施工技术 2013年4月下 50 CONSTRUCTION TECHNOLOGY 第42卷第8期 D0I:10.7672/sgjs2013080050 大跨空间网格结构连续性倒塌研究及实例分析 张会'，喻云龙2，常银生2 (1.金肯职业技术学院建筑与土木工程系，江苏南京211156；2.南京市房屋安全鉴定处，江苏南京210029) [摘要]大跨空间网格结构的连续倒塌分析可采用变换荷载路径法，首先对结构进行重要构件的判断，主要包括概 念判断和敏感性分析.采用ANSYS的APDL语言编写了大跨空间结构的简化敏感性分析程序.结合某网球馆钢 结构工程，对该结构角柱失效模式进行了连续倒塌分析.分析结果表明角柱失效的影响区域有限，除部分腹杆达 到屈服状态以外，相邻的主要构件无论是变形还是应力均没有受到大的影响，故角柱失效结构不会发生连续性 倒塌. [关键词]钢结构；空间网格结构；连续性倒塌；重要构件；敏感性分析 [中图分类号]TU312.3 [文献标识码]A [文章编号]1002-8498(2013)08-0050-04 The Progressive Collapse Research and Example Analysis of Long-span Space Grid Structures Zhang Hui' Yu Yunlong2 Chang Yinsheng? (1.Department of Architecture and Ciril Engineering Jinken College of Technology Nanyjing Jiangsu 211156 China: 2.Nanjing Identification of the Housing Department Security Nanjing Jiangsu 210029 China) Abstract:The progressive collapse analysis of long-span space grid structures can use alternate path method.The important ponent of the whole structure should be firstly estimated which includes conceptual estimate and sensitivity analysis.The APDL language of the ANSYS software was used to write a program of sensitivity analysis.Combining with the tennis gymnasium steel engineering the progressive collapse of corner column invalidation mode was analyzed.The results show that the affective area by corner column invalidation was limited except some web member yielding the displacement and stress of the members around were little affected.So the corner column invalidation mode wouldn't bring on pr...
施工技术 2014年6月上 122 CONSTRUCTION TECHNOLOGY 第43卷第11期 D01:10.7672/sgjs2014110122 大跨空间结构施工临时支撑卸载次序研究* 饶晓文，李鸿晶2，伍小平3 (1.广西机电职业技术学院建筑工程系，广西南宁530007；2.南京工业大学土木工程学院，江苏南京210009： 3.上海建工（集团）总公司，上海200050) [摘要]以多跨连续梁为研究对象，对多个临时支撑的卸载过程进行研究，考虑卸载的非线性和时变性，假定各种 不同的卸载次序，分析和比较不同的卸载次序对结构和临时支撑施工内力的影响，探讨其中的规律并提出了一些 相对合理、可供参考的卸载次序和原则.最后，以国内某大跨网架的外部围护结构作为案例分析对象，应用前面分 析得出的结论，确定了结构卸载的大致方案和原则. [关键词]钢结构；大跨空间结构：临时支撑；卸载；施工技术 [中图分类号]TU399;TU393.3 [文献标识码]A [文章编号]1002-8498(2014)11-0122-05 Study on Unloading Sequence of the Temporary Support in Construction of Long-span Spatial Structures Rao Xiaowen' Li Hongjing㎡，Wu Xiaoping (1.Cizil Engineering Department Guangxi Technological College of Machinery and Electricity Nanning Guangxi 530007 China;2.College of Civil Engineering Nanjing University of Technology Nanjing Jiangsu 210009 China; 3.Shanghai Construction Group General Co.Shanghai 200050 China) Abstract:Based on multi-span continuous beam this paper studies on the unloading process of several temporary supports considers the nonlinear and time variation of unloading assumes all different load- relieving sequences analyzes the effect of different unloading sequences on construction internal force of structure and temporary support discusses on the law and puts forward some relatively reasonable unloading sequences and principles.Finally with certain long-span grid of the external retaining structure as the object of case analysis the conclusions by application of the preceding analysis determine the structu...
2016年5月上 施工技术 第45卷第9期 CONSTRUCTION TECHNOLOGY 17 D0I:10.7672/sgjs2016090017 大跨度钢结构施工用临时支撑体系的设置与优化 白洁，葛杰，苗冬梅，马荣全 (中国建筑第八工程局有限公司工程研究院，上海200122) [摘要]大跨度钢结构的施工过程是由局部到整体的过程，结构未成型之前尚不能完全靠自身承载或保持稳定，因 此在其建造过程中需临时支撑.然而目前临时支撑多根据经验设置，设置数量往往偏于保守，加之临时支撑体系 的加工制作、安装以及后期拆除均须耗费大量的人力、物力和时间，因而有必要对临时支撑体系进行优化.根据以 往施工案例总结了大跨度钢结构临时支撑体系的布置原则，并以中国博览会会展综合体项目为例，提出了大跨度 钢结构临时支撑体系的优化方法. [关键词]钢结构；临时支撑；安装；优化 [中图分类号]TU746.3 [文献标识码]A [文章编号]1002-8498(2016)09-0017-04 Layout and Optimization of Temporary Steel Support for Construction of Large-span Steel Structures Bai Jie Ge Jie Miao Dongmei Ma Rongquan Engineering Research Institute China Construction Eighth Engineering Division Co.Lad.Shanghai 200122 China Abstract:Temporary steel support is necessary to keep the unfinished structure stable and safe in the construction process of large-span steel structures.However the layout of temporary steel support has always been according to experience and too conservative costing too much time and labor in its production installation and removal.Therefore it is necessary to optimize the temporary steel support system.This paper summarized the layout principle of temporary steel support and proposed optimization method for temporary steel support of large-span steel structure. Key words:steel structures;temporary supports;installation;optimization 1临时支撑体系的作用 坏.如何选择一个适合大跨度空间结构临时支撑 大跨度钢结构的施工过程是由局部到整体的 布置，保证结构安装的安全可靠性而又符合现场下 过程，结构未成型之前尚不能完全靠自身承载或保 部结构形式便于施工，成为一个值得探讨的问题. 持稳定，通常需要在安装阶段预先搭设临时支撑， 临时支撑的布置与结构的施工方法有关.空 在结构安装完成后，再...
2015年4月下 施工技术 第44卷第8期 CONSTRUCTION TECHNOLOGY 71 D0I:10.7672/sgjs2015080071 大跨度钢结构局部抽空提升施工力学分析 邹航，徐德号，周国军，娄峰，苏英强 (浙江精工钢结构集团有限公司，浙江绍兴312030) [摘要]合肥南站钢结构工程，屋盖为双向正交正放桁架结构体系，采用分区拼装、分区液压同步提升的安装方案. 提升架基于原有钢骨混凝土柱柱顶设置，屋盖桁架在提升过程中被局部抽空.详细介绍本工程提升施工的计算机 模拟分析，并结合现场实测数据，对比研究了此类大跨度局部抽空结构在提升过程中的受力性能.该提升工序顺 利完成并证明了本文施工分析的合理性. [关键词]钢结构；桁架；提升；局部抽空；施工力学；数值模拟 [中图分类号]TU391 [文献标识码]A [文章编号]1002-8498(2015)08-0071-05 Construction Mechanics Analysis on Lifting of Large-span Steel Structure with Local Pumping out Zou Hang Xu Dehao Zhou Guojun Lou Feng Su Yingqiang Zhejiang Jinggong Steel Building Group)Co.Ltd.Shaoxing Zhejiang 312030 China) Abstract:The steel roof of Hefei South Railway Station applies a bidirectional orthogonal spatial truss structure system which uses segmented assembling and segmented hydraulic synchronous lifting during installation.Lifting frame is set on the top of existing steel reinforced concrete columns and roof truss is partially pumped out in the lifting process.The simulation was introduced in detail and according to the actual data on site it gave parative study on mechanical behaviors of such large-span partial pumping out structures.The success of lifting process in this project proves the practicality of the installation analysis in this thesis. Key words:steel structures;trusses;lifting;local pumping out;construction mechanics;simulation 0引言 框架结构上部双向受力钢桁架屋盖结构. 随着大跨度结构的增多，传统的钢结构高空原 钢屋盖采用双向正交正放桁架结构，桁架结构 位散装的施工技术在一些结构中并不是非常适用，平面投影为矩形，最高点高度37.2m 最低点 会产生工人工作条件危险、安装效率低等问...
2014年7月下 施工技术 第43卷第14期 CONSTRUCTION TECHNOLOGY 33 D0I:10.7672/sgjs2014140033 大跨度钢桁架穹顶组合网壳设计施工关键技术 陈桥生，潘荣娟，金平，赵奋 (上海宝冶集团有限公司，上海200941) [摘要]钢桁架弯顶组合网壳作为一种新型的网壳结构，采用主骨架和次结构的结构分布形式，受力合理，造型优 美，具备了很强的空间跨越能力.但由于此种结构形式复杂，且可能伴随着预应力拉索的大量应用，导致其施工过 程较为复杂，施工精度控制与技术要求高，施工难度大.以绍兴金沙东方山水国际商务休闲中心为例，介绍了大 跨度钢桁架穹顶组合网壳的设计施工关键技术. [关键词]钢结构；桁架；弦支穹顶；网壳；深化设计；施工技术 [中图分类号]TU758;TU391 [文献标识码]A [文章编号]1002-8498(2014)14-0033-05 Key Technology During the Design and Construction of Large-span Compound Spherical Lattice Shell of Steel Truss and Dome Chen Qiaosheng Pan Rongjuan Jin Ping Zhao Fen Shanghai Baoye Group Co. Ltd.Shanghai 200941 China) Abstract:As a new-type latticed shell structure the steel truss and dome pound spherical lattice shell adopts distribution form of the main backbone structure and sub-structure.It has sufficient space span capability with reasonable mechanical behavior and appealing design.But due to its plicated structure and maybe along with a lot of application of prestressed cable relatively plicated construction process is caused as well as high construction precision control and technical requirements and huge construction difficulties.Taking Shaoxing Jinsha Orient Sunseed International Business and Leisure Center as an example this article introduces the key technologies during the design and construction of large-span pound spherical lattice shell of steel truss and dome. Key words:steel structures;trusses;suspendome;shells;detailed design;construction. 1工程概况 绍兴金沙东方...
施工技术 2017年8月上 34 CONSTRUCTION TECHNOLOGY 第46卷第15期 D0I:10.7672/8js2017150034 大跨度空间管桁架分区连续累计卸载施工技术 陈海峰，刘晓伟，吴先杰，夏伟东，张树鹏 (中建三局第一建设工程有限责任公司，湖北武汉430040) [摘要]马鞍山通航枢纽试验厅项目采用大跨度空间管桁架结构，桁架安装采用地面拼装、高空安装的方法进行， 桁架安装时需在地面设置临时支撑.考虑工期及成本因素，桁架卸载采用“分区连续累计卸载”的施工工艺，并通 过MIDAS/Gen受力软件对其安全性与可靠性进行验证.桁架卸载时通过调节千斤顶的行程实现分区内同步、区 间连续卸载并全程进行测量监控.该卸载技术在节约工期及成本方面效果显著. [关键词]钢结构；管桁架；分区；卸载；施工技术 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2017)15-0034-04 Construction Technology of Partial Continuous Cumulative Unloading of Large-span Space Pipe Truss CHEN Haifeng LIU Xiaowei WU Xianjie XIA Weidong ZHANG Shupeng (China Construction Third Bureau First Engineering Co.Ltd.Wuhan Hubei 430040 China) Abstract:Maanshan navigation project adopts a large-span space pipe truss structure.The truss installation adopts the method of assembling on the ground and installing at high altitude.The truss installation needs temporary support on the ground.Considering the time limit and cost factors the truss unloading applies the construction technology of‘partial continuous accumulative unloading' and the safety and reliability are verified by the MIDAS/Gen software.The truss unloading is realized by adjusting the stroke of the jack to achieve synchronous unloading in the partition and continuous unloading between the partitions while monitoring the entire process.The unloading technology has obvious advantage in saving time and cost. Key words:steel structures;pipe truss;partition;unloading;construction 0引言 度21.35m 上部钢桁架支撑于下部混凝土柱上.屋 随着国...
[关键调】混凝土；空心楼板；缓黏结预应力；施工技术；研究 [中图分类号】TU378[文献标识码】A【文章编号】1002-8498(2015)01-0120-04 Studyon theKeyTechnologies ofLarge-spanRetard-bonded Prestressed HollowFloor Li Linlin,Han Youqiang,Li Feng （The Third Construction Engineering Co.，Ld.of China Construction Second Engineering Bureau,Beijing 100070，China） Abstract:The technology of retard-bonded large hollow floor bined with the technical features of retard-bonded prestressed technology and hollow floor Technology.It has technical advantages on mechanical properties and construction techniques.But it is slightly different from the traditional unbounded hollow floor on the construction and design. The key technologies of retard-bonded prestressed hollow floor are analyzed in this paper based on engineering practice and its technical characteristics. Key words:concrete;hollow floor;retard-bonded prestressing; construction; study 0引言在大跨度结构中的应用，分析了其优势，并重点对 近10年来随着工程技术水平的大幅提升和个其中几项关键技术进行了研究。
[关键词】钢结构；球节点；桁架；预应力；索；安装 [中图分类号】TU758.11 [文献标识码]A [文章编号】1002-8498（2012)14-0162-04 InstallationTechnologyforLarge-spanStringTrusswith WeldedBallJointandPrestressedCables Li Yonghong,Fan Yunpeng (China Contruction 6th Engineering Bureau Industral Equipment Installtion Co. , Ld. , Tianjin 300451, China) Abstract;String Truss is a kind of structure with self-balanced internal stress . The Physical Model Test Building (PMTB） in Yellow River Estuary used string truss with welded ball joint. The structure consisted of radial main truss and circumferential auxiliary truss. The fabrication of grid unit, hoisting and assembling of main truss at high altitude, and the installation of prestressed cable are analyzed. The installtion of prestressed cableused several technologies such including cable hanging up,cable passing, cable vertical lifting and point-wise location.It is pointed out that the selection of technology should consider different situations and environments. Key words;steel structures; ball joint; trusses; prestressing; cables; installation 大跨度张弦网架结构作为一种新兴的结构形 为1600t。
施工技术 2015年8月上 32 CONSTRUCTION TECHNOLOGY 第44卷第15期 D0I:10.7672/8js2015150032 大跨度框架结构施工期活荷载现场调查与统计分析* 简超军，胡长明，叶正武，袁一力，刘阳 (西安建筑科技大学土木工程学院，陕西西安710055) [摘要]结合某大跨度框架结构工程，对其施工期的活荷载进行了调查统计，统计时间贯穿该建筑物的整个建造 期.重点调查统计了施工中的模板搭设、钢筋绑扎混凝土浇筑和混凝土养护期4个阶段的堆载情况.结合工程实 际划分3mx2m的统计网格，通过现场调查和统计分析，认为施工活荷载服从指数分布，计算出了分布函数的参 量，给出了施工期施工活荷载标准值的建议值. [关键词]混凝土；框架结构：施工期活荷载：现场调查；统计分析 [中图分类号]TU312.1 [文献标识码]A[文章编号]1002-8498(2015)15-0032-03 In Situ Investigation and Statistical Analysis of Live Loads of Large Span Frame Structure During Construction Jian Chaojun Hu Changming Ye Zhengwu Yuan Yili Liu Yang (School of Civil Engineering Xi’an University of Architecture and Technology Xi'an Shaanxi7l0055 China) Abstract:Combining with a large span frame structure project a survey on live loads of this building has been conducted.The survey lasted the whole construction period of the building.The loads in the four phases of formwork reinforcement concrete pouring and curing were recorded.According to the actual situation of the building divided the floor plan into 3m x 2m grid.Based on the result of survey and statistical analysis it is found that the live loads submit to exponential distribution.And the parameters of exponential function were estimated the standard value of live loads during construction was also suggested. Key words:conerete;frame structures;live loads during construction;in situ investigation; statistical analysis 0引言 查，以向容器中注水的办法着重模拟分析了混凝土 混凝土结构的失效风险率在结构的建造、使用 浇筑时产生的冲击荷载，发现最大荷载可达50kN/ 和老化阶段是不同的，在结构的...
施工技术 2016年7月下 120 CONSTRUCTION TECHNOLOGY 第45卷第14期 D0I:10.7672/8js2016140120 大跨度放射状悬挑钢屋盖高空测量监测技术 惠文军，王晓红 (中建三局集团有限公司，湖北武汉430074) [摘要]以武汉新能源研究院工程为背景，通过建立三维有限元模型，进行全面静力分析，从整体上验证方案的可 行性并进行优化.根据模型计算的变形结果对结构进行适当预调节.施工过程中加强变形控制措施，确保了大跨 度大悬挑放射状花冠钢屋盖高空安装达到设计要求的造型及精度. [关键词]高层建筑；钢结构；悬挑：钢屋盖；测量；监测 [中图分类号]TU393.3 [文献标识码]A [文章编号]1002-8498(2016)14-0120-04 High Altitude Measurement and Monitoring Technology for Long Span Radial Cantilever Steel Roof Hui Wenjun Wang Xiaohong China Construction Third Engineering Bureau Group Co.Ltd.Wuhan Hubei 430074 China) Abstract:Based on the project of Wuhan New Energy Research Institute a three-dimensional finite element model is established and the feasibility of the scheme is verified and optimized.The structure is adjusted appropriately according to the deformation results of calculation model.The deformation control measures are strengthened in the construction process which ensures the large span and large cantilever rayed flower heads of the steel roof of high-altitude installation design requirements of modeling and the accuracy is reached. Key words:tall buildings;steel structures;steel roofs;measuring;monitoring 1工程概况 工程主塔楼地下1层，地上17层，建筑总高度 武汉新能源研究院工程（见图1）位于武汉未来为127.9m 框架-核心筒屋顶钢桁架组合结构，屋 科技城区城市中心，包括主塔楼和5栋研发楼，主塔架钢结构安装高度为68.75~110m 整体倾角约 楼以马蹄莲为设计理念，寓意“武汉新能源之花”， 24°，呈莲花形斜向布置，主要受力体系为中心支座 是一座能合理利用水、风、太阳能等自然资源的低 24榀屋桁架主桁架的组合桁架结构，其由系 能耗无污染清洁生态建筑，是武汉市新能源产业发 杆、支撑连接而成，材质为Q345B 最大截面450× 展的技术创新源和重要技术支撑平台，华中地区最 20 管间相贯焊接，24榀主桁架呈放射状形似花瓣 大的可再生能源研发中心. 向四周展开，最大悬...
施工技术 2010年7月 40 CONSTRUCTION TECHNOLOGY 第39卷第7期 大跨度张弦网架结构关键施工技术 余流，杜澎泉 (中国建筑第六工程局有限公司，天津300451) [摘要]黄河口物理模型试验厅设计新颖、造型独特、规模宏大.其中海城B厅采用张弦网架结构，跨度达148m 为同类结构世界之最.施工技术含量高、难度大.基于工程实践，介绍大跨度张弦网架结构关键施工技术，包括焊 接球节点网架段单元加工与制作、大跨度张弦网架高空安装与微调就位、巨型预应力钢索张拉与控制等.结果表 明：该施工技术切实可行，可大大缩短工期、降低施工成本，保证施工质量和安全，具有良好的经济效益和社会效 益. [关键词]大跨度；张弦网架；施工技术 [中图分类号]TU745.2[文献标识码]A[文章编号]1002-8498(2010)07-0040-04 Key Construction Technology on Large Span Truss String Structure Yu Liu Du Pengquan China Construction Sisth Engineering Dipision Co. Led.Tianjin 300451 China) Abstract:The architectural feature of the physical model test building (PMTB)in Yellow River Estuary is novel and distinctive.Its size is very large.The truss string structure is adopted by the PMTB and it is the largest span truss string structure in the world whose span is 148-meter long.So it is very difficult to be built.Key construction technology such as fabricating of welded-ball-node grid unit and hoisting assembling of large span truss string structure at high altitude and tensioning controlling of large pre- stressed steel cable is presented.The results show that the technology is feasible and it can shorten the construction period reduce the construction cost ensure construction quality safety and result in good economic and social benefits. Key words:large span;string truss;construction technology 张弦结构作为一种新型的结构形式，近年来在实 海城A厅 际工程中得到越来越广泛的应用.其结构体系由抗弯 刚度较大的刚性构件和高强度拉索组成，自重较轻，可 以跨越很大空间.张弦结构作为一种半刚性结构，其 整体刚度由刚性构件截面尺寸和结构体系的空间几何 河道厅 海域日厅 形体两方面共同组...
施工技术 2010年2月 24 CONSTRUCTION TECHNOLOGY 第39卷第2期 大跨度屋面钢网架（壳）结构施工技术 汪道金，普繁娜2 (1.中国新兴建设开发总公司，北京100039；2.河南省建筑工租质量监督总站，河南郑州450003) 【摘要]基于北京奥运会老山自行车比赛馆工程和北京科技大学体育馆工程，介绍焊接球形网壳屋面利用拔杆接 力转换提升技术、大型螺栓球网架结构整体提升技术在工程施工中的应用.重点阐述施工工艺、应力应变监测、质 量控制等关健技术.结果表明，该两项大型体育场馆工程新技术适用于施工场地狭小、安装困难、条件差的情况. 同时，工期短、造价低，保证施工质量和安全. [关键词]钢结构；球形网壳；整体提升 [中图分类号]TU745.2 [文献标识码]A [文章编号]1002-8498(2010)02-0024-03 Construction Technology of Large-span Steel Grid (Shell)Structure Wang Daojin' Zeng Fanna2 (1.China Xinxing Construction Development General Co.Beijing 100039 China; 2.He'nan Construction Quality Superuision General Station Zhengzhou He'nan 450003 China) Abstract:Based on the engineering examples including Laoshan Velodrome in Beijing Olympic and Beijing Science and Technology University Gymnasium the application of lifting technology is introduced such as relay conversion technology by pull bars of welding-spherical shell integral lifting technology of large bolt-sphere grid.The key technologies are outlined including construction technology monitoring stress and strain quality control and so on.The results show that these technologies about gymnasium engineering are applicable to bad conditions such as narrow construction site and difficult installation.Besides there are advantages of short period low cost which can ensure construction quality and safety. Key words:steel structure;spherical shell;integral lifting 近年来，随着我国建筑业的发展，钢结构建筑越来大高度35m 由8052根杆件和1675个焊接球组成，单 越高、规模和跨度越来越大、造型也越来越复杂，普通件最大截面尺寸19m×12m 网壳...
施工技术 2016年4月下 64 CONSTRUCTION TECHNOLOGY 第45卷第8期 D0I:10.7672/8js2016080064 大跨度双曲面管桁架钢结构屋盖 施工受力性能研究 徐琳1，张军2 (1.江苏工程职业技术学院建筑工程学院，江苏南通226007； 2.江苏中南建筑产业集团有限责任公司，江苏南通226100) [摘要]淮安体育馆钢结构屋盖是由双曲面桁架钢管拱及桁架拱之间的连接桁架组成的折板体系，屋盖以桁架钢 管拱为主要受力结构，钢结构屋盖采用分段吊装施工方法，通过有限元方法对吊装施工过程进行数值模拟分析，验 算桁架在吊装过程中支架和主体结构的安全性. [关键词]体育馆；钢结构；屋盖；安装；数值模拟 [中图分类号]TU323.4[文献标识码]A[文章编号]1002-8498(2016)08-0064-03 Study on Mechanical Performance of Steel Roof Construction with Large-span Hyperbolic Truss Xu Lin' Zhang Jun (1.School of Ciril Engineering Jiangsu College of Engineering and Technology Nantong Jiangsu 226007 China; 2.Jiangsu Zhongnan Architecture Industry Group Co.Lid.Nantong Jiangsu 226100 China) Abstract:The steel roof of Huaian Gymnasium is a folding system posed of hyperbolic truss steel tube arch and connecting truss between arch.Of which the truss steel tube arch is main force structure.The steel roof applied segmental hoisting construction meanwhile finite element analysis was used to simulate the hoisting processing to check the safety of support frame and main structure. Key words:gymnasiums;steel structures;roofs;installation;simulation 1工程概况 级，结构重要性系数y=1.1.屋盖主结构如图2 淮安体育馆钢结构屋盖是由双曲面桁架钢管 所示. 拱及桁架拱之间的连接桁架组成的折板体系，最大 跨度为119.53m 弯曲矢高30.4m 工程效果如图1 所示. UUU 图2屋盖主结构轴测图 Fig.2 Isometric drawing of the roof main structure 图1淮安体育馆 2屋面钢结构安装方法 Fig.I Huaian Gymnasium 根据钢屋盖结构的特点.提出了高空分单元 屋盖桁架和拱构件均为钢管截面，包括2四 拼装的总体安装方法，即在硬化后的地面上设拼 弦杆大跨度空间双曲管桁架结构和10榀两弦杆 装胎架现场拼装，空间双曲管桁架和平面拱桁架 平面拱桁架，屋面檩条为H型钢结构.结构设计 均在地面整体组装焊接完成，拆分成若干吊装单...
施工技术 2016年11月上 66 CONSTRUCTION TECHNOLOGY 第45卷第21期 D0:10.7672/sgj52016210066 大跨度双层空间椭球面钢网壳结构综合施工技术 武兵，周春勇 (北京城建二建设工程有限公司，北京100039) [摘要]江西省赣州市于都县体育中心体育馆及训练馆工程是典型的大跨度双层空间高低跨椭球面网壳钢结构， 运用专业软件建立三维空间模型进行力学分析、模拟计算、出图下料、精确制作等，实现了设计外观及功能要求；同 时，采用了螺栓球、焊接球两种节点和长短不一的杆件与侧墙桁架结合，对网壳结构体系、安装进行了深人研究，并 通过方案对比及各条件因素分析，采用高空分单元原位散拼的施工技术，攻克了在安装过程中遇到的诸多技术 难题. [关键词]钢结构；网壳；螺栓球；焊接球；安装；施工技术 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2016)21-0066-05 Comprehensive Construction of Large-span Double Layer Space Ellipsoid Reticulated Shell Wu Bing Zhou Chunyong (The Second Urban Construction Engineering Company of Bejing Beijing 100039 China) Abstract:The gymnasium and training hall of Yudu Sports Center in Ganzhou Jiangxi apply typical large-span double layer space and high level span elliptical steel shell structure.Professional software is used to build three-dimensional spatial model for mechanical analysis simulation drawing accurate production ete. to achieve the design of the appearance and functional requirements.The two kinds of bolt ball and welding ball bined with the different length bars and side wall truss are applied for design.Meanwhile the reticulated shell structures and installation are studied in detail.And through the parison of the scheme and the analysis of the conditions the construction technology of the high altitude sub unit is adopted which overes many technical difficulties encountered in the installation process. Key words:steel structures;shells;bolt ball;welding ball;insta...
【关键词】钢结构；球幕；球形网壳；安装；支撑 [中图分类号】TU758.11 [文献标识码]A [文章编号】1002-8498（2014)14-0145-04 Installation Technology ofLarge-span Double-layerIrregularSpatialSphere-shellSteelStructure (1.School ofCivilEngineering，Shenyang JianzhuUnitersity,Shenyang，Liaoning110168,China； 2.CiilConstructionOffcefLioningProince,Shenyang，Liaoningl10005,China； 3.Jiangsu Huning Steel Mechanism Co.,Lad.,Yixing,Jiangsu 214231,China) Abstract:The structure form of the ball screen in the new building of Liaoning Science Museum is large- span double-layer irregular spatial spherical-shell structure.The project has the characteristics of extensive members and joints,large space curved surface，plex space angle，high-quality installation，extensive full-penetration joints，workload-intensive welding，and cross-construction with other engineering project.This paper takes Liaoning Science Museum as an example，through the steel structure project of spherical cinema in this museum，focusing on the analysis of the installation technology of large-span double-layer and irregular spatial spherical-shell structure.According to the engineering characteristics，the steel structure was divided into units，which were installed separately through seting temporary supports.The construction practice shows that this technology can meet design requirements and isreasonable. Key words;steel structures; ball screen; spherical shell; installation; supports 1工程概况 辽宁省科技馆工程位于沈阳市浑南新城内，项 目规划建设用地面积为69100m²；总建筑面积为 107819m²，其中地上建筑面积为84372m²，地下建 筑面积为23447m²。
[关键词]桁架；预应力；大跨度；制作；安装；张拉 [中图分类号]TU758 [文献标识码】A [文章编号】1002-8498（2013)20-0017-04 Key Construction of Large-span Internal Prestressing Truss Structure Yu Liu'²，Zhang Siqian² （1.China Construction Sixth Engineering Division Co.，Ld.，Tianjin 300451,China; 2.Schoolof Civil Engineering，Hebei University ofTechnology，Tianjin 300401，China) Abstract:The architectural feature of hydrodynamic laboratory for Tianjin Research Institute for Water Transport Engineering （TIWTE） is distinctive and has grand scale.The internal prestressing truss structure is adopted by the TIWTE and it is the largest span internal prestressing truss structure in China, whose span is 99 meters.Key construction technology of large-span internal prestressing truss structure was introduced,such as fabricating and hoisting and assembling of welded-ball-joint truss unit at high altitude and tensioning and controlling of long steel wires， etc. The application of this technology can greatly shorten the construction period，reduce the construction cost and ensure the construction quality and safety. Key words;trusses;prestressing;large-span;fabrication; installation; tensioning 1工程概况 天津水运工程科学研究所大型水动力实验室 内河综合 （一期）钢结构工程由海域综合试验厅和内河综合 试验厅 试验厅两部分组成，呈对称分布，结构跨度99m，长 海域综合 度440m（见图1）。
[关键词]安装工程；钢结构；塔式起重机；大级差；施工技术 [中图分类号]TU758.1[文献标识码]A[文章编号]1002-8498（2016）03-0107-04 Overweight Components 85 Meters Hoisting Technology with Large-differentialGradesTowerCranes Xu Jian,Jiang Shaoping,Guo Haoxin （China Construction First Engineering Division Co.，Lud.，Beijing100073，China）
the max horizontal ponent lifting distance is85meters，beyond the tower crane lifting range and part of columns cannot be segmented.Limited to working condition of tower crane，partial frame columns cannot be normal hoisting.Through the use of the existing resources in the field，with luffing jib tower crane L500 and tower crane TC6010 as auxiliary and the use of chain and cable wind rope traction， lifting tasks are safely smoothly finished.The construction site conditions and differentials crane lift hanging difficultiesareanalyzedand thefeasibilityof constructionscheme andsafety controlpoints are expounded in detail. Key words:installation； steel structures; tower cranes; large-differential grades; construction 1工程概况KZ9（见图2）。
[关键词]地铁；轨道交通；桩基础；钻孔灌注桩；旋挖钻；施工技术 [中图分类号]U445.551 [文献标识码]A[文章编号】1002-8498（2015)23-0059-02 Construction Technology of Bored Piles in Large Particle ErraticBoulderStratum Ding Zhenming,Liao Qiulin,ShanXiaofeng (Beijing Urban Construction Design&Development Group Co.，Ld.，Bejing100088,China) Abstract:The pile of a long viaduct of Beijing Yanjiao-Fangshan Line focuses on bored pile，the pile must pass through cobble layer containing erratic boulder. The pile drilling easily causes following problems: Drilling pile construction diffculty, inclined offset of hole, drillpipe sticking, collapse of bored hole sidewall,overbreak.According to engineering practice of technology of rotary excavator drilling in large particle erratic boulder stratum，the construction schemeis optimized from the aspects of drill bit performance analysis and erratic boulder drilling and so on. Key words:subways;rail traffic;piles;bored pilesauger drill;construction 1工程概况 由于勘察钻孔直径较小，遇到不同卵石粒径的 北京轨道交通燕房线位于北京市房山区，线路大小卵石影响：首先是出现钻进跑偏，进而对卵石 位于山区及冲洪积扇上，并且跨越大石河流域，地破碎积累，再而从卵石中心类似基岩钻进。