施工技术 2013年11月上 78 CONSTRUCTION TECHNOLOGY 第42卷第21期 D01:10.7672/sgjs2013210078 强夯振动数值模拟与现场实测* 吴益萍,张天林2,王继成3 (1.浙江三门中诚建设有限公司,浙江三门317100;2.台州建浩工程管理有限公司,浙江台州318000; 3.台州职业技术学院建筑工程学院,浙江台州318000) [摘要]为了防止强夯振动对房屋的破坏和减少强夯造成的地下管线位移,在地下管线旁设置了减振沟,对减振沟 的不同形式进行了数值模拟,并进行了现场测试.研究发现强夯的振动、挤土效应不容忽视,减振沟能显著减轻振 动和挤土效应,减振沟越深,越靠近要保护的建筑物,减振效果越好;如果减振沟设在地下管线旁远离夯点的一侧, 地下管线位移较大,如果减振沟设在靠近夯点一侧,地下管线位移较小. [关键词]强夯;振动;挤土效应;减振沟;数值模拟 [中图分类号]TU441.8 [文献标识码]A [文章编号]1002-8498(2013)21-0078-03 Numerical Simulation and Field Measurement on Vibration of Dynamic Compaction Wu Yiping' Zhang Tianlin2 Wang Jicheng' (1.Sanmen Construction Company Sanmen Zhejiang 317100 China;2.Taizhou Jianhao Supervision Company Taizhou Zhejiang 318000 China;3.Department of Architecture and Civil Engineering. Taizhou Vocational and Technical College Taizhou Zhejiang 318000 China) Abstract:Damping ditch was dug beside underground pipeline so as to prevent buildings from damage and reduce underground pipeline displacement.Different damping ditches were simulated and field measurement was done.It was found that damping ditch could reduce vibration and underground pipeline displacement greatly.The deeper and nearer to the building the damping ditch is the better the damping effect is.The underground pipeline displacement is small when the damping ditch is between underground pipeline and tamping points otherwise the displacement is great. Key words:dynamic paction;vibration;soil-pacting effect;damping ditch;numerical simulation 0引言 粉质黏土...
施工技术 2011年7月上 62 CONSTRUCTION TECHNOLOGY 第40卷第344期 强夯加固吹填地基振动传递机理及减振措施研究 张大伟,郭立英2,乔京生3,李娄山4 (1.唐山市建设工程质量监督站,河北唐山063000; 2.唐山市住房和城乡建设局,河北唐山063000:3.唐山学院,河北唐山063000: 4.河北联合大学,河北唐山063000) [摘要]根据曹妃甸工业区的强夯工程实例,研究了不同夯击能下强夯振动在沿海吹填地基中的衰减规律,提出了 水平方向和垂直方向加速度的衰减经验公式.研究分析了在不同深度、宽度及充填物条件下隔振沟对强夯振动传 递的影响和减振效果.结果表明,隔振沟深度对减振效果有较大影响,深度越深减振效果越好,但存在极限深度, 在吹填地基情况下隔振沟深度一般不超过3m或被保护地下结构物(包括桩基或其他深基础)深度的1/5. [关键词]强夯;夯击能;隔振沟;减振效果;弹性模量 [中图分类号]TU472.31 [文献标识码]A [文章编号]1002-8498(2011)13-0062-03 Study on Vibration Transfer Mechanism of Dredger Fill Foundation Strengthened by Dynamic Compaction and Vibration Reduction Measures Zhang Dawei' Guo Liying Qiao Jingsheng' Li Loushan' (1.Tangshan Construction Quality Supervision and Examination Station Tangshan Hebei 063000 China; 2.Department of Housing and Urban-rural Development of Tangshan Tangshan Hebei 063000.China: 3.Tangshan College Tangshan Hebei 063000 China; 4.Hebei United University Tangshan Hebei 063000 China) Abstract:Based on dynamic paction engineering of Caofeidian industrial area the authors analyze attenuation law of dynamic paction vibration under different tamping energy in dredger fill foundation and propose attenuation experience formula of horizontal and vertical vibration acceleration.They also analyze the effect of isolation trench with different depth width and fillings on vibration transfer.The results show that the depth of isolation trench has great effect which should be less than 3 meters or 1/5 depth of underground structure ...
[关键词]地基;滑坡;注浆;钢管桩;扩大基础;施工技术 [中图分类号】TU753[文献标识码]A[文章编号】1002-8498(2015)13-0043-04 ApplicationofRock-socketedSteelPipeCementCombinationPile inFoundationTreatment WangWeiwei,Yi Da (The Third Engineering Co.,Ltd.of theFirstHighway Engineering Bureau of CCCC,Bejing101102,China) Abstract:According to the terrain,spread foundation and grouting steel pipe pilewere adopted for mixing station in landslide slope. The load of structure dispersed in grouting steel pipe pile,which can play a role on pressure foot and anti-slide.This paper mainly introduced the construction technology of spread foundation and grouting stee pipe pile, engineering practice shows that good effect is obtained. Key words:foundations;landslides; grouting; steel pipe piles; spread foundation; construction 1工程概况 采用嵌岩钢管水泥浆组合桩处理地基并采用钢筋 万利高速公路沿线山地广布,丘谷相连,地势混凝土扩大基础的形式。
[关键词]地质工程;大型古滑坡体;局部复活蟠滑;混凝土加固;分析 [中图分类号]TU94[文献标识码]A[文章编号]1002-8498(2015)12-0109-06 TreatmentCountermeasuresStudyandRevivedGenesisofa LargeAncientLandslideMassinQingxu ofShanxiProvince Liu Wu (Beijing Geo-engineering Design and Research Institue,Beijing100500,China) Abstract:Taking a large ancient landslide mass treatment engineering at Qingxu as an example, the basic features and genesis of local revived creep-slide-mass of the ancient landslide is discussed,the stability of creep-slide-mass is evaluated and analyzed. The design scheme of creep-slide-mass treatment engineering is proposed.Then rationality and effectiveness of the exploration evaluation and treatment design for the landslide through the process of treatment construction are analyzed,at the same time,some problems and hidden trouble existing in treatment aspect are discussed as well. Key words:geological engineering; large ancient landslide; local revived creep; concrete reinforcement; analysis
1工程背景 本文所介绍的古滑坡原为一稳定的古滑坡,位于 太原市清徐县某矿区的拟建工业广场附近,近年,因 矿区整体规划开采建设需要,对拟建工业广场范围内 的地形、地貌进行了开挖与平整,主要用于采矿斜井 的施工场地、兴建厂房及配套设施。
目前,古滑坡的 中部、下部已被开挖并平整成2个大平台,滑坡的前拟建工 缘也被掩埋。
2013年雨季过后,在古滑坡的北西侧 出现了多条地裂缝,同时,在省道S316近东西段的南图1场地位置示意 侧附近也出现了深度、宽度较大的地裂缝及地面沉Fig.1 Site location 陷。
[关键词】钢结构;预应力;拉索;张拉;施工技术 [中图分类号】TU394;TU758[文献标识码]A [文章编号】1002-8498(2014)14-0131-04 Prestressed Tensioning ConstructionforHotExtrudedEthylene HighStrengthWire CableofShanxiSports Center Gymnasium ZhouXiangchun (Shanxi Province Government ConstructionAuthority,Taiyuan,Shanxi030013,China) Abstract:The hot extruded ethylene high-strength wire cable tensioning construction wasresearched.The application of this technology in the construction of Shanxi Sports Center Gymnasium project was introduced,including requirements specifications and technical indicators of the anchorage and cable material, the flow and key points of cable production, cable laying device, steps,methods and precautions, cable lifting and traction points, cable tensile strength,classification,principle and procedure principle,and so on.The construction technology canmeet therequirements of large span and large space. Key words;steel structures; prestressing;tensile cable; tensioning; construction 1工程概况 山西体育中心体育馆工程,位于太原市南部的 晋源区,建筑面积近30000m²,设8000座,比赛场 地上空跨度最大、最宽处达90m左右,主体结构为 自行车馆 钢筋混凝土结构,屋面结构形式采用多重弦支网壳 体育馆 游泳馆 +空腹桁架+鱼腹式桁架,多重弦支网壳下部为预 图1山西体育中心 应力钢索。
预应力钢索采用热挤塑乙烯高强钢丝 Fig.1 Shanxi Sports Center 拉索预应力张拉技术。
施工技术 2014年1月上 32 CONSTRUCTION TECHNOLOGY 第43卷第1期 D0I:10.7672/sgjs2014010032 山地大直径微变形减震桩施工技术* 程群,刘睿,罗宗礼,胡畔,吴小鑫,刘岩棚 (中建四局第六建筑工程有限公司,贵州贵阳550000) [摘要]通过工程实例,介绍了微变形减震柱施工技术的特点、难点以及减震桩隔离层材料的选择.从水磨钻成 孔、混凝土护壁浇筑、隔离层施工等几个方面详细介绍了该技术的施工工艺流程和控制要点.实践结果表明,该技 术施工效率高、质量可靠,降低了施工成本. [关键词]桩;减震桩;隔离层;挤塑板;施工技术 [中图分类号]TU753.3 [文献标识码]A [文章编号]1002-8498(2014)01-0032-03 Construction Technology of Large-diameter Vibration Reduction Pile in Mountain Cheng Qun Liu Rui Luo Zongli Hu Pan Wu Xiaoxin Liu Yanpeng China Construction 4th Engineering Bureau 6th Co.Ld.Guiyang Guizhou 550000 China) Abstract:Based on engineering practice this paper introduced characteristics and difficulties of vibration reduction pile construction technology and materials choice of isolation layer.Construction technique and control points are mainly introduced from drilling concrete protection wall pouring and isolation layer. Engineering practice shows that this technology can improve construction efficiency ensure quality and reduce the cost. Key words:piles;vibration reduction pile;isolation layer;plastic extrusion plate;construction 1工程概况 贵阳花果园办公1号楼项目位于贵阳市彭家湾 花果园大道,工程占地面积约12000m2 山底与山 顶均存在桩基基础,通过型钢混凝土转换梁将山顶 与山底主体结构进行连接.其中山顶基础因受力 形式存在两种类型桩基,分别为竖向受荷桩与抗剪 桩,靠近边坡为竖向受荷桩,靠近坡顶中心为抗剪 桩.该建筑物结构剖面如图1所示. 靠边坡一侧竖向受荷桩因距离边坡较近,为保 图1建筑物结构剖面 证边坡稳定,设计方面要求该处孔桩桩壁四周增设 Fig.1 Profile of the building 隔离层,隔离层需起到减震作用,以减少孔桩水平 风化岩层,岩层较厚.通过边坡稳定性分析发现其 方向荷载对山体边坡的影响.本工程微变形减震 稳定性较差,需进行硬化以保证边坡稳定性.在孔 柱隔离层采用宽10cm、厚5 cm XPS挤塑板拼装而 桩施工中对山体边坡的扰动极易造成边坡失稳,具 成,如图2所示. 有较大的安全隐患...
2013年1月下 施工技术 第42卷第2期 CONSTRUCTION TECHNOLOGY 9 山东省博物馆新馆悬挂式穹顶金属屋面施工技术 闫新郑 (郑州大学第一附属医院,河南郑州450052) [摘要]山东省博物馆新馆屋面为悬挂式弯顶金属屋面,屋面龙骨通过280根吊杆吊挂在外部花瓣形弯顶钢结构 上,屋面由蜂窝板装饰层、无机纤维喷涂保温层、防水层等组成,施工难度大、质量要求高.详细介绍了龙骨吊装、 防水层施工、保温喷涂、蜂窝板安装等施工工艺,经过科学组织、精心施工,确保了悬挂式穹顶金属屋面施工的质量 和工期,取得了良好的社会和经济效益. [关键词]钢结构;穹顶;屋面;悬挂式;施工技术 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2013)02-0009-04 Construction of the Metal Suspension Dome Roof of Shandong New Museum Yan Xinzheng (The First Affiliated Hospital of Zhengzhou University Zhengzhou He'nan 450052 China) Abstract:The roof of Shandong New Museum is a metal suspension dome whose keel is hung to the outer pedal-shaped steel dome by 280 links.The roof consists of decorative honeyb panel layer inorganic fiber spayed insulation layer waterproofing layer etc.These features imposed difficulties to the construction and high requirements to the construction quality.This paper introduces the keel hoisting and installing waterproof layer construction insulation spraying and honeyb panel installation in detail.Through scientific organization and precise construction the metal suspension dome roof was finished on schedule and the construction quality was satisfactory.Excellent social and economic benefits were gained with the proposed construction method. Key words:steel structures;dome;roofs;suspension;construction 1工程概况 山东省博物馆新馆工程(见图1)屋面结构独 特,外层为弯顶钢结构,其下为由280个吊杆悬挂 32福拱形梁、25道环向梁组成的钢结构网壳,网壳 上安装蜂窝铝板装饰面层、保温层、防水层及底层 板.蜂窝铝板装饰面层和底部的防水保温层构成 了本工程的悬挂式穹顶金属屋面,屋面为三维构 图1山东省博物馆新馆 件,属...
2010年12月 施工技术 第39卷第12期 CONSTRUCTION TECHNOLOGY 87 宁淮高速红砂岩深路堑开挖技术 武喜 (山西省公路局大同分局,山西大同037006) 【摘要]红砂岩强度变化大,受气候、温度、日照、雨水等外部环境因素影响较大,因此在进行红砂岩深路堑开挖过 程中,需要采取必要的措施,控制红砂岩的风化速度.结合宁淮高速公路红砂岩深路开挖工程,从施工准备、开 挖方法、质量控制3方面进行分析研究.重点介绍了开挖施工的机械准备、测量放样、排水设施,指出需婴根据开 挖深度、纵向长度、地形等选择不同的开挖方法,其中包括横挖法、纵挖法、混合式开挖法等. [关键词]红砂岩;深路堑;开挖;挖掘方法 【中图分类号]U416.1 [文献标识码]A[文章编号]1002-8498(2010)12-0087-04 Construction Technology of Deep Cutting Excavation in Red Sandstone Wu Xi Datong Branch of Shanxi Highway Bureau Datong Shanxi 037006 China) Abstract:Red sandstone has large change in strength and is influenced by climate temperature sunshine rain greatly.As a result during deep cutting excavation in red sandstone necessary methods should be applied to control the weathering velocity of red sandstone.Combining with Nanjing-Huai Expressway excavation in red sandstone the construction technology is analyzed from construction preparation excavation methods and quality control.The machine preparation measurement and lofting drainage facilities are introduced in detail.It is pointed out that excavation methods should be chosen according to excavation depth longitudinal length terrain and so on which can include transverse excavation method longitudinal excavation method and hybrid excavation method. Key words:red sandstone;deep cutting:excavation;excavation method 红砂岩是一种主要由泥岩、砂质泥岩、泥质砂岩、淮高速公路南京江北段NH-JB3标的施工经验,浅谈采 砂岩及页岩等成分组成的软质沉积岩.由于其内部含用机械法对红砂岩深路董开挖的施工技术措施. 有丰富的氧化物,通常呈现出红色、深红色或暗红色.1工程概况 这种岩类主要分布在南方各省区,项目所在的江苏省 宁淮高速NH-JB3标段起...
2010年7月 施工技术 第39卷第7期 CONSTRUCTION TECHNOLOCY 93 宁波博物馆瓦墙施工技术 韩玉德1,吴庆兵2,陈海燕2 (1.宁波市州区城市建设投资发展有限公司,浙江宁波315105; 2.浙江省二建建设集团有限公司,浙江宁波315000) [摘要]宁波博物馆用大量旧砖旧瓦等当地材料和浙东地区民间流传的瓦爿墙建造工艺打造出其有宁波地域文化 特征和新乡土主义风格的宁波博物馆.宁波博物馆瓦爿墙由瓦爿墙、瓦墙衬墙、构造空腔和内隔墙构成,很好地 解决了传统瓦墙防水、隔热保温差的问题:利用托梁结构增加瓦墙的稳定性和整体性.施工时,利用计算机模 拟立面效果,然后进行放样和立面观感效果控制.通过采用这些技术,取得了良好的建筑效果. [关键词]瓦墙;衬墙;托梁;施工技术 [中图分类号]TU767.5 [文献标识码]A[文章编号]1002-8498(2010)07-0093-03 Construction Technology on Tile Walls in Ningbo Museum Han Yude' Wu Qingbing? Chen Haiyan2 (1.City Construction Investment Development Co.Ltd.of Yinzhou District in Ningbo Ningbo Zhejiang 315105 China; 2.Zhejiang Province Erjian Construction Group Co.Lad.Ningbo Zhejiang 315000 China) Abstract:Ningbo Museum uses many local materials such as old masonry and old tiles and traditional tile wall which has regional culture characteristics and new vernacularism architecture style.The tile wall in the museum is posed of thin tile wall liner wall construction cavity and inner partition wall which can successfully solve the problems of water-proofing and bad heat-insulation function.The support beams can strengthen stability and integrity of this wall.During construction construction lofting is done and elevation effect is controlled by simulating building elevation effect with puter.By taking these measures good architecture effect is achieved. Key words:tile wall;liner wall;support beam;construction technology 瓦墙是浙东地区民间的,以就地取材的各种旧 砖、旧瓦等废旧建筑材料为主材,草筋黄泥或黄泥加白 石灰为黏结辅料,采用层层叠砌的工艺砌筑而成的一 种培体....
[关键词]安装工程;蜂窝状网架;吊装;支撑;拼装;施工技术 [中图分类号]TU758.11 [文献标识码】A [文章编号】1002-8498(2017)02-0005-03 HoneybGridConstructionTechnologyofNingxia InternationalConference Center Xu Gang,SunXiafeng,Yang Jianming,Zhang Dongliang (Jiangsu Huning Steel Mechanism Co.,Ld.,Yixing,Jiangsu 214231,China) AbstractNingxia International Conference Center outer yarn steel structure design is novel, the shape is unique,and the construction is difficult. Through the analysis of the structure characteristics of the honeyb grid and the actual construction site environment, the construction scheme of space truss is established.The scheme is divided into a reasonable structure and a temporary support system is used to make full use of the structural features,which can ensure the installation accuracy,safety of the construction and improve the installation efficiency. Key words;installation;honeyb grid;hoists; supports; assembling: construction 1工程概况 宁夏国际会议中心是中阿经贸论坛永久性会 址,也是宁夏具有重要国际影响力的大型会展建 筑。
2015年1月下 施工技术 第44卷第2期 CONSTRUCTION TECHNOLOGY 9 D01:10.7672/sgjs2015020009 天津高银117大厦超长超大直径锚栓群施工技术* 陈志刚1 2,叶建2 (1.武汉大学土木建筑工程学院,湖北武汉430072; 2.中建三局集团有限公司工程总承包公司,湖北武汉430064) [摘要]随着钢板混凝土组合剪力墙、钢管混凝土柱、型钢混凝土柱等构件形式愈加广泛地应用于超高层建筑结 构中,上述构件与基础筏板连接时面临的超长超大直径锚栓群施工问题愈发突出.基于天津高银117大厦巨型钢 柱及钢板混凝土组合剪力墙底部超长超大直径铺栓群施工实际,通过模拟试验,分析得出大体积混凝土水化过程 中混凝土自身应变对锚栓初始应力的影响在设计允许范固内;基于这一结果,将带套筒的错栓优化为直埋式的错 栓,保证了施工质量,加快了工期;通过设置错栓支撑架、分段分片吊装,保证了铺栓的精准定位以及固定的可靠 性.通过上述研究,形成了大直径铺栓群定位技术、大直径错栓群安装施工技术、大体积混凝土应变对超长大直径 高强错栓初始应力影响分析等超长超大直径锚栓群施工关键技术. [关键词]高层建筑;锚栓;初始应力;定位;吊装 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2015)02-0009-06 Construction of Super-long and Super-large Diameter Anchor Bolts in Tianjin Gaoyin 117 Building Chen Zhigang.2 Ye Jian2 (1.School of Civil and Architectural Engineering Wuhan University Wuhan Hubei 430072 China; 2.General Construction Company of CCTEB Group Co. Ltd. Wuhan Hubei 430064 China) Abstract:With the wider application of steel plate concrete shear wall concrete filled steel tubular column and steel reinforced concrete column in super high-rise building construction issues of super-long and super-large diameter anchor bolts are more prominent when the above members are connected to the foundation raft.Based on the construction practice of super-long and super-large diameter anchor bolts of the giant steel column and steel plate concrete shear wall of Tianjin Gaoyin 117 Building it is concluded that the effect of the concrete strain on initial stress of anchor bolts is in design range through tes...
2015年12月上 施工技术 第44卷第23期 CONSTRUCTION TECHNOLOGY 19 D0I:10.7672/sgjs2015230019 天津高银117大厦无石棉纤维水泥吸声压力 板墙面系统研究与应用 邓德儒,李百川,毋伟,艾心荧,李强 (中建三局集团有限公司工程总承包公司,湖北武汉430064) [摘要]大型项目的功能设备房间对防火、隔声等诸多方面有严格的要求.提出并应用了一种基于无石棉纤维水 泥吸声压力板、离心玻璃棉、轻钢龙骨3种材料的墙面系统,相对于传统墙面隔声材料,其具有轻质、牢固、不燃、隔 声、耐久等优势,不仅能满足大型项目功能设备房间的各项技术要求,而且还有施工方便、质量易控等诸多优点. 经天津高银117大厦工程功能设备机房墙面实际应用,其效果良好. [关键词]高层建筑;设备机房;无石棉纤维水泥吸声压力板;离心玻璃棉;轻钢龙骨 [中图分类号]TU525 [文献标识码]A[文章编号]1002-8498(2015)23-0019-04 Research and Application of Non-asbestos Fiber Cement Sound Absorption Pressure Plate Wall System in Tianjin Gaoyin 117 Building Deng Deru Li Baichuan Wu Wei Ai Xinying Li Qiang (General Construction Company of CCTEB Group Co.Ltd.Wuhan Hubei 430064 China) Abstract:The functional equipment rooms for large projects have strict requirements for fire prevention sound insulation and many aspects.In this paper the one of wall systems is proposed and applied based on non-asbestos fiber cement sound absorption pressure plate centrifugal glass wool light steel keel pared with the traditional wall insulation material which has the advantages of light weight firmness no burning sound insulation durability and other advantages non-asbestos fiber cement sound absorption pressure plate wall system can not only meet all the technical requirements of the functional equipment room for large projects but also has two major advantages which are convenient construction and easy to control quality.According to practical application of function equipment room wal...
2016年10月上 施工技术 第45卷第19期 CONSTRUCTION TECHNOLOGY D0I:10.7672/5j52016190001 天津高银117大厦底板钢筋施工关键技术 叶建1,余地华2,胡佳楠1,付国1,司清海,刘浩昆1 (1.中建三局集团有限公司工程总承包公司,湖北武汉430064; 2.中建三局集团有限公司,湖北武汉430064) [摘要]天津高银117大厦基础底板截面尺寸大,底板内钢筋密集、直径大、钢筋网片面积大且层数多,内设众多复 杂埋件,对钢筋加工及钢筋支撑架立体系设计提出了巨大挑战.针对上述施工难题,项目首先采用施工现场钢筋 自动化集中加工与统一配送的生产模式,大大提高了钢筋加工与配送效率,降低了工程成本;其次通过技术攻关, 采用钢管扣件式支撑作为底板钢筋支撑体系,并对底板钢筋进行优化设计,提高了工效,降低了劳动强度,加快了 施工速度,施工质量及工期效益好. [关键词]高层建筑;钢筋工程;支撑;施工技术 [中图分类号]TU755.3 [文献标识码]A[文章编号]1002-8498(2016)19-0001-03 Construction Technology of Bottom Plate Reinforcement of Tianjin Gaoyin 117 Building Ye Jian' Yu Dihua2 Hu Jia’nan' Fu Guo' Si Qinghai Liu Haokun (1.General Construction Company of CCTEB Group Co.Ltd.Wuhan Hubei 430064 China; 2.China Construction Third Engineering Bureau Group Co.Lad.Wuhan Hubei 430064 China) Abstract:Tianjin Gaoyin 117 building foundation slab has large size.Reinforcement fabric piece area is large and dense layer with many plicated embedded parts which puts forward the big challenge of steel processing and steel brace system design.In accordance with the problems of the construction firstly using the construction site reinforced centralized processing and uniform distribution automation of the production mode which greatly improves the efficiency of steel processing and distribution reduces the engineering cost.Secondly through technical research the adoption steel pipe fastener type support as a base plate reinforced support system carries on the optimization design of floor reinforc...
施工技术 2017年9月下 22 CONSTRUCTION TECHNOLOGY 第46卷第18期 D0I:10.7672/js2017180022 天津滨海国际机场T2航站楼主楼屋盖 钢网架施工分析 蒋跃楠1,刘华2,李水明2 (1.金陵科技学院建筑工程学院,江苏南京211169;2.江苏沪宁钢机股份有限公司,江苏宜兴214231) [摘要]天津滨海国际机场2航站楼主楼屋盖工程结构复杂,跨度大,钢构件种类及数量多.采用了提升和吊装 联合施工方法,其中吊装区布置在建筑物外侧,分为吊装1区、2区和悬挑区3部分,采用地面拼装,设置临时支撑 和分块吊装等施工步骤.为有效地控制网架变形,提高安装精度,施工前对分块吊装和支撑卸载过程进行了仿真 分析,结果表明:该网架结构在施工各阶段,内力和变形值均在合理范围内. [关键词]钢结构;安装工程;网架;临时支撑;有限元分析 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2017)18-0022-04 Construction Analysis of Steel Truss of Main Building Roof in Tianjin Binhai International Airport Terminal 2 JIANG Yuenan' LIU Hua2 LI Shuiming? (1.Architectural Engineering Institute Jinling Institute of Technology Nanjing Jiangsu 211169 China: 2.Jiangsu Huning Steel Mechanism Co.Ltd.Yixing Jiangsu 214231 China) Abstract:The main building roof has plex structure and large span and kinds of steel members in Tianjin Binhai International Airport Terminal 2.The roof truss is constructed by lifting and hoisting.The hoisting area is around the building and is divided into section 1 section 2 and cantilever section.The roof truss is installed on ground and set temporary supports and partition hoisted.In order to control the deformation of truss and improve precision the course of hoisting and unloading is simulated the results show that the internal force and deformation are within reasonable bounds. Key words:steel structures;installation;trusses;temporary supports;finite element analysis 1工程概况 同步控制液压提升系统整体提升;吊装1区、吊装2 天津滨海国际机场2航站楼由主楼(A段)与区和屋盖悬挑...
施工技术 2010年1月 14 CONSTRUCTION TECHNOLOGY 第39卷第1期 天津津塔工程超大深基坑施工技术 田贺维,周予启,刘卫未 (中建一局集团建设发展有限公司,北京100012) [摘要]天津津塔工程建筑高度336.9m 是目前华北地区最高建筑.其基坑面积19764m2 基坑开挖深度达 -32.1m.工程整体采用顺作法.周边围护结构采用两墙合一的地下连续墙和双圆环钢筋混凝土内支撑体系,支 撑立柱采用钻孔灌注桩内插角钢格构柱形式.止水帷幕和基底加固采用高压旋喷桩,解决了基坑抗渗和土体加固 问题;大小环岛式土方开挖技术配合旋转坡道,解决了土层软且基坑开挖深度深问题;支撑结构“闷拆保证了主体 结构正常向上施工;信息化手段可保证及时调整施工方案,保证超大、超深基坑安全稳定施工. [关键词]天津津塔;基坑;地下连续墙;双圆环内支撑;高压旋喷桩;信息化 [中图分类号]TU753.1 [文献标识码]A[文章编号]1002-8498(2010)01-0014-08 Construction Technology of Super Large and Deep Foundation Excavation in Tianjin Tower Tian Hewei Zhou Yuqi Liu Weiwei (China Construction First Division Group Construction Development Co.Ltd.Beijing 100012 China) Abstract:Tianjin Tower with height of 336.9 meters is the highest building in North China whose foundation excavation area is 19 764 square meters and excavation depth is 32.1 meters.Sequential construction method is adopted in integral structure.Diaphragm wall is used as surrounding structure during construction and external wall of basement when the project is pleted.Furthermore the double circle reinforced concrete internal support is decided and bored piles filled with angle iron lattice column are used as support column.Moreover some other technologies are used to solve special problems in the project such as high-pressure jet grouting piles as water-proofing curtain and foundation reinforcement; excavating soil in island ring pounding with rotating slopes to solve problems of soft soil and deep foundation excavation;clo...
施工技术 2011年9月下 64 CONSTRUCTION TECHNOLOGY 第40卷第349期 天津津塔外围护幕墙施工技术 方翼鹏1,王荣国2,卜楠楠2,金凤文2,贾磊2 (1.北京江河幕墙股份有限公司,北京101300;2.中建一局集团发展有限公司,北京100102) [摘要]天津津塔办公楼外围护幕墙为渐变的双曲面折扇形,大型玻璃吊装困难,定位放线及变形挖制要求高,施 工技术复杂.针对工程难点,采取三维可调埋件、转接件及工机具的合理化组合,确保了单元体的吊装和幕墙整体 双曲面扭拧效果的实现,有效降低了施工成本,提高了施工质量和效率. [关键词]高层建筑;幕墙;安装;施工技术 [中图分类号]TU758.11 [文献标识码]A[文章编号]1002-8498(2011)18-0064-04 Construction Technology of External Retaining Curtain Wall in Tianjin Jinta Mansion Fang Yipeng' Wang Rongguo2 Bu Nannan2 Jin Fengwen2 Jia Lei (1.Beijing Jangho Curtain Wall Co.Ltd.Beijing 101300 China; 2.China Construction First Diuision Group Construction Development Co.Ltd.Beijing 100102 China) Abstract:External retaining curtain wall of Tianjin Jinta Mansion is designed as gradually variational hyperboloid sectorial shape.Hoisting of large-scale glasses is difficult.Location lofting and deformation control have strict requirements and the construction technology is plex.According to engineering difficulties 3D adjustable built-in fitting connector and reasonable bination of instruments are adopted.Hoisting of unit structure is ensured and effect of hyperboloid torsion is achieved.The cost is reduced and construction quality and efficiency are improved. Key words:tall buildings;curtain walls;installation;construction 随着现代建筑科技的飞速发展,建筑外围护幕实现. 墙越来越多地应用到超高层建筑外围护结构中,将 现代建筑的建筑技术、建筑艺术和建筑功能融为一 体,展现了现代建筑的艺术魅力和时代感.外围护 幕墙的施工技术和方法是这种艺术魅力和时代感得 以最大化发挥的重要保证.本文通过天津津塔幕墙 工程的施工,介绍了超高层建筑外围护幕墙的施工 技术及方法. 1工程概况 天津津塔办公楼地上75层,地下4层,高 336.9m 属超高层建筑....