[关键词］装饰装修；单元式玻璃幕墙；性能；试验；施工技术 [中图分类号]TU767.6[文献标识码]A[文章编号]1002-8498（2015）09-0013-04 ConstructionTechnologyofPerformanceTestModelon Unitized Glass CurtainWall ZhaoYanmin （Department of Construction Engineering，NorthernBeijing VocationalEducation Institute,Beijing101400,China） AbstractInordertoensure the safetyand applicabilityofcurtainwallinmegaprojcttheperformance for the test model is important to realize the performance of curtain wall as a part of the test,and it is also the main basis for the actual project.In this paper,the curtain wallconstruction methods of start units, typical unitized glass wall and closer are introduced together with the design principle and test results based on the performance test model of one airport terminal.Finally，the general construction technologies of actual project are also proposed. Key words:decoration;unitized glass curtain wall;performance; testing;construction 单元式玻璃幕墙在超高层建筑及大型工程中原理及试验结果对其性能试验模型施工技术进行 得到广泛应用，为保证其适用性和安全性，一般均介绍分析，并对实际幕墙工程施工提出合理化建议。
2017年6月上 施工技术 第46卷第11期 CONSTRUCTION TECHNOLOGY 47 D0I:10.7672/5j52017110047 半刚性钢渣基层抗裂性能试验研究* 李伟，郎雷，王志浩，陈俊 (沈阳建筑大学土木工程学院，辽宁沈阳110168) [摘要]半刚性基层具有整体强度高、稳定性好且造价低等优点，被广泛应用于高等级公路的基层，但其随着温度 和湿度的变化容易产生开裂问题.用钢渣代替水泥稳定基层中的碎石，对不同级配的钢渣和砂砾混合料进行了室 内干缩和温缩试验研究，分析其干缩系数、温缩应变等参数随时间、失水率以及温度的变化规律.试验结果表明， 在合理选用配合比及水泥剂量的条件下，采用半刚性钢渣基层材料作为道路基层材料具有较好的抗裂性能，并提 高废钢渣的利用率. [关键词]公路工程：半刚性钢渣基层：干缩：温缩；钢渣混合料；抗裂性能 [中图分类号]U414 [文献标识码]A [文章编号]1002-8498(2017)11-0047-06 Experimental Research on Cracking Performance of Semi-rigid Steel Slag Base LI Wei LANG Lei WANG Zhihao CHEN Jun (School of Civil Engineering Shenyang Jianzhu University Shenyang Liaoning 110168 China) Abstract:With advantages of high strength good stability and economy semi-rigid base is widely used in base course of high grade highway but it is easy to produce the crack problems with the change of temperature and humidity.Using steel slag to replace the gravel in cement stabilized base and the laboratory tests of dry shrinkage and temperature shrinkage were carried out for different gradations of steel slag and gravel mixture in order to analyze the change rules of parameters such as dry shrinkage coefficient and temperature shrinkage strain with time water loss ratio and temperature.The test results show that:with reasonable mixing ratio and cement content semi-rigid steel slag base materials used as road materials has better cracking performance and will improve the utilization of waste steel slag. Key words:road construction;semi-rigid steel slag ...
2014年8月上 施工技术 第43卷第15期 CONSTRUCTION TECHNOLOGY 83 D0I:10.7672/5js2014150083 半刚性节点对插盘式脚手架自振周期的影响 吴福宝，殷晨波，戈文思 (南京工业大学机械与动力工程学院，江苏南京211816) [摘要]为研究插盘式脚手架的固有特性，运用ANSYS软件建立有限元模型，有效模拟了节点连接处的半刚性特 性.通过改变节点连接处刚度系数，分析不同连接刚度对脚手架自振周期的影响规律.结果表明，节点连接处刚 度变化对脚手架的低阶周期影响较大，对高阶自振周期的影响并不显著；并在此基础上拟合出低阶周期随刚度系 数变化的曲线图.指出对于插盘式脚手架的标准单跨单元，结构的步距和层高都已确定，节点连接处的刚度是影 响自振周期的主要因素. [关键词]脚手架；插盘式；半刚性；节点；自振周期 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2014)15-0083-03 Effects of Semi-rigid Joints on Natural Vibration Period of Disk Lock Steel Tubular Scaffold Wu Fubao Yin Chenbo Ge Wensi College of Mechanical and Power Engineering Nanjing University of Technology Nanjing Jiangsu 211816 China) Abstract:To investigate the inherent characteristics of the disk lock steel tubular scaffold the finite element model was built by ANSYS.This model effectively simulated the semi-rigid trait of joints.Then the effeets of various stiffness coefficients on natural vibration period of the scaffold were analyzed.The simulation results indicated that different stiffness coefficients had a great influence on the low-order period while the effect on the high-order period was little.On the basis of such analysis the fitted curves for the basic natural vibration period of the scaffold to the stiffness coefficient were plotted.It is pointed out that for standard single-span unit of disk lock steel tubular scaffold when the step distance and storey is assured the connection stiffness is the main influence factor on natural vibration per...
2016年7月下 施工技术 第45卷第14期 CONSTRUCTION TECHNOLOGY 105 D0I:10.7672/8js2016140105 半刚性满堂支撑架可靠性分析及优化设计* 曾亚平，孙新建1，朱云龙2 (1.青海大学水利电力学院，青海西宁810016；2.株洲市水利水电勘测设计院，湖南株洲412000) [摘要]建立半刚性满堂支撑架三维有限元模型，基于ANSYS-PDS采用蒙特卡罗法，考虑随机输人变量对满堂支 撑架灵敏度的影响，提出在现行规范经验公式中采用修正参数的方法，以改进规范计算精度.在此基础上，指定步 距、纵距、横距为设计变量，支撑架复合应力、纵横向水平杆的挠度为状态变量，钢管用量为目标函数进行优化分 析.通过对比得出考虑稳定性系数对纵距的影响比较大，其优化方案更具有安全性. [关键词]钢结构；支撑架；半刚性：有限元分析：优化：设计 [中图分类号]TU755.23 [文献标识码]A [文章编号]1002-8498(2016)14-0105-04 Study on Optimal Design and Reliable Analysis of Semi-rigid Full Hall Support Frame Zeng Yaping' Sun Xinjian' Zhu Yunlong (1.Water Conservancy and Electric Power Institute Qinghai University Xining Qinghai 810016 China; 2.Zhuzhou City Water Conserrancy and Hydropower Survey and Design Institute Zhuzhou Hu'nan 412000 China) Abstract:The 3D finite element model of semi-rigid full hall formwork support was established Monte Carlo method is adopted based on ANSYS-PDS and considering the influence of the random input variables on full hall formwork support frame sensitivity the parameter correction method adopted in current code empirical formula is put forward in order to improve the standard of accuracy.On this basis the specified step distance and the the vertical distance horizontal distance were appointed as design variables the deflection of the support frame posite stress horizontal and vertical horizontal bars were regarded as state variables and the amount of steel tube was the objective function on which optimization analysis was don...
[关键词】绿色建造；北欧四国；考察见闻；借鉴意义 [中图分类号】TU201.6【文献标识码】A [文章编号】1002-8498(2015)10-0001-05 InvestigationReportandReferenceSignificance of theGreen ConstructionDevelopmentinNordicCountries Xiao Xuwen'.2,Feng Dakuo'.3 （1.China State Construction Engineering Co.，Lid.，Beijing 100037,China;2.China Construction Industry Association Green Construction Committe，Beijing100037,China;3.State Key Laboratory of Hydroscience and Enginering，Tsinghua University，Bejing100084,China） a trend，which,however, is presently in its infancy in China.We should therefore learm advanced concepts,experience and technology from developed countries.The investigation in Nordic countries is firstly reported in detail.On this basis，several suggestions are then proposed in bination with actual situation in order to prehensively promote green construction in China. Key words:green construction;Nordic countries;investigation report;reference significance 2014年8月，作者赴芬兰、瑞典、挪威、丹麦等 北欧虽然所处的自然环境较为恶劣，却没有视 北欧四国进行了绿色建造、绿色建筑、生态城市的自然为生存对手的观念，建筑设计强调融人自然、 考察，所见所闻令人耳目一新，感触良多，颇受启模仿自然，尊重自然，在人性与自然的共同发展中 发。
施工技术 2010年10月 44 CONSTRUCTION TECHNOLOGY 第39卷第10期 北京海关游泳馆采光顶预应力张弦结构施工技术 张字鹏，徐中文，陈新礼 (北京市建筑工程研究院，北京100039) []北意海关湖泳馆采光项采用预应力弦传构.根据预应力拉施工方案，应用Midas./Gen有限元计算 件对施工过程进行仿真分析，为实际张时张插力值提供理论体搭.在整个张指施工过程中对结构变形进竹监 倒，实侧结果理新据误差较小，满足规范和设计要求. [关键询]预应力：张随结构：伤真计算：工测 [中分类]TU758.166 [献杉识码]A [章编导]1002-8498(2010)10-0044-03 Construction Technology of Prestressed Beam-string Structure in Lighting Roof of Beijing Customs Swimming Gymnasium Zhang Yupeng Xu Zhongwen Chen Xinli Beijing Building Construction Research Institute Beijing 100039 China) Abstract:Prestressed beam-string structure is adopted in lighting roof of Beijing Customs Swimming Gymnasium.According to stretching process prestressing construction is simulated by calculation software of Midas/Gen which provides a theoretical basis for the actual value of tension.In the stretching process vertical deformation is monitored and the measured data which match the research data can satisfy with requirements of the specifications and design. Key words:prestress:beam-string strueture:simulation caleulation:construction monitoring 1工程概况 上弦钢管 北京海关游泳馆采光顶面为双曲椭球形，长轴 跨度42.9m 短轴跨度20.9m 笑高2m.采光项屋面采 用3层L0WE中空夹胶彼端莱楼，外层破端傲丝网印 下弦拉索 网纹图亲，中向设置自动烟窗.破璃暴墙支撑钢 三图 结构采用预应力张弦结构，通过短钢柱连接手下部混 凝土环梁中的可滑动支座上.读张雅结构的上雅为 b典型剂面 巾203×10钢管，撑杆为102×6钢管，长轴方向下弦 为b36mm不锈钢拉索（见图1a).拉索一端圈定，一 图1采光质三及刺面 Fig.1 Three-dimensional and typical profile of lighting roof 端可调，其调节端采用单螺杆式可调节具. 2结构体系 3预应力施工方 本工程采光顶钢结构由7榴平行的单向张弦梁3.1结构施工流程 成，每棍张梁的上弦向上弯曲呈拱形（见图1），各 本工程施工流程：搭设支撑脚手架一→单福张弦梁 撑杆的上端与上弦对应节点沿索张拉...
[关键词］机场；收费站：钢结构；索膜结构；施工模拟 【中图分类号]TU383 [文献标识码】A [文章编号]1002-8498(2011)21-0030-04 ProcedureofTensioningtheCable-membraneSystemoftheTollStation ontheSouthLineTowardsBeijingAirport Hu Qingwei,Ye Xiaobing，Bo Yanpei (Bejing N&L Fabric Technology Co.,Lid.，Beijing 102601,China) Abstract:The difficulties lying in the project of the great pavilion on the south line towards Beijing Airport are installing and tensioning the cable system. Accurate construction simulation is carried out according to installation sequence such as installing suspension cables,tensioning guy cables,stretching side ring cables, and tensioning valley cables,in order to check if tensioning equipments are appropriate,and make it to be the basis of measure supervision.The results in the actual construction pletely verify the accuracy of simulation. The whole process of cable system installation is divided into 11 steps，which ensure applying prestress on the plicated big span flexible space structure. This paper summarizes the experience acquired during the construction. Key words:airport; toll station; steel structures; cable-membrane structures; construction simulation 1工程概况 顶标高35.96m，柱长约30.359m，单根重约38t，钢 北京机场南线收费站位于北京市新建T3航站 枪杆通过拉索与地面锚座相连。
施工技术 2015年3月下 22 CONSTRUCTION TECHNOLOGY 第44卷第6期 D0l:10.7672/sgjs2015060022 北京日出东方凯宾斯基酒店框架式无立柱隐框 曲面玻璃幕墙安装技术 田承行，苟金瑞，米继东，王三亮 (北京城建集团有限责任公司，北京100088) [摘要]结合北京日出东方凯宾斯基酒店幕墙工程，重点分析了曲面玻璃幕墙安装过程中因为建筑外形特点而产 生的问题和施工难点，针对上述问题提出竖向龙骨采用拉弯龙骨和设计一种新型玻璃幕墙与主体结构连接转接件 等合理化建议和措施，确定取消立柱区别于规则框架式隐框曲面玻璃幕墙的安装方案，确保了本工程施工质量和 工期. [关键词]装饰工程；玻璃幕墙；曲面玻璃幕墙；隐框；安装 [中图分类号]TU767 [文献标识码]A [文章编号]1002-8498(2015)06-0022-04 Installation of Concealed Frame Curved Glass Curtain Wall Without Columns in Sunrise East Kempinski Hotel Tian Chenghang Gou Jinrui Mi Jidong Wang Sanliang Beijing Urban Construction Group Co.Lad.Beijing 100088 China) Abstract:Combining with the curtain wall of Sunrise East Kempinski Hotel the construction difficulties and problems in the installation of curtain wall caused by the building shape characteristics are analyzed in detail.A series of advices and measures are put forward including the tension-bending keel is used as columns the design of new type of connectors between curtain wall and main structures.The good construction quality and construction period is ensured. Key words:decoration;glass curtain wall;curved glass curtain wall;concealed frame;installation 1工程概况 北京日出东方凯宾斯基酒店工程建筑外形独 特，每层平面椭圆形逐层渐变，这就形成了双曲面 的外立面.塔楼幕墙系统采用铝合金及钢管龙骨 架式无立柱 支撑体系，竖向主龙骨采用Q235B圆钢管，表面氟 急框玻璃幕墙 碳喷涂处理，横向龙骨采用氟碳喷涂的铝合金型 材，喷涂厚度≥40μm 钢管立柱通过转接件挂接到 主体钢结构上，玻璃面板采用(62.28PVB6 Low-E18A62.28PVB6)mm双银Low-E中 空钢化夹胶暖边玻璃，部分消防出口位置采用(8 24A8)mm双银Low-E中空钢化暖边玻璃，玻璃角 部设置矩形铝合金固定压板.为实现建筑外观造 型，采用框架式无立柱隐框曲面玻璃幕墙施工技 图1框架式无立柱隐框曲面玻璃幕墙分布 术.具体位置...
[关键词】塔；钢结构；吊装；安装；检测 [中图分类号】TU758.1[文献标识码】A[文章编号】1002-8498（2013)08-0006-03 SteelStructuresInstallationTechnologyoftheHigh Flexible TowerBody ofLookoutTower inBeijingOlympicPark Yu Changwei,Gao Yulan,Wang Yimin，Sang Xiuxing （Bejing Construction Engineering Group Co.，Lad.，Bejing 100055，China) Abstract;Lookout Tower in Beijing Olympic Park is super high-rise flexible building with the height of 248m. It is plex and dificult for construction. By selection of the schemes, the steel structures installation technology was introduced, which was assembling units on the ground, and integrally hoisting units by 1 000t m attached jib tower crane.236 units of tower body were hoisted， and it largely induced the work at high altitude. The installation technologies of steel structures were introduced in detail, including main machine selection， tower body segment, assembly of the steel structures，sliding and location of units, installation of units and so on. Key words;towers;steel structures;hoists;installation;detection
1工程概况筒壳直径为6m，塔2、塔3由外层筒壳和内层角柱 奥林匹克公园瞭望塔位于奥林匹克公园中心核心筒组成，外层筒壳直径为7.3m。
[关键词】钢结构；塔；安全防护；爬架；焊接 [中图分类号】TU714 【文献标识码】A [文章编号]1002-8498（2013)02-0001-05 SafetyProtectionTechnologyforFlexibleSteelStructures Construction ofBeijing OlympicParkLookout Tower Xu Delin，Sun Lianxue，Yu Changwei, Guo Feng,Huang Banglun （Bejing Construction Engineering Group Co.，Lad.，Beijing 100055，China) Abstract; Lookout Tower in Beijing Olympic Park is super high flexible steel structure, which is posed f towerbase，towerbodyand tower rown，anditincludesfivetowers withdifferent diameter among 6.5m and 14m.This project has characteristics of large engineering quantity，plex structure, high requirements for installation and welding protection. The main safety protection risks according to tower body and crown construction are analyzed. During construction of the tower crown, the main treatmentmeasures are similar to that of tower body,and special operation platformis used.Itispointed out that safety measures and management measures should be applied at the same time. Key words;steel structures; towers; safety protection; climbing scaffold; welding 随着我国城市化进程的步伐不断加快，资源紧部分组成，整个平面由5个直径6.5～14m的塔组 缺的问题日益明显，为提高资源的利用率，超高层成。
2016年4月上 施工技术 第45卷第7期 CONSTRUCTION TECHNOLOGY 99 D0I:10.7672/8js2016070099 北京CBD核心区地下公共空间市政基础设施建设 张晋勋1，李洪毅1，蔡明2，谢佳华3，张洁，周辉，许晓东3 (1.北京城建集团，北京100088：2.北京市建筑设计研究院有限公司，北京100045； 3 北京国际商务中心区开发建设有限公司，北京100020) [摘要]北京CBD核心区地下公共空间市政交通基础设施项目，是集交通、地下综合管廊、景观以及综合防灾功能 为一体的地下空间建设项目.为保证CBD核心区资源的高度整合，采用综合管廊模式设计.工程建设创造性地 提出并采用了“一体化”施工模式，既保证了工程本身建设进度，也有效配合了各二级地块的建设进度，节约了大量 的社会资源. [关键词]地下工程：综合管廊；核心区；“一体化”施工 [中图分类号]TU921 [文献标识码]A [文章编号]1002-8498(2016)07-0099-06 Underground Public Space Municipal Infrastructure Construction in Beijing CBD Core Area Zhang Jinxun' Li Hongyi' Cai Ming2 Xie Jiahua Zhang Jie' Zhou Hui' Xu Xiaodong (1.Beijing Urban Construction Group Co.Ltd.Beijing 100088 China;2.Beijing Building Construction Research Institute Co.Lad.Beijing 100045 China;3.Beijing International Central Business District Dexelopment Construction Company Beijing 100020 China) Abstract:Underground public space municipal transport infrastructure projects in Beijing CBD area is posed of transportation underground pipeline corridors landscape and prehensive disaster prevention function.To ensure a high degree of integration of the CBD core area of resources an integrated tube design gallery mode was adopted.The integration construction mode was put forward which not only can ensure the construction progress of the project and save social resources but also effectively improve construction progress of each secondary plots. Key words:underground;pipeline gallery;core area;integration construction 北京CBD...
施工技术 2014年6月下 54 CONSTRUCTION TECHNOLOGY 第43卷第12期 D01:10.7672/gjs2014120054 兴隆水利枢纽围堰崩塌抢险技术* 陈新，潘洪 (武警水电第二总队第四支队，江西南昌330096) [摘要]兴隆水利枢纽一期围堰为全年10年一遇土石围堰，受20年一遇秋季洪水的影响，围堰局部出现崩塌并迅 速扩展，险情急剧加重.首先对灾害原因进行分析，得出抢险的特点与难点，最后有针对性地制定了抢险方案，经 86h紧急抢修，圆满完成此次抢险任务.对此次围堰抢险施工技术作了详细介绍和经验总结. [关键词]水利枢纽；围堰；崩塌；抢险 [中图分类号]TV61 [文献标识码]A [文章编号]1002-8498(2014)12-0054-02 Emergency Rescue About Cofferdam Collapse in Xinglong Hydro-junction Chen Xin Pan Hong No.4 Detachment of No.2 Hydropower of Armed Police Nanchang Jiangxi 330096 China) Abstract:Xinglong Hydro-junction is a earth-rock cofferdam which is very rare.Because of the influence of the most extraordinary flood in twenty years the cofferdam is collapse in somewhere then the situation is very dangerous.The disaster causes are analyzed the characteristics and difficulties of the disaster are put forward then the emergency rescue scheme is determined.The emergency rescue is successful finished after the soldiers working hard.The construction technology of emergeney rescue for the cofferdam is introdueed in detail and experience is summarized. Key words:hydro-junction cofferdams;collapse;emergency rescue 1险情概述 10m扩大到100m 崩塌高程从39.5m迅速向堰顶 1.1险情基本情况 延伸，局部崩塌处高程达41.50m 距堰顶高程仅 兴隆水利枢纽位于汉江下游湖北省潜江境内，1.同时，汉江上游持续降雨，流量不断增大，水位 上距丹江口水库380km 大(1)型水利枢纽项目，由 再继续上涨，险情将加剧，如不及时处置，将极可能 泄水闸、船闸、电站厂房、鱼道、两岸滩地过流段及 发生溃堰，围堰内价值数亿元的设备、材料以及数 其上交通桥组成.兴隆水利枢纽一期围堰为全年 千施工人员的生命安全受到严重威胁. 10年一遇土石围堰，塑性混凝土防渗墙圈式全封闭 2011年9月18日，武警水电第二总队接到湖 形式防渗.围堰总长5589.7m 其中上游围堰长 北省南水北调局请求火速支援兴隆水利枢纽抗洪 1724.5m 顶高4...
施工技术 2011年8月上 24 CONSTRUCTIONTECHNOLOCY 第40卷第346期 先张法预应力拱板粮仓屋盖原位现浇施工 张珂峰'，夏正兵2 （1.南通华荣建设集团有限公司，江苏南通226005；2.南通市广播电视大学建筑工程系，江苏南通226006） [摘要】根据现浇先张法预应力拱板屋盖的设计方案，有针对性地利用顶部圈梁作为张拉台座和用支撑钢杆与钢 筋与中部圈梁的拉结作用有效地平衡了张拉时对台座的不平衡力，形成了先张法预应力拱板粮仓屋盖原位现浇施 工法.该方法利用钢管排架作拱板屋架的支撑架，室内排架顶部水平钢管顶撑于圈梁内侧和对圈粱的加固措施， 并采用钢管顶撑和斜拉钢筋对张拉力的平衡作用保证了先张法张拉施工的安全、可募.该方法施工进度快、整体 性好，并能够解决大型吊装机械难以进场的难题，经济效益明显. [关键调】先张法；预应力；拱板屋盖；现浇施工 【中图分类号]TU758.13 【文献标识码】A [文章编号〕1002-8498（2011)15-0024-03 Cast-in-situConstructionMethodofPretensioned PrestressedArchBarnRoof Zhang Kefeng'，Xia Zhengbing （1.Nantong Huarong Construction Group Nantong，Jiangsu 226005 China; 2.Department of Building Engineering Nanong Radio &Television University，Nantong Jiangsu226006，China) Abstract;According to the scheme of cast-in-situ pretensioned prestressed arch board roof， the authors present cast-in-situ construction method of barm roof with pretensioned prestressed arch board which uses the top ring beam as tension bench and keep the tension bench in balance by connecting support steel suspenders stay steel bars and the central ring beam. In this method steel pipe frames are used as uodods oddo uo dd s os oo pejo p uon inner side of ring beam and measures are taken to reinforce ring beam which ensure the safety and reliability of construction by balancing tensioning forces with steel pipes supporting and stay steel bars. This method can quicken construction schedule and solve the problem of big hoisting machinery approaching to construction site and bring about great economic benefit. Key words:pretensioning method;prestress;arch board roof;cast-in-situ construction 1工程概况 60mm的隔板相连，上顶板配筋为864$10，分布 连云港市新海粮食物流中心普安仓储加工区 筋为Φ4@200，下底板配筋为36Φ5，分布筋为Φ4@ 南京粮食科学研究院设计的21m跨钢筋混凝土拱 张拉控制应力α=560N/mm².拱板混凝土强度 板平房仓标准仓型设计图集.21m跨先张法预应力 等级为C35，其余混凝土为C25. 拱板屋架实际跨长21720mm（两端各出轴线 该工程若采用预制方案，需占用大量场地，硬化 360mm），宽均为1220mm，每幢50福，13幢共650 作业台面，养护时间长、费工、费料并且吊装难度大， 福；屋架上顶板为抛物线型弧板，下底板为平板，厚 影响工期，所以采用原位现浇法施工.但该方法难 度均为40mm，上、下板两侧均为肋梁，上顶板肋梁 度较大，且没有工艺标准指导.本工程根据现场条 为70mmx150mm，上、...
施工技术 2017年9月下 42 CONSTRUCTION TECHNOLOGY 第46卷第18期 D0I:10.7672/sjs2017180042 倒挂结构高空施工安全质量控制分析* 况中华1，李兵，李鑫奎，滕鑫2 (1.上海建工集团股份有限公司，上海201114；2.上海建工四建集团有限公司，上海201103) [摘要]介绍了某高层塔楼倒挂结构逆序施工工艺.受下部楼板荷载限制，采用底部2层钢梁形成临时桁架，承受 部分上部悬挂结构荷载.同时采用施工控制技术对施工质量和安全进行管控，根据计算得到的施工过程中结构的 变形，设定预变形使结构完成时达到设计最终状态.同时依据计算结果在结构薄弱处布置监测点，进行施工阶段 的监测，以确保结构施工的安全性. [关键词]钢结构；倒挂结构；逆序施工；质量；安全；预变形 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2017)18-0042-03 Analysis of High-altitude Construction Safety and Quality Control for Inversion Structure KUANG Zhonghua' LI Bing' LI Xinkui' TENG Xin2 (1.Shanghai Construction Group Co.Lid.Shanghai 201114 China; 2.Shanghai Construction No.4(Group)Co.Lsd.Shanghai 201103 China) Abstract:Construction process on high-rise inversion structure is introduced.The temporary truss is formed by two steel beams at the bottom which is subjected to the load of the upper part of the suspension structure.Meanwhile the construction control technology for construction quality and safety control are used.According to the deformation of the structure calculated in the construction process the pre-deformation of the structure is set to plete the final state of design.At the same time the monitor for construction stage is done to ensure the safety of the structure construction on the basis of calculation results in weak structure. Key words:steel structures;inversion structure;reverse construction;quality;safety;pre-deformation 0引言 体的综合高层塔楼组成.1号塔楼(T1)地上60层， 高层建筑附属的倒挂结构的施工方案选择合 建筑高250m 2号塔楼(T2)地上59层，建筑高 ...
施工技术 2013年10月下 108 CONSTRUCTION TECHNOLOGY 第42卷第20期 D0I:10.7672/8gjs2013200108 倒挂井壁法在煤矿深基坑中的应用 于卫锋 (河南理工大学土木工程学院，河南焦作454000) [摘要]针对梁北矿矸石翻车机房基坑深度大、施工空间小、距离其他结构近、安全程度要求高等困难，借鉴竖井井 筒施工经验，采用倒挂井壁法进行基坑的开挖和围护，使基坑围护结构及翻车机房承重结构合为一体，节省了临时 支护设施，减少了施工工序，降低了工程成本.施工全过程中的地面沉降观测结果显示，基坑围护效果良好. [关键词]地下工程；基坑；倒挂井壁法；施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2013)20-0108-03 The Application of Inverted Side-wall in Deep Foundation Excavation in Coal Mine Yu Weifeng School of Civil Engineering He'nan Polytechnic University Jiaozuo He'nan 454000 China) Abstract:According to the difficulties of the foundation excavation with large depth small construction space close distance and high safety requirements in Liangbei mine the method of inverted side-wall to excavate and maintain the foundation excavation was put forward using vertical shaft construction experience as reference.This method made maintain structure and load-bearing structure together which saved temporary support facilities reduced the construction process and reduced the cost of the project. The observations of land subsidence in the whole construction process show that the effect of maintenance excavation is good. Key words:underground;foundation excavation;inverted side-wall method;construction 1工程概况 梁北矿是神火集团名下重要的矿井之一，为了 矸石山涵！ 翻车机房基础 开挖轮廓线、 提高矿井产量，需要对该矿出矸系统进行扩建，新 好石山涵洞2 8800 建研石翻车机房，由于场地有限，该机房全部位于 纹车房 8400 翻车中心线 N 地面以下，形成的基坑长12.6m 宽8.7m 深 13600 17.0m 东侧是水泵房，西北侧是研石山涵洞，西南 图1基坑位置平面 是临时绞车房，距离水泵房和绞车房的最短距离分 Fig.1 Location plan of the foundat...
施工技术 2013年4月上 68 CONSTRUCTION TECHNOLOGY 第42卷第7期 D0I:10.7672/sgjs2013070068 低渗透性情况下注浆方法研究* 陈亮晶，牛建东 (湖南省地质建设工程（集团）总公司，湖南长沙410014) [摘要】在地基处理、防渗椎幕等工程中经常会用到注浆工艺，由于地层渗透性的差异，会出现不同的注浆效果，特 别对于低渗透性岩土层，可能会因吸浆量过少而达不到注浆效果.根据水文地质理论和实践经验，在填土地基、缺 陷桩基等低渗透性情况下，对加固处理采用压力循环注浆的方法和工艺进行初步探讨. [关键词]地基；低渗透性；注浆；加固；施工技术 [中图分类号]TU753 【文献标识码]A [文章编号]1002-8498(2013)07-0068-03 Research on the Grouting Methods in Low Permeability Conditions Chen Liangjing Niu Jiandong (Hu'nan Geological Engineering Corporation Changsha Hu'nan 410014 China) Abstract:Grouting methods are often used in foundation treatment and construction of impermeable curtains.The grouting effects may be different due to different ground permeability.Particularly for low permeability geotechnical layer the grouting effect may not be achieved because the amount of slurry suction is too little.According to the hydrogeology theory and practice experience this paper gives a preliminary discussion on the methods and processes of strengthening low permeability foundations such as fill foundations defected piles using pressure cycle grouting. Key words:foundation;low permeability;grouting;strengthening;construction 填土地基具有不均匀性和密实度差的特点，极理，单位时间压入水量与岩土层的渗透性、试验水 易产生不均匀沉降影响其正常使用.在某些桩基头、井径、试验长度等有关： 施工中，由于施工过程中处理不当，造成孔底沉渣 Q=2kHL/In(L/r.) (1) 过厚、混凝土离析、振捣不密实形成蜂窝麻面等现 式中：k为渗透系数；L为试验长度；H为试验水头 象，影响了桩基质量.对此，一般采取注浆的方法 差；为钻孔半径. 或者压力注浆处理.根据实践经验结合理论知识， 总的压入水量V=Qt. 提出压力循环注浆工艺，采用压力循环注浆处理填 对压水试验钻孔而言，其渗透性是由地层的特 土加固、桩基补强等，均取得了较好效果.据此，压 点决定的，试验长度、钻孔半径是注浆前确定的，若 力循环注浆可以推广到锚...
施工技术 2016年5月下 104 CONSTRUCTION TECHNOLOGY 第45卷第10期 D0I:10.7672/8js2016100104 低液限粉土路基填料施工技术研究 秦李林 (太原市住房和城乡建设委员会，山西太原030009) [摘要]低液限粉土具有液限低、塑性指数小、黏粒含量少、强度和水稳定性差等工程特性，施工中易被压碎，扬尘 大，不易成型，碾压时易产生叠瓦状推移和分层现象.在广源高速公路工程建设中，通过对含水量、松铺厚度、碾压 工艺等参数对压实度的影响研究，形成了低液限粉土路基施工关键技术，经实践证明，低液限粉土作为高速公路路 堤填料是完全可行的，能够满足高速公路路基施工质量标准. [关键词]公路工程；高速公路；低液限粉土；施工技术；研究 [中图分类号]U416.1 [文献标识码]A [文章编号]1002-8498(2016)10-0104-04 Study on Construction Technology of Low Liquid Limit Silt Subgrade Filling Qin Lilin (Taiyuan Housing and Urban and Rural Construction Committee Taiyuan Shanxi 030009 China) Abstract:Low liquid limit silt has characteristics of low liquid limit small plasticity index low clay content bad strength and water stability and poor engineering properties.It is easy to be crushed in construction with big dust and hard to be shaped.It is also easy to produce the phenomenon of tile load and delimitation during rolling.In Guangyuan expressway engineering construction through study on the effect of moisture loose paving thickness and rolling process parameters to degree of paction the key construction technologies of the low liquid limit silt subgrade are put forward.Engineering practice proves that low liquid limit silt as embankment is feasible which can meet the quality standard of highway roadbed construction. Key words:road construction;expressway;low liquid limit silt;construction;study 0引言 施工的角度.通过分析低液限粉土工程特性，将试 广灵至浑源高速公路第六合同段位于山西省验研究与工程实践相结合，分析含水量、松铺厚度、 大同市广灵县内，根据自然条件，该地区土质属低压实遍数等参数对压实度的影响，探讨各...
2016年10月下 施工技术 第45卷第20期 CONSTRUCTION TECHNOLOGY 45 D0I:10.7672/sjs2016200045 不等高张弦三角管桁架带柱累积滑移施工技术 杨向阳，王金辉，刘帅，刘汇东，桑晓景 (中建三局集团有限公司，湖北武汉430074) [摘要]新疆国际会展中心二期工程钢结构施工工期紧迫，现有施工场地条件受限制，气候条件恶劣.针对上述施 工难点，对本工程区中心展厅提出了不等高张弦三角管桁架带柱累积滑移施工技术.阐述了滑移总体思路及带 柱滑移施工流程，通过深化设计合理布置轨道梁及滑移轨道、液压爬行器、滑靴：并通过带柱滑移施工模拟分析，对 滑移轨道及桁架设置合理的支撑架，保证了滑移过程中钢柱与桁架的整体稳定性，实现了滑移到位后滑移钢柱与 下部钢柱的准确对接. [关键词]钢结构；桁架；不等高张弦三角管桁架；数值模拟；施工技术 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2016)20-0045-04 Accumulative Sliding Construction Technology of Unequal Height Triangular Truss-string Structure with Column Yang Xiangyang Wang Jinhui Liu Shuai Liu Huidong Sang Xiaojing China Construction Third Engineering Bureau Co.Lad.Wuhan Hubei 430074 China) Abstract:The construction period of the 2nd phase project of Xinjiang International Exhibition Center is very short the construction site conditions are limited and the climate conditions are worse.According to all these construction difficulties accumulative sliding construction technology of unequal height triangular truss-string strueture with column is proposed which is in the area of the central exhibition room of B zone.In this paper the general thought and the construction process of the cumulative sliding technique with column are introduced and explained.The sliding track rail beams hydraulic crawlers and sliding shoes are rationally arranged through the detailed design.The supporting frame for the sliding rail and truss is reasonably designed and set are ensured through the construction...
施工技术 2012年11月上 58 CONSTRUCTION TECHNOLOGY 第41卷第376期 不同底模对砂浆强度的影响 孙永民，胡长明，宋方方 (西安建筑科技大学土木工程学院，陕西西安710055) [摘要]通过对不同底模的水泥砂浆试块和混合砂浆试块的强度试验研究，在相同稠度情况下，采用不同底模时， 水泥砂浆强度比混合砂浆强度影响大.研究结果表明：钢底模比砖底模的离散性小；随者稠度变化，水泥砂浆采用 钢底模比采用砖底模影响因素大，但混合砂浆采用钢底模比砖底模影响因素小. [关键词]砌体结构；砂浆；强度；稠度；试验分析 [中图分类号]TU578 [文献标识码]A [文章编号]1002-8498(2012)21-0058-04 Effect of Different Bottom Formwork on Strength of Mortar Sun Yongmin Hu Changming Song Fangfang (School of Civil Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China) Abstract:The strength of cement mortar and mixed mortar with different bottom formwork were studied by tests.Results show that under the same consistency the change of bottom mould has bigger influence on the strength of cement mortar than mixed mortar.Specifically the discreteness of mortar strength with steel formwork is smaller than that with brick formwork.With the change of consistency the cement mortar strength shows higher variation with steel formwork than with brick formwork.However for mixed mortar strength the influence of consistency with steel formwork is smaller than that with brick formwork. Key words:masonry construction;mortar;strength;consistency;test analysis 0引言 本试验砂浆类型为水泥砂浆和水泥混合砂浆 砌体结构在我国有悠久历史，由于我国的现（掺稠化粉或白灰膏），水泥砂浆采用32.5级硅酸 状，砌体结构仍在房屋建筑中占有相当大的比例，盐水泥，混合砂浆采用42.5级硅酸盐水泥，水泥用 而砌筑砂浆由于在砌体工程中主要起黏结、衬垫和量为210kg/m3.试验中选用的砂为中砂，含泥量 传递应力的作用，因此工程中往往把砌筑砂浆的强4%.拌制砂浆的水为不含有害杂质的洁净水.制 度检验作为性能控制的主要因素.由于砂浆强度作试块中的底模采用钢底模、铁底模和普通黏土砖 评定时砂浆试块强度与试块制作时的底模有很大底模. 关系，因此现行国家标准《砌...
[关键词】桩基；螺旋锚桩；叶片倾角；塑性应变场；力学模型；有限元分析 [中图分类号】TU473【文献标识码]A[文章编号]1002-8498(2017)02-0088-04 AnalysisofVerticalPulloutFailureMechanismofSingleSpiral AnchorPilewithDifferentBladeAngle Zhang Yahui '，Hu Wei '，Zou Guihua',，Liu Shunkai'，Xiang Hui² (1.School of Civil Engineering,Hainan Unizersity,Haikou,Hainan 570228,China;2.China Construction Third Engineering Bureau Co.,Ltd.,Wuhan,Hubei 430070, China) Abstract:The building of mechanical model is premise to calculate pull-out ultimate capacity of screw anchor. While, the key to evaluate the model is accurate description of fracture surface under the limit state. In the existing mechanical model， the assumption of the fracture surface without considering the effect of the actual blade inclination is based on the horizontal blade,which is asymmetrical. Based on nine kinds of blade angle,the paper established the finite element model, the influence of blade angle on
zone increases.Accordingly,based on the further quantify of fracture surface vary with blade angle, two fracture surface model considering the influence of blade angle is proposed. The results further deepen the pull-out failure mechanism of single screw anchor. Key words:pile foundations; screw anchor; blade angle; plastic strain field; mechanical model; finite element analysis 0引言月，台风“纳沙”造成海南某光伏发电站相当数量的 螺旋锚桩作为一种提供抗拔承载力的地下锚用于固定地面光伏支架的螺旋锚桩基础被整体拔 固装置，因具有安装速度快、承载能力强等优点，近出，与光伏支架脱离，损失严重。