[关键词】钢结构;施工过程;监测;模型修正;评估 [中图分类号】TU393 【文献标识码】A [文章编号】1002-8498(2015)02-0068-07 TheResearchStatus ofConstructionMonitoringSystemin Large and ComplexSteel Structures LuoYongfeng',Ye Zhiwu',Wang Lei² (1.School of Civil Engineering,Tongji Universty ,Shanghai200092,China; 2.The Architectural Design and Research Institute of TongjiUniversity,Shanghai200092,China) Abstract;In order to keep the safety and smooth going of construction process, it is essential and important to conduct construction control.Construction monitoring is the key technology of the construction control system and the research contents of construction monitoring include improvement and development of monitoring instruments,monitoring technology,the determination method ofmonitoring parameters, the arrangement method of measuring points, data process method,model updating technology and early warning and assessment system. This paper introduces the development of constructiontheory and technology and theresearch status,and then pointsout the existing problems and the solving methods.Finally,some hot research subjects about construction monitoring system are summarized. Key words:steel structures; construction processing; monitoring; model updating; assessment 0引言 研究,具有重要的理论意义和实用价值,也是目前 随着社会经济的发展,体现现代建筑艺术的大 迫切需要研究并及时获得成果的热点课题。
[关键词】地下工程;水电站;大型酮室;锚索;施工技术 [中图分类号】TU753[文献标识码】A[文章编号】1002-8498(2017)01-0116-03 Key Technology Research and Application for Large Underground CavernAnchorCableConstruction Qi Jieyi',Wu Haitao', He Mingwu² (1.China Gezhouba Group Three Gorges Construction Engineering Co.,Ltd.,Yichang,Hubei 443002,China; 2.China Three Gorges Projet Corporation,Bejing 100038,China) Abstract : There are a mass of prestressing cables in the arch-crown and side wall of Wudongde left bank underground powerhouse. The application of traditional anchor cable construction method in drilling, putting anchorrope into the anchor hole is large interference,time-consuming,laborious and with high safety risk. The authors solved the problem by improving the equipment and innovating the products. Application of anchor cable construction of large cavern key technology can efectively improve construction efficiency and quality, reduce the construction cost and security risk. Key words:underground; hydropower stations; large underground cavern; anchor cables; construction 1工程概况 锚索长度33m/36m,锚索钻孔方向均垂直于开挖 金沙江乌东德水电站是金沙江下游河段(攀枝面,钻孔直径均为165mm。
施工技术 2015年7月下 30 CONSTRUCTION TECHNOLOGY 第44卷第14期 D0I:10.7672/8js2015140030 多腔体人字形组合柱加工技术 高如国,周喜,徐丹 (中建钢构江苏有限公司,江苏靖江214532) [摘要]天津现代城(二期)A地块B区项目为超高层核心筒-框架钢结构,酒店区各轴线之间的钢柱支撑于分岔的 人字形组合柱上,该人字形组合柱板厚大、腔体多、焊缝纵横交错,受力及变形均非常复杂,同时又是支撑整个上部 结构的关键,因此,该人字柱的加工质量、制作精度尤为重要.介绍了人字形组合柱的加工制作工艺,并从下料、组 装、焊接等工序进行了详细的阐述. [关键词]高层建筑;组合柱;支撑;多腔体;加工工艺 [中图分类号]TU758.16 [文献标识码]A [文章编号]1002-8498(2015)14-0030-03 Processing Technology of Multi-cavity Herringbone Column Gao Ruguo Zhou Xi Xu Dan China Construction Steel Structure Jiangsu Co.Ltd.Jingjiang Jiangsu 214532 China) Abstract:Tianjin Xiandai City(Phase I)lot A area B project is a super high-rise building using core tube-steel frame structure.The steel columns between each axis of the hotel zone are supported by the herringbone columns.The herringbone columns are multi-cavity and use thick plates whose stress features and deformation are very plex.As the key parts of the whole building the quality and accuracy of the herringbone columns are especially important.This paper elaborates the columns' fabrication process from blanking assembly and welding ete. Key words:tall buildings;posite columns;supports;multi-cavity;processing 1工程概况 天津现代城(二期)A地块B区项目总建筑面 积约25万m2 用钢量约3万t 主要由办公、酒店公 寓2幢超高层塔楼及商业裙房组成,其中办公楼地 下5层,地上68层,高338m;酒店地下5层,地上48 层,高209.65m 建成后将成为天津市地标性建筑. 该项目为超高层核心筒框架钢结构,酒店区各轴线 之间的钢柱支撑于分岔的人字形组合柱上,该人字 形组合柱板厚大腔体多、焊缝纵横交错,受力及变 形均非常复杂,同时又是支承整个上部结构的关 键,因此,该人字柱的加工质量、制作精度尤为重 要.本文将从优化结构类型、制定合理的装焊顺 序、加强制作过程中的焊接控制等方面,按照下料、 图1工程三维效果 组装、焊接等工序详细阐述多腔体人字形组合柱的 Fig.1 3...
施工技术 2010年10月 108 CONSTRUCTION TECHNOLOGY 第39卷第10期 多层木结构古建筑榫卯节点拼装技术研究 张少华,姬东2,朱俊2,覆仲明2 《1.苏州工业园区科技发展有限公司,江苏苏州215131; 2.苏州狮山建容装工程有限公司,江苏苏州215131) 要]在木传构古建筑中,建筑的损坏多数由样卵节点的破怀而引起的,园此木梅之间的和豆结至关童要, 传洗的施工方法是先确定节点方式再进行拼辈施工,以致不间的节点梅造给施工带集了困难.大阁程并没有 一味的遥束传镜,而是根据诚工程构造,先确定拼梨汇样的施流程,再根据不同构件的受力要,选相应的样 卵结构并德合现代传构技术和工艺,进样脱方便施工,又能提高构件的承我能力和整个木德构体系的定性. [芙键词]木构古建筑:拼装:样卵节点 [中受分类]TU759 [文披标识]A [立章编]1002-8498(2010)10-0108-04 Research on Installation Technology of Tenon and Mortise Joint in Multi-floor Timberwork Ancient Building Zhang Shaohua' Ji Dong2 Zhu Jun2 Qu Zhongming? (1.Suzhou Industrial Park of Science and Technology Derelopment Co.Lad.Suzhou Jiangsu 215131 China: 2.Suzhou Erjian Construction Group Co.Lsd.Suzhou Jiangsu 215131 China) Abstract:The damages of timberwork ancient building is often caused by damages of tenon and mortise joints.So the connections of timber ponent are very important.Traditional construction technology is to determine the joint form and then to install the joint.Because of different joint forms the traditional construction teehnology is very diffieult.But the construetion of Mantra Pavilion breaks the routine. According to the construction strueture the construction sequence of tenon and mortise joint installation is determined.Based on the bearing capacity of different members the corresponding tenon and mortise structure are bined with the modern technology which ensure the bearing capacity and stability of timberwork. Key words:timberwork ancient building...
施工技术 2016年7月上 130 CONSTRUCTION TECHNOLOGY 第45卷第13期 D0I:10.7672/5js2016130130 多向可调节柔性连接式石材幕墙施工技术 杨军 (中铁建设集团有限公司,北京100040) [摘要]介绍了一种新的异形曲面石材幕墙施工技术,该技术运用多向可调节柔性背栓的多向可调节性,提高了异 形曲面石材的施工效率,异形曲面石材幕墙的外立面效果得以更好呈现. [关键词]幕墙:石材幕墙;柔性连接;施工技术 [中图分类号]TU767 [文献标识码]A[文章编号]1002-8498(2016)13-0130-05 Multi Direction Adjustable Connection Stone Curtain Wall Construction Technology Yang Jun China Railway Construction Group Co.Ltd.Beijing 100040 China) Abstract:This paper introduces a new type of surface stone curtain wall construction technology the technology used to adjust the flexible back bolt of the multi direction can be adjusted improved the construction efficiency of special-shaped curved surface stone irregular curved surface stone curtain wall facade effect can be better. Key words:curtain wall;stone curtain wall;flexible connection;construction 0引言 端开长条孔,通过不锈钢螺栓与竖龙骨连接.横龙 为解决传统异形曲面石材幕墙施工方法施工骨一端与角钢转接件焊接,中部及另一端用不锈钢 工期相对较长、施工作业条件约束较多、施工成本 螺栓与开长条孔的角钢转接件连接.通过竖、横龙 较大等难题,通过采用多向可调节柔性连接式异形 骨的柔性连接,最大程度避免石材幕墙龙骨因气温 曲面石材幕墙施工技术,摆脱了异形曲面石材幕墙 变化较大而产生变形,从而保证石材幕墙的安全性 对龙骨安装的高精度依赖,实现了石材单元的方向 及整体效果.异形曲面石材采用多向可调节柔性 可调,起到了提高工作效率、降低工程成本和提高 连接背栓结构通过石材挂件与横梁固定.多向可 板材安装质量的良好效果. 调节柔性连接背栓样式如图1所示. 本技术其核心工序为运用多向可调节柔性连 接式异形曲面石材幕墙施工技术对异形曲面石材 幕墙的立面图和效果图进行重新设计,绘制出满足 图1多向可调节柔性连接背栓 该技术要求的龙骨布置图和石材排版图,再进行现 Fig.1 Flexible connection back bolt 场龙骨安装和石材加工,通过特制的多向可调节柔 性连接式背栓实现龙骨和石材连接的技术. 多向可调节柔性连接背栓不但可以进行三维 1工艺原理 尺寸的调节(见图2),还可以全方位任意角度实现 多向可调节柔性连接式异形曲面石材幕墙在 石材板面与龙骨的柔性连接,而且还能吸收不同因 土建结构上预置埋板,埋件上焊接钢角码,用螺栓 素引起的变形应力.多向可调节柔性连接式石材 将[8竖龙骨固定,...
2015年9月上 施工技术 第44卷第17期 CONSTRUCTION TECHNOLOGY 29 D0I:10.7672/sgjs2015170029 复杂空间位置大尺寸拱肋节段直接起吊方法 张俊娟,李旭2 (1.杨凌职业技术学院交通与测绘工程学院,陕西杨凌712100; 2.中铁大桥局股份有限公司设计分公司,潮北武汉430050) [摘要]某钢箱拱结构中拱肋节段存在尺寸大、三向倾角的特点,采用缆索吊机施工时需完成节段翻身、空间角度调 整等过程.在对比总结已有起吊方法优缺点的基础上,改进缆索吊机的吊具及辅助部件,以使其适应空间角度调整 的需要,形成了适用于空间位置复杂的节段直接起吊方法.经验算,设计出的吊点、吊带符合相关规范的要求. [关键词]桥梁工程;拱桥;钢箱拱结构;吊装;应力分析;施工技术 [中图分类号]U445.4 [文献标识码]A [文章编号]1002-8498(2015)17-0029-04 Directly Hoisting Method Suitable for Large Size Arch Rib Segments with Complex Spatial Position Zhang Junjuan' Li Xu2 (1.School of Transportation and Surveying Engineering Yangling Vocational and Technical College Yangling Shaanxi 712100 China:2.Design Branch China Railway Major Bridge Engineering Co. Lad. Wuhan Hubei 430050 China) Abstract:Because of large size and three direction dip features of arch rib segment in one steel box arch structure the process of turning segments adjusting space angle and so on should be pleted by construction of cable crane.Based on the parison of advantages and disadvantages of existing lifting method sling and auxiliary ponents of cable crane are improved to make them meet the requirement of space angle adjustment and the directly hoisting method suitable for segments of plex spatial position is formed.The designed hanging point and sling are in accordance with relevant specification requirements by checking. Key words:bridges;arch bridges;steel box arch structure;hoists;stress analysis;construction 0引言 竖向 研究桥梁拱肋的截面形式为大尺寸钢箱,总体...
[关键词】地下工程;深基坑;支护;监测;施工技术 [中图分类号]TU753[文献标识码】A[文章编号]1002-8498(2013)13-0012-03 ConstructionTechnologyforaDeepFoundation ExcavationUnder ComplicatedConditions Zheng Ziguang,Li Lin,Cao Hong,Yang Shuhai,Ding Weiju (Chengdu Branch,China Construction Third Engineering Bureau Joint-stock.,Lad., Chengdu,Sichuan 610041,China) Abstract:A project was featured with plicated environment in limited operation space,which made the support design and the foundation excavation construction very difficult. Corresponding measures are adopted by coordination with related units for the engineering. Monitoring measures are adopted for the foundation excavation and surrounding buildings. Engineering practice shows that the foundation excavation is in a stable state, good effect is obtained. Key words:underground; deep foundation excavation; supports; monitoring; construction 1工程概况侧向补给,各地段富水性不一,无统一的自由水面。
2017年6月下 施工技术 第46卷第12期 CONSTRUCTION TECHNOLOGY 57 D0I:107672/8js2017120057 复杂环境中深基坑加固技术综合应用 王永华 (中铁建设集团有限公司,北京100040) [摘要]随着地下空间的不断开发,单一支护方法已难以满足复杂的基坑设计,而多种支护方式的综合应用已经变 得越来越普遍.以北京某深基坑工程为例,分析了深基坑支护结构发生较大位移、桩体开裂的原因,介绍了该深基 坑的原支护设计和加固所采用的支护方案.对加固处理后的监测数据进行分析,结果表明该深基坑支护设计方案 合理,满足要求. [关键词]深基坑;支护;加周;预应力错索;旋喷桩;施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2017)12-0057-04 Combined Application of Reinforce Technology in Deep Foundation Excavation WANG Yonghua China Railway Construction Group Co.Lid.Beijing 100040 China) Abstract:With the continuous development of underground space excavation the single and simple support form is difficult to satisfy the design of plex foundation excavation nowadays while the application of multiple support forms bee more and more popular in foundation excavation engineering.Based on a super-large deep foundation excavation in Beijing this paper analyzes the reasons of large displacement and pile cracks in super-large deep foundation excavation original support forms and reinforce support forms of deep foundation excavation including pile pre-anchor double-row piles long-span brace pre-lattice-anchor over-long chemical churning pile are introduced.Monitoring data analysis after reinforcement shows that the support forms are reasonable and meet the requirements. Key words:deep foundation excavation;supports;reinforcement;prestressed anchor;jet grouting pile;construction 0引言 移4.陈富强等[5经计算认为,坑内加固宽度可取 随着城市建设的高速发展,复杂地质条件及周06~08倍的铺桩嵌固深度,若再加大加固宽度对 边环境下的深基坑越来...
[关键词]改造工程;桩基础;拔除;全套管护壁拔除技术 [中图分类号】TU753 【文献标识码】A[文章编号】1002-8498(2013)03-0035-02 Application ofOldPilesExtractionTechnology Under ComplexEnvironment Feng Yonghong,Wang Jiahong,Yu Hong (Zhejiang No.1 Construction Group Co.,Lud.,Hangzhou,Zhejiang 310013, China) Abstract;Full-sleeve wall protection technology is a new technology to remove old piles in underground space. This technology is featured with simple operation,high efficiency,low construction cost and relatively noise, which means minimized influence to the environment. Based on an actual project, issues involved with the application of full-sleeve wall protection technology toremove old pilesunder plex environment are introduced including mechanical equipment,construction process and removal difficulties. Key words;reconstruction;piles; extraction;full-sleeve wall protection technology 1工程概况 碎消除法则是采用直接开挖的方式,利用镐头机、风 杭州国际大厦改造工程位于杭州市下城区体镐等破碎工具进行粉碎清障,该方法多用于原有桩位 育场路333号,地处杭州市中心繁华地段,周边建筑浅、数量少且有作业面保证的工程中。
[关键词]地下工程;障碍物;拆除;监测 [中图分类号】TU751.2 [文献标识码]A [文章编号]1002-8498(2013)07-0040-03 TreatmentofLargeUndergroundObstaclesinComplicatedEnvironment Wang Qian',Cheng Gang²,Ke Bumin',Li Hongwei (1.Zhejiang Greatwall Construction Group Co.,Ltd.,Hangzhou,Zhejiang 310016,China; 2.HangzhouConstructionEngineringQuality SupervisionOfice,Hangzhou,Zhjang310012,China) Abstract;A new building was built on the site of an original building.Within the site,parts of the basement structure and enclosures were not removed yet before the start of the new construction. Construction of foundation for the newbuilding and removal of the obstacles of the old building were performed at the same time.A segmental construction method was adopted.The underground obstacles were removed and then replaced by supports.Thismethod avoided the influence of the obstacleremoval on the new construction,controlled the excavation deformation,ensured the excavation safety and also shortened the construction period. Key words:underground;obstacle;removing;monitoring 1工程概况 新建工程基坑边线原地下室顶板-0.750 第1道支撑 杭州地铁1号线龙翔站上盖物业城市综合体位 原地下室外场 A 原地下室 原围护桩 于杭州市延安路以东,学士路以南,平海路以北,吴 >外墙 原回填士 原围护样 此区坝 地下连续墙 山路以西市中心最繁华的商业区内。
施工技术 2012年12月下 62 CONSTRUCTION TECHNOLOGY 第41卷第379期 复杂地质条件下扩孔式锚杆施工技术 肖合顺,刘献伟,李娟,周月,石伟 (中建三局第一建设工程有限责任公司,湖北武汉430040) [摘要]福州某工程地质条件复杂,采用传统锚杆进行支护,施工过程中发生了塌孔、堵孔、锚杆成型后无法满足设 计要求的抗拉拔力等问题.经过研究后,首先对错杆进行设计优化,增设锚杆导向装置;其次在锚杆自由段成孔时 采用钢套管引孔、PVC管护孔技术以防塌孔;最后错杆下锚时选用两种不同方法.通过采用以上施工技术克服了 地质条件复杂多样等因素,成功解决错杆施工中的众多难题. [关键词]地下工程;锚杆;塌孔;堵孔;导向头;引孔 [中图分类号]TU753.1 [文献标识码]A [文章编号]1002-8498(2012)24-0062-02 Construction Technology of Reaming Anchor in Complex Geological Condition Xiao Heshun Liu Xianwei Li Juan Zhou Yue Shi Wei (The First Construction Engineering Limited Company of China Construction Third Engineering Bureau Wuhan Hubei 430040 China) Abstract:A project in :Fuzhou is featured with plex geological condition and was supported by traditional anchor.During construction some problems occurred including hole collapse hole filling insufficient pulling resistance of the anchor after forming.After study to these problems the anchor was firstly optimized and a guiding equipment was added.Secondly when holes were formed for the free segment of the anchor steel sleeve pipe was used as guiding hole and PVC pipe as protecting hole to prevent hole collapse.Finally two different methods were used to send the anchor.These measures successfully solved the many problems of reaming anchor construction in plex geological condition. Key words:underground;anchor;hole collapse;hole filling;guiding end;guide hole 1工程概况 防塌孔;最后锚杆下错时选用两种方法:一为复钻 福州世欧澜山园工程为一大型住宅小区,其技术,即下锚前二次钻孔再注浆;二为利用螺杆压 基坑支护工程采用扩孔式预应力铺杆.基坑支护 缩机...
施工技术 2017年4月下 28 CONSTRUCTION TECHNOLOGY 第46卷第8期 D0I:10.7672/sgjs2017080028 复杂地质及周边环境超长全回转全套管灌注桩 施工技术* 周学民12,王兴康2,赵建立1 (1.中国二十冶集团有限公司,上海201999;2.宁波二十冶建设有限公司,浙江宁波315800) [摘要]针对福建罗源钢坯打捞工程围护桩施工遇到的问题,分别从复杂地质条件下全套管掘进钻孔工艺、桩身垂 直度控制、混凝土凝固时间及拔管控制等方面,提出了长度达63m的超长全回转全套管灌注柱施工技术.基坑开 挖完成后,围护桩的成桩质量及效果明显优于泥浆护壁灌注桩,验证了技术的可行性.该技术无污染、适用条件 广、对周边扰动小、成桩效果好,能够有效在各种复杂地质条件及周边环境下施工,具有良好的社会效益和经济 效益. [关键词]全回转全套管;灌注柱;掘进;垂直度;拔管;施工技术 [中图分类号]TU476.3 [文献标识码]A [文章编号]1002-8498(2017)08-0028-04 Construction Technology of Ultra Long Filling Pile with Full Rotary Casing Method Under Conditions of Complex Geology and Surrounding Environment ZHOU Xuemin'.2 WANG Xingkang2 ZHAO Jianli' (1.China MCC20 Group Co. Lad. Shanghai 201999 China;2.Ningbo Ershiye Construction Co.Ltd.Ningbo Zhejiang 315800 China) Abstract:During the construction of salvage billet project in Luoyuan Fujian the technology of ultra-long filling piles with full rotary casing TUFPFRC)was adopted to build the retaining structure.The difficulties encountered during construction were discussed.The drilling technology verticality control concrete solidification speed and case pulling control were studied in detail in conditions of plex geology and surrounding environment.The TUFPFRC for the length of 63m was proposed.According to the test results the quality of filling pile by TUFPFRC was much better than the one by the method of slurry wall.The TUFPFRC has many advantages such as non-pollution wide application condition small disturbance to surrounding and good effect of pile.This technology can be used to construct filling pile for various conditions plex geology and surrounding environment.Social and economic effectiveness is significant. Key words:full rotary casing;filling pile;drilling;verticality;case pulling;construction 0引言 浆护壁,具有环境友好、适用地层广、对周边土体影 全回转全套管灌注桩施工技术是利用全回转 响小等优点,特别适用于淤泥、卵砾石及全风化基 全套管钻机,将预制好的钢套管通过360°回转压人 岩等多种地层2(也称为万能工法). 地层至一定深度,通过冲抓斗将钢套管内的土体取 目前,全回转全套管灌注桩深度较浅,大多在 出,再逐步压入套管成孔,最后吊放钢筋笼、灌注混 40m范围内.虽然也有桩长超过40m的情况,但钢 凝土、起拔钢...
2016年7月上 施工技术 第45卷第13期 CONSTRUCTION TECHNOLOGY 97 D0I:10.7672/5j52016130097 复杂地层中大直径泥水盾构开挖面失稳及处理研究 赵峻 (上海隧道工程有限公司,上海200232) [摘要]南京地铁某标段区间隧道工程采用了1m级大直径泥水气压平衡盾构施工,介绍了该泥水气压平衡式盾 构在含砾中粗砂层和粉细砂地层中开挖面失稳的两种现象及处理技术.对于开挖面失稳的现象和原因进行了分 析,确定了失稳后舱内坍塌造成泥水管路堵塞的处理方法以及如何重新建立泥水平衡,总结了防止失稳的掘进技 术措施,最终顺利完成盾构掘进. [关键词]地铁;盾构;泥水气压平衡盾构;开挖面;失稳;施工技术 [中图分类号]U455.43 [文献标识码]A [文章编号]1002-8498(2016)13-0097-04 Study on Tunnel Face Failure in the Excavation of Large Diameter Slurry Shield Tunnels in Complex Stratum and Treatment Measures Zhao Jun (Shanghai Tunnel Engineering Co.Ltd.Shanghai 200232 China) Abstract:A 11m diameter slurry shield was used in the excavation of a river tunnel of Nanjing Metro. Two phenomenon of tunnel face failure of this machine in gravels and fine sand ground and correspondent treatment measures are introduced.The failure phenomenon and mechanism of tunnel face are discussed. The treatment measures of slurry pipe blockage due to the collapse in the chamber when the face failed as well as the reestablishment approach of slurry balance are determined.And excavation technical measures to prevent the failure of tunnel face are summarized.The excavation of the tunnel was successfully finished. Key words:subways;shields;slurry pressure balanced shield;excavation surface; instability;construction 盾构法隧道施工中,开挖面的稳定是能否连10200mm 环宽2000mm.该盾构本体长约13m 续、正常、安全施工的前提之一,而泥水气压平衡盾(车架段约100m) 最大推力139820kN 最大推进 构依靠加压泥水支护开挖面土体,其对稳定性的控 速度50mm/min 刀盘额定扭矩21174kNm 脱困扭 制要求更高,尤其在复杂地层中进行泥水盾构施矩25246kNm 主驱动密封与盾尾密封均为...
2016年8月下 施工技术 第45卷第16期 CONSTRUCTION TECHNOLOGY 91 D0I:10.7672/8js2016160091 复杂倒锥形钢管柱制作安装技术研究与实践 陈治,范彩霞,孔维拯 (中建钢构有限公司,广东深创518040) [摘委]本工程采用倒雅形钢管柱支承结构,其柱底角接触关节轴承支座制作容装工艺夏杂,柱项多维销和连接节 点精度要求高.遥过时柱内水管、钢管、轴承支座、柱项节点的分段焊装工艺的整体研究设计,实现了内管外 柱同步吊装与检正,保证了杂倒雅形钢管柱的容装精度. [并键词]钢结构;倒推形;钢柱;装;精度 [中图分类号]TU758.1 [交献标识码]A[交章编号]1002-8498(2016)16-0091-05 Research and Practice About Inverted Conical Steel Tube Column Installation Technology Chen Zhi Fan Caixia Kong Weizheng China Construction Steel Structure Co.Lad.Shenzhen Guangdong 518040 China) Abstract:The project uses the inverted conical steel tube column supporting structure its installation process of the bottom column joint bearing manufacture is plex and the multi pin connection nodes requires high accuracy as well.The rain water pipe in column steel sleeve bearing support the nodes at the tops of columns of subsection welding process were designed and studied.Through the above research work the internal and external column synchronous lifting and correction was realized and the installation precision of the plex inverted conical tube column was ensured. Key words:steel structures;inverted conical;steel tube column;installation;precision 1结构特征 本工程屋盖采用带有加强架的斜交斜放网 架结构,主要由104根倒雅形钢管柱支承(见图1). 钢管柱最大截面壶径2200mm 最大壁厚42mm 柱 内安装有不锈钢雨水管和钢套管,施工交叉点多而 复杂.钢柱最大长度30.5m 标准柱距36m×36m 在柱距非常大的情况下其柱底节点承受最大竖向 图1屋盖结梅单元示意 荷载达到8000kN 水平椅载达到4200kN 在极端 Fig.1 The roof structure element 荷载工况下,甚至还可能出现垂直向上的拔力,给 场吊装的方法施工,这样使得柱项销轴连接节点和 施工带来极大园难. 柱底角接触关节轴承的预定装配精度实现验为圈 钢管柱...