[关键词]车站;地下工程;开挖;监测 [中图分类号]TU753 [文献标识码】A [文章编号]1002-8498(2011)20-0077-06 Monitoring Technology of Large-span Deep Foundation Excavation in Open TunnelingUndergroundRailwayStations Close toExistingRailwayLine SunPeng (ChinaRailway19hBureau2ndCo.,Ld.,Liaoyang,Liaoning111000,China) Abstract:The large-span deep foundation excavation in open tunneling underground railway stations of line.Theettementfenclosure structuregroundandbuildings,horizontaldiacementroundwat level and strut axial forces are monitored and analyzed by geological analysis.The the information construction and the quality and safety are ensured. Key words:stations;underground;excavation;monitoring 1工程概况 伪皇宫车站是轻轨三期工程地下隧道段地下车 长春轻轨三期伪皇宫地下站及区间工程项目包 站之一,是长春城市轨道4号线与地铁3号线的换 括伪皇官地下站围护结构及主体结构、伪皇官至东乘站,站址位于长利路与东九条路交叉路口南侧,3 大桥区间围护结构及主体结构、车站及区间相关附. 号线与4号线在车站内平行,均呈南北走向。
【关键词】隧道工程;围岩;破坏;变形机理;治理措施 【中图分类号]U459.1【文献标识码】A[文章编号】1002-8498(2011)15-0082-04 TheFailureAnalysisandTreatmentMeasuresof Surrounding Rock in Liangshui Tunnel Huang Qingwen',Liu Chao²,Wang Yimou (1.No.4 Construction Company of CCCC Second Highway Engineering Co.,Ltd.,Luoyang,He'nan 471013,China; 2.Faculty of Engineering,China University of Geosciences,Wuhan,Hubei 430074,China) Abstract;Liangshui Tunnel is a two-line tunnel in soft rock under high ground stress environment. How to ensure the stability of surrounding rock to carry on a safety construction is the key problem which need to be handled. During construction some phenomena such as rock setlement, too large convergence, twisted steel arch by deformation of initial support and so on happened. On the basis of the site investigation and stress analysis, bining with soft rock deformation mechanism and the analysis of monitoring data, some measures are put forward such as setting temporary invert, following up second lining timely, and bination method of milling digging machine and drilling and blasting method. The engineering practice has proved that those measures applied scientifically have a good effect on controlling settlement of surrounding rock and convergence. Key words:tunnel engineering; surrounding rock; damage; mechanism of deformation ;controlling measures
施工问题就是其中之一。
施工技术 2010年11月 54 CONSTRUCTION TECHNOLOGY 第39卷第11期 上海雪野路隧道工井不规则基坑围护设计与施工 卢辰 (上海市政工程设计研究总院,上海200092) [摘要]上海雪野路电力隧道A号电缆工井为圆形结构,兼作顶管井,其连接通风道基坑为矩形,基坑整体平面形 状不规则,开挖深度不一致且周边建筑物密集,基坑施工过程较复杂.针对上述难点,采用MW工法基坑围护方 法,并合理确定了基坑施工顺序.介绍了该基坑围护结构的设计方法及关键施工工艺.基坑变形监测结果证明该 施工过程安全可控. [关键词]电力隧道;工井;基坑围护;SMW工法 [中图分类号]TU753.3 [文献标识码]A [文章编号]1002-8498(2010)11-0054-03 Design and Construction of Irregular Foundation Excavation for Xueye Road Tunnel Working Well in Shanghai Lu Chen (Shanghai Municipal Engineering Design General Institute Shanghai 200092 China) Abstract:The No.A cable working well of Xueye Road electrical tunnel in Shanghai is a circular structure.The working well is also designed as pipe-jacking well.The foundation excavation of ventilation tunnel is designed as a rectangular structure.So the difficulties for design and construction of the foundation support can be summed up as:irregular plan inconsistent excavation depth dense surrounding buildings and plex construction process.Based on the difficulties SMW construction method is adopted for supporting the foundation excavation.Moreover reasonable construction process is decided.The author introduces design method and key construction technology of the support structure for foundation exeavation.Monitoring results show that the construction process is controlled in allowable range. Key words:electrical tunnel;working well;foundation excavation support;SMW construction method 1工程概况 时黏聚力c=16.0kPa 内摩擦角=14.9°;③灰色淤 上海雪野路电力电缆隧道工程全线采用钢筋混凝 泥质粉质黏...
2010年1月 施工技术 第39卷第1期 CONSTRUCTION TECHNOLOGY 71 上海银行数据处理中心超大深基坑土方开挖技术 李华,杜长勤,陈克明 (上海市浦东新区建设(集团)有限公司,上海200129) [摘要]上海银行数据处理中心工程基坑呈矩形,总占地面积约42000m2 采用盆式、抽条分块开挖技术.施工中 首先对称瓷筑双圆环形混凝土支撑,充分利用时空效应原理,坑边留土护壁,对称、均衡、分层挖土;采用设置环形 出土通道和南北两个出土坡道相结合的交通措施.并采用信息化施工,在基坑施工期间监测地下水位、围护结构 水平位移及支撑轴力.有效控制基坑变形,降低施工成本. [关键词]基坑;土方开挖;盆式开挖;时空效应;信息化施工 [中图分类号]TU753.1 [文献标识码]A[文章编号]1002-8498(2010)01-0071-03 Earth Excavation Technology of Super-large Foundation Excavation of Data Processing Center for Bank of Shanghai Li Hua Du Changqin Chen Keming (Shanghai Pudong New Area Construetion Group)Co.Lad.Shanghai 200129 China) Abstract:Foundation excavation of Data Processing Center for Bank of Shanghai is rectangular with total area of 42 000m2.The foundation excavation is excavated in basin-type with multi-strips and multi- subareas.First engineers symmetrically pour double circle concrete supports then excavate soil symmetrically in multi-layers according to principle of time-space effect and leave soil around the foundation excavation to protect walls.Second they set circle path and two ramps to transport soil. Finally they adopt information construction to monitor underground water level horizontal displacement of support structure and support axial force.Then foundation excavation deformation is controlled effectively and the construction investment is reduced. Key words:foundation excavation;soil excavation;basin-type excavation;time-space effect;information construction 上海银行数据处理中心位于浦东新区经二路、纬采用一级卸土放坡结合钻孔灌注围护...
2010年5月 施工技术 第39卷第5期 CONSTRUCTION TECHNOLOGY 29 上海联谊大厦二期双向同步逆作法跃层施工技术 姜向红 (上海市第二建筑有限公司,上海200080) [摘要]上海联谊大厦二期周边建筑密集,对工程施工质量要求较高.鉴于工程实际情况,采用双向同步逆作法跃 层施工,即施工时首次直接挖土至地下2层,与设计施工工况有所不同,对工程安全和质量产生重大影响.通过圈 护结构内力与变形验算证明,跃层施工导致除跃层外其他各层支撑轴力、楼层位移均有不同幅度增长,并指出跃层 施工的主要控制要求. [关键词]逆作法;跃层施工;双向间步;支撑轴力;层间变形 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2010)05-0029-03 Spring Layer Construction Technology of Bidirectional Synchronous Reversed Method in Shanghai Lianyi Building Phase IⅡ Jiang Xianghong (Shanghai No.2 Construction Co.Ltd.Shanghai 200080 China) Abstract:Shanghai Lianyi Building Phase IⅡhas strict requirements on construction quality because there are dense buildings around.According to actual conditions bidirectional synchronous reversed method and spring layer construction technology are adopted.It means that engineers directly excavate soil to the second underground floor instead of excavating by floors in design scheme.The adjusting of construction scheme will greatly affect safety and quality of the projeet.Calculating results of retaining structures stress and deformation prove that the support axial force and floor displacement increase in different degrees except spring layer.Moreover main control requirements on construction of spring layer are pointed out. Key words:reversed construction method;spring layer construction;bidirectional synchronous;support axial force:floor displacement 逆作法是广泛应用于高层建筑深基础施工中的一1工程概况 种新兴的施工工艺,它具有缩短工期、降低造价、减小 上海联谊大厦二期工程位于上海市黄浦区,西临 基坑变形、减小地下结构施工对周边环境的影响等优四...
[关键词]安装;预应力张弦梁;张拉;临时支撑;施工技术 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2015)16-0076-03 Construction Technology of Beam StringRoof of Shanghai TechnicalUniversity Gymnasium WangJian (Shanghai Municipal Construction Co.,Lad.,Shanghai 200438,China) Abstract :Shanghai Technical University Gymnasium uses beam string roof with 90.8m length and 51. 2m span, which posite of ten string beams, two support trusses, two steel box beams,main truss and side truss and these ponents are connected by cross secondary beam.The structure is plex and the construction is difficult.This paper mainly introduces some technical measures of hoisting,temporary supports, simulation and tensioning during construction of beam string roof in Shanghai Technical University Gymnasium. Key words:installtion; prestressed beam string; tensioning; temporary support; construction 预应力张弦梁结构自1984年由日本NIHON大 托桁架 托桁架 学的Masao saitoh教授提出,由刚性拱架、柔性拉索 箱梁 及撑杆形成主要的受力体系,因其结构受力简单、 箱梁 受力形式明确、整体刚度相对较大、较易形成大跨 度的美观建筑造型等特点,在需要形成大跨度空间 主桁架 的场馆建筑中得到广泛应用。
施工技术 2016年7月下 68 CONSTRUCTION TECHNOLOGY 第45卷第14期 D0I:10.7672/8js2016140068 上海深坑酒店施工模拟分析与验算 汤文锋,王健吉1,黄乐平2 (1.浙江杭萧钢构股份有限公司,浙江杭州310003;2.浙江建设职业技术学院,浙江杭州311231) [摘要]本工程结构为单跨支撑结构体系,且框架沿高度方向及水平方向都呈曲线变化,在一定程度上有空间结构 的形态,施工阶段的变形将对结构的受力产生一定影响.针对以上特点,本文详细介绍了深坑酒店施工模拟全过 程分析,包括钢结构吊装方案、施工模拟受力分析、P-A效应分析等.通过MIDAS软件对结构进行施工模拟分析, 并对比ETABS软件计算结果,计算出施工模拟较一次性加载的影响程度,通过对计算结果进行分析,提出了减少 施工阶段带来不利影响的相关措施. [关键词]高层建筑:曲线变化;施工模拟;一次性加载 [中图分类号]TU973.13 [文献标识码]A [文章编号]1002-8498(2016)14-0068-05 Construction Simulation Analysis and Checking Calculation for Shanghai Chasm Hotel Tang Wenfeng' Wang Jianji' Huang Leping (1.Zhejiang Hangxiao Group Steel Structure Co.Lad.Hangzhou Zhejiang 310003 China; 2.Zhejiang College of Construction Hangzhou Zhejiang 311231 China) Abstract:The structure of this engineering is a single span support structure system.The frame along the height direction and the horizontal direction all assumes the curve change.To a certain extent there is a morphology of spatial structure.Deformation during construction will have a certain impact on the structure of the force.In view of the above characteristics this paper introduces the whole process simulation of construction of Shanghai Chasm Hotel including the lifting scheme of the steel structures construction simulation the analysis of effect of P-△.Through the construction simulation analysis of structure by software of MIDAS and paring the results of calculation by software of ETABS the influence degree of the construction simulation i...
施工技术 2011年5月上 86 CONSTRUCTION TECHNOLOGY 第40卷第340期 上海洛克外滩源历史建筑加固与邻近深基坑施工 魏春明 (江苏省华建建设股份有限公司上海分公司,上海200438) [摇要]上海洛克外滩源的缘含改遵包括历史文化风税区的保护,保留建筑的修语好建和新建.在历史建筑含围 的小空内进行深基悦施工,考虑了施工流程,地布置、基悦围护的安全、历史建筑的加固等采取了一系列接 港施,同时应用信化施工对整个过程进行监测,保证了施工容全. [关键词]上海外滩源:综含:历史建筑:加团:深基抗:监测 [中图分类号]TU746.3:TU753.6 [文献标识码]A [立章编号]1002-8498(2011)09-0086-03 Strengthening of the History Building and Construction of the Adjacent Deep Foundation Excavation in the Rockbund of Shanghai Wei Chunming (Shanghai Company Jiangsu Huajian Construction Stock Co.Ltd.Shanghai 200438 China) Abstract:Comprehensive rebuilding projeet in the Rockbund of Shanghai ineludes protection of historic conservation area repairing of the existing building and extension and the new construction.During construction of deep construction excavation in narrow space surrounded by history building considering construction process site arrangement foundation safety and strengthening for history buildings a series of technique measures are taken.At the same time information construction is adopted to monitor construction process to assure construction safety. Key words:Rockbund of Shanghai;prehensive rebuilding:history building:strengthening:deep foundation exeavation:monitoring 1工程概况 虎丘路 洛克外滩源位于上海市外滩历史文化风航保护 北 中实大楼 的核心地块,一期工程由10栋4~9层的历史保 护、保留建筑和3核新建组成.3栋新建筑分别 京东路 妥 2号基坑 实加 亚文加顶 为中实加建、亚洲文余加建和3号基悦的能源中心, 3号基坑 女青年会 新建开挖的基悦紧贴保护、保留建筑.平面布里 美丰 洋行 安培洋行 圆明园 大楼 如图1所示. 公寓 3导基坑与亚洲交会加建基坑之间只隔一道地 圆明园路 下连续墙.3号基悦开挖面积630m2 开控深度 图1洛克外源平面示意 13.1m 亚洲文会加建基悦开挖面积90...
[关键词】改造工程;桩基础;设备改造;突涌;施工技术 [中图分类号]TU746.3【文献标识码】A [文章编号】1002-8498(2012)01-0042-06 ResearchandApplicationofFillingPileTechnologyforSomeUnpleted Residential Flats inShanghai Lu Huiquan',Li Zhong',Zhang Yunda²,Jin Qingshan”,Sui Hailong² (1.Shanghai Institute of Geological Engineering Exploration,Shanghai 200072, China; 2.Shanghai Geological Construction Co.,Lad.,Shanghai 200072,China; 3.Shanghai Geotechnical Engineering & Geology Institute Co.,Lud.,Shanghai200072,China) Abstract:Based on some engineering in Shanghai,authors introduce construction technologies of filling piles construction including surveying positioning,equipment emplacement,basement and foundation slab guide hole farfetched,equipment and machinery transformation,piling connector and position of the old and new floor, confined water inrushing prevention. According to the application of these technologies, the existing structures are protected well and made full use,and good effects are obtained. Key words;reconstruction; piles;equipment transformation;inrushing; construction 1设计要求和项目特点 桩。
2010年1月 施工技术 第39卷第1期 CONSTRUCTION TECHNOLOGY 105 上海某围海造地工程施工安全监控 丁育南 (上海上咨建设工程咨询有限公司,上海201906) [摘要]上海横沙围海造地四期工程建设跨汛期、冬季施工,主要为水上作业,施工难度大.结合工程实际情况,建 立完善的安全生产监理保障体系,熟悉设计文件与施工环境,识别与划分危险源,审核安全措施、专项方案与应急 预案,编制监理规划和安全监理实施细则,审核施工方设备及安全交底等,确保了围海造地工程建设生产的安全有 序推进. 【关键词]围海造地工程;施工安全;监理;保障体系 [中图分类号]TU714 [文献标识码]A [文章编号]1002-8498(2010)01-0105-03 Safety Construction Control of Some Sea Reclamation Project in Shanghai Ding Yu'nan (Shanghai Sice Construction Engineering Consulting Co.Ltd.Shanghai 201906 China) Abstract:V Phase sea reclamation project of Hengsha in Shanghai is difficult to construct because its construction has past through flood season and winter and main works are finished over water.Based on the engineering conditions the author does supervision works from following aspects such as building perfect ensuring system of safety construction supervision being familiar with design documents and construction environment identifying and dividing risk sources auditing safety measures special scheme and emergency plan establishing supervision plan and implementing regulations auditing equipments of construction firms.The supervision ensures sea reclamation project proceeds safely and in order. Key words:sea reclamation project;construction safety;supervision;ensuring system 1工程概况 上海横沙围海造地四期工程(见图1)位于长江三 角洲东前缘,长江北港与北漕之间,且紧靠长江口深水 航道.工程全长19.922km(新建北侧堤长5040m 隔 堤长4832m 北导堤加高长3000m 加高二期东侧堤纳 第车有二区 潮口段长3530m 二期北侧堤纳潮口段护底保护长 信系 3520m) 最远处的隔堤距陆地20km以上. 该工程系滩涂围海造地(促淤)工程,工期为 2007-12-28-2009-06-30 ...
施工技术 2010年6月 96 CONSTRUCTION TECHNOLOGY 第39卷第6期 上海市中小学校舍抗震鉴定及加固策略 宋杰 (上海市建筑科学研究院(集团)有展公司上海市工程结构新技术重点实验室,上海200032) 【摘要]汶川地展之后国家提高了中小学校舍的抗晨设防类别,要求针对各级各类中小学校舍实施全面排查鉴定 和抗展加固以使地震设防区的中小学校舍达到重点设防类标准.在总结了上海市中小学校舍使用现状的基础上, 按照相关规定对校舍鉴定结果进行归纳分析,提出了中小学校舍工程加固设计的依据及方法,并对典型案例进行 分析. [关键词]中小学;检测;鉴定;加固 [中图分类号]TU375 【文献标识码]A[文章编号]1002-8498(2010)06-0096-03 Seismic Appraisal and Strengthening Method of Primary and Middle School in Shanghai Song Jie (Shanghai Research Institute of Building Sciences Shanghai Key Laboratory of New Technology Research on Engineering Structure Shanghai 200032 China) Abstract:The seismic fortification category of primary and middle school buildings is increased after Wenchuan earthquake.The school buildings in each part of our country must satisfy the focal fortification objects through the methods of general seismic survey structure detection in field seismic appraisal and strengthening.The present status and appraisal results of Shanghai primary and middle school buildings are summarized and at the same time the methods of structure strengthening are put forward through analyzing the typical projects.The practice shows that the strengthening methods in school buildings are useful. Key words:primary and middle school;detection;appraisal;strengthening “5.12”汶川地震造成整个震灾区倒塌房屋1500展设防烈度预估的罕遇地震影响时,不致倒或发生 万间,校舍坍塌多达6898余栋,对当地教师和学生的危及生命的严重破坏.根据建筑的实际需要和可能, 生命安全带来了严重危害.校舍房屋的倒塌不仅与汶《建筑抗震鉴定标准》GB50023-2009按照建造年代和 川地震强度、工程施工质量、设计指导思想有关,而且后续使用年限将现有建筑分为A、B、C三类并按照不 还与国家的社会经济水平息息相关. 同的抗震鉴...
2014年2月下 施工技术 第43卷第4期 CONSTRUCTION TECHNOLOGY 35 D0I:10.7672/sgj:2014040035 上海外滩某历史建筑结构安全及抗震性能评估 商登峰 (上海同瑞土木工程技术有限公司,上海200092) [摘要]通过对上海外滩某历史建筑结构安全及抗震性能进行评估,现场检测确定了建筑结构状况、材料强度、荷 载、变形情况、完损状况和动力特性等参数,用于建立计算模型.评估时考虑填充墙、楼板翼缘截面及钢筋的贡献, 并调整梁端弯矩以充分利用跨中底筋,客观反映结构的真实性能.结果表明,大楼整体基本满足静力作用下的安 全性要求.在小震作用下,填充墙会出现一定的开裂,但结构不出现较大破坏;中震作用下,结构破坏程度有所增 大,但不会出现倒塌. [关键词]历史建筑;抗震;检测;安全 [中图分类号]TU717 [文献标识码]A [文章编号]1002-8498(2014)04-0035-05 Safety and Seismic Appraisal on a Historical Building at the Bund of Shanghai Shang Dengfeng Shanghai Tongrui Ciril Engineering Technology Co.Ltd.Shanghai 200092 China) Abstract:An appraisal of structural safety and seismic performance for a heritage building at the Bund of Shanghai was conducted.According to the inspection structural conditions the material strength and loads existing deformations and damages and dynamic characteristics were determined and then they were used in the modeling of the structure.During the analysis the favorable effects of infill masonry walls and reinforced slab flanges were taken into account.The strength of the mid-span reinforcements were fully used through reducing the moments at the beam ends.The actual characteristics of the structure were then calculated.The analysis results show that the structure is safe under static loads no severe damage would occur under minor earthquakes and no collapse would occur during moderate earthquakes. Key words:historical building;seismic;detection;safety 0引言 进行评估,已成为在后续使用及修缮工作中更好地 作为上海市标志性地区,外滩保留了大...
施工技术 2011年4月下 26 CONSTRUCTION TECHNOLOGY 第40卷第339期 上海国际客运中心巨型框架施工力学分析 康伟,郑七振,鲍永亮,王东,唐玉 (上海理工大学环境与建筑学院,上海200093) [摘要]上海国际客运中心Winter Garden工程的结构形式复杂,施工难度大.其中巨型框架柱的施工质量和准确 定位是本工程起控制作用的环节,并且也是后续屋面桁架整体吊装和吊舱安装的基础.在施工前需要根据结构特 点并结合现场条件,制定相应的施工方案.同时利用计算机仿真技术,对施工过程中的关键环节进行定量分析,找 出最不利因素,从而科学有效地指导与控制施工过程.分析结果表明,上海国际客运中心巨型框架施工方案合理 可行. [关键词]上海国际客运中心;巨型框架柱;施工方案;仿真;定量分析;施工控制 [中图分类号]TU323.5 [文献标识码]A [文章编号]1002-8498(2011)08-0026-04 Construction Mechanics Analysis of Mega-frame in Shanghai International Transportation Center Kang Wei Zheng Qizhen Bao Yongliang Wang Dong Tang Yu School of Encironment and Architecture Unisersity of Shanghai for Science and Technology Shanghai 200093 China) Abstract:Construction of Winter Garden building whose structure is plicated in Shanghai International Transportation Center is hardly difficult.Construction quality and accurate positioning of mega-frame column are not only controlling steps in this project but also the basic of further integral lifting of roof truss and installation of pod.Before construction corresponding construction scheme should be formulated according to the structural features and field condition.At the same time quantitative analysis for the key step of construction process should be done to confirm the least favorable condition by puter simulation technology.Consequently construction process can be guided and controlled scientifically and effectively.It shows that all the construction schemes are reasonable and feasible. Key word...
2015年10月下 施工技术 第44卷第20期 CONSTRUCTION TECHNOLOGY 11 D0I:10.7672/sgj82015200011 上海中心大厦钢结构工程施工创新技术 贾宝荣,陈晓明 (上海市机械施工集团有限公司,上海200072) [摘要]上海中心大厦总高632m 建筑形态呈旋转收缩上升态势,设有双层幕墙系统;结构体系复杂,由多个体系 组合而成,具有高、扭、柔、空等特点.复杂的结构设计必然伴随着复杂的施工技术应用和实践,从深化设计、结构 安装、施工装置、施工工艺等多个方面重点提炼和总结了上海中心大厦钢结构工程实施中成功应用的施工创新技 术,主要包括:钢结构幕墙一体化深化技术、主楼钢结构施工模拟分析及控制技术、外幕墙钢支撑结构施工技术、巨 型动臂式塔式起重机外挂支撑施工技术、外幕墙钢支撑结构滑移支座国产化研发技术、电涡流阻尼器国产化研发 及施工装配技术、超高空塔式起重机置换及拆除施工技术. [关键词]高层建筑;钢结构;幕墙;塔式起重机;电涡流阻尼器;施工技术 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2015)20-0011-07 Innovation Technologies for Construction of Shanghai Tower Steel Structure Jia Baorong Chen Xiaoming (Shanghai Mechanized Construction Group Co.Ltd.Shanghai 200072 China) Abstract:Shanghai Tower has the 632 meters height and building form is the trend of the rising trend of the rotation.Double curtain wall system has been applied for the structure and its structural style is plex with multiple systems which has the features of high twisting flexible and floating.Complex design must be acpanied by practices and application of plex construction techniques.This paper summarizes the successful innovation technologies for construction from the aspects of detailed design structure installation construction equipment and construction technology etc.The construction innovation technologies include integration detailed design of steel structure and curtain wall construction simulation analysis and control technology of main structure construction technology of supporting structure o...
[关键词]高层建筑;深基坑;后浇带;逆作法;施工技术 [中图分类号]TU974[文献标识码】A[文章编号】1002-8498(2016)03-0119-04 Top-down andDown-top ConstructionTechniqueforPost-pouring Band ofDeepFoundation Excavation at Shanghai Tower Tang Qiangda,Wu Tao (Shanghai Jianke Engineering Consulting Co.,Lad.,Shanghai 200032,China) Abstract:Shanghai Tower as the tallest building under construction in China, the general construction scheme for its deep and large foundation of main block and podium is the bination of top-down and down-top method. The post-pouring band is set between basements of main block and podium, whose location is determined according to the locations of top-down enclosure walls of main block and ring supporting structure. In view of the construction conditions of post-pouring band in Shanghai Tower, handling methods of key joints of post-pouring band are given in this paper,the enclosure conditions of post-pouring band are analyzed bining withmonitoring setlement data,technical treatment measures for underground waterproof joints of post-pouring band and enclosure construction technique of post- pouring band are mainly discussed. Key words; tall buildings; deep foundation excavation; post pouring belt;reverse construction method; construction 0引言 心。
[关键词]高层建筑;超高层组合结构;模拟;监测;徐变;季节温差 [中图分类号]TU973.14 [文献标识码】A [文章编号】1002-8498(2013)15-0009-04 NumericalAnalysisandMonitoringResearchfor Construction Progress ofShanghai Tower Zhang Qilin', Lu Jia', Li Han', Zhao Xin², Chen Lu (1.College of CivilEngineering,TongjiUniesity,Shanghai200092,China; 2.Architectural Design & Research Institute of Tongji University (Group)Co.,Lad.,Shanghai 200092,China; 3.Construction Quality Inspection Institute of Tongji University, Shanghai 200092,China) AbstractThe construction cycle of super high-rise building is long.Time-dependent structure,material, load wil impact the behavior of the structure during the construction. For the purpose of studying the behavior of high-rise building in construction phase, a monitoring and analysis project of Shanghai Tower was conducted. Considering the actual construction progress, a finite element model was established and a long term monitoring was conducted.Through the parison between the monitoring and the numerical analysis,the structural behavior of subsequent construction stage by modifying the calculation model can be predicted.The analyzing results indicate that the frequency of identification is lower than FEM result. The time-dependent material has a great impact on the vertical deformation and member forces. The vertical displacements of numerical results which consider the effect of the season temperature difference are in good agreement with the monitoring results. temperature difference 随着建筑业的迅猛发展,越来越多的超高层建收缩、徐变、加载龄期等的影响,导致外框架与核心 筑拔地而起,钢与混凝土组合结构体系由...
施工技术 2016年4月下 30 CONSTRUCTION TECHNOLOGY 第45卷第8期 D0I:10.7672/8js2016080030 上海中心大厦施工模拟分析* 王晓蓓,高振锋2,伍小平2 (1.同济大学土木工程学院,上海200092;2.上海建工集团股份有限公司,上海200080) [摘要]在施工过程中由于材料时变等因素引起的竖向构件的累积变形效应,是超高层结构设计和施工中需要考 虑的关键间题,以上海中心大厦为例,考虑混凝土收缩徐变效应等影响因素,根据实际施工进度建立施工过程有限 元模型,上海中心大厦采用钢骨混凝土组合柱,分别采用几种简化方法建立铜混组合柱模型进行施工过程模拟,得 到核心筒和巨型柱在各施工阶段的竖向累积变形,对各简化方法的计算结果进行比较,在上海中心大厦施工过程 中,对竖向构件变形及关键部位应力进行了长期监测,计算结果与实测数据较为吻合,说明分析方法的可行性. [关键词]高层建筑:组合结构;施工;数值模拟:竖向变形 [中图分类号]TU375.4 [文献标识码]A [文章编号]1002-8498(2016)08-0030-04 Construction Simulation Analysis for Shanghai Tower Wang Xiaobei' Gao Zhenfeng2 Wu Xiaoping㎡ (1.College of Ciril Engineering Tongji University Shanghai 200092 China; 2.Shanghai Construction Group Co.Ltd.Shanghai 200080 China) Abstract:The cumulative deformation of vertical members during construction caused by the effects of time-dependent material property is a major consideration in the design and construction of super-high rise buildings.A FEA model of Shanghai Tower considering creep and shrinkage of concrete is established according to the actual construction process.The Shanghai Tower adopts the steel-concrete posite columns this paper uses several simplified methods to establish the column model and the vertical cumulative deformations of cores and columns in each construction stage are acquired and pared.The long-term monitoring of vertical deformation and stress of critical members has been conducted the calculated results are in good agreement with the monitoring results which prove...
2012年9月下 施工技术 第41卷第373期 CONSTRUCTION TECHNOLOGY 35 上海中心大厦主楼深大圆基坑施工 风险分析及应对措施 王学知 (上海建科工程咨询有限公司,上海200032) [摘要]首先对软土地区深基坑工程的常规性风险进行分析,然后结合上海中心大厦主楼深基坑工程具体情况,对 主楼深基坑及地下连续墙进行受力简化分析,进而提出分析基坑内外土体分布情况、控制围护结构施工质量、监测 坑内水位、控制基坑开挖方式、检查周边堆载情况及重视监测数据分析等风险应对措施,降低了深基坑工程的风 险,保证了基坑工程顺利实施. [关键词]高层建筑;地下工程;软土地区;基坑;地下连续墙;风险分析 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2012)18-0035-04 Risk Analysis and Control Measures for Large-deep Circular Foundation Excavation in Main Building of Shanghai Tower Wang Xuezhi Shanghai Jianke Engineering Consulting Co.Ltd.Shanghai 200032 China) Abstract:The conventional risk of deep foundation excavation in soft soil area is analyzed.Then on the base of actual conditions of the foundation excavation in Shanghai Tower Main Building the stress analysis is done for the deep foundation excavation.Furthermore the risk control measures are put forward to reduce the risk of deep foundation excavation and ensure the foundation safety such as analyzing on soil distribution of soils surrounding the foundation excavation methods controlling construction quality of the support structures monitoring the water level in the foundation excavation controlling the excavation methods checking the loads surrounding the foundation excavation and emphasizing on the analysis of monitoring data. Key words:tall buildings;underground;soft soil area;foundation excavation;diaphragm wall; risk analysis 随着城市化进程的不断推进,基坑的开挖面积质条件不同,即便同一区域地质条件也有差异,地 越来越大,开挖深度也越来越深,基坑周边建筑物、,质条件的复杂性、不均匀性,造成勘察数据具有很 道路桥梁、地...
2011年6月下 施工技术 第40卷第343期 CONSTRUCTION TECHNOLOGY 35 上海中心城区复杂地质条件下基坑围护设计与施工 王英锐,董红霞2,黄新林2 (1.上海大学土木工程系,上海200072;2.上海智富建设工程有限公司,上海200336) [摘要]对上海中心城区复杂地况的基坑围护设计与施工进行分析,研究在软土地区,尤其具有多个复杂边界条 件,不同邻近建筑、管线和地下构筑物,采取对应的避让和保护措施.运用有限元方法模拟开挖过程中无撑断面的 土体围护效果.结合实例分析喷及有限支撑措施,重力式挡土墙技术.结合坑内多种加固技术进行组合运用, 达到边界位移的稳定性控制.同时为了评价基坑围护的稳定性效果,分析了原位土体位移监测数据.结果表明采 用针对性设计,可提高设计的可行性及施工的灵活性. [关键词]软土地区;基坑围护;复杂地况;监测 [中图分类号]TU753.1 [文献标识码]A[文章编号]1002-8498(2011)12-0035-03 Design and Construction of Foundation Excavation Supporting with Complex Geological Condition in Shanghai Center Area Wang Yingrui' Dong Hongxia2 Huang Xinlin2 (1.Department of Civil Engineering Shanghai University Shanghai 200072 China: 2.Shanghai I F Development (Group)Co.Lid.Shanghai 200336 China). Abstract:The environment around center area of Shanghai bee more plex.By researching classical foundation excavation project the design and construction of foundation excavation supporting is analyzed.In soft soil area the excavated foundation always faced to several conditions nearby such as surrounding buildings piplines and underground structures.So it is important to take useful protect methods.FEA method is used to solve the condition of foundation excavation.And the effect of retaining structure is studied.In the project several technical methods are used to meet the stability control about boundary displacement.The construction control of foundation excavation engineering is a plicated system engineering so monitoring data are analyz...
施工技术 2015年10月上 20 CONSTRUCTION TECHNOLOGY 第44卷第19期 D0I:10.7672/8js2015190020 上海世茂深坑酒店施工升降机方案优化及实践 谢高华,李小飞,郭杰锋,李峁清,王勃龙 (中国建筑第八工程局有限公司,上海200122) [摘要]上海世茂深坑酒店建造于废弃采石深坑内,受限于深坑地形和场地条件,人员及材料通往坑内的运输是施 工面临的首要问题.通过对施工升降机配置与安装方案的研究及优化,最后采用附着于塔式起重机标准节上的施 工升降机方案,不仅成功解决了这一难题,而且大大提高了运输效率,节约了项目成本. [关键词]深坑;升降机;塔式起重机;优化 [中图分类号]TU61 [文献标识码]A [文章编号]1002-8498(2015)19-0020-04 Construction Elevator Scheme Optimization and Practice in Shanghai Shimao Chasm Hotel Xie Gaohua Li Xiaofei Guo Jiefeng Li Maoqing Wang Bolong China Construction Eighth Engineering Bureau Co.Lid.Shanghai 200122 China) Abstract:Shanghai Shimao Chasm Hotel was built in the waste-pit.Limited to the pit terrain and the site conditions the personnel and material transport to the pit is the most important issue to face.By studying and optimizing the construction of the lift configuration and installation programs finally the authors decided to let the lift attached to the crane standard section of construction hoist program not only successfully solved the problem but also greatly improved transport efficieney and reduced the cost. Key words:pits;elevator;tower cranes;optimization 1工程概况 2方案设计 深坑酒店位于上海市松江区废弃采石坑内,该 经对采石坑内地形勘查结合深坑酒店地质勘 采石坑近似椭圆形,上宽下窄,坡度较陡,坡角约为 察报告及对施工图纸仔细研究,采石坑内西侧 81°,其面积约为36800m2 最深处距地表77m.深 -50.000m平台处崖壁风化程度相对较轻,为中风 坑酒店利用采石坑依崖壁向下而建,分为坑内16层 化岩层,并且该平台离建筑物较近,为安装施工升 (坑内分为水下2层,水上14层),坑上2层3,如 降机的最合适位置.由于坡角约为81°,坑顶至 图1所示.施工过程中,为解决深坑内人员及材料 -50.000m平台坑角水平距离约达20m 常规施工 垂直运输问题,需在坑内安装施工升降机. 升降机附墙长度为2.9~4.1m21 无法达到20m长 度.经初步讨论,施工...