2016年7月上 施工技术 第45卷第13期 CONSTRUCTION TECHNOLOGY 37 D0I:10.7672/5js2016130037 深基坑围护结构变形动态控制研究* 徐良英,许洋2,徐长节2 (1.杭州市城东新城建设投资有限公司,浙江杭州310000:2.华东交通地大学土木建筑学院,江西南昌330013) [摘要]基坑开挖过程中很多不确定因素会导致过大变形,因而围护结构应该根据实时监测数据进行调整.以某 基坑工程为例,原拟设3道水平钢筋混凝土支撑,因受工期限制,最终减为2道.根据现场信息及时调整施工 技术措施,并综合采取多种约束围护桩水平位移的措施.结果表明,这些措施可有效控制围护桩的水平位移及保 证围护结构整体的稳定性,效果显著. [关键词]地下工程;基坑;围护结构;变形;动态控制;监测 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2016)13-0037-04 Study on Dynamic Displacement Control of Retaining Structure in Deep Foundation Excavation Xu Liangying' Xu Yang2 Xu Changjie2 (1.Chengdong Xincheng Construction Investment Co.Lad.Hangzhou Zhejiang 310000 China;2.School of Ciril Engineering and Architecture East China Jiaotong Unirersity Nanchang Jiangxi 330013 China) Abstract:A lot of uncertain factors in the excavation process will lead to excessive deformation thus the design of deep foundation excavation should be adjusted dynamically according to the real-time monitoring data.This paper presents a case study on dynamic design of foundation excavation.The original design adopted three levels of reinforced concrete supports but the final design uses two layer supports for the reason of construction period.In the period of construction designers adjust construction technology timely based on feedback information from field and use a variety of restraint measures aiming at controlling the horizontal displacement of retaining piles.The result of construction shows that these measures are feasible and effective. Key wo...
2010年10月 施工技术 第39卷第10期 CONSTRUCTION TECHNOLOGY 15 深圳证券交易所营运中心钢结构施工技术 陈治,王朝阳,程鹏,叶滨 (中建钢构有限公司,广东深518040) [接要]深树证券交易所营运中心工程采用型钢混凝土结梅,其裙楼部分为巨型意铜粉架结柏,工程体量夫,施 工难点多.为解决悬挑平台的施工难题,位用了两台M1280D塔式起童机进行钢结吊梨.详细介了裙楼的颗 变形分析,裙钢结构的梨,型节点的拼技术,超愿铜板的焊接技术及砂箱卸载技术等多项关键技术,到下 了诸多工程亮点,保证了钢传构工程选工进度和工程质量. [关键词]钢传构:母结构:巨型粉架:施工技术 [中分类]TU758 [文标识移]A [文章编号]1002-8498(2010)10-0015-06 Construction Technology of Steel Structure in Shenzhen Stock Exchange Operating Center Project Chen Zhi Wang Chaoyang Cheng Peng Ye Bin (China Construction Steel Structure Co.Ltd.Shenzhen Guangdong 518040 China) Abstract:Shenzhen Stock Exchange Operating Center project is steel-reinforced concrete structure and its podium in particular is posed of giant cantilever truss which has large engineering dimension and many construction difficulties.In order to solve construction difficulties of cantilever truss two M1280D tower cranes are used to lifting steel structure.Some key technologies are introduced including deformation analysis of podium steel installation of podium assembly technology of giant joint welding technology of ultra-thick steel plate and unloading technology by sand box which ensure the construction progress and the quality of the project. Key words:steel structure:cantilever structure:giant truss:construction technology 1工程概况 2458 深创证券易所营运中心工程地下3层,地上46 层,立面外形呈“中”字形,总建筑面积约26.24万m2 其中地下室约8万m.主采用框简结构,外框采用 10F-面 型钢混凝土密柱结构,建筑高度245.8m 招升裙楼 采用全焊接箱形截面巨型钢粉架结构,节点为钢板焊 6242 接节点,裙楼东西面下方设粉架简支撑,裙楼东西母挑 -10F 36m 南北悬挑22m.巨型粉架下下表...
2010年10月 施工技术 第39卷第10期 CONSTRUCTION TECHNOLOGY 21 深圳证券交易所营运中心超厚钢板焊接技术 王朝阳,陈治,杨松,陈勇 (中建钢构有限公司,广东深州)518040) [要]深证养立易所营运中工程升裙德构为全焊接巨型悬挑铜粉架结构,粉架由巨型钢板焊接节点和 箱形截面施杆拼装而成.施工中采用,体保护半自动焊接技术,多人同步对称分段、分层多焊接方法.保 介将了巨型衔架的焊接顺序,保证了工程质量. [关键词]臣型粉架:焊顺序:得板焊接:焊接人孔 [中图分类号]TU758.162 [文献标]A [文章编号]1002-8498(2010)10-0021-03 Welding Technology of UItra-thick Steel Plate in Shenzhen Stock Exchange Operating Center Project Wang Chaoyang Chen Zhi Yang Song Chen Yong (China Construction Steel Structure Co.Ltd.Shenzhen Guangdong 518040 China) Abstract:The uplift podium of Shenzhen Stock Exchange Operations Center Engineering is a giant cantilever truss which are posed with giant welding steel plate joints and steel box section chords. The CO semi-automatic welding gas protection is used during construction.The welding method and welding sequence of giant truss are introduced which ensure the quality of the project. Key words:giant truss:welding sequence:thick plate welding:welding manhole 1工程概况 深证券交易所营运中心裙楼平面尺寸162m× 一塔楼 98m 升至36m高空,形成高空挑结构,如图1所 升裙楼 示.裙楼采用14榴空间正交巨型全焊接箱形截面钢 行察结构,采用钢板焊接节点,节点最童172,最大箱 形杆件截面尺寸4.2mx2m 场焊接量大.裙楼东画 面下方设粉架筒支撑,东西方向悬挑36m 南北方向悬 挑22m.巨型粉架下孩下表面标高36.87m 项面10层 桁架筒 标高62.42m.裙楼主粉架用钢量1.4万t 最大板 a工程效果 b裙楼整体透视 厚100mm 主要采用Q345B Q345GJB钢材,60mm厚以 图1深社养易所运营中世王程 上厚板厚度方向满足Z25的要求. Fig.I Shenzhen Stock Exchange Operating Center 2焊接施工唯点 3)焊接人孔板设置主粉智箱形截面杆件侧面开 1)厚板焊接裙棒主粉架采用铜板焊接节点和箱 设人孔,将仰焊改为平角焊.人孔尺寸设置需满足人 形截面弦杆拼装纽成,节点形式杂,板厚转大,最大 员操作和减小应力. 100mm 焊接接头为T够接头和板对接接头两种形式, 3主焊接技术 其中T形接头焊健长度最大7m.超厚钢板、超长焊缝 3.1厚板焊接...
[关键词】钢结构:悬挑钢桁架;临时支撑胎架:标准化组装胎架 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2011)14-0023-04 DesignandApplicationofStandardizedAssembledFrame in Trading Center ofShenzhen StockExchange Wang Chaoyang,Chen Zhi,Ye Bin,Yang Song,Ji Hongxi (China Construction Stee Structure Co.,Lad.,Shenzhen, Guangdong 518040, China) Abstract;The podium of Trading Center of Shenzhen Stock Exchange project is lifted 36 meters from ground. The podium is large-span space cantilever steel truss assembled in high-sltitude. The bottom chord of the cantilever part in the steel truss has 46 joints. The cantilever structure is instailled by selting temporary support frame under the joints. The frame is lattice steel pipe structure with monolithic standard members to be assembled as 6m or 4m standard sections on-site. Each standard section in vertical is connected by flange bolts. Two-layer connecting trusses are set between frames,and steel tension rod is set at the end span of the frame to assure local and the whole stability. The standard assembly frame can be used repeatedly as the large supporting system, and it can be simply assembled and conveniently saved, which can lower construction cost. Key words;steel structure; cantilevered steel truss; temporary support frame; standardized assembled frame 1工程概况 2施工方案 深圳证券交易所营运中心工程地下3层,地上 经过方案比选,采用“胎架支撑、高空原位拼装 46层,立面呈“中”字形(见图1),总建筑面积约 法”进行裙楼钢结构安装。
2011年2月 施工技术 第40卷第3期 CONSTRUCTION TECHNOLOGY 71 深圳湾体育馆焊接合拢对结构受力性能的影响分析 郭彦林,赵思远 (汤华大学土木工程,北京100084) [摇]焊接接的料件在焊健冷却后会存杆件中产生残余变形与残会应力,其焊接构件的残余变形一般会曼到 周围构件的来作用而转化为构中的残余内力.运种在结构中新情的附加残余内力对传构叠力性能极其不利, 甚至得邮部分杆件受压属服或爱断裂而美.首先研究了单个非约束由构件的焊接收缩形规律,提出了 缩变形计算公武:其次提出了一种日形刚架棋型,通过对横梁实接对接焊研究焊接连接中焊继尺寸、焊接顺席以及 周边构件的约束强弱对Π形制密体系焊接成型状态的彩响.最后以深例湾体育场焊接含就过程为研完对象,通过 等牧量原则将上迷传果应用到体育场的合挑中,出焊牧对就继周围杆件内力的影嗨不容忽视. [关键词]体育馆;焊接:残余内力:等收馆量质则 [中图分类号]TU758.162 [文献识码]A [交章编号]1002-8498(2011)03-0071-05 Welding Effects on Roof Closure Process of Shenzhen-wan Stadium Guo Yanlin Zhao Siyuan Department of Civil Engineering Tsinghua Unirersity Beijing 100084 China) Abstract:High residual stresses of members will lead to residual internal force and deformation in the structures when the member-welding is constrained by around members.This additional residual internal force in the structure may result in structural member yielding due to pression or cracking due to tension.The authors focuse on the effect of roof welding closure process of Shenzhen-wan Stadium. Welding shrinkage deformation of a single tube is studied firstly and a proposed formula for predicting welding shrinkage deformation is drawn.Then a typical H-shaped frame model is proposed to investigate the effect of welding size and welding sequence of a single beam due to the constraint provided by adjacent members.The conclusion is drawn and is used in the roof welding closure process of Shenzhen- wan Stadium based on the equal welding deformation principle.Si...
施工技术 2011年10月上 36 CONSTRUCTION TECHNOLOGY 第40卷第350期 深圳平安金融中心超深基坑运土坡道设计与施工 李洪海,周宇 (中建一局集团建设发展有限公司,北京100102) [摘要]以深圳平安金融中心工程为例,介绍了在不影响超深基坑内支撑结构体系受力条件下运土坡道的设置. 详细介绍了坡道设计考虑的因素,大圆环运输通道置换与内支撑的施工配合,坡道通往装土点临时通道的布置及 转换技术.在施工过程中采用了洗轮机及其他环保措施,取得了良好的效果. [关键词]高层建筑;地下工程;基础工程;深基坑;运土坡道;设计;施工 [中图分类号]TU753.1 [文献标识码]A[文章编号]1002-8498(2011)19-0036-03 Design and Construction of Earthmoving Ramp of Ultra-deep Foundation in Shenzhen Ping'an Financial Center Li Honghai Zhou Yu (China Construction First Division Group Construction Development Co.Lad.Beijing 100102 China) Abstract:Based on Shenzhen Ping'an Financial Center project authors introduce the earthmoving rump setting without influence on structure system of ultra-deep foundation inner support.Factors for rump design cooperative construction of transportation passage replacement and inner support layout of temporary passage and conversion technology are introduced in detail.Authors adopt washing machine and other environmental protection measures which obtain good effect. Key words:tall buildings;underground;foundation;deep foundation excavation;earthmoving rump: design;construction 1工程概况 深圳平安金融中心工程位于深圳市福华路与 益田中路交界处,基坑最深处-33.5m 土方量为52 万m3.基坑平面呈不规则形状,北侧为已经运营的 地铁1号线购物公园站,基坑支护采用大直径护坡 大圆环 内径62.5m 桩加旋喷、摆喷帷幕柱,钢筋混凝土内支撑形式,内 支撑共设4道,局部5道(靠北侧地铁车站).基坑 钢筋混凝土结构内支撑设计为南北2个圆环 内支撑 Monitoring 北半部为主楼范围大圆环,内径62.5m 护坡桩 旋喷幕 南半部为裙楼范围小圆环,内径为60m 如图1所 小圆环 示.施工时设计要求混凝土内支撑强度必须达到 内径60m 运土坡道 90%后方可向下挖土. 2运土坡道设计 2.1坡道设计考虑因素 图1深圳平安金融中心基坑支护平面 1)坡道的设计位置不能影响内支撑体系的整 Fig.1 Found...
施工技术 2016年3月上 A CONSTRUCTION TECHNOLOGY 第45卷第5期 D0I:10.7672/sgjs2016050004 深圳平安金融中心塔式起重机支承架 悬挂拆卸技术* 陆建新,王川,胡攀,霍宗诚,张贺,杨定国 (中建钢构有限公司,广东深圳518040) [摘要]针对超高层建筑中塔式起重机的特点,塔式起重机支承架拆卸是保障超高层施工的重要前提.对塔式起 重机支承架拆卸方式进行了研究,对于常规拆卸方法的缺点开展分析,提出了一种新型悬挂拆卸施工技术.该技 术利用索具替代塔式起重机作为拆卸工具,支承架悬挂于空中等待周转,节约了堆料场地,缩短了施工工期,保证 了塔式起重机支承架拆卸施工安全、高效地进行. [关键词]高层建筑;塔式起重机;支承架;悬挂;拆卸;施工技术;有限元分析 [中图分类号]TH213.3 [文献标识码]A [文章编号]1002-8498(2016)05-0004-05 Disassembly Technology of the Tower Crane Support Frame by Suspension for Shenzhen Ping'an Financial Center Building Lu Jianxin Wang Chuan Hu Pan Huo Zongcheng Zhang He Yang Dingguo China Construction Steel Structure Co.Ltd.Shenzhen Guangdong 518040 China) Abstract:Based on the characteristics of tower crane in super tall building construction the tower crane support frame disassembly is the important precondition of tall building construction.This paper studied the disassembly manner of tower crane support frame analyzed the disadvantages of conventional disassembly manner and proposed a novel disassembly technology by suspension.The technology took advantage of the rigging instead of tower crane as the disassembling tool and suspended tower crane support frame in the air for cycle which can save the stacking area shorten the construction period and ensure the safety and efficiency of the tower crane support frame in disassembly construction. Key words:tall buildings;tower cranes;support frame;suspensions;disassembly;construction;finite element analysis 0引言 自爬升式塔式起重机多支承于核心...
[关键词】基坑工程;监测;支护;卸载 [中图分类号]TU753 [文献标识码]A [文章编号】1002-8498(2013)09-0024-05 DesignandConstructionMonitoringofShenzhen PAFCDeepFoundationExcavation Zhou Yuqi',Yang Yaohui',Li Wenjun²,ShuXianqing²,Liu Weiwei (1.China Construction First Division Construction&Developmen Co.,Ltd.,Bejing 100102,China; 2.Shenzhen Ping'an Financial Center Construction&Development Co.,Ltd.,Shenzhen,Guangdong 518048,China) Abstract:The height of Shenzhen Ping'an Financial Center building is 660m,with foundation excavation area of 17 150m²and excavation depth of -33.5m.The form of the retaining and protecting structure for foundation excavation is reinforced concrete piles and bracing system & soil anchor,bining with rotary jet grouting pile and sleeve valve pipe grouting to cutting off water. The gap between the rod of the first level bracing system was filled with reinforced concrete plate.Reinforced concrete loop ramp was used for soil excavation.The results of construction monitoring indicated that the deformation of retaining structure and the surrounding environment was controlled in allowable range of design requirements, guaranteeing the normal operation of the subway line 1 of Shenzhen. Key words:foundations;monitoring; supporting;unloading 1工程概况 深圳平安金融中心(Ping'anFinancialCenter一 简称PAFC)是以甲级写字楼为主的综合性大型超 高层建筑,占地面积18931.0m²,总建筑面积46万 m²。
2015年5月上 施工技术 第44卷第9期 CONSTRUCTION TECHNOLOGY 119 D0I:10.7672/sgjs2015090119 深圳平安金融中心主塔楼超高施工电梯配置技术* 左强,周予启,史媛,孙若晖,李彦贺 (中建一局集团建设发展有限公司,北京100102) [摘要]深圳平安金融中心主塔楼建筑高度660m 地上118层.结构和装修施工期间,在核心筒内布置6台高速双 笼施工电梯,用于材料和人员的垂直运输.施工后期,依次启用4台正式电梯,分级分层接力,解决施工电梯拆除 后的垂直运输问题.实践证明,本工程电梯布置合理,能满足现场材料运输需要,保证施工顺利进行,结构、装修的 施工工期均在计划之内. [关键词]建筑机械;高层建筑;电梯;垂直运输;正式电梯转换 [中图分类号]TU61 [文献标识码]A [文章编号]1002-8498(2015)09-0119-03 Construction Elevator Configuration Technology of Shenzhen Ping'an Financial Center Building Zuo Qiang Zhou Yuqi Shi Yuan Sun Ruohui Li Yanhe (China Construction First Group Construction Development Co.Lad. Beijing 100102 China) Abstract:The height of Shenzhen Ping'an Financial Center building is 660m and the ground layer is 118.During structure and decoration construction six high-speed double cage construction elevators are arranged in the core barrel used for vertical transport of materials and personnel.At the end of construction period four formal elevators are enabled then the elevators serviced hierarchical relay to solve the problem of vertical transportation after the construction elevators demolition.It proves that the elevators are arranged reasonably and can meet the requirements of on-site materials transportation and guarantee the successful construction.The construction time of structure and decoration are controlled in planned limits. Key words:construction equipment;tall buildings;elevators;vertical transportation;formal elevator conversion 1工程概况 墙单元板块、机电小型设备及零散材料、施工人员 深...
施工技术 2010年6月 116 CONSTRUCTION TECHNOLOGY 第39卷第6期 深圳大运会主体育场钢结构吊装方法研究应用 严小霞,陈韬,徐聪,陈江 (中建钢构有限公司,广东深圳518040) [摘要]针对深圳大运中心主体育场钢结构工程单层折面空间网格的结构特征和施工难度,通过吊装工况的有限 元模拟计算和实际吊装情况的对比分析,重点研究了高空散件吊装和高空分块吊装在施工过程中的利与弊,并总 结出两种吊装方法在施工中互相结合、取长补短、灵活运用的优点和实践经验. [关键词]钢结构;单层折面空间网格;散件吊装法;分块吊装法 [中围分类号]TU745.2[文献标识码]A【文章编号]1002-8498(2010)06-0116-03 Study on Installation Method for Steel Roof of Main Stadium of Shenzhen Students Sports Center Yan Xiaoxia Chen Tao Xu Cong Chen Jiang (China Construetion Steel Structure Corporation Shenthen Guangdong 518040 China) Abstract:Based on structural characteristics and construction difficulties of spatial single-layer folded- surface grid structure of steel structure in main stadium of Shenzhen Students Sports Center the advantages and disadvantages of section lifting and block lifting in high altitude are researched during the process of construction by parison analysis between FEA simulation calculation under lifting load and actual lifting.Furthermore advantages are summed up about mutual bination adding to the shortings and flexible application between two lifting methods. Key words:steel structure;single-layer folded-surface grid structure;section lifting;block lifting 1工程概况 重4000t.结构的冠峰、内环位置为焊接节点,共40个 深圳大运会主体育场钢结构形式为单层折面空间(见图2).钢构件通过承力节点连接形成若干三角形 网格结构,平面形状为285m×270m椭环形,最高点高结构面,每13个三角形结构面构成一个安装单元,相 44.1m 在不同区域悬挑长度为51.9-68.4m 设计总似的安装单元通过椭形循环排列形成稳定的复杂空间 用钢量约18000t. 结构体系(见图3),即单层折面空间网格结构.结构 钢屋盖分为立面、马鞍形外圈、内圈3个部分,由的主杆件为铸钢管、焊接钢管及铸钢管焊接钢管,直 20个形状相近的结构单元呈双...
2010年8月 施工技术 第39卷第8期 CONSTRUCTION TECHNOLOGY 55 深圳大运中心主体育馆钢屋盖施工工况模拟分析 遇瑞 (上海宝冶集田有限公司,上海200941) [摘要]计算机控制液压同步滑移技术是近年来很多大跨度空间钢结构施工选用的安装方法.以深圳大运中心主 体育馆钢结构的累积旋转滑移施工为例,对结构滑移和胎架卸载施工工况进行模拟分析,指出滑移过程中,结构最 不利杆件应力比为0.375,胎架卸载过程中,结构最不利杆件应力比为0.682,均满足施工安全要求.并将计算结果 与现场监测结果进行比较,说明有限元模拟的正确性. 【关键词]深圳大运中心;主体育馆;钢屋盖;滑移;卸载;模拟分析 [中图分类号]TU311.41 [文献标识码]A[文章编号]1002-8498(2010)08-0055-03 Construction Conditions Analysis on Steel Roof in Shenzhen Universiade Sports Center Main Gymnasium Yu Rui (Shanghai Baoye Group Co. Lad.Shanghai 200941 China) Abstract:Hydraulic synchronous sliding technology controlled by puter is extensively used in large- span spatial steel structure construction in recent years.Taking accumulated rotation sliding construction for steel roof of Shenzhen Universiade Sports Center Main Gymnasium as example the construction conditions for sliding and jig unloading are simulated and analyzed and the results show that during sliding the stress ratio of the most unfavorable bar is 0.375 and that is 0.682 during jig unloading and both of them can meet safety requirements.Moreover the calculation results and monitoring results are pared to indicate the accuracy of finite element simulation method. Key words:Shenzhen Universiade Sports Center;main gymnasium;steel roof;sliding;unloading; simulation analysis 计算机控制液压同步滑移是一项新颖的结构安装35mm 主结构拉环钢管ZJG14为Q390B 其余构件材 施工技术.它通过计算机控制,并结合液压同步新原质均为Q345B;次结构为矩形钢管,截面尺寸形式较 理,可将成千上万吨的构件拼装后,滑移到预定位置安多,厚度为8~32mm 材质均为Q235B.结构轴测图如 装就位. 图1所示. 我国于20世纪90年代开始自主研...
2015年11月上 施工技术 第44卷第21期 CONSTRUCTION TECHNOLOGY 51 D01:10.7672/sgjs2015210051 深圳南山幕墙预应力结构施工技术研究 张东,王磊2,孙善星,卜龙瑰3 (1.北京市建筑工程研究院有限责任公司,北京100039;2.中交第二公路勘察设计研究院有限公司, 湖北武汉430058;3.北京市建筑设计研究院有限公司,北京100045) [摘要]深圳南山幕墙预应力结构由竖向拉索与水平鱼腹式空腹桁架构成,基于MIDAS/Gen对结构进行了受力和 变形分析,确定了张拉时每层拉索的预应力值.采用“分层安装提升、逐层调整索长、一级张拉成型”的施工方法. 该方法避免了预应力施工和玻璃安装施工的交叉进行,从而保证了结构施工过程中的安全. [关键词]装饰装修;幕墙;变形;预应力;索长调整;施工技术 [中图分类号]TU767.6 [文献标识码]A[文章编号]1002-8498(2015)21-0051-04 Research on Construction Technology of Prestressed Structure in Curtain Wall of Shenzhen Nanshan District Zhang Dong' Wang Lei2 Sun Shanxing' Bu Longgui' (1.Beijing Building Construction Research Institute Co.Lid.Beijing 100039 China;2.CCCC Secon Highway Consuluants Co. Lad.Wuhan Hubei 430058 China;3.Beijing Institute of Architectural Design Beijing 100045 China) Abstract:The curtain wall prestressed structure of Shenzhen Nanshan district is made of vertical cables and vierendeel truss of horizontal lenticular type.Based on software MIDAS/Gen structure stress and deformation were analyzed to determine the prestressed value of each cable.Using construction method of layered installation and ascension adjusting the cable length layer by layer tensioning cables at one time to form structure model the cross construction of prestressing and glass installation can be avoid to ensure the safety in construction process. Key words:decoration;curtain wall;deformation;prestressing;adjustment of cable length;construction 1工程概况 深圳南山项目位于深圳市南山区海德二道与 后海大道交汇处.主体结构为中庭塔楼...
[关键词]深圳北站;钢构件;制作安装;悬挑桁架;施工技术 【中图分类号】TU391 【文默标识码】A [文章编号]1002-8498(2010)08-0116-05 Fabrication andInstallation Technology ofSteelStructure Components in Shenzhen North Railway Station Yin Weize, Li Qinggang,Peng Yongfeng (Guangdong Hangxiao Steel Structure Co. , Ld. , Zhuhai, Guangdong 519000, China) Abstract;Shenzhen North Railway Station is a large project of high-speed railway engineering. The main body ofthis project dopts steel struturewhose ponents arediffcult tobefabricated an installed especially for main station building,which has characteristics of large span, large cantilever, large section and heavy body. It is difficult for construction. According to the structural characteristics, inverted sequence construction method is applied for main station building. For upper roof truss, the construction method of partial transportation, assembling on ground, integral lifing and assembly at high altitude is applied. For lower frame, the construction method of assembling on ground and assembling at high altitude is used. And for canopy, assembling at high altitude is adopted. The fabrication and processing of steel ponents, assembling on site and installtion are introduced in detail. Key words;Shenzhen North Railway Station; steel ponent; fabrication and installation; cantilever truss; construction technology 1工程概况 总用钢量6.3万t。
[关键词】高层建筑;核心筒:钢管混凝土柱:应力;温度:监测;模拟分析 [中图分类号]TU158;TU71【文献标识码】A【文章编号】1002-8498(2012)18-0058-04 Analysis on Wireless Monitoring Data in Shenzhen Kingkey 100 Wang Hong, Liu Shu,Lu Jianxin,Liu Xiaobin,Xu Hang,Liao Biao (China Construction Steel Structure Co.Ld.,Shenzhen,Guangdong518040,China) Ahstract:The height of Shenzhen Kingkey 100 project is 441. 8m, which is cormposed of giant steel slant supports frame of reinforced concrete core wall (containing the steel column) and huge concrete filled steel tubular columns, overhanging trusses, waist trusses and steel truss concrete floors. The structure considerably affected by the environment. In order to feedback timely and ensure the security of the plex works in the construction process, the stress of key ponents has been monitored. And it has been pared with the simulation analysis results, which provided the basis for the related engineering decisions. Key words: tall buildings; core tube; concrete filled steel tubular column; stresses; temperature; monitoring; simulation
由于结构的应力数据能直接反映出结构当前1工程概况 的应力储备,使得人们能够正确了解结构的安全与深圳京基100规模大,建筑高度达到441.8m, 否,设计与施工是否合理,因而,应力数据已成为当施工周期长,施工过程受环境,尤其受日照影响较 前施工监测的重点内容。
施工技术 2016年9月上 114 CONSTRUCTION TECHNOLOGY 第45卷第17期 D0I:10.7672/8gjs2016170114 深厚淤泥条件下超长围堰施工技术 邢振华,沈王铁,周斌科 (中建三局集团有限公司东北分公司,辽宁沈阳110000) [摘要]目前,水下隧道施工的工程越来越多,对于水位较浅的水下隧道,一般采取围堰明挖法施工.以武汉东湖 通道的双层钢板桩围堰工程为依托,采用双层钢板桩土芯组合围堰提高了围堰的整体稳定性和安全性,达到了良 好的防水效果并节省了钢材用量. [关键词]隧道工程;水下隧道;钢板桩;围堰;施工技术 [中图分类号]U455.4 [文献标识码]A [文章编号]1002-8498(2016)17-0114-04 Construction Technology of Super-long Cofferdam Under Deep and Thick Silt Xing Zhenhua Shen Wangtie Zhou Binke Northeast Branch of China Construction Third Engineering Group Co.Ltd.Shenyang Liaoning 110000 China) Abstract:At present the underwater tunnel construction engineering bees more and more the underwater tunnel with shallow water level generally takes cofferdam open excavation method construction.Based on the double steel sheet pile cofferdam of Wuhan East Lake Channel project the double steel sheet pile-soil core cofferdam improves the overall stability and security of the cofferdam good waterproof effect and saves steel consumption. Key words:tunnels;underwater tunnels;steel sheet piles;cofferdam;construction 1工程概况 下伏第三系、三叠系、二叠系、石炭系、泥盆系及志 武汉东湖通道是中国最长的湖底隧道,全长 留系基岩.据收集资料、地质调查、野外钻孔岩性 10.6km 宽60~70m 其中穿东湖隧道长5km 采用 描述及室内土工试验成果,可将拟建工程场地勘探 围堰明挖法,即先在东湖中修筑围堰,再抽干围堰 深度范围内地层划分为12个大层、28个亚层,部分 内的湖水,然后往下挖掘10~14m 接着浇筑隧道,地层岩性特征如表1所示. 浇筑好后回填黏土,并拆除围堰,回水还湖. 3钢板桩围堰设计 根据设计要求,结合现场实际情况,为保证施 本工程钢板桩围堰均为双边围堰,钢板桩距隧 工期间东湖汤菱湖和郭郑湖水域连通,在桩号K3 道结构外边线的距离为20~50m 钢板柱围堰净宽 060一K3090处留设30m宽水系联络通道.围堰 7m 外轮廓线之间的距离为8m 堰体采用黏性土填 清淤施工分2阶段实施:①第1阶段分段围堰同 筑,如图1所示. 步施工的方式组织施工,设置30m宽...
施工技术 2014年7月上 38 CONSTRUCTION TECHNOLOGY 第43卷第13期 D01:10.7672/sgis2014130038 涡压式旋转分层扩径桩成桩方法 李春宝,薛世峰1,俞然刚1,孙翔2,张艳美1,刘晓辉1,赵致俊3 (1.中国石油大学(华东)储运与建筑工程学院,山东青岛266580; 2.中国石油大学(华东)规划建设处,山东青岛266580;3.莱西市建筑总公司,山东青岛266600) [摘要]总结了现有各种变截面扩径桩施工方法的优缺点.提出且验证了涡压挤扩机理,并将其应用到变截面扩 径桩施工工艺中,介绍了涡压挤扩设备及施工工艺流程.结果表明,采用涡压挤扩方法实施变截面桩的施工工艺 在理论上可行,具有较强的适用性,涡压挤扩方法将为柱基础行业注人新的活力. [关键词]桩;挤扩桩;涡压;旋转分层;施工技术 [中图分类号]TU753.3 [文献标识码]A[文章编号]1002-8498(2014)13-0038-04 The Construction Method of Vortex-pressure Rotating Stratified Expanded Diameter Piles Li Chunbao' Xue Shifeng' Yu Ran'gang' Sun Xiang2 Zhang Yanmei' Liu Xiaohui' Zhao Zhijun' (1.College of Pipeline and Civil Engineering China University of Petroleum Qingdao Shandong 266580 China; 2.Planning and Construction Department China University of Petroleum Qingdao Shandong 266580 China; 3.General Construction Company of Laixi Qingdao Shandong 266600 China) Abstract:This paper summarized the advantages and disadvantages of various existing tapered expanding pile construction method proposed vortex pression expansion mechanism and applied it to tapered expanded diameter piles construction.The vortex pression expanding equipment and the construction process were introduced.The results indicate that it's feasible to use the method of vortex pression expansion to implementation of tapered pile construction technology it is applicability and will bring new vitality for the pile foundation. Key words:piles;expand piles;vortex pressure;rotating stratified;constr...
施工技术 2013年10月上 122 CONSTRUCTION TECHNOLOGY 第42卷第19期 D0I:10.7672/sgjs2013190122 浅覆土大直径顶管顶进过程对周围土体影响研究 孙鹤明,靳志强 (中交一公局第三工程有限公司,北京101102) [摘要]结合实际工程,对顶管顶进过程中的地表沉降、深层位移进行了现场监测,并结合理论计算结果进行了分 析对比.介绍了地表沉降变形的原理以及地表沉降的监测方案.从据进机正面顶推力、侧面摩阻力、开挖时土体 损失儿个方面分别对土体深层水平位移进行了计算分析.结果表明,计算结果和实测数据较为接近,文中列出的 公式可以很好地预测土体深层水平位移. [关键词]地下工程;顶管;浅覆土;沉降;位移;监测 [中图分类号]TU992 [文献标识码]A [文章编号]1002-8498(2013)19-0122-04 Research on the Influence of Large-diameter Pipe Jacking Construction on Surrounding Soil Sun Heming Jin Zhiqiang The Third Engineering Co.Lad.of the First Highway Engineering Bureau of CCCC Beijing 101102 China) Abstract:Based on engineering practice the ground settlement and displacement in deep soil in pipe jacking construction were monitored and its calculation result was analyzed.The principle of ground settlement and its monitoring plan were introduced.The displacement in deep soil was analyzed and calculated from jacking force side friction and ground loss.The result shows that the calculated and monitoring data are close the formula in this paper can forecast the displacement in deep soil well. Key words:underground;pipe jacking;shallow covering;settlement;displacement;monitoring 1工程概况 表1土层物理力学参数 太原市汾东商务区人民路雨水管道采用顶管 Table 1 Physical and mechanical parameters of soils 施工工艺,管道直径3m 壁厚30cm 管道为双孔平 土层名称 黏聚力/内摩擦角/渗透系数/ 承藏力/ kPa 行顶管,顶进过程中先施工一条管道,顶进完毕后 () (m*d-) kPa 再施工另一条管道,管顶覆土只有3~5m 地质情况 粉土 15 18 0.35 120 粉质黏土 17 15 0.10 100 主要为粉土、粉质黏土、粉砂,地质条件复杂多变, 粉砂 0 28 15.00 160 如表1所示.施工中通过实际监测先顶进管道顶进 过程中对土体的影...
2014年1月下 施工技术 第43卷第2期 CONSTRUCTION TECHNOLOGY D0I:10.7672/8gjs2014020001 沈阳文化艺术中心钢结构屋盖施工技术 吴文平,孙夏峰,丁剑强,傅新芝,蔡蕾,杨国松 (江苏泸宁钢机股份有限公司,江苏宜兴214231) [摘要]介绍了沈阳文化艺术中心钢结构屋盖的结构特点、钢结构安装施工方案、临时支撑的卸载方案,特别是对 临时支撑的设置、超长超重杆件及大型铸钢件的安装等关键技术作了详细阐述.其地面预先定位再高空安装的技 术解决了大型铸钢件高空定位的技术难题,获得了良好的经济效益.同时采用有限元软件对结构的施工和卸载全 过程进行模拟分析.结果表明:钢结构的施工和临时支撑卸载方案是合理可行的,卸载后监测点的实测变形基本 处于理论变形范围内. [关键词]钢结构;铸钢件;临时支撑;卸载;数值模拟 [中图分类号]TU758.1 [文献标识码]A [文章编号]1002-8498(2014)02-0001-03 Construction for Steel Roofs in Shenyang Culture and Arts Center Wu Wenping Sun Xiafeng Ding Jianqiang Fu Xinzhi Cai Lei Yang Guosong Jiangsu Huning Steel Mechanism Co.Lid.Yixing Jiangsu 214231 China) Abstract:The authors present the characteristics of steel structural roof steel structure erection scheme and temporary support unloading scheme of Shenyang Culture and Arts Center.Especially the key technology of the disposal for temporary support and the erection of super heavy and long ponents and heavy steel casting are expounded.The technology of heavy steel casting high setting is solved by the method of first ground setting then second high setting.This technology shows better economical benefits than other insulation.Also the erection and unloading process are simulated and analyzed by using the finite element software.The results show that the steel structure erection and temporary support unloading scheme are feasibility the actual displacement of monitoring points is in the academic displacement range on the whole. Key words:steel structur...
施工技术 2017年8月下 18 CONSTRUCTION TECHNOLOGY 第46卷第16期 D0I:10.7672/8js2017160018 沈阳宝能环球金融中心集成平台施工工况下 建筑结构施工技术* 潘春龙,陈思明,王高飞,张冬冬,魏小海 (中建三局集团有限公司,辽宁沈阳110000) [摘要]超高层建筑的一般结构形式是核心筒框架结构,其中核心筒剪力墙由劲性钢结构和钢筋混凝土组成,外框 结构一般由外框柱、水平钢梁和组合楼板组成.基于集成平台的运用,结合超高层施工特点,采用不等高同步爬升 工艺,实现楼层之间的工序流水作业,使得每个结构层的净工期大幅下降,从而节约总体建造工期和成本. [关键词]高层建筑:集成平台;流水作业;施工技术 [中图分类号]TU974 [文献标识码]A [文章编号]1002-8498(2017)16-0018-03 Construction Technology of Building Structure Under Construction Condition of Integration Platform for Shenyang Baoneng Global Financial Center Project PAN Chunlong CHEN Siming WANG Gaofei ZHANG Dongdong WEI Xiaohai China Construction Third Engineering Bureau Group Co.Lid.Shenyang Liaoning 110000 China) Abstract:The mon structure form of super tall building is core tube frame structure whose core tube shear wall consists of stiffened steel structure and reinforced concrete the outer frame structure consists of outside frame column horizontal steel beam and posite floor.The introduced method is based on the application of integration platform bined with the construction characteristics of super tall building the synchronous climbing technology with unequal height is used which achieves flow process among floors shortens construction period of structure floor saves the cost. Key words:tall buildings;integration platform;flow process;construction 集成平台是在第三代微凸支点匣套智能顶升代顶模的基础上,结合中建三局2余个采用顶模进 平台的基础上,集成了施工所需的大型机械(如大行超高层建筑结构施工经验进行优化集成,集成了 型动臂式塔式起重机、布料机、施工电梯等)和施工3台大型动臂式塔式起重机(M1280/ZSL1150/ 所需附属设施(堆场、库房、操作...