施工技术 2012年10月下 68 CONSTRUCTION TECHNOLOGY 第41卷第375期 黄石体育馆钢屋盖空间折板斜交网格综合施工技术 曾智明,钟新国,周文浩',张宝燕,黄亮,黄敬君2 (1.中建三局第一建设工程有限贵任公司,湖北武汉430040;2.黄石市政府投资项目代建公司,湖北黄石435000) [摘要]空间折板斜交网格结构是一种独特的空间结构,是由三角形平板网格按规律组合而成,具有造型丰富、排 水方便、用钢量少等优点.黄石体育馆屋盖钢结构由43个三角形折板板片组成,折板板片相交形成脊线主梁,脊 线主粱交汇形成汇交节点,次梁由双向斜交网格梁构成.主次梁均为箱形截面,为全焊接结构,采用支撑胎架 高空原位拼装的方式施工.重点介绍了计算机仿真安装技术、节点加工技术、支撑胎架设计以及钢节点滑移技术. 指出结构卸载过程中,要实时监测变形和应力的变化. [关键词]体育馆;钢结构;屋盖;折板;斜交;网壳;施工技术 [中图分类号]TU758.1 [文献标识码]A [文章编号]1002-8498(2012)20-0068-04 Comprehensive Construction of the Spatial Folded Plate Oblique Crossing Shells of the Steel Roof Coverings in Huangshi Gymnasium Zeng Zhiming' Zhong Xinguo' Zhou Wenhao' Zhang Baoyan' Huang Liang' Huang Jingjun? (1.The First Construction Engineering Limited Company of China Construction Third Engineering Bureau Wuhan Hubei 430040 China;2.Huangshi Government Investment Substitute Construction Company Huangshi Hubei 435000 China) Abstract:The spatial folded plate oblique crossing shells structure is a unique structure which is triangle plate shells assembled with certain rules.This structure has the characteristics of abundant shapes convenient drainage and low cost of steel.The steel roof coverings of Huangshi Gymnasium consist of forty three triangle folded plates.The intersections of these plates form the main beams and intersections of the main beams form the joints.The secondary beams are bidirectional oblique crossing shell beams.All the main and secondary beams are fully welded box-shaped sections which...
施工技术 2012年10月下 72 CONSTRUCTION TECHNOLOGY 第41卷第375期 黄石体育馆钢屋盖异形节点滑移安装技术 梁嘉文,王远,钟新国,邓先磊,曹正平 (中建三局第一建设工程有限责任公司,湖北武汉430040) [摘要]黄石体育馆钢屋盖为空间折板式斜交网格结构,脊线主梁由钢箱梁构成,交汇节点采用钢板节点.钢屋盖 核心部位的ZGJ-1节点连接12根主梁,塔式起重机无法将其直接吊装到位.经过方案比选,采用搭设栈桥、滑移安 装的方案.介绍了钢节点制作、滑移栈桥桁架制作安装、滑移小车制作、钢节点固定等工艺,取得了良好的社会效 益与经济效益. [关键词]体育馆;钢结构;屋盖;异形节点;安装;滑移 [中图分类号]TU758.1 [文献标识码]A[文章编号]1002-8498(2012)20-0072-03 Sliding Installation Technology of the Special-shaped Joint of Steel Roof Coverings in Huangshi Gymnasium Liang Jiawen Wang Yuan Zhong Xinguo Deng Xianlei Cao Zhengping (The First Construction Engineering Limited Company of China Construction Third Engineering Bureau Wuhan Hubei 430040 China) Abstract:The steel roof coverings of Huangshi Gymnasium are spatial folded plate oblique crossing structure.The main beams are steel box-shaped beams whose joints are steel plate joints.The joint of ZGJ-1 in the core of the steel roof coverings connects twelve main beams and the tower crane can not hoist them to the accurate position directly.By parison and selection of the installation schemes the scheme of setting trestle for sliding was applied.The technologies of fabricating steel joint fabricating and installation of the sliding trestle trusses fabricating sliding trolley and fixing steel joints are introduced.Excellent social and economic benefits were gained. Key words:gymnasiums;steel structures;roof coverings;special-shaped joint;installation;sliding 1工程概况 钢节点ZGJ-1安装高度31.05m 现场3号塔式 黄石体育馆钢屋盖为空间折板式斜交网格结起重机的起吊半径为38m(塔式起...
施工技术 2011年12月上 78 CONSTRUCTION TECHNOLOGY 第40卷第354期 黄杨泵站取水头部施工方案研究 吕其刚,徐海艳,彭军 (中国市政工程中南设计研究总院,潮北武汉430010) [摘要]对珠海市黄杨泵站取水工程中的施工技术方案进行了分析,针对不足之处结合工艺条件提出了优化设计 方案.详细介绍了优化方案中的顶管法施工、水下开挖段管道设计和钢制取水头部设计,并结合工程实践对类似 工程的施工提出建议.工程实践表明:这些施工技术的应用不仅缩短了工期、节省了投资而且降低了施工难度. [关键词]泵站;取水头部;顶管;抗浮;注浆;监测 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2011)23-0078-03 Study on Construction Schemes of Water Intake Head in Huangyang Pumping Station LǜQigang Xu Haiyan Peng Jun (Central and Southern China Municipal Engineering Design Research Institute Wuhan Hubei 430010 China) Abstract:Authors analyze construction schemes of water intake project of Huangyang pumping station in Zhuhai and propose optimization scheme according to the disadvantages bined with process conditions.Pipe jacking method design of pipe under water excavation and steel water intake head are introduced in detail.Meanwhile authors give advices for the similar projects bined with this project. Engineering practice shows that application of these methods not only save cost and shorten construction period but also decrease the difficulty of construction. Key words:pumping stations;water intake head;pipe jacking;anti-floating;grouting;monitoring 取水头部是水厂的重要组成部分,作为特种水 下结构,头部建筑的基本设计特点是:①工程设计 黄杨河 因地而异,几乎各不相同;②水域环境复杂、施工条 上并公路 DN2200.长度约360m 件各异;③施工费用昂贵且施工难度较大.为此, N2200.长度约360架式取水头部 黄杨河 头部结构设计必须因地制宜,合理选型与布置,才 能做到技术可靠、经济合理、施工安全简便. 图1取水工程平面布置 1工程橱 Fig.1 Layout of water intake project 珠海市乾务水厂黄杨泵站位于珠海市斗门区,2工程及水文地质条件 设计规模为100万m3/d.泵站厂址位于上井公路 拟建场地土类型为软弱场...
2017年7月上 施工技术 第46卷第13期 CONSTRUCTION TECHNOLOGY 95 D0I:10.7672/8js2017130095 黄土击实过程中土压力的变化研究* 商玉洁1,李婕1,白晓红12.3 (1.太原理工大学建筑与土木工程学院,山西太原030024:2.黄土地区公路建设与养护技术交通行业重点实验室, 山西太原030006;3.岩土与地下工程山西省重点实验室,山西太原030024) [摘要]用常规击实方法制备两种击实能下的压实黄土土样,比较两种不同击实能下的击实曲线,得到最优含水 量.利用改进的击实仪,通过在土层中埋设土压力盒,测试了击实过程中土中压力的大小,研究了随含水量和击实 能的变化黄土击实过程中土压力的变化规律. [关键词]地基:黄土;含水量:击实能;土压力;试验 [中图分类号]TU411.3 [文献标识码]A [文章编号]1002-8498(2017)13-0095-03 Study on the Change of Soil Pressure in Process of Loess Compaction SHANG Yujie' LI Jie' BAI Xiaohong.2. (1.School of Architecture and Ciril Engineering Taiyuan University of Technology Taiyuan Shanxi 030024 China; 2.Key Laboratory of Highcay Construction and Maintenance Technology in Loess Area Taiyuan Shanxi 030006 China; 3.Shanxi Key Laboratory of Geotechnical and Underground Engineering Taiyuan Shanxi 030024 China) Abstract:Compaction loess samples were prepared under different paction energy by normal paction methods paction curves under two different paction energy were pared and the optimal water content was obtained.The soil pressure box was buried in the soil and pressure was tested in the process of paction by the improved paction device.The soil pressure variation in the process of loess paction was researched under different water content and paction energy. Key words:foundations;loess;water content;paction energy;soil pressure;tests 0引言 分层埋设土压力盒与位移计,以记录路基模型内不 黄土常用于建筑物回填地基和公路、铁路路堤 同位置的土压力和变形量;冯世进等[9]专门设计了 的填筑等,这些工程用到的黄土改变了天然黄土原 半模试...
施工技术 2013年9月上 34 CONSTRUCTION TECHNOLOGY 第42卷第17期 D0I:10.7672/sgjs2013170034 风险型建设管理与联营公司管理组合 模式在广州PZB1401项目中的应用 江建平,张一弓,李学劲 (深圳中海建筑有限公司,广东深圳518057) [摘要]广州PZB1401项目是一个大型复杂的港资项目.为了更好地适应内地的建设环境,整合多方的优质资源, 满足特定的目标与需求,介绍了参建主体结成新型的合作伙伴关系,即采用风险型建设管理的模式,签订MP合 约,并成立联营公司来确保这两者的实现.在风险型建设管理与联营公司管理的组合模式下,项目部对各项管理 工作进行制度创新,能够更好地满足新模式要求. [关键词]项目管理:建设管理:GMP合约 [中图分类号]TU714 [文献标识码]A [文章编号]1002-8498(2013)17-0034-04 Application of Combination Model of Risk Type Construction Management and Joint Company Management in Guangzhou PZB1401 Project Jiang Jianping Zhang Yigong Li Xuejin China Overseas(Shenzhen)Construction Co. Ltd.Shenzhen Guangdong 518057 China Abstract:Guangzhou PZB1401 project is an Hongkong investment project which is large and plex.In order to adapt to the Mainland's construction environment to integrate the quality resources of multiparty and to meet the specific goals and needs the main body who participates in the project forms a new-type partnership as to utilizing the risk type construction management model signing GMP contract and establishing a joint pany to ensure the realization of the model and contract.Under the bination model of the risk type construction management and joint pany management the project department conducts system innovation of the management work in various fields so as to meet the requirements of the new model better. Key words:project management;construction management;GMP contract 为了共同的商业目的,最大限度和高效地利用地子公司深圳中海建筑有限公司(以下简称“中海 公司资源与技术,两家或多家公...
施工技术 2017年3月下 102 CONSTRUCTION TECHNOLOGY 第46卷第6期 D0I:10.7672/sgjs2017060102 顶管施工用新型膨润土与聚合物润滑减 阻浆液的性能研究* 贾丽洲1,王伟山2,郑柏存1 (1.华东理工大学,上海200237;2.上海建筑外加剂工程技术研究中心,上海200232) [摘要]顶管施工中润滑减阻可有效降低顶机负荷,提高推进效率.选取6种聚合物作为泥浆性能调节剂,系统研 究聚合物种类与掺量对浆液性能的影响.结果表明,羧甲基纤维素(CMC)、黄原胶和2-丙烯酰胺-2-甲基丙磺酸- N N-二甲基丙烯酰胺共聚物(AMPS-NNDMA)可有效提高泥浆性能.其中CMC能有效提高泥浆黏度,黄原胶能有 效提高泥浆抗滤失性能,而AMPS-NNDMA的综合性能优良. [关键词]地下工程;顶管;注浆;润滑减阻;膨润土 [中图分类号]TU502 [文献标识码]A [文章编号]1002-8498(2017)06-0102-04 Research on Novel Polymer and Bentonite Slurry's Properties Used in Pipe Jacking for Lubricating and Drag-reducing Jia Lizhou' Wang Weishan2 Zheng Baicun' (1.East China University of Science and Technology Shanghai 200237 China: 2.Shanghai Engineering Research Center for Construction Admixtures Shanghai 200232 China) Abstract:In the pipe jacking construction the lubricating and drag-reducing injecting slurry can reduce the load of the jacking machine and enhance the propulsion efficiency.Six kinds of polymer were selected as slurry performance regulator the influence of polymer type and content on slurry properties was systematic studied in this paper.As a result carboxyl methyl cellulose CMC) xanthan gum and 2- Acrylamido-2-Methyl Propane Sulfonic Acid-N N-Dimethyl Acrylamide AMPS-NNDMA)can improve the slurry performance effectively.Particularly system's viscosity was enhanced by CMC’s addition while xanthan gum's addition improved the fluid loss-resistance property of the system.And the system with AMPS-NNDMA's addition had an excellent over...