施工技术 2011年10月下 60 CONSTRUCTION TECHNOLOGY 第40卷第351期 袖阀管注浆封闭截水施工技术 霍小妹 (山西四建集团有限公司,山西太原030012) [摘要]针对太原市某住宅楼地下车库基坑工程在土方开挖中遇到涌水现象,经注浆技术比较,选用袖阀管注浆法 对土体进行固化止水.分析砂土中所注浆液的配合比和注浆压力,对注浆施工流程、机械选用、钻孔布置及钻孔、 浆液配制、下管和注浆施工等问题进行详细介绍,对注浆过程注意事项进行探讨.经加固的土体能满足施工要求. [关键词]地基;袖阀管;注浆;固化;施工技术 [中图分类号]TU753.3 [文献标识码]A[文章编号]1002-8498(2011)20-0060-02 Construction Technology of Water Truncation with Sleeve Valve Pipe Huo Xiaomei (China Shanxi Sijian Group Co. Ltd.Taiyuan Shanxi 030012 China) Abstract:Water gushes occurred during the foundation excavation construction of underground garage service building of some residential building in Taiyuan.After paring different grouting technologies grouting with sleeve valve pipe is selected to solidify the ground.Mix proportion and grouting pressure of slurry are analyzed.Problems during construction are introduced in detail such as construction process equipments selection holes arrangement and forming slurry making and grouting.Points for attention are discussed.By the reinforcement measures the soil properties can reach construction requirements and the water gushing is controlled. Key words:foundations;sleeve valve pipe;grouting;solidification;construction 1工程概况 2)袖阀管注浆基坑封闭截水技术是利用袖阀 新建南路家属院1号住宅楼地下车库工程位于管进行定深、定量、分序、分段、间歇、重复注浆的特 太原市迎泽大街警备区院内,长89.93m 宽40.6m 点,集中了劈裂注浆法、压(挤)密注浆法与渗入注 车库基底面积2594m2 地下车库基底为-10.50m 浆法的优点,达到封闭截水的目的. 基坑支护形式为帷幕桩、冠梁、喷错,基础形状为多 3施工工艺原理 边形,该工程场地西、北侧紧临原有建筑物,场地狭 通过对土体不同岩性地层由下往上进行注浆, 小.车库基坑止水帷幕、工程桩施工完毕,土方开挖 来达到加固土体的方法.施工过程中通过上下两个 时出现竖向突涌现...
施工技术 2014年2月上 62 CONSTRUCTION TECHNOLOGY 第43卷第3期 D0I:10.7672/sgjs2014030062 虚拟建造在工程项目施工阶段中的 应用及其4D/5DL0D研究* 刘琰,李世蓉 (重庆大学建设管理与房地产学院,重庆400045) [摘要]工程项目建设过程具有非严格线性,同时又处于周期性和知识积累的循环机制等特性.信息、通信与 技术(ICT)的不断发展正支持建筑行业的流程改造.大型复杂和多专业交叉的工程项目可以通过应用结合虚拟建 造功能的BM技术大大提高其包括进度和成本方面的效益.将虚拟建造概念作为一项项目管理团队与施工现场 的有效沟通工具施工阶段,从L0D(多细节层次)的角度分析了当前虚拟建造的发展现状和未来趋势,以及4D/5D 的LOD应用.针对工程项目施工阶段的实际需求,本研究搭建的虚拟建造模型以WBS为核心,将三维模型、工程 成进度信息、工程成本信息有机地关联起来,来进行人工材料、机械与模型的关联,通过对4D/5D的定义,集成有 效地实现了施工阶段的项目管理.最后以成都金融城工程项目为例进行了虚拟建造案例分析. [关键词]建筑信息模型;虚拟建造;施工;材料;机械 [中图分类号]TU17 [文献标识码]A [文章编号]1002-8498(2014)03-0062-05 Research on Virtual Construction in Construction Phase and Its 4D/5D LOD Analysis Liu Yan Li Shirong (School of Construction Management and Real Estate Chongging University Chongging 400045 China) Abstract:A building process is not a strictly linear one but a primarily cyclical one with cycle-to-cycle feedback and knowledge accumulation.The development of information and munication technologies (ICT)has supported this work process.Complex and multi-disciplinary projects can be greatly improved by the adoption of BIM bined with simulation capabilities-virtual construction.This article relates to the introduction of virtual construction in construction phase as the munication tool between stakeholders and construction site.Then it analyzes the current status of the virtual construction-the LOD (levels of detail)of the 3D model may be different from the LOD of the schedule.The author establishes a linking process based on the respective LOD of 3D model and schedule so that the linking of the two ponents together can create the 4D/5D model which automatically gives a very clear idea and overview of the construction in various stages.At last it takes Chengdu Financial City as an example to present the adoption of virtual construction in construction phase. Key words:building information modeling BIM )virtual construction;construction; materials;machinery 建设信息模型(building information modeling 简形成一股热...
2014年7月下 施工技术 第43卷第14期 CONSTRUCTION TECHNOLOGY 165 D0I:10.7672/8gis2014140165 萧山国际机场二期航站楼桁架制作拼装技术 周烽,周莉燕,刘贵旺,周观根 (浙江东南网架股份有限公司,浙江杭州311209) [摘要]杭州萧山国际机场二期项目一阶段国际航站楼屋盖钢结构为桁架结构,从工程结构分析,钢构件加工制作 类型包括:屋盖主桁架(桁架上、下弦杆为焊接型曲梁)、次桁架、支座节点、斜撑(各类钢管)等.重点介绍了大跨 度钢桁架的三维数字化建模、数控下料、六维钢管相贯面切割、制作的特点、难点,及其关键控制技术等.同时指出 桁架拼装方法、工厂预拼装方式以及质量控制措施.不仅提高了主次桁架尺寸的准确性,还保证了工期. [关键词]钢结构;桁架;制作;拼装;胎架 [中图分类号]TU758.16 [文献标识码]A[文章编号]1002-8498(2014)14-0165-03 Truss Processing and Assembly Technology of Xiaoshan International Airport Terminal Phase II Zhou Feng Zhou Liyan Liu Guiwang Zhou Guan'gen (Zhejiang Southeast Space Frame Co.Lid.Hangzhou Zhejiang 311209 China Abstract:The roof of Xiaoshan International Airport Terminal Phase II is truss structure the steel ponents processing includes the main truss whose upper and lower chords are welded curved beam the secondary truss support joints diagonal brace and so on.Combined with the practice of the steel structure the authors mainly introduce the characteristics of 3D digital modeling numerical control blanking six-dimensional tubular surface cutting and production in the large-span truss structure what' s more the difficulties and the key control technology of factors mentioned above are also emphasized. The technologies not only improved the accuracy of the main and secondary trusses but assured the construction period. Key words:steel structures;trusses;processing;assembly;jig 1工程概况 杭州萧山机场二期扩建国际航站楼项目,总体 建筑面积约9.1万m2 建筑层数为3层,地下1层 为地下室,建筑面积约3.1万m2 侧面为新建高架 桥,建筑面积约1万m2 建筑物高度为26.95m 如 图1所示.杭州萧山机场二期国际航站楼钢结构工 程由出发大厅、国际候机楼两部分组成(见图2),其 图1萧山国际机场航站楼效果 中出发大厅屋盖钢结构部分由6榀主桁架和之间的 Fig.1 The effect of Xiaoshan 次桁架组成,主桁架质量约200/,跨度约96m 纵 International Airport Terminal 向间隔分24m和36m 安装高度24m.整个屋盖钢 架、支座节点、斜撑(各类钢管)等.由于主桁架弦 结构用钢量约3600t. 杆为焊接箱形曲梁系等截面构件,加工采取在箱形 2钢结构构件加工制作技术 构件自动生产线上进行,以确保构件制作精度满足 从工程结构分析,钢构件加工制作类型包括: 设计要求.钢管构件端部相贯面切割采取多维数 屋盖主桁架(桁架上、下弦杆为焊接型曲梁)、次桁 控相贯面切割机切割,下料切割、坡口一次成型,以 [作者简介]周烽,工程师,E-mail:zfgxe@163.c0m 确保工程桁架钢管切割精度.工程节点采用铰接 [收稿日期]2013-11-28 连接和焊接连接两种.工程屋面桁架包括屋面主 万方敷据 ...
施工技术 2014年5月下 18 CONSTRUCTION TECHNOLOGY 第43卷第10期 D0I:10.7672/sgj2014100018 英国既有建筑绿色改造主要政策制度介绍 及与我国的对比分析* 叶凌1 2,王清勤12,程志军1 2 (1.中国建筑科学研究院,北京100013;2.绿色建筑北京市国际科技合作基地,北京100013) 【摘要]从背景情况、执行实施、技术支持等角度介绍了英国在既有建筑绿色改造方面的政策制度,主要包括能效 标识、绿色方案和能源公司责任,并将其与我国情况进行了对比分析,作为我国相关工作的参考. [关键词]既有建筑;绿色改造;政策制度;英国 [中图分类号]TU201.5 [文献标识码]A [文章编号]1002-8498(2014)10-0018-05 Policy Investigation on Existing Building Greening Retrofit in UK and Comparing Analysis with China Ye Ling.2 Wang Qingqin.2 Cheng Zhijun.2 (1.China Academy of Building Research Beijing 100013 China;2.Beijing International Collaboration Base on Green Building Beijing 100013 China) Abstract:Policies on existing building greening retrofit in UK such as Energy Performance Certificate Green Deal Energy Company Obligation are introduced in terms of background implementation and technical support.Situations in UK and China are pared and analyzed for the reference of relative work in China. Key words:existing building;green retrofit;policy system;UK 在英国,针对既有建筑的“绿色改造(green 欧盟于2002年发布《建筑能效指令》[1,要求 retrofit)”一词已广为人知,在著名的“维基百科”网建筑物的建造、销售、租赁等行为都需要具有建筑 站上也能搜到该词条.相比而言,我国的既有建筑 能效标识(energy performance certificate EPC) 从 绿色改造尚处于起步阶段.在国家科技支撑计划 而实现建筑能效公开透明化.而对于既有建筑,还 的支持下,笔者对英国此方面的主要政策制度进行 明确规定各成员国应采取必要措施确保使用面积 了调研,并将其与我国情况进行了对比分析,以供 超过1000m2的既有建筑进行改造后的能效满足最 国内相关工作参考借鉴. 低要求(具体的要求由各国自定).据此,英国修订 1能效标识(energy performance certificate) 了《建筑法规》(The Building Regulations2000)及其 能效标识是附在产品或产品包装物上的一种 核准文件(Approved Document Part L:Conservation 信息标签,用来表示用能产品的能源性能,通常以 of fuel and power) 并专门制定了《建筑能效法规 能耗量、能源效率和/或能源成本的形式给出,以便 (标识和检验)》(The Energy Performance of 向消费者提供必要的信息,属于产品符合性标志的 Buildings Certificates and Inspections)(England and 范畴.建筑能效标识是指将反映建筑物用能系统Wales)Regulations2007).此后,欧盟于2010年对 效率或能源消耗量等热性能指标以信息标识的形 该指令进行了修订2,明确要求各成员国对既有建 式进行明示. 筑改造中采用分布式可再生能源系统、联产系统、 1.1背景情况 基于可再生能源的区域能源系统、热泵,以及智能 计量系统、智能监控系统等高效节能技术的行为予 “十二五”国家科技支撑计划项目:既有建筑绿色化改造综合检测以鼓励. 评定技术与推广机制研究(2012BAJ06B01) [作者简介]叶凌,副研究员,博士,E-mal:lingye-havc@163. 根据英国《能源法》(Energy Act2011)和《欧洲 [收稿日期]2...
2012年12月上 施工技术 第41卷第378期 CONSTRUCTION TECHNOLOGY 109 自由伸缩手臂多功能型钢台车拆除 高大核心土施工技术 张旭 (中国建筑第五工程局有限公司,湖南长沙410004) [摘要]大断面暗挖地铁车站普遍采用双侧壁导坑法施工,在完成双侧壁开挖后,中间留下了高大核心土,要进行 下一道工序二衬的施工,则必须先拆除高大核心土,将拱顶初支闭合,保证初期支护整体结构稳定,避免出现拱顶 塌方、沉降等安全事故.结合重庆市轨道交通6号线小什字车站工程,介绍了在采用双侧壁导坑法完成双侧壁开 挖后,运用自由伸缩手臂多功能型钢台车拆除18m高、6m宽高大核心土的施工情况,探讨了特大断面暗挖隧道安 全拆除高大核心土施工技术. [关键词]地铁工程;型钢台车;核心土;施工技术 [中图分类号]TU921;U459.2 【文献标识码]A【文章编号]1002-8498(2012)23-0109-05 Construction Technology of the Tall Core Soil Dismantled by Multi-functional Steel Trolley with Free Expansion Arms Zhang Xu China Construction Fifth Engineering Division Co.Ltd.Changsha Hu'nan 410004 China) Abstract:Both side heading method is used in large section subway station construction with subsurface excavation.There is a tall core soil left after the excavation of double walls.Before undertaking the construction process of the second line the tall core soil must be dismantled and the primary support must be closed to ensure primary support stable and to avoid the vault sinking.Combined with Xiaoshizi station construction for the urban light-rail line 6 in Chongqing.Excavating the core soil with eighteen meters high and six meters wide by free expansion arm multi-function steel trolley using both side heading method to excavate the double walls the author introduces the construction technology of the tall core soil dismantled safely. Key words:subways;steel trolleys;core soil;construction 据调查,目前国内在建的特大断面隧道断面面仰拱混凝土浇筑→核心土开挖→拱部初期支护→ 积普遍在200~300m2 在运用双侧壁导坑法完成大断面二衬施工.这样留下了后期处理高大核心 左、右上导坑开挖后,就进行拱部核心土的开挖,这土的诸多困难和安全风险. 样的施工工序避免了后期开挖高大核心土的诸多1地质状况 困难.重庆轨道交通6号线小什字地铁车站最大断 场地出露地层自上而下分别为第四系全新统 面面积在400m2以上,属于城市建筑密集区的浅埋人工填土、河流冲积层,下伏基岩为休罗系中统沙 特大断面隧道,国内尚无成熟的施工技术.为控制 溪庙组砂岩和砂质泥岩. 安全风险,小什字地铁车站不能按常规的完成左、2工程概况 右上导坑开挖后,就开挖拱部核心土的施工工序. 重庆轨道交通6号线小什字地铁车站属于特大 实际施工工序为:两侧上导坑开挖初支→两侧中导 断面隧道,车站全长257m 车站断面变化频繁,最大 坑开挖初支→两侧下导坑开挖初支→仰拱开挖→ 断面跨度26m 高19m 断面面积430m2.全部采用 双侧壁导坑法开挖,左、右导坑开挖完成后,中间留 [收稿日期]201208-16 [作者简介]张想,助理工程师,富源南路一标项目技术质量部经 下了长257m 高15~18m 宽6m的高大核心土.车 理,E-mail:365437218q9.c0m 站围岩覆盖...
施工技术 2013年7月下 58 CONSTRUCTION TECHNOLOGY 第42卷第14期 D0I:10.7672/8gjs2013140058 自爬式液压顶升装置设计及结构稳定性分析 陈杰,张文锋 (上海同力建设机器人有限公司,上海200433) [摘要]大型电机的吊装难点是移动平稳、制动准确、安装精度高、被吊构件超重、施工空间狭小等.为此,需要设 计自爬式液压顶升装置,以满足施工安全性和成本控制的要求.此装置在设计上的难度主要是要满足复杂的施工 使用工况、液压同步技术和装置系统的整体稳定性设计.根据顶升安装工程施工的实际情况,研究确定支架结构 可能存在的初始几何缺陷,简化并建立合理的顶升支架结构数值计算模型,分析顶升支架结构的极限承载能力. [关键词]顶升支架;自爬式;提升;稳定性 [中图分类号]TU69 [文献标识码]A[文章编号]1002-8498(2013)14-0058-04 Design of Self-climbing Hydraulic Jacking Device and Analysis of the Structural Stability Chen Jie Zhang Wenfeng Shanghai Tongli Construction Robot Co.Lad.Shanghai 200433 China) Abstract:Moving smoothly accurate braking high installation accuracy hanging member overweight construction of small space are the difficulties in lift-up of the large motor.Therefore it is necessary to design the self-climbing type hydraulic jacking device to meet the construction safety and cost control requirements.The device in the design of the difficulty is mainly to meet the whole stability design of the plex construction condition hydraulic synchronous technology and device system.According to the actual conditions of the jacking installation engineering this article researched and decided the initial geometry imperfections that the frame structure possibility existed simplified and built a reasonable numerical model of the jacking frame structure analyzed the performance of the jacking frame structure in different load. Key words:lift-up frame;self-climbing;lifting:stability 1设备简介 定子 一般大型电机(质...
施工技术 2013年8月下 90 CONSTRUCTION TECHNOLOGY 第42卷第16期 D0I:10.7672/sgjs2013160090 自洁型铝质金属复合屋面施工技术 李妙平 (山西四建集团有限公司,山西太原030012) [摘要]自洁型铝质金属复合屋面具有质量轻、耐久性好、美观和环保等特点,可广泛应用于大型公共建筑中.结 合该技术在实际工程中的应用,通过优化金属屋面构造,在满足使用功能的同时确保了建筑屋面外观完整及装饰 效果,并在施工中对蜂窝铝板加工工艺和施工构造进行改进,使其具有自洁特性,大大降低了建筑屋面后期维护费 用,并取得良好的保温隔热、隔声降噪的效果. [关键调]屋面工程;金属屋面;防水;保温 [中图分类号]TU761 [文献标识码]A[文章编号]1002-8498(2013)16-0090-03 Construction of Self-clean Aluminum Metal Compound Roof Li Miaoping (China Shanxi Sijian Group Co.Ltd.Taiyuan Shanxi 030012 China) Abstract:Self-clean aluminum metal pound roof has the characteristics of light weight good durability and green and be widely used in large public buildings.Combined with application of self- clean aluminum metal pound roof technology the using function outlook and decoration effects are ensured by optimization of roof structure and the processing and construction of aluminum honeyb panel are improved and the metal roof has the self-clean function the maintenance cost is reduced the good effect of insulation sound insulation and noises reduction are obtained. Key words:roofs;metal roof;waterproofing;insulation 0引言 诸多缺陷,已很难适应目前市场发展的需求,虽然 随着建筑业不断发展,大型公共建筑数量不断 铝质金属板材在建筑中的应用对建筑业的发展具 增多,建筑设计理念不断更新,传统的金属屋面受 有积极的推动作用,但就目前市场来看,铝质材料 到材料、工艺的限制,存在锈蚀、渗漏、污染严重等 在深度、广度开发方面及成套施工技术总结方面还 急待完善和提高.目前铝镁锰直立锁边板屋面系 【作者简介]李妙平,主任工程师,高级工程师,E-mail:490429724@ qq. 统施工技术已趋于成熟,但是由于其自身为瓦楞形 [收稿日期]2013-03-15 截面,平整度、观感不佳,而在直立锁边板上进行蜂 参考文献: [7 Tao Jin Yuan Yong Taerwe Lue.Compressive strength of self- [1]张泽平,玻化微珠保温混凝土及其结构的基本性能试验与理 pacting conerete during high-temperature exposure【J]. 论分析研究[D].太原:太原理工大学,2009. Journal of Materials in Civil Engineering 2010 10(22): [2]张泽平,樊丽军,李珠,等.玻化微珠保温混凝土初探].混 1005-1011. 凝土,2007(11):4648. 【8]程文,颜德,王铁成,等.混凝土结构(上册)混凝土结构 [3]贾福萍,吕恒林,崔艳莉,等,不同冷却方式对高温后混凝土 设计原理[M].北京:中国建筑工业出版社,2008. 性能退化研究[].中国矿业大学学报,2009 38(1):25-29. [9]李友群,李丽娟,苏健波.玻化微珠对高强混凝土高温性能影 [4]梁爱莉,张倩茜,袁广林,等.混凝土高温后抗压强度的影响 响研究[J].混凝土,2009(4):51-53. 因素研究(].煤炭学报,2010 12(35):2049-2052. [10]Felicetti R Gambarova P G.Effec...
2015年3月下 施工技术 第44卷第6期 CONSTRUCTION TECHNOLOGY 117 D0l:10.7672/8gis2015060117 自振式自动洗车池施工技术 孔德泉,姚志超,阙圣宁 (中建一局集团第六建筑有限公司,河北石家庄050000) [摘要】昆山花桥富隆花园项目通过技术创新,利用AutoCAD软件三维模型模拟洗车过程,最终成功设计出自报式 自动洗车池,不仅得到了社会各级领导、专家及同行的认可,而且于2014年2月26日通过国家专利局授权,获得国 家实用新型专利证书.工程实践表明,该洗车池既经济、实用、节能、高效,又将“绿色施工”创新理念落到实处,具 有很好的市场前景. [关键词]混凝土;绿色施工;三维模拟;节能;环保 [中图分类号]TU7 [文献标识码]A [文章编号]1002-8498(2015)06-0117-03 Construction of Self-oscillating Automatic Washing Pool Kong Dequan Yao Zhichao Que Shengning The Sixth Company of Construction First Group Lad.Shijiazhuang.Hebei 050000 China) Abstract:Through technical innovation in the project of Kunshan Huaqiao Fulong garden three- dimensional model is used to simulate the washing process with AutoCAD software.The ultimate success of the design of self-oscillating automatic washing pool is not only offers all levels of society leaders experts and peer recognition but also authorized by national patent offices.It is awarded the national utility model patent certificate in February 26th 2014.Engineering practice shows that the washing pool is economical practical energy efficient and it is a green construction it has a good market prospect. Key words:concrete;green construction;3D simulation;energy saving;environmental protection 1工程概况 系统(下沉式自振水池)、二级高压喷淋冲洗系统 昆山花桥富隆花园项目位于江苏省昆山市花 (二次自动清洗池、高压喷淋冲洗管路)、污水回收 桥经济开发区,距离刚开通的上海地铁11号线花桥 再利用系统(污水收集池及沉淀系统). 站约2km.该一期住宅占地面积23316m2 总建筑 当运输车辆经过下沉式自振水池时,水池底均 面积87621m2 其中地上11~32层建筑面积为 匀布置的钢管使其经过的车辆产生振动,使附着不 63532m2 地下室(车库地下1层、主楼地下2层)建 牢...
施工技术 2014年5月下 106 CONSTRUCTION TECHNOLOGY 第43卷第10期 D0I:10.7672/agjs2014100106 自动化生产技术在箱梁预制场中的应用* 叶锡钧12,安关峰12,洪汉江1,周朝阳2 (1.广州市市政集团有限公司,广东广州510060;2.中南大学土木工程学院,湖南长沙410004) [摘要]依托广乐高速30合同段项目,对箱梁预制场的自动化生产技术进行研究.对预制梁每个工序进行分解, 每道工序均采用先进的施工工艺,集约成自动化的生产过程,包括钢筋半成品加工、钢筋加工胎架、液压不锈钢模 板、自动化喷淋养护、智能化张拉等5个方面.通过本项目的研究,提高预制梁施工质量及效率. [关键词]桥梁工程;箱梁;预制场;自动化 [中图分类号]TU71;TU74 [文献标识码]A[文章编号]1002-8498(2014)10-0106-03 Application of Automatic Product Technique in Box Girder Casting Yard Ye Xijun1.2 An Guanfeng2 Hong Hanjiang' Zhou Chaoyang㎡ (1.Guangzhou Municipal Group Co.Lad.Guangzhou Guangdong 510060 China; 2.School of Civil Engineering Central South University Changsha Hu'nan 410004 China) Abstract:Relying on Guangle highway projects T30 section plan construction and automatic product technique for box girder casting yard were investigated.According to schedule requirements and site conditions staging casting yard was pre-partition constructed;each production process of precast box girder used advanced construction technology including steel semi-finished products steel processing tire rack hydraulic stainless steel template automatic sprinkler conservation intelligent tensioning making the whole production processes automatic.Automatic product technique can improve construction quality and efficiency of precast beams. Key words:bridges;box girder;casting yard;automation. 预制梁生产是大型桥梁工程施工过程中的一1工程概况 个必不可少的环节,其质量与生产进度直接影响整 广乐高速T30合同段位于广州市花都区花山 个工程质量与进度11.-一般情况下,预制梁预制过镇,合同造价为5.13亿,工程内容主要为广乐高速 程中,每道工序均采用人...
2011年11月下 施工技术 第40卷第353期 CONSTRUCTION TECHNOLOGY 41 自制墙体钢木结合大模板的设计与应用 石元,王静2 (1.中国新兴建设开发总公司三公司,北京100039;2.华北水利水电学院土木与交通学院,河南郑州450011) [摘要]结合新疆石油管理局生产调度指挥中心工程具体情况及当地施工特点,剪力墙模板施工采用现场自制钢 木结合大模板.针对工程施工难点,介绍了型钢龙骨加工方法、对拉大螺栓加工关键技术以及阴、阳角模板加工要 点,并对大模板拼接处及阳角处加固提出合理有效的技术措施.结果表明,剪力墙基本达到清水混凝土的外观效 果,取得了良好的经济效益和社会效益. [关键词]混凝土;模板;型钢龙骨;竹胶板;模板加固 [中图分类号]TU755.2 [文献标识码]A [文章编号]1002-8498(2011)22-0041-03 Design and Application of Self-made Big Wall Formwork with the Steel and Wooden Components Shi Yuan' Wang Jing2 (1.The Third Branch of China Xinxing Construction Development General Co.Beijing 100039 China; 2.Civil and Traffic College of North China University of Water Resources and Electric Power Zhengzhou He'nan 450011 China) Abstract:Based on the conditions and construction characteristics of Production Scheduling Control Center of Xinjiang Petroleum Administrative Bureau the self-made big wall formwork with the steel and wooden ponents is adopted in shear wall construction.In view of the construction difficulties the processing method of steel keel key technology of big tensional bolts and processing difficulties of positive formwork are introduced.The reasonable and effective measures for formwork strengthening at splice and positive corner are put forward.The result shows that the effect of fair-faced concrete is achieved basically and good economic benefit and social benefit are obtained. Key words:concrete;formwork;steel keel;bamboo plywood;formwork reinforcement 1工程概况 2工程重点及难点 新疆石油管理局...
2011年8月下 施工技术 第40卷第347期 CONSTRUCTION TECHNOLOCY 95 组织措施在国际工程质量风险控制中的地位及作用 黄静,韩严漪 (中国葛洲集团股份有限公司,湖北宜昌443002) [摘要]采用举例方法分析了国企走向国际市场面临质量风险的两个来源是两类合规性偏差.提出预防措施中组 织措施是质量风险控制的最重要措施,是其他措施的前提和基础.通过中西对比明确了领导作用是组织措施发挥 作用的保障.采用正反例证论述了组织措施的职能定位、激励人的能力的发挥和人的质量意识的转变、保障组织 中管理成员能力的科学搭配等功能对预防质量风险具有重要作用.最终研究结论是组织措施是中国国企走向国 际市场、预防质量风险损失的必要手段. 【关键词]工程管理;质量控制;组织措施;地位;作用 [中图分类号]TU721.2 [文献标识码]A [文章编号]1002-8498(2011)16-0095-03 Position and Effects of Organizational Measures in Quality Risk Control for the Oversea Project Huang Jing Han Yanyi (China Gezhouba Group Co.Lad.Yichang Hubei 443002 China) Abstract:Two quality risk sources for Chinese state corporations in oversea market are analyzed by illustrating examples.It is pointed out that organizational measure is the most important measure for quality risk control and it is the precondition and foundation for other measures.Leaders affection is the guarantee for organization by paring the Chinese and the western conditions.Based on positive and negative examples it proves that organizational measure has important functions for preventing the quality risk in duty defining of organise exciting personnel energy exerting and quality recognizant changing as well as scientific arrangement of the management capacity of the ensuring organization.The result shows that the organizational measure is the necessary measure for Chinese state corporations to prevent quality lost in overseas market. Key words:project management;quality control;organizational me...
2017年6月上 施工技术 第46卷第11期 CONSTRUCTION TECHNOLOGY 61 D0I:10.7672/5j52017110061 线性和旋转切割方式滚刀破岩试验对比研究* 龚秋明,董贵良,殷丽君,马帅,卢建炜 (北京工业大学城市防灾与减灾教育部重点实验室,北京100124) [摘要]隧道掘进机(TBM)的施工中破岩效率直接影响了工程的进度、造价.室内试验可以较真实地模拟滚刀破岩 的过程,优化TBM设计参数.由于试验设备的限制,此前室内试验均为线性切割,与实际施工的旋转滚刀旋转破岩有 一定差异.基于北京工业大学自主研制的机械破岩试验平台,采用19in(483mm)常截面盘形滚刀,以80mm刀间距、 0.5mm贯人度为间隔,分别对某引水工程花岗岩进行线性切割和旋转切割破岩试验.对比分析了两种切割方式对滚 刀力、比能的影响,发现两种切割方式下法向力、滚动力和比能变化趋势大体相同,只有侧向力存在明显差异. [关键词]隧道工程:贯入度:切割方式:滚刀力 [中图分类号]U455.3*1 [文献标识码]A [文章编号]1002-8498(2017)11-0061-06 Comparison Study on the Rock Linear and Rotating Cutting Test by TBM Cutter GONG Qiuming DONG Guiliang YIN Lijun MA Shuai LU Jianwei Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education Beijing Unirersity of Technology Beijing 100124 China) Abstract:In the tunnel construction by tunnel boring machine (TBM) the excavation efficiency directly influenees the schedule and cost of the construction.Full scale laboratory experiment can almost reflect the rock breaking process really.Due to the limitation of experimental equipment the previous laboratory experiment study only focuses on the linear cutting test which have some difference with the rotating cut in actual construction.The mechanical rock fragmentation experimental platform of Beijing University of Technology was used to explore the difference between rotating and linear cut.In these tests the diameter of the disc cutter with a constant cross section (CCS)is 19 inches.The cutter spacing was set up to 80mm...
2016年7月上 施工技术 第45卷第13期 CONSTRUCTION TECHNOLOGY 135 D0I:10.7672/5js2016130135 纤维织物风管安装要点与效益分析 张丽平 (中铁建设集团有限公司,北京100040) [摘要]通过纤维织物风管技术在某工程中的应用,闸述了其作为一种新型风管材料的优越性,详细介绍了纤维织 物风管的施工控制要点并进行了效益分析.纤维织物风管系统的应用大大缩短了施工工期,节约了材料用量,提 高了室内空气的洁净度. [关键词]通风管道:纤维织物风管;安装;施工技术 [中图分类号]TU834.4 [文献标识码]A [文章编号]1002-8498(2016)13-0135-03 Installation Points and Benefit Analysis of Fiber Fabric Duct Zhang Liping China Railway Construction Group Co.Ltd.Beijing 100040 China) Abstract:According to the application of fiber fabric duct in a project this paper proposed its advantages introduced the construction control points and analyzed its benefits.This system reduced construction period and material improved cleanliness indoor. Key words:ventilating duct;fiber fabric duct:installation;construction 0引言 环境搭配,多种形状可与建筑物融合,外表整洁大 纤维织物风管又称索斯风管、布袋风管等,是方,色彩多样活泼,美观高档. 由特殊纤维制成的,能均匀送风的柔性空气分布系 2.2均匀舒适 统(见图1).随着纤维织物风管系统工艺技术的不 纤维织物风管系统通过整个管壁的纤维缝隙或 断提高,经济、节能、环保型纤维织物风管正逐步向 均匀分布、经过设计的多排小孔出风,共同构成立体 其他领域迈进,使其能适用于更多场合. 面送风,且整体送风均匀、射程精确,如图2所示.通 过设计可实现理想的岗位送风和岗位线送风. 室外 风机 布袋风管 吊顶 调节阀 图1纤维织物风管系统原理 Fig.1 Fabric duct system principle 1工程概况 图2纤维织物风管送风效果 本工程位于北京市昌平区,总建筑面积 Fig.2 The effect of fabric duct system 20310m2 其中实验室建筑面积约为10000m2 实验 2.3防凝露 室内采用纤维织物风管送风系统,极大地缩短了本工 纤维织物风管通过整体管道壁纤维渗透冷气, 程通风管道安装施工周期,提高了纤维织物风管安装 在管壁外形成冷气层,使管壁内外几乎无温差,彻 效率及质量,增强了建筑内部整体协调性与美观性. 2纤维织物风管的优越性能 底解决风管凝露问题,不需要管道保温. 2.4安装便捷 2.1美观高档 纤维织物风管系统安装简单快捷、工期短,只 纤维织物风管系统布局整齐、结构简单,可与 有传统送风系统周期的1/10左右,可以适应各种复 [作者简介]张丽平,高级工程师,E-mal:zhangliping@zjs.cn 杂的安装环境,方便拆卸和重复利用. [...
[关键词]加固;竹板;木材;黏结性能;破坏模式 [中图分类号]TU366.2[文献标识码]A[文章编号】1002-8498(2013)16-0001-04 ExperimentalResearchonBondBehaviorofGlued BambooPlateandWood Li Xiangmin,Xu Qingfeng,Zhang Fuwen (ShanghaiKey Laboratory ofNew Technology forEngineering Structures,SRIBS,Shanghai200032,China) Abstract:Tensile shear tests of 10 specimens were conducted to study the bond behavior between bamboo plate and wood.The test parameters included the type of bamboo plate, the bond length and width of bamboo plate and wood.Failure modes,strain development and distribution of bamboo plate,the characteristics of stress distribution in the bonded interface and local bond stress-slip curves with different failure modes were obtained in the tests.The test parameters affected the bond behavior between bamboo plate and wood was analyzed.Test results could be useful for related numerical simulation and engineering practice. Key words:strengthening;bamboo plate;wood;bond behavior;failure mode 0引言采用竹材对既有建筑进行维修加固符合绿色化改 既有建筑绿色化改造已成为国民经济发展的造目标。
施工技术 2016年10月下 106 CONSTRUCTION TECHNOLOGY 第45卷第20期 D01:10.7672/sgjs2016200106 移动模架超宽鱼腹型现浇箱梁线形控制研究 罗桂军,谢晖2,肖洪波1,彭云涌,谈超 (1.中建五局土木工程有限公司,湖南长沙410004;2.湖南大学土木学院,湖南长沙410012) [摘要]移动模架现浇施工是一种先进的施工工法,具有不受施工环境限制、施工成本低、机械化程度高、施工工期 稳定等优点.但现浇箱梁施工中移动模架主梁变形通常较大,合理设置预拱度及减少新旧混凝土结合面错台是亟 待解决的问题.以武四湖大桥超宽鱼腹型箱梁移动模架现浇施工为背景,对移动模架进行有限元数值分析以及理 论计算,提出弹性变形修正计算公式以及错台控制过程中后浇段长度的计算方法.此外,针对桥梁宽度较大、空间 效应明显的特点,对包括纵桥向和横桥向线形控制在内的空间线形控制技术进行研究,确保线形控制成功实施. [关键词]移动模架;弹性变形;修正;预拱度;错台;线形;控制 [中图分类号]U445.463 [文献标识码]A [文章编号]1002-8498(2016)20-0106-06 Study on Alignment Control of Ultra Wide Fish Bellied Type Cast-in-situ Box Girder of Movable Scaffold Luo Guijun' Xie Hui Xiao Hongbo' Peng Yunyong' Tan Chao' (1.CCFEB Civil Engineering Co.Ld.Changsha Hu'nan 410004 China; 2.Civil Engineering College Hu'nan University Changsha Hu'nan 410012 China) Abstract:Movable scaffold system construction is an advanced construction method.It has advantages of non-limitation of construction environment low construction cost high level of mechanization and stable construction period etc.But the deformation for main girder of movable scaffold system is generally large when pouring concrete.So how to set camber and reduce new and old concrete bined surface split- level is a problem demanded to be solved.Based on ultrawide fish-bellied box girder with movable scaffold system cast-in-situ construction for Wusi Laker Bridge the finite element analysis and theoretical calculation for movable scaffold system are conducted and the elastic defor...
2017年1月下 施工技术 第46卷第2期 CONSTRUCTION TECHNOLOGY 27 D0I:10.7672/sgjs2017020027 移动式钢桁架操作平台在屋面吊顶板安装中的应用 桂佳,胡伟伟,孙海,任志强,吴培 (中建三局集团有限公司,湖北武汉430064) [摘要]提出了一种在已安装吊车梁的跨间设置可移动支撑桁架,并在支撑桁架上搭设钢管脚手架及操作平台作 为屋面吊顶板安装的装置,介绍了该装置的主要结构特点、作业方式、使用注意事项.该装置通过MIDAS/Gen及 品茗等软件验算了其可靠性,并分析了其社会效益及经济效益,适用于大跨度、超长、带吊车梁厂房的围护工程屋 面吊顶板施工. [关键词]安装工程;围护工程;桁架;操作平台;屋面;吊篮 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2017)02-0027-04 Application of Movable Steel Truss Operating Platform in the Installation of Suspended Ceiling Boards Gui Jia Hu Weiwei Sun Hai Ren Zhiqiang Wu Pei China Construction Third Engineering Bureau Co.Ltd.Wuhan Hubei 430064 China) Abstract:A movable supporting truss is put forward in the span of a crane beam and a steel pipe scaffold and an operating platform are arranged on the supporting truss to be used as a device for the installation of the roof ceiling board.The main structure features the operation mode and the precautions for use of the device are introduced.The reliability of the device is checked by MIDAS/Gen and PMS and the paper analyzes its social and economic benefits which is suitable for retaining enginering construction of the large-span extra long and crane beam supporting plans on suspended ceiling board. Key words:installation retaining engineering:trusses;operating platform;roofs;hanging basket 1工程概况 盘锦忠旺铝业有限公司年产80万t铝挤压型 材及加工项目一期二标段B区工程位于辽宁省盘 锦市辽东湾新区,包含B1 B2 B3 B4挤压车间及配 套设施,E区办公区及F区成品物流区建筑面积约 图1工程效果 58万m2.其中涉及屋面吊顶板安装的B1 B2 B3 Fig.1 Engineering effect B44个挤压车间均为单层钢结构厂房,单个车间长 度为600m 宽121m 高17.2m 设4跨,吊车梁跨距 2移动式钢桁架操作平台构造及验算 均为28.5m 每跨均设有通长吊车梁,分别运行32/ 移动式钢桁架操作平台由3部分组成:①采用 5t1台及10/3t吊钩桥式起重机2台.屋面系统采 标准节及支座节设计的支撑桁架;②可拆卸的支撑 用双层金属压型板内夹150mm厚玻璃纤维保温棉 脚手架;③满铺金属筛网的操作平台.如图2所示. 及Z型钢檩条的构造,为双坡屋面,坡度为5%,吊 钢屋架操作平台 车梁顶距屋面梁底最小距离为4.5m.本工程采用 大跨度移动式钢桁架操作平台替代常规的檩条上 设置移动式吊篮的施工措施,应用面积约29万m2. 工程效果如图1所示. 支撑桁架 脚手架 [作者简介】桂佳,助理工程师,E-mal:flaming2008@126. 图2操作平台模型 [收稿日期]2016-08-30 Fig.2 Operating platform model 万方数据 28 施工技术 第46卷 2.1支撑桁架 栓受剪承载力N=46.512kN;单个螺栓受压承载 2.1.1支撑桁架组成 力N=81kN.由GB50017一20037.2.4得...
施工技术 2012年11月上 62 CONSTRUCTION TECHNOLOGY 第41卷第376期 砖混结构外套框架增层抗震性能研究 林爱洁,岳庆霞2,张鑫2 (1.山东建筑大学土木工程学院,山东济南250101;2.山东建筑大学工程鉴定加固研究所,山东济南250014) [摘要]首先对转换结构应用到外套增层改造中的发展概况进行总结,并针对实际工程对一种新型“加腋墙”转换 结构的使用进行了讨论;其次应用SAP2000对该工程建立有限元模型,对整体外套增层结构和原砖混结构进行分 析.增层前后对比分析结果表明,整体外套增层改造使原结构的层间位移角、层间剪力等都有明显增大,应进行必 要的抗震加固,以保证整体结构的抗震性能.另外,使用“加腋墙”转换结构的外套增层结构刚度比较均匀,有利于 结构的整体抗震性能. [关键词]改造;外套框架增层;有限元分析;抗震性能 [中图分类号]TU746.3 [文献标识码]A [文章编号]1002-8498(2012)21-0062-04 Seismic Study of Existing Masonry Structure on Extension- storey-adding Renovations Lin Aijie' Yue Qingxia2 Zhang Xin2 (1.School of Civil Engineering Shandong Jianzhu University Ji'nan Shandong 250101 China; 2.Research Institute of Engineering and Repair Shandong Jianzhu University Ji'nan Shandong 250014 China) Abstract:Firstly the development of transfer structures applying to extension-story-adding buildings is summarized and in connection with the actual project a new type of axillary-adding wall transfer structure is discussed.Secondly the SAP2000 is used to research the dynamic behavior of this structural system and analysis of the extension-storey-adding building and existing masonry structure are conducted.The results of parison indicate that the lateral displacement and drift angle have a significant growth after extension story adding so the necessary seismic strengthening measures are needed to ensure the overall seismic behavior.In addition the transfer structure used in practical project is good at the seismic behavior of the whol...
2017年6月下 施工技术 第46卷第12期 CONSTRUCTION TECHNOLOGY 23 D0I:10.7672/8js2017120023 砖混-预制空心楼板结构小面积火灾后加固设计研究* 裴卓非,许家文2,张弼伟2 (1.山西八建集团有限公司,山西太原030027;2.山西省建筑科学研究院,山西太原030001) [摘要]通过对火灾后砖混结构预制空心楼板进行加固设计研究,并对后加楼板进行静载试验和ANSYS有限元模 拟分析,对比楼板挠度变形与应变的试验值和模拟计算值,得到后加楼板承载力富余度较高,楼板使用时偏安全; 加载至最大荷载3kN/m2时楼板跨中位置裂缝宽度为0.08mm 卸载至0时裂缝依然存在,但裂缝宽度为0.01mm 此裂缝对楼板承载力等均无影响.因此,火灾后对烧伤部位预制空心楼板进行替换可行. [关键词]火灾:预制空心楼板;混凝土:静载试验;有限元分析 [中图分类号]TU362 [文献标识码]A [文章编号]1002-8498(2017)12-0023-04 Design Research of Brick and Precast Hollow Slab Structure Reinforcement After Small Area Fire PEI Zhuofei' XU Jiawen2 ZHANG Biwei (1.Taiyuan Supervision Station of Construction Project Quality Taiyuan Shanxi 030027 China; 2.Shanxi Academy of Building Research Taiyuan Shanxi 030001 China) Abstract:By reinforcement design research on brick and precast hollow slab after fire and static load test and ANSYS finite element simulation analysis for the new floor paring the test value and calculation ones of slab deflection deformation and strain the rich coefficient of load capacity of the new slab is higher and the floor is safe in using stage.When loading to the maximum load of 3kN/m2 the crack width at the middle span of floor is 0.08mm.When unloading to 0 cracks are still there but the crack width is 0.01mm.The cracks can not influence the bearing capacity of the floor etc.So after fire to replace the burned area with hollow floor slab is feasible. Key words:fire;precast hollow slab;concrete;static load test;finite element analysis 0引...