣grouting technical measures. Optimal pile foundation scheme wasdetermined through the comparison and selection of multiple pile types. The optimal pile foundation scheme achieved areasonable balance between economy and bearing capacity. Due to the unilateral retreat of the building plan， the horizontaldeformation of the tower was studied， and the effects of vertical load， uneven foundation settlement， and concrete shrinkageand creep were considered in the calculation and analysis. The results show that for super high￣rise concrete structures，shrinkage and creep is a technical link that needs special attention. After considering the settlement of the foundation， thereinforcement law will change.
Keywords:shape optimization for wind load； pile foundation； steel tube￣reinforced concrete column； shrinkage and creep
第一作者:徐麟，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，主要從事超高層、綜合體、裝配式鋼結(jié)構(gòu)、連體建筑等復(fù)雜結(jié)構(gòu)設(shè)計工作，Email:xulin@ gzrbs.com。
[引用本文] 徐麟，隋曉，宋策，等. 華潤溫州老港區(qū)綜合體主塔樓結(jié)構(gòu)設(shè)計[J]. 建筑結(jié)構(gòu)，2022，52(4):22￣30. XULin， SUI Xiao，SONG Ce， et al. Structural design of the main tower of China Resources Wenzhou Laogang district complex[J]. Building Structure，2022，52(4):22￣30.
