施工技术 2011年10月下 46 CONSTRUCTION TECHNOLOGY 第40卷第351期 通省特长隧道软岩大变形机理及处治措施 沈峰1,成词峰2,刘桂兵3 (1.湖北省高速公路集团有限公司,湖北武汉430051;2,中国地质大学工程学院,湖北武汉430074; 3.中铁十七局集团第三工程有限公司,河北石家庄050081) [摘要]在现场调研及隧道监控量测的基础上,研究了十堰至房县高速公路通省隧道施工中出现的大变形问题,通 过分析该隧道大变形破坏的特点,从围岩岩性条件、工程结构受力和施工因素等方面对该隧道的大变形机制进行 了研究.结果表明通省隧道发生大变形的主导因素是隧道所处的地质环境和软弱围岩,而施工开挖卸荷是产生大 变形的诱因.结合研究成果提出针对大变形段的治理措施,监控量测结果表明该治理措施取得较好效果. [关键词]隧道工程;软岩;变形;监测 [中图分类号]U213 [文献标识码]A [文章编号]1002-8498(2011)20-0046-04 Mechanism and Control Measures of Large Deformation of Tongsheng Tunnel Shen Feng' Cheng Cifeng? Liu Guibing' (1.Hubei Expressway Co.Lad.Wuhan Hubei 430051 China;2.Faculty of Engineering China University of Geosciences Wuhan Hubei 430074 China:3.CR17BG No.3 Engineering Co.Ltd.Shijiazhuang Hebei 050081 China) Abstract:Based on field investigation and monitoring measurement the large deformation of Tongsheng tunnel on Shiyan-Fangxian Highway is studied.By analyzing the features of deformation and failure of the tunnel the mechanism of large deformation is discussed from surrounding rocks conditions construction factors and construction.It is found that the special geological environments and soft surrounding rocks caused the large deformation.Countermeasures are proposed on basis of the study results in the construction and satisfactory effects are achieved. Key words:tunnels;soft rock;deformation;monitoring 1工程概况 治理措施,为保证全线隧道施工安全顺利,有着十分 通省隧道是湖北省十堰至房县高速公路上的特重要的意义. 长隧道,是全线的控制性工程.左线设计长度2地质条件 6900m 右线设计长度6873m.隧道为三心圆曲墙 2.1地形地貌 断面,拱半径R1=5.60m 曲墙半径R2=8...
[关键词】高层建筑;地下工程;逆作法;型钢柱;施工技术 [中图分类号]TU745.5 [文献标识码】A [文章编号】1002-8498(2016)01-0028-05 ResearchandApplication ofSteel Column Construction TechnologyofTop-downMethod Liu Gang (Shanxi Sijian Group Co.,Lud.,Taiyuan,Shanxi030012,China) Abstract:Top-down method was adopted in a project,and steel reinforced concrete structure was used as vertical structure.According to the organization and technical innovation,insert connection and integrated construction of steel column and steel support were realized.This method ensured the reasonable conversion of vertical force transfer system,and the parameters can meet the requirement of design and standard. Characteristics,construction principle and technology points were introduced in detail. Key words:tall buildings;underground; top-down method;steel column;construction 随着我国建筑业的发展,高层、超高层建筑正13600㎡²,总建筑面积12.7万㎡²,其中地上 在不断地崛起,地下部分在实际施工时由于受施工8.7万㎡²,地下4.01万㎡²。
施工技术 2015年10月下 114 CONSTRUCTION TECHNOLOGY 第44卷第20期 D0I:10.7672/sgj82015200114 逆作法结合格构柱与贝雷架模板支撑 体系设计与应用 杨建江,杨乐 (天津大学建筑工程学院,天津300072) [摘要]结合长沙某超高层建筑地下结构施工的工程实例,介绍了逆作法结合格构柱与贝雷架模板支撑体系的工 程设计、节点构造;明确了施工工艺流程与要点;并对实际工程中的支撑体系进行设计验算.结果表明,该支撑体 系满足承载力要求;指出将逆作法与该模板支撑体系结合,较好地解决了深基坑开挖对相邻高层建筑基础扰动这 一难点,从而保证了施工安全,降低了施工难度,缩短了施工周期. [关键词]高层建筑;逆作法;格构柱;贝雷架;支撑体系 [中图分类号]TU745.3 [文献标识码]A [文章编号]1002-8498(2015)20-0114-03 Design and Application of Top-down Construction Method Combining with Lattice Column and Bailey Frame Formwork Supports Yang Jianjiang Yang Le School of Civil Engineering Tianjin University Tianjin 300072 China) Abstract:With an underground structure construction project of super high-rise building in Changsha the project design joint construction calculation construction process and point of top-down method bining with lattice column and Bailey frame formwork supports system are discussed.The results confirm that the system meets bearing capacity and solves the problem of disturbance to adjacent high-rise building's foundation.Therefore the construction safety is assured and construction period is shortened. Key words:tall buildings;top-down construction;lattice column;Bailey frame;supports 1工程概况 2施工要点分析 某工程地处湖南省长沙市芙蓉区,该工程由 南侧基坑施工时,地下室基础垫层标高为 T1 T22栋塔楼和相应裙楼组成,总建筑面积约98 -34.000m.如果采用逆作法结合常规的高支模施 万m2.T1塔楼总高度452m 地上95层(包括6层 工方案,则满堂脚手架需要搭设的高度为34.0m 大 裙楼);T2塔楼总高度315m 地上63层(包括6层 部分脚手架立杆将立在斜土坡上.由于斜土坡的 裙楼);T1和T2塔楼地下均为7层(包括2层夹坡度较大,立杆搭设后不容易满足稳定性要求;并 层).由于该项目地处长沙市中心,其基坑南北两 且从上至下每施工完一层后,当进行斜坡土...
2012年1月上 施工技术 第41卷第356期 CONSTRUCTION TECHNOLOGY 3 逆作法施工工艺在软土地质条件下的应用与实践 王允恭,赵琪 (上海市第二建筑有限公司,上海200080) [摘要]介绍了逆作法施工工艺的技术背景、发展状况以及技术特点.结合工程实践经验,从围护结构、竖向支撑 体系、水平支护结构以及土方开挖作业等几个方面介绍了逆作法施工的关键技术.对逆作法近年来的发展趋势进 行了阐述,并提出了未来的研究方向,包括加强对逆作结构受力机理和变形特点的研究,研发地下挖运土设备,发 展巨型桩等. [关键词]地下工程;逆作法;软土;施工技术 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2012)01-0003-04 Application and Practice of Inverse Method in Soft Soil Layer Wang Yungong Zhao Qi (Shanghai No.2 Construction Co.Ltd. Shanghai 200080 China) Abstract:Authors introduce technical background development status and technical characteristics on inverse method.Based on engineering practice authors introduce key technologies of inverse method from retaining structure vertical support system horizontal support structure and earth excavation. Furthermore authors expound trend of inverse method and propose research direction including research on stress mechanism and deformation characteristics of reverse structure developing digging and earthmoving equipment and huge piles. Key words:underground;inverse method;soft soil;construction 1概述 进的施工经验,引进了逆作法施工技术. 1.1技术背景 1.2发展状况 随着我国经济的飞速发展,城市规模得到了巨 1935年日本首次提出逆作法工艺的概念,经历 大的扩张,开发地下空间也日益被人们所接受和重 了70余年的研究和工程实践,目前已较广泛地应用 视,上海地区地铁工程、地下变电站、地下商场工 于高层和超高层的多层地下室、大型地下商场、地 程、地下停车库等大力开发就是一个佐证.开发和 下车库、地铁、隧道、大型污水处理池等结构. 利用地下空间,首要进行的就是大规模的土方开 在实际工程方面,日本、美国、英国、法国、德国 挖,随着地下工程的建设发展,深基坑支护体系的 等国和我国台湾地区等都有成熟的应用.其中典 设计计算和施工方法也在不断地更新和完善. 型的工程有:世界上最大的地下街日本东京八重洲 敞开式开挖是传统的深基坑施工方法,随着多 地下商业街,共3层,建筑面积7万m2;最深的地下 年的工程积累,已经有了十分成熟的设计方法和施 街莫斯科...
2011年7月上 施工技术 第40卷第344期 CONSTRUCTION TECHNOLOGY 69 逆作法基坑工程监测综述 刘铭,张震 (同济大学地下建筑与工程系,上海200092) [摘要]总结了我国逆作法基坑工程建设、规范及监测的发展历程,以及规范关于逆作法基坑监测的规定.讨论了 逆作法基坑工程几个关键项目的监测方法,包括立柱差异沉降监测及立柱与围护墙差异沉降监测、结构梁板内力 监测、坑底隆起监测;指出了目前逆作法基坑监测中存在的问题,最后展望了道作法监测的发展趋势. [关键词]逆作法;深基坑;监测;综述 [中图分类号]TU753.1 [文献标识码]A [文章编号]1002-8498(2011)13-0069-03 Review of the Monitoring of Top-down Excavation Liu Ming Zhang Zhen Department of Geotechnical Engineering Tongji University Shanghai 200092 China) Abstract:Firstly the development process of construction specifications and monitoring of top-down excavation are summarized as well as the specification of monitoring on the top-down excavation. Secondly several key project monitoring methods are discussed including the monitoring of column differential settlement internal forces of structural slab and uplift at the bottom of the foundation excavation.Then the current problems in top-down excavation monitoring are pointed out.Finally the trends of monitoring of top-down excavation are predicted. Key words:top-down construction method;deep foundation excavation;monitoring:review 近年来,我国基坑工程呈现出如下新特点:基坑多数逆作法基坑很难找到文献报道其监测内容,或 的规模和开挖深度越来越大、场地紧凑、基坑周边环者监测项目非常简单. 境复杂敏感.1955年哈尔滨地下人防工程中首次 2)20世纪90年代中后期这个时期北京、上 应用了逆作法施工工艺,1989年上海特种基础工程 海、广州等地大规模地铁建设,盖挖法得到了大规模 研究所办公大楼,是全国第1个采取封闭式逆作法 的应用,同时该时期出现了一定规模的地下空间的 施工的工程.20世纪90年代中后期,北京、上海、开发与利用.这个时期逆作法基坑深度一般在10m 广州等地大规模地铁建设的兴起,适用于闹市区浅 左右,也有少量深度接近15m的深基坑. 地层中施工的盖挖法得到了大规模应用. 我国规范关于基坑工程监测的指导进入了初步 逆作法施工工艺在我国还处于工程实践和理论 发展时期.先后出台了几部行业标准和国家标准, 研究的初期,...
2014年7月上 施工技术 第43卷第13期 CONSTRUCTION TECHNOLOGY 15 D0I:10.7672/sgjs2014130015 逆作法地下结构一柱一桩支承系统施工质量控制技术 李涛 (南京市建筑安装工程质量监督站,江苏南京210007) [摘要]一柱一桩是逆作法地下结构竖向支承系统最常用的形式.结合工程实例,总结了一柱一柱支承系统施工 全过程多项质量控制技术,特别是针对立柱定位和垂直度控制这一质量控制难点进行了技术创新,探索出柱底定 位加孔口柱顶调垂这一便捷有效的解决途径.实践结果表明,各项质量控制技术取得了明显成效. [关键词]地下工程;逆作法;垂直度;施工技术;质量控制 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2014)13-0015-04 Quality Control Technology of One Column with One Pile Supporting System in Underground Structure with Top-down Method Li Tao (Nanjing Engineering Quality Supervision Station of Construction and Installation Nanjing Jiangsu 210007 China) Abstract:One column with one pile is the main vertical supporting system of underground structure with top-down method.Based on engineering practice several quality control technologies of one column with one pile supporting system are summarized in this paper.Through technological innovation the location and perpendicular of column which is the difficulty in quality control has been conveniently and effectively solved by locating column bottom and adjusting column top.The engineering practice indicated that the quality control technology achieved successful results. Key words:underground;top-down method;verticality;construction;quality control 1结构形式 也是工程质量控制的重点.本文结合工程实例,总 目前地下结构逆作法施工时,较多采用支护结结了逆作法一柱一桩支承系统施工中主要的质量 构与主体结构全面结合的形式,即采用地下连续墙 控制技术. 作为围护结构,并兼作地下结构外墙;主体结构水2工程概况 平梁板体系作为围护结构的水平支撑;主体地下结 南京市某大型商业综合体工程为框架筒体结 构柱及柱下桩作为竖向支承系统,在基础底板浇筑 构,地下5层,地上42层,总建筑面积约18.5万m2. 完成前的逆作法施工阶段承受地下、地上各层的结 工程地下结构...
施工技术 2011年5月上 92 CONSTRUCTION TECHNOLOGY 第40卷第340 逆作法在某综合楼工程中的应用 罗红亮,辛江涛,赵建立 (中冶天工上海十三冶建设有限公司,上海201900) [要]重庆钢铁设计研究总缘含工程采用了正、逆作法相结令的施工方康.首先介了读工程在施工过程 中所遇到的难点,然后详细介了施工工序和施工方法.是后将工程采用的逆行法与一般款土地基中的逆作法 进竹对比,总传了工程进作法的优点通过逆作法施工,可有地护周边建氯,创造新的材料维放场地,取得 好的社金故益和经济故基. [关键词]逆行法:地下室:清防水池 [中分类暑]TU753.6 [献标识码]A [立章编号1002-8498(2011)09-0092-03 Application of Top-down Construction Method During Construction of Some Multifunction Building Luo Hongliang Xin Jiangtao Zhao Jianli China Metallurgical Tiangong Shanghai Shisanye Construction Co.Lid.Shanghai 201900 China) Abstract:The normal and top-down construction methods are adopted during the construction of multifunction building of Chongqing Iron and Steel Design Institute (CISDI).The difficulties encountered during construction are discussed in detail.The top-down construction process is also introduced.By the parison between the mon construction method and the reverse method used in district IⅡof the CISDI project some advantages are found.By the top-down method proposed in this paper the adjacent building can be effectively protected and new material stacking site is also created.The good social and economic benefits are achieved. Key words:top-down construction method:basement:fire pool 在国内,许多敦土地区高层建筑物采用了逆作 法施工技术,并取得了好的效果.然而在地基条 北 科协大厦 进入现场大门 办公楼 件轻好的地区(如童庆),采用逆行法施工的建筑则 0 双钢路 进 比较少见.本文结合重庆铜铁设计研究总院(简称 000000600600000 1-2区 这 使造 排柱1-1区 人工 重钢院)综令工程,重点介招地下室消防水池的 已建3层 地下车库 后浇带 小区道路 地下车库 逆作法施工技术,为今后类似工程提供参考. 抗滑桩 新建高 层住宅 1工程概况 高层 重庆钢铁设计研究总胜有限...
施工技术 2014年5月上 114 CONSTRUCTION TECHNOLOGY 第43卷第9期 D0I:10.7672/5j52014090114 连锁空心方桩基坑支护技术应用研究 黄强,陈伟,颜小荣2 (1.中国建筑科学研究院,北京100013;2.云南中技管桩有限公司,云南昆明650032) [摘要]预应力空心方桩在国内主要应用于桩基工程,提出了将预应力空心方桩应用于深基坑工程的思路,围绕深 基坑工程关键的挡土和止水问题,研究了相关的解决措施,开发出了新的预应力空心方桩桩型,并和传统的钢筋混 凝土灌注桩进行了抗弯受剪承载力对比分析,丰富了深基坑工程支护桩的种类.在此基础上,针对实际工程,进行 了基坑支护空心方桩和钻孔灌注桩挡土加高压旋喷桩止水的技术经济对比,并进一步研究了基坑支护空心方桩的 生产工艺和施工工艺,将此种新桩型成功连锁成墙用于试验性基坑工程,由此产生了一种新型的基坑支护结构 体系. [关键词]桩基础;空心方桩;深基坑;生产工艺;施工工艺;试验 [中图分类号]TU473.1 [文献标识码]A [文章编号]1002-8498(2014)09-0114-06 Application Research of Chain Prestressed Spun Square Pile for Retaining Technology in Foundation Excavation Engineering Huang Qiang' Chen Wei' Yan Xiaorong? (1.China Academy of Building Research Beijing 100013;China: 2.Yunnan Zhongji Tubular Pile Co.Ltd.Kunming Yunnan 650032 China) Abstract:Prestressed square pile is widely used in pile foundation engineering in China.However a new usage of prestressed pile in deep foundation excavation engineering was introduced in this paper.The relevant resolved measurements were researched and the new type of prestressed square pile was developed based on solving the key problems of deep foundation excavation which are retaining soil and sealing water.Moreover the parison of moment and shear capacity between the new type of prestressed square pile and traditional reinforced concrete cast-in-place pile was put forward.As a result the types of retaining pile on deep foundation excavation engineering bee more abundant. Furthermore the parison of ...
[关键词】桥梁工程;转体;合龙;对中;施工技术 [中图分类号]U445.465 【文献标识码]A [文章编号]1002-8498(2016)17-0079-04 StudyonPrecision ClosurePositioninRotationConstruction of Continuous Girder onPier Top Tao Meixiang,Jiang Guohao,WuZhifei,CuiWeiliang,TongYan (No.1EngineeringCo.,Lad.ofFHECofCCCC,Beying102205,China) girder, closure position and attitude adjustment in rotation construction of continuous girder can be pleted without manually operation by position control technology of laser line throwing apparatus in construction of Mongol Camp Indian River Bridge. At the same time,the new control measures are proved to be feasible by traditional control measures in rotation construction, which ensure precision closure position by the bined use of various control measures. Key words:bridges;rotation;closure;alignment;construction 1转体合龙精确对中控制措施 1.1防止梁体超转限位装置 桥梁转体施工工艺与其他传统桥梁施工工艺1.1.1设置防超转限位装置必要性 的最大不同就在于它可以适应桥位处的地形搭设 转体前,根据称重结果计算转体牵引力,配备 支架现场浇筑或采用挂篮悬臂浇筑,然后通过球铰转体设备。
[关键词】模板;木模板;连墙圆柱;施工技术 [中图分类号】TU755.2[文献标识码】A[文章编号〕1002-8498(2013)05-0038-03 ManufactureandConstructionTechnologyofWoodFormwork for Cylinder ofRetainingWall Wang Hua',Xing Guili²,Sun Chang'an²,Long Xilin²,Zheng Zailing² (1.DeparmenofCapitalContuction,,TianjinUniersiyfSpors,Tianjin0038,Chin; 2.CSCEC City Construction Development Co.,Lud.,Beijing 100037,China) Abstract:Based on moving project of Children Palace in Mentougou District of Beijing City,the authors analyze the selection reasons of cylinder formwork of retaining wall,construction difficulties,construction process and so on,put forward the scheme of wood formwork. The authors introduce manufacture process and construction technology of wood formwork in detail.The project practice shows that wood formwork can meet the requirements of irregular formwork,economic and social benefits are obtained. Key words;formwork; wood formwork; cylinder of retaining wall; construction
1工程概况圈的框架柱都设计成圆柱。
[关键词]隧道工程;盾构;沉降;数值模拟;施工 [中图分类号]TU473[文献标识码]A[文章编号]1002-8498(2015)13-0092-05 Process Optimization of Close Overlapping Shield Tunnel During Construction Jiang Yu,Wang Shimin,Wang Ying,Guo Chen (SchoolofEngineering,University ofTibet,Lhasa,Tibet850000,China) Abstract:Based on Shenzhen Metro Line 3 project,using the numerical simulation methods to study the interaction of close overlapping shield tunnel during construction.Considered two construction process that “first upper tunnel,next lower tunnel”and “first lower tunnel,next upper tunnel” the authors focused on the extent of the influence of construction on the surface subsidence and the stress and strain of shield segment. Compared with the results of the on-site monitoring, through the parison analysis, this paper made the conclusion that using the construction sequence of “first upper tunnel,next lower tunnel",the tunnel would have the minimal influence on the surface subsidence and the circumferential stress and strain of the segment. Key words:tunnels;shields;subsidence; simulations;construction
0引言凭经验,缺乏系统的理论分析,且无分区指标的统 随着国内地铁建设量增加,由于建设过程中线一表达式,例如日本铁路和公路系统先后对近接施
况不断出现。
[关键词】地下室;结构底板;疏水板;施工技术 [中图分类号】TU753[文献标识码】A [文章编号]1002-8498(2017)01-0043-03 ConstructionTechnologyofFloorDraininBasementStructure AdjacentSeaAreas GuoHai,Zou Jiapie,Zhang Feiyue,Li Tianlong,Chen Shulong (China Construction Eighth Engineering Division Guangzhou Branch, Co.,Ltd., Guangzhou,Guangdong 510665,China) AbstractThis papermade research analysis on China MerchantsMaritime Cultural Center project garage floorhydrophobic engineering,analyzed the applicability of hydrophobic board construction technology, introduced the construction method and quality control requirements ineluding hydrophobic plate applicable characteristics,process principle,construction process,operation points,quality control and efficiency.It is proved that the construction method of the bottom plate of the underground chamber has strong applicability and high efficiency. Key words:basement;structure floor;hydrophobic plate; construction 1工程概况 深圳招商海上文化中心项目由世界著名建筑 大师桢文彦先生担纲主笔设计,这也将成为他在中 国的首个设计作品,是集美术馆、高端商业、小剧 院、画廊、滨海发布厅为一体的综合性建筑。
[关键词]混凝土;大体积混凝土;水化热;环境温度;水泥 [中图分类号】TU528 [文献标识码】A [文章编号〕1002-8498(2017)05-0091-03 EffectofHighAmbientTemperature on the CementHydration HeatPerformance Niu Likun (China Railway First Group Co.,Lid., Xi'an,Shaanxi 710054, China) Abstract:The crack generated by the temperature stress caused by cement hydration heat is an important reason of influencing the durability of structures, this paper studies the environmental temperature conditions, different ratios of cement mortar hydration heat release curve, to determine the influence of ambient temperature of the hydration heat release,and introduces the way to reduce the hydration heat in higher ambient temperature. Key words:concrete;mass concrete;hydration heat;ambient temperature;cement 随着我国交通和建筑业的快速发展,混凝土结 3)高效减水剂HT-HPC聚羧酸高效减水剂, 构的大型化及施工速度的加快,使水泥水化热引起减水率23.9%,总碱含量(Na0+0.658 的温度变化和温度应力成为结构物产生裂缝的重 K0)1.46%。
2016年8月上 施工技术 第45卷第15期 CONSTRUCTION TECHNOLOGY 13 D0I:10.7672/8js2016150013 轻钢龙骨隔墙系统在某大型游乐项目中的应用 陈瑞,路兴隆 (上海宝冶集团有限公司,上海200941) [摘要]针对某大型主题乐园明日世界32单体项目中轻钢龙骨隔柚系统,南轻钢龙骨隔墙系统深化设计、 构件加工、安装等一系列施工工艺,重点介龙骨、石膏板安装节点处理等,为后同类型施工提供参考. [关键词]铜结构;轻钢龙骨;隔墙;深化设计;施工拉术 [中图分类号]TU767[交款标识码]A[交章编号]1002-8498(2016)15-0013-04 Application of Light-steel Keel Partition Wall System in a Large Recreational Facility Chen Rui Lu Xinglong Shanghai Baoye Group Co.Ld.Shanghai 200941 China) Abstract:The construction technology of light-steel keel partition wall system is introduced mainly on a series of construction technology such as detailed design processing installation.The installation of light-steel keel and gypsum board and joint treatment are introduced.It provides some experience and reference for the same system. Key words:steel structures;light-steel keel;partition wall;detailed design;construction 轻钢龙骨隔墙系统骨架为轻钢结构,轻质镇镀铝裤合金镀层钢板及钢带》GB/T14978-2008规 充隔声减噪燃岩棉为增强材料,辅以锯末、农作范要求,金属框架构件的双面连续热漫锌涂量 物为镇充物复含而成,经特殊工艺加工制成.至少达到275g/m2. 轻钢结构主要由厚0.9~3mm、经冷弯或冷成型2施工准番 的薄壁型钢及其制品构成,具有质量轻、强度高、防2.1技术准备 水、防震、防尘、隔声、吸声、恒温等功故,同时还具 轻钢龙骨施工前,应具有完各的深化设计图, 有工期短、施工简便等优点,已广泛应用于宾馆、候应包含平面图、排版(龙骨、罩面板)立面图、节点详 机桂、客运站、车站、剧杨、商场、工厂、办公楼、旧建图(龙骨隔楼转角节点、门宿洞节点、撑杆节点、过 筑改造、室内装修、顶等场所. 梁节点、龙骨与混凝土反坎节点、与柱梁连接节点、 1工程概况 台节点)和大辉图及完整的计算书等. 明世界园区的302单体内隔墙采用轻钢龙骨2.2材料准条 石膏板隔墙体系,由金属框架、岩棉及石膏板组成. 1)轻钢龙骨包括天、地龙骨,竖龙骨,横撑龙 其中金属框架为1.5 1.9mm厚2种镀锌钢板龙骨骨,连接角钢,自玫螺钉.金属框架龙骨采用Q345B 组件,龙骨主要为粹C152×51×12.5×1.9 级钢材(键含量275g/m2) 龙骨与龙骨采用 C152×51×12.5×1.5 U156×59×1.9 U155×M4.8×16平头自攻螺钉连接,...
施工技术 2016年8月上 6 CONSTRUCTION TECHNOLOGY 第45卷第15期 D01:10.7672/8js2016150006 轻钢龙骨水泥板外墙抹灰系统施工技术 田俊年 (上海宝冶集团有限公司,上海200941) [摘委]轻钢龙骨水泥板外上铺贴聚氨酯防水卷材再进行抹灰处理施工工艺在图内为首次应用.针对某大型主 题乐园区内某单体项目轻钢龙骨水混板抹灰外墙系统施工,介绍了该外墙系统深化设计、安装工艺、抹灰工艺 施工质量控制,为今后工程提供参考. [关键词]轻钢龙骨;水泥板;防水卷材;深化设计;施工技术 [中图分类号]TU392.5[交献标识码]A[交章编号]1002-8498(2016)15-0006-07 Light-steel Keel Wall Plastering Construction Technology of Cement Board System Tian Junnian Shanghai Baoye Group Co.Lad.Shanghai 200941 China) Abstract:It is the first application of construction technology of plastering construction after paving polyurethane waterproof coiled material on light-steel keel cement board.In the project of light-steel keel exterior cement board of a large theme park the exterior system detailed design installation method plastering technology and construction quality control are introduced providing a reference for future engineering. Key words:light-steel keel;cement board;waterproof coiled material;detailed design;construction 1工程概况 一轻钢龙骨 某大型主题乐国明日世界因区303超级盒子 水泥背衬板 防水卷材 (以下简称303单体)主体结构为钢结构,外楼系统 界面增强剂,涂刷遍, 主要有金属夹芯板外墙(约1000m2)和轻钢龙骨水 6h后进行下一道工序 自攻螺钉及铁网片,铁 泥板抹灰外墙(约5000m2)2种形式.其中主要为 网片距水泥板墙面距离约8 -E料 轻钢龙骨水泥板抹灰外墙,其组成主要包括:钢材 等级为G450牌号高强度锌材料、锥锌量为275 m2的轻钢龙骨,高强度水泥板(由纯石英砂、云母、 珍珠岩、植物纤雅等多种有机和元机物质纽成), 1.0mm厚防滑聚乙烯高聚物改性汤青自粘卷材 121抗裂砂浆玻璃纤 维网布,厚度约5 YTL-VR 菱形钢丝网和多组分波特兰水泥抹灰.轻 图1轻钢龙骨水板抹灰外博系统 钢龙骨水泥板抹灰外楼系统如图1所示.图1中, Fig.I Light-steel keel cement wall system E科喷射/手上料,分2遍上料,总厚度20mm 第 1遍上料厚度约lcm 上料完成后将其压实,镇实网 分较细,要求严格,可保证每道工序的质量;②MEP等 与面的空障;然后第2遍上料,找平收光. 专...
2014年8月下 施工技术 第43卷第16期 CONSTRUCTION TECHNOLOGY 81 D0I:10.7672/5j52014160081 轻钢厂房新型墙面系统抗风性能研究* 朱思宇,杨彬,张其林 (同济大学土木工程学院,上海200092) [摘要]对一种适用于轻型钢结构厂房的新型墙面系统进行了有限元分析和试验研究.考察此系统在无外部墙面 板时风吸力作用下的承载能力及破坏形态,以及此系统在有外部墙面板时风压力作用下的承载能力及破坏形态. 结合进一步的有限元分析,对此新型墙面系统在施工和使用阶段的抗风承载力进行探讨,最终得到系统的抗风承 载力,并折算出其可承受的基本风压.并将此新型墙面系统与传统墙面系统在承载能力、使用性能等各方面进行 比较,指出此新型墙面系统有很大的应用前景. [关键词]轻钢厂房:墙面系统;风荷载:抗风性能;模拟;研究 [中图分类号]TU392 [文献标识码]A [文章编号]1002-8498(2014)16-0081-04 Research on the Wind Resistance Performance of a New-type Wall System of Light Steel Factory Building Zhu Siyu Yang Bin Zhang Qilin College of Ciril Engineering Tongji University Shanghai 200092 China) Abstract:Numerical analysis and experimental research have been done to a new-type wall system of light steel factory building the research includes the behavior of system without outer panel under wind uplift and the behavior of system with outer panel under wind pressure.We can get the behavior and capacity of the system under wind load during construction and in-service periods through the numerical and experimental research.In conclusion both the mechanical property and the thermal property of the system are well so that the prospect of the application of the system is broad. Key words:light steel factory building;walls;wind power;wind resistance performance; simulation;research 轻型钢结构具有节省用钢量、施工速度快、抗布置保温棉达到保温隔热效果,施工方便.选用 震性能好、造型轻巧美观等优点,在建筑行业特别HV-600作为带肋板,HV-200作为外部墙面板进行 是工业建筑领域被广泛使用. 研究,系统如图1所示. 传统的轻型钢结构外墙一般为压型钢板墙面 H 板和冷弯薄壁型钢墙梁,亦可采用砌体外墙,或底 部为砌体、上部为轻...
施工技术 2014年11月下 112 CONSTRUCTION TECHNOLOGY 第43卷第22期 D0I:10.7672/5js2014220112 轻质砂浆复合聚氨酯板外墙外保温系统施工技术* 孙桂芳,王永魁,罗淑湘,邱军付 (北京建筑技术发展有限贵任公司,北京100055) [摘要]硬泡聚氨酯复合板是近两年发展形成的一种新型保温板材,该板材采用薄抹灰外墙外保温系统,许多工程 应用后出现了板框可见、板缝裂缝等质量问题,轻质砂浆复合聚氨酯板外墙外保温系统能有效解决该问题.详细 介绍了系统构造、组成材料的性能、工艺流程及施工要点,并对系统技术优势进行了分析,通过工程验证表明:轻质 砂浆复合聚氨酯板外墙外保温系统是一项值得推广应用的外墙外保温技术. [关键词]建筑节能:轻质砂浆;聚氨酯板;外墙外保温系统;施工技术 [中图分类号]TU761.12 [文献标识码]A [文章编号]1002-8498(2014)22-0112-04 Construction Technology of External Thermal Insulation System Based on Lightweight Mortar Composite with Rigid Polyurethane Foam Board Sun Guifang Wang Yongkui Luo Shuxiang Qiu Junfu Beijing Building Technology Development Co.Lad.Beijing 100055 China) Abstract:Rigid polyurethane posite foam board is a new external thermal board.After application of the thin plastering external thermal insulation with rigid polyurethane foam board some buildings appear the quality problems of visible board frames and cracking gaps of rigid polyurethane foam board.The external thermal insulation system based on lightweight mortar posite with rigid polyurethane foam board can successfully solve these problems.Technical structure the performance of the posite materials construction process and key points are introduced in detail and the technical advantages in the system are analyzed.The engineering application result shows that external thermal insulation system based on lightweight mortar posite with rigid polyurethane foam board is worth popularizing and applying. Key w...
2012年4月下 施工技术 第41卷第363期 CONSTRUCTION TECHNOLOGY 73 轻井塑排加固法施工工艺现场对比试验研究 叶吉,卞金洪2,沈武杰 (1.江阴市华建筑安装工程有限公司,江苏江阴214400;2.江阴一建建设有限公司,江苏江阴214400) [摘要】软弱地基轻型井点结合塑料排水板复合加周法是将塑料排水板和轻型井点降水结合起来对软基进行加固 的方法,常用的施工工艺有先降水后强奔和先强后降水两种.结合靖江新港作业区公用码头软基加固工程,进 行两组不同施工工艺的现场对比试验.结果表明先强后降水方法施工的地表平均总沉降量要大于先降水后强 夯施工方法,前者平均固结度达96.8%,高于整个场地的平均固结度,说明采用先强后降水方祛施工地基加固效 果要优于先降水后强. [关键词】地基:加固;轻井塑排加固法:孔隙水压力;分层沉降 [中图分类号]TU753.1 [文献标识码]A【文章编号]1002-8498(2012)08-0073-04 Field Test on Construction Technology of Composite Reinforcing Method of Well Point Dewatering and Plastic Drainage Plate Ye Ji' Bian Jinhong' Shen Wujie' (1.Jiangyin Huacheng Construction and Installation Engineering Co.Lad.Jiangyin Jiangsu 214400 China: 2.Jiangyin No.I Construction Co.Lad.Jiangyin Jiangsu 214400 China) Abstract:It is a posite reinforcement method for soft foundation which bines well point dewatering and plastic drainage plate.There are two main construction technologies for the method including dewatering before dynamic paction and dynamic paction before dewatering.Based on the engineering of Xingang Public Wharf in Jinjiang two parison field tests are investigated for the two construction technologies.The results indicate that the total settlement of the latter method is larger than that of the former.The degree of consolidation of the former method is 96.8%which is higher than the average value.The observation means that the construetion technology of the latter method is better than that of the former. Key words:fou...
[关键调]T形地下连续增:槽壁预加固:抬架垂直转体法;水下混凝土 [中图分类号】TU476.3[文献标识码】A[文章编号]1002-8498(2011)10-0035-05 ConstructionTechnologyofSuper-deepT-shapedDiaphragm Wallof Container TerminalinSoftGround Zhou Hanbin (The First Engineering Company of CCCC Fourth Harbour Engineering Co. ,Lad. ,Guangzhou, Guangdong 510500, China) works in Egypl. At the conditions of high water level and deep soft soil layers, primary construction technologies and control methods for super-deep T-shaped diaphragm walls as bearing foundation are studied, including advance strengthening groove walls, guide walls construction, slurry styles and production, equipment selection and process of digging wall, lifting reinforcement cage with extermal- truss-lifting method,conerete preparation and pouring under the water,etc.These difficulties are solved by primary construction technologies and control methods finally. Key words: T-shaped diaphragm wall; pre-strengthened groove wall; extermal-truss-lifting method; underwater concrete 地下连续墙广泛应用于围护结构及基础工程,1工程概况 但对于前沿水深大、运营期间沉降要求严格、软弱地 埃及塞得东港集装箱码头二期工程地处苏伊士 层厚、持力层埋深大等特点的大型码头工程,应用很运河北端,北临地中海,码头岸线总长1200m,码头 少。