- 摘 要
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(浙江省建筑設計研究院, 杭州 310006)
摘要: 杭州體育館是我國較早建成的馬鞍形單層索網(wǎng)體育建筑,屋蓋單層索網(wǎng)結構由 56 根承重索和 50 根穩(wěn)定索組成。 2022 年杭州亞運會將用作拳擊比賽主場館,需進行提升改造設計。 新屋面系統(tǒng)重量增加,導致原承重索最大拉力略超設計值,需要進行結構加固。 通過不同方案的比選,確定了新增 11 根拉索的改造方案。 進行了屋蓋索網(wǎng)結構從拆除到增索、新建屋面系統(tǒng)的全過程施工模擬分析。 結果表明,原屋面系統(tǒng)拆除過程中索網(wǎng)產(chǎn)生的較大上抬變形,必須設置配重以減小變形。 以拆除前的現(xiàn)狀為參考,原屋面系統(tǒng)拆除時索網(wǎng)上抬變形,新屋面系統(tǒng)安裝完畢后則又比現(xiàn)有位置下降 54mm,承重索的拉力略有增加。 屋蓋索網(wǎng)結構對風荷載和雪荷載較為敏感,地震作用和溫度作用下產(chǎn)生的變形和內力可以忽略不計。 此外,還進行了新索舊索索夾和新索端部節(jié)點的設計,并通過纏繞防腐膠帶的方式提升索網(wǎng)耐久性。
關鍵詞: 杭州亞運會; 杭州體育館; 單層索網(wǎng)結構; 馬鞍形屋面; 承重索; 穩(wěn)定索; 提升改造; 施工全過程模擬; 耐久性
中圖分類號:TU394 文獻標志碼:A 文章編號:1002-848X(2022)15-0098-07
DOI:10. 19701 / j. jzjg. ZIAD2210
Analysis and design on the upgrading retrofit of Hangzhou Gymnasium roof single-layercable-net structure for Asian Games Hangzhou boxing venue
YANG Xuelin, ZHOU Pinghuai, LI Xiaoliang, GAO Haibo
( Zhejiang Province Institute of Architectural Design and Research, Hangzhou 310006, China)
Abstract: Hangzhou Gymnasium is a sports building with saddle-shaped single-layer cable-net roof built earlier in ourcountry. The single-layer cable-net roof structure consists of 56 load-bearing cables and 50 stability cables. Now theupgrading and retrofit design should be carried out just because it will be used as a venue for games boxing competitions in2022 Hangzhou Asian Games. The weight of the new roof system increases, resulting in the maximum tensile force of theoriginal load-bearing cable slightly exceeding the design value, which requires structural reinforcement. Through thecomparison of different schemes, the reconstruction scheme of adding 11 new cables was determined. The simulationanalysis of the whole construction process was carried out from removing the original roof system to increasing the cables andbuilding the new roof system. The results show that due to the large lifting deformation of the cable-net during thedemolition of the original roof system, counterweights must be set to reduce the deformation. Taking the current situationbefore demolition as a reference, the cable-net was lifted and deformed during the demolition of the original roof system.After the installation of the new roof system, it was lowered by 54mm compared with the existing position, and the tensionof the load-bearing cable increased slightly. Roof cable-net structure is sensitive to wind load and snow load, and thedeformation and internal force caused by earthquake action and temperature action can be ignored. In addition, the designof the new cable and the old cable clip and the new cable end node was also carried out, and the durability of cable-net wasimproved by wrapping anti-corrosion tape.
Keywords:Asian Games Hangzhou; Hangzhou Gymnasium; single-layer cable-net structure; saddle-shaped roof; loadbearing cable; stability cable; upgrading retrofit; simulation of the whole construction process; durability
∗浙江省建設科研項目(2021K128、2020K010) 。
第一作者:楊學林,博士,正高級工程師,一級注冊結構工程師,主要從事復雜結構設計研究工作,Email:YXL85050009@ 163. com。
[引用本文] 楊學林,周平槐,李曉良,等. 杭州亞運會拳擊場館杭州體育館屋蓋單層索網(wǎng)結構提升改造分析與設計[ J] . 建筑結構,2022,52(15) :98-104. YANG Xuelin,ZHOU Pinghuai,LI Xiaoliang,et al. Analysis and design on theupgrading retrofit of Hangzhou Gymnasium roof single-layer cable-net structure for Asian Games Hangzhou boxing venue[ J] . Building Structure,2022,52(15) :98-104.
