2013年4月下 施工技术 第42卷第8期 CONSTRUCTION TECHNOLOGY 21 D0L:10.7672/sgjs2013080021 钢管柱环梁梁柱节点施工技术* 周志健,王东,杨明,刘飞 (中国建筑第八工程局有限公司天津分公司,天津300452) [摘要]天津于家堡金融区起步区03-04地块工程地下室钢管柱环梁梁柱节点共206个,施工中通过优化节点并借 鉴梁柱节点加腋做法综合分析后,采用钢管柱环梁梁柱节点四边形加腋做法施工达到了设计要求,节约了施工工 期、提高了施工质量,取得了良好的经济效益和社会效益,重点介绍了钢管柱环梁梁柱节点四边形加腋施工工艺. [关键词]组合结构;钢管柱;环梁;节点;施工技术 [中图分类号]TU375.41 [文献标识码]A [文章编号]1002-8498(2013)08-0021-03 Construction of Steel Tube Column and Ring Beam Joints Zhou Zhijian Wang Dong Yang Ming Liu Fei Tianjin Branch China Construction Eighth Engineering Division Co. Lid.Tianjin 300452 China) Abstract:The plot 03-04 project in Yujiapu Financial District Tianjin has 206 steel tubular column and ring beam joints for its basement.By optimizing the joints and performing prehensive analysis with reference to haunch beam-column joints a quadrilateral haunch beam-column joints was applied to meet the design requirement.The construction of the quadrilateral haunch beam-column joints was introduced in detail.This method shortened the construction period improved the construction quality and obtained excellent social and economic benefits. Key words:posite structure;steel tube column;ring beam;joints;construction 1工程概况 工工期,采用四边形梁柱节点大大降低了施工难 于家堡金融区起步区03-04地块工程位于天津度,缩短了施工工期,并保证了钢管柱环梁梁柱节 市滨海新区于家堡金融区,该工程占地面积约3.4点施工质量. 万m2 总建筑面积约19.3万m2 建筑高度60m 地2技术背景 上12层,地下2层.根据建筑造型及使用功能,本2.1社会背景 工程结构形式采用框架多核心筒结构体系,主体结 现在建筑行业通用的钢管柱环梁梁柱节点做 构由8个筒体大跨度桁架梁与周边的钢管混凝土 法均为圆环形,这种做法从施工角度考虑存在着施 柱H型钢梁框架构成.其中地下室部分主要采用 工困难. 钢管混凝土柱钢筋混凝土梁、柱钢骨混凝土构 1)圆形钢...
2014年4月下 施工技术 第43卷第8期 CONSTRUCTION TECHNOLOGY 31 D0I:10.7672/5j52014080031 钢管柱外包环梁预拼装整体吊装技术 刘海东,王伟,孙伟波,陈诚,邓世强 (中建三局集团有限公司,湖北武汉430000) [摘要]华创国际广场工程1号塔楼地下室钢管柱通过外包环梁结构与钢筋混凝土结构连接固定,环梁钢筋加工 及绑扎难度大,且工程体量大、工期紧、质量要求高.针对具体情况,工程采用新型环梁预拼装整体吊装技术,论述 了环梁从施工前的深化设计到使用阶段的相应原理,重点介绍了施工过程中一些注意事项和处理问题的经验方 法.实践表明,应用该新型技术,能够保证环梁成型质量,满足工期要求. [关键词]钢结构;钢管柱;环梁;预拼装;整体吊装;钢筋 「中图分类号1TU758.11 [文献标识码]A [文章编号]1002-8498(2014)08-0031-03 The Pre-assembly and Integral Hoisting Technology for Steel-tube Column with Outer Ring Beam Liu Haidong Wang Wei Sun Weibo Chen Cheng Deng Shiqiang (China Construction Third Engineering Bureau Group Co.Lid.Wuhan Hubei 430000 China) Abstract:The steel-tube column in the basement of the No.1 tower building in Huachuang International Plaza project is connected and fixed with RC structure by wrapping ring beam structure.The reinforcement fabrication and banding of the ring beam is very difficult.The project amount is large the construction period is tight and the quality requirement is high.Based on the practical condition a new ring beam pre-assembly and integral hoisting technology is adopted.This paper discusses principle of the ring beam from detailed design to working stage importantly introduces some attentions during construction and some experience method during problem treatment.The practice shows that the new technology can meet forming quality of the ring beam and construction period requirement. Key words:steel structures;steel-tube column;ring beam;pre-assembly;integral...
2010年4月 施工技术 第39卷第4期 CONSTRUCTION TECHNOLOGY 85 钢管支架用直角扣件抗滑移试验研究 肖炽1,周观根2,杨乾慧3 (1.东南大学土木工程学院,江苏南京210096;2.浙江东南网架股份有限公司,浙江杭州311209; 3.杭州萧山区质量计量监测中心,浙江杭州311202) [摘要]扣件式钢管脚手架用于承重支架时,立杆、水平杆、斜杆相互间用扣件连接.通过对直角扣件施加不同的 扭紧力矩,对新旧扣件进行试验研究,得出扣件螺栓扭紧力矩与抗滑移的关系,并提出抗滑移系数的概念.指出扣 件式钢管支架安装时扣件扭紧力矩必须≥40m;对于新扣件,扭紧力矩增大,抗滑移有一定提高,但对于旧扣件, 容易造成滑丝,不安全.目前市场上T形螺纹质量较差,建议施工前对旧扣件螺栓进行检查. [关键词]钢管支架;直角扣件;抗滑移;试验研究 [中图分类号1TU502.6 [文献标识码]A [文章编号]1002-8498(2010)04-0085-02 Experimental Study on Anti-sliding Performance of Right Angle Fastener Used for Steel Tubular Stent Xiao Chi' Zhou Guan'gen2 Yang Qianhui (1.School of Civil Engineering Southeast Unipersity Nanjing Jiangsu 210096 China; 2.Zhejiang Southeast Space Frame Co.Lad.Hangzhou Zhejiang 311209 China; 3.Xiaoshan Region Quality and Measure Monitoring Center Hangzhou Zhejiang 311202 China Abstract:When fastener-style steel tubular scaffold is as bearing stent upright stanchion horizontal bar and oblique bar are connected by fastener.Through experimental study on new and old fasteners applying different tightening moment on right angle fastener the relationship of tightening moment of fastener bolt and anti-sliding performance is gained and the anti-sliding coefficient is indicated.It is indicated that the tightening moment of fastener must be greater than and equal to4ONm as new fastener anti-sliding performance can improve as tightening moment increase however sliding wire is easy for old fastener. Because of low quality of T-shape thread checking old bolt be...
施工技术 2011年7月上 84 CONSTRUCTION TECHNOLOGY 第40卷第344期 钢管支墩与贝雷梁支架在现浇梁施工中的应用 毕永清 (中铁十七局集团第二工程有限公司,陕西西安710043) [摘要]以厦深铁路大门埠特大桥为例,通过方案比选,梁部施工采用钢管支墩与贝雷梁支架的方案.介绍了孔跨 布置中的注意事项、贝雷梁的布置形式,从荷载的取值、贝雷梁、分配梁受力、钢管支墩以及基础受力等几方面详细 介绍了方案的设计计算过程,提出了施工中的质量和安全控制要点.工程实践表明,该方案取得了良好的社会经 济效益. [关键词]连续梁;跨距;结构设计;布置形式;受力计算 [中图分类号]U445.471 [文献标识码]A [文章编号]1002-8498(2011)13-0084-03 Application of Steel Buttress and Bailey Beam Support Used in Construction of Cast-in-place Beam Bi Yongqing The 2nd Engineering Co.Ltd.of China Railway 17th Bureau Group Corporation Xi'an Shaanxi 710043 China) Abstract:Based on Damenbu bridge of Xiamen-Shenzhen railway steel buttress and bailey beam support are adopted in girder construction.Attentions of span layout arrangement of bailey beam are introduced design calculation process is introduced in detail from load value bailey beam stress of distribution beam steel buttress and stress of basement.Further more author proposes control points of quality and safety in construction.Engineering practice shows that good effect is obtained. Key words:continuous beam;span;structure design;arrangement;stress calculation 1工程概况 6.432m 直线现浇段梁高均为3.832m 箱梁顶板厚 大门埠特大桥是厦深铁路(惠深段)架梁的首0.4~0.69m 底板厚0.5~1m 腹板厚0.5~1.0m. 要通道,其中跨越惠大高速公路连续梁是该桥架梁连续梁结构如图1所示. 工期的控制性工程. 336520026002005000 20026002003365 大门埠特大桥连续梁跨越惠大公路,斜交63°, 中 连续梁结构形式为48m80m48m 中墩为9号和 10号,边墩为8号和11号.连续梁采用钻孔灌注 图1支架现浇连续梁结构 桩基础,承台尺寸9.6m×14.6mx3.0m;边墩承台 Flg.1 The structure of continuous beam 设计为11.1mx6.9mx2.0m 墩身设计全部为双线 2支架结构形式比选 圆端形桥墩. 1)碗扣件支架主...
2016年11月上 施工技术 第45卷第21期 CONSTRUCTION TECHNOLOGY 99 D0I:10.7672/5gj52016210099 钢管托换取代传统换撑方式拆除深基坑内支撑技术 陈洁1,陈为2,李凤伟,刘创3 (1.中建三局集团有限公司(北京),北京100026;2.四川省兴华工程项目管理有限公司,四川成都610000: 3.中建三局集团有限公司大项目管理公司,北京100026) [摘要]某工程工期紧张,其运用钢管托换技术替换传统换撑施工方案,成功换撑、拆撑,克服了常见换撑方式拆除 钢筋混凝土内支撑所引起的施工周期长和人员窝工等弊端,拓展了支护桩钢筋混凝土内支撑在深基坑支护中的 应用优势,效果显著. [关键词]深基坑;支撑;拆撑;钢管托换;支护桩;施工技术 [中图分类号]TU473.2 [文献标识码]A [文章编号]1002-8498(2016)21-0099-04 Technology of Steel Pipe Underpinning Technology to Replace Traditional Demolition of Lateral Bracing of Deep Foundation Excavation Chen Jie' Chen Wei? Li Fengwei' Liu Chuang (1.China Construction Third Engineering Bureau Group Co.Lad.Beijing) Beijing 100026 China; 2.Sichuan Province Xinghua Engineering Project Management Co.Lid.Chengdu Sichuan 610000 China; 3.China Construction Third Engineering Bureau Group Co.Ltd.High-end Management Corporation Beijing 100026 China) Abstract:Because of limit period a project applied steel pipe underpinning technology to replace traditional demolition scheme which overe the disadvantages caused by the mon way in supporting to demolish the lateral bracing of the reinforeed concrete such as long construetion period and work stoppages.This technology expands the application advantage in deep foundation excavation supporting of the supporting pile and lateral bracing of the reinforced concrete the effect is remarkable. Key words:deep foundation excavation;supports;support demolition;steel pipe underpinning;support pile;construction 0引言 期目标. 在众多...
2015年11月上 施工技术 第44卷第21期 CONSTRUCTION TECHNOLOGY 123 D0I:10.7672/8gis2015210123 钢管少支架在山区高墩现浇箱梁中的应用 光明,姚斐,王静华 (中交一公局第一工程有限公司,北京102205) [摘要]通常情况下,现浇箱梁施工采用满堂支架,但对于山区地势陡峭、支架高度较高、横坡较大的现浇箱梁而 言,采用钢管少支架,即钢管柱和贝雷片作为支架,能够大大提高支架的安全性,同时还可以减少人员、材料的投 人.结合麻城至武穴高速公路木子店互通C匝道4-12号墩之间现浇箱梁施工实例,着重介绍墩高达38m、横坡 6%情况下钢管少支架的组成结构、受力验算以及在施工中的应用. [关键词]桥梁工程;钢管贝雷支架;山区高墩;现浇箱梁 [中图分类号]TU731.2 [文献标识码]A[文章编号]1002-8498(2015)21-0123-03 Application of Scaffolds with Less Steel Tube for Cast-in-situ Box Girder with High Piers in Mountain Area Guang Ming Yao Fei Wang Jinghua No.1 Engineering Co.Ltd.of FHEC of CCCC Beijing 102205 China) Abstract:The cast-in-situ box girder always constructed with full scaffolds but for the steep mountain terrain because of large height support and large slope cast-in-situ box girder constructing with scaffolds with less steel tube steel tube column and bailey as a scaffold can greatly improve the safety of the scaffolds it can also reduce the personnel and material inputs.With the example of the construction of the cast-in-situ box girder between the Macheng and Wuxue highway the bridge between ramp C and No.4 to No.12 piers the structure and the stress calculation and the application of the steel tube under the condition of 38m and cross slope 6%are mainly introduced. Key words:bridges;steel pipe bailey;mountain high piers;cast-in-situ box girders 1工程概况 4×20.5(20.5212019)(202820) 本项目北起麻城,南通武穴,将沪蓉、武英、沪4×20.75(20282020),桥梁上部结构 渝3条东西向高速公路连线成网,是济广国家高为第1 5联为预应力钢筋混凝土连续箱梁,单箱 速和大广...
2014年9月下 施工技术 第43卷第18期 CONSTRUCTION TECHNOLOGY 13 D0I:10.7672/5js2014180013 钢筋网片机械连接装置及施工技术研究* 李智斌,赵杰,邵康节,张涛,冯大斌,赵基达 (中国建筑科学研究院建筑结构研究所,北京100013) [摘要]钢筋网片的应用能减少现场安装作业,加快施工进度,是钢筋工程专业化、工业化发展的重要内容.提出 了一种钢筋网片采用机械连接时的连接装置及其施工方法.实践证明,径轴双向可调节型套筒可实现钢筋网片的 连接,可以保证钢筋连接的性能,对缩短施工周期有明显效果,具有较大的社会与经济效益. [关键词]钢筋网片;机械连接;套筒;施工技术 [中图分类号]TU649;TU755.32 [文献标识码]A[文章编号]1002-8498(2014)18-0013-03 Research on Mechanical Splicing Device and Construction Technology for Steel Fabric Li Zhibin Zhao Jie Shao Kangjie Zhang Tao Feng Dabin Zhao Jida Institute of Building Structures China Academy of Building Research Beijing 100013 China) Abstract:With the application of steel fabric on-site installation can be reduced and the construction schedule can be accelerated which is important for specialization and industrialization development of rebar engineering.A mechanical splicing device and related construction methods for steel fabric is provided in this article.It proves that the radial and axial adjustable sleeve can realize the steel mesh construction ensure the capability of steel bars connection shorten the construction time with great social benefits and economic benefits. Key words:steel fabric:mechanical contact;sleeves;construction 0引言 《钢筋机械连接技术规程》JGJ107—2010[中I级 在工厂内加工成型钢筋运至现场安装是钢筋 接头的性能要求. 工程发展的重要方向,钢筋网片的工厂预制是其中 的一项重要内容,预制的钢筋网片减少了现场作业 量,能够有效加快施工进度.无论在水平构件还是 竖向构件中,钢筋网片均可以采用搭接、焊接和机 械连接等方式进行连接.传统的搭接连接方式存 在材料浪费、成本较高、布筋密度高等问题,而焊接 连接方式则存在施工速度慢、质量较难控制、施工 费用较高等问题,机械连接特别是直螺纹钢筋连接 x方问连接 技术将成为解决以上问题的有效途径,但目前国内 图...
[关键词]钢筋焊接网;房屋建筑;规范;应用;效益 [中图分类号]TU711[文献标识码]A[文章编号】1002-8498(2017)04-0053-05 ApplicationofWeldedSteelFabricinBuildingConstruction Lim Chin Loon,Lin Guozhen,Liu Xiuhuo (Xinglian Steel Mesh(Shenzhen)Co.,Ltd.,Shenzhen,Guangdong 518106,China) Abstract:Introducing the development,features,applications,on-site photos and selected project references of welded steel fabric in worldwide.Analyzing the economic factors against traditional on site steel fixing,further enhancing the advantages of welded steel fabric. Key words:welded steel fabric;building construction; specifications;applications;benefit 1钢筋焊接网在房屋建筑的发展箍,再将主钢筋插人箍筋中绑扎成梁、柱钢筋笼后, 钢筋焊接网的发明始于20世纪初期,在20世由工厂配送工地现场组装,达到节约大量现场施工 纪二三十年代,正规的钢筋焊接网厂陆续在美国、成本,提高现场施工速度和减少劳动力等优势。
施工技术 2010年12月 56 CONSTRUCTION TECHNOLOGY 第39卷第12期 钢筋桁架模板安装技术 陈钧1,项玲娜2,叶宇3,陈帅3,刘笛3 (1.浙江迪安诊断技术股份有限公司筹建部,浙江杭州310030; 2.中国城市建设研究院浙江分院,浙江杭州310012;3.浙江省一建建设集团有限公司,浙江杭州310013) [摘要]钢筋桁架模板是将楼板中钢筋在工厂加工成钢筋架,与底模连接成一体的组合模板,具有经济、便捷、安 全,可靠等优点.重点介绍了钢筋桁架模板施工工艺,包括支撑角钢施工、边模施工、梁上弹线确定位置、板材及配 件清理、钢筋桁架模板吊运、安装钢筋桁架模板、栓钉焊接、管线敷设等.该方法成功应用于杭州钱江新城集美国 际大厦工程. 【关键词]钢筋桁架模板;角钢;安装;焊接 [中图分类号]TU755.2 [文献标识码]A[文章编号]1002-8498(2010)12-0056-04 Installation Technology of Reinforcement Truss Formwork Chen Jun' Xiang Lingna2 Ye Yu' Chen Shuai Liu Di' (1.Zhejiang D.A.Diagnostics Technical Co.Lid.Preparation Department Hangzhou Zhejiang 310030 China; 2.Zhejiang Branch China Urban Construction Design Research Institute Hangshou Zhejiang 310012 China; 3.Zhejiang Yijian Construction Group Co.Ltd.Hangzhou Zhejiang 310013.China) Abstract:The floor reinforcement is processed to reinforcement truss in factory which is connected with bottom formwork to form reinforcement truss formwork.It has characteristics of economy convenience safety and reliability.The construction technologies for reinforcement truss formwork are introduced in detail including support angle steel construction side formwork construction location for snap line of beam cleaning of sheet and fittings hoisting and installation of reinforcement truss formwork bolt welding pipeline laying and so on.This method has been successfully used in Jimei International Building of Hangzhou Qianjiang New Town. Key words:reinforcement truss formwork;angle steel;installation...
2013年10月下 施工技术 第42卷第20期 CONSTRUCTIONTECHNOLOGY 77 DOI:10. 7672/sgjs2013200077 钢筋悬挂式钢木组合模板施工技术 刘海峰,马怀章,郭玮,汪仲琦,孟军 (中建八局第三建设有限公司,江苏南京210046) [摘要】针对钢筋混凝土核心筒体钢结构外框架现浇混凝土楼板,采用钢筋悬挂式钢木组合模板体系,代替传统 钢管扣件式模板体系,从而减少了周转材料的使用量,降低了施工成本,减轻了劳动强度,施工质量得到了控制. 重点介绍了钢筋悬挂式钢木组合模板工作原理、结构组成以及制作、就位、安装等施工工艺. [关键词]模板;钢木组合模板;钢筋支座;施工技术 [中图分类号]TU755.2 [文献标识码]A [文章编号]1002-8498(2013)20-0077-03 Construction of the Reinforcement Suspended SteelandWoodCombinationFormwork Liu Haifeng Ma Huaizhang Guo Wei Wang Zhongqi Meng Jun (TheThird Construction Co.,Ld.,of China Construction Eighth Engineering Division, Nanjing Jiangsu 210046 China) Abstract:According to the reinforced concrete core tube and outer steel frame,the cast-in-situ concrete slab applies reinforcement suspended steel and wood bination formwork to instead of traditional fasten- style formwork system.This system can induce the reusable material decrease construction cost,reduce labor intensity,and so on. The work principle,position and construction techniques of fabrication, location and installation of suspended steel and wood bination formwork are introduced in detail. Key words:formwork; steel and wood bination formwork;reinforcement supports;construction 目前我国高层、超高层结构形式多为钢(骨)筋 该工程标准层结构平面八角为弧形结构造型, 混凝土核心筒体钢结构外框架现浇混凝土楼板. 框架柱为内灌自密实混凝土圆管钢柱,楼面梁为H 针对外框钢梁间距较为均衡、楼板跨度较小等特 型钢梁,框架部分属全钢结构.本工程标准层结构 点,钢筋悬挂式钢木组合模板应运而生.因其摒除 如图1所示. 了传统钢管扣件式模板体系,减少周转材料的使用 量,大大降低了施工成本,减轻了工人劳动强度,实 现人性化施工;材料流水线生产,施工质量易于控 制.钢筋悬挂式钢木组合模板逐步走向市场,并已 经初具规模,取得了良好的技术、经济效果. 1工程概况 某工程为1幢34层(局部36层)写字楼,标准 层层高4.15m,外框混凝土楼板厚度120mm,总建筑 a平面 b三维 面积约9.5万㎡²,主体结构为钢框架-混凝土核心 图1标准层结构示意 简结构体系,标准层平面结构呈中字形,外围框架 Fig.1Standard layer structure 柱通过楼面钢梁与筒体连接,楼面梁与钢柱有正交 2楼面模板工程施工方案确定 和斜交两种连接方式,标准单层外框楼面混凝土施 本工程标准层楼面次梁间距主要有4200mm 工面积约2700m². 和4500mm,楼面模板体系原设计为传统的钢管扣 [作者筒介】刘海峰,工程师,E-mail:402509150@qq. 件式脚手架支模方式,为加快施工进度、降低工程 [收稿日期】2013-01-08 造价,拟采用钢筋悬挂式钢木组合模板系统. 万方数据
78 施工技术 第42卷 该模板系统支撑楼面的H型钢梁两端,利用钢 为保证模板拆除安全,钢支撑应间隔拆除,拆 筋支座悬挂在楼面结构钢梁翼缘上,钢支撑上表面 除工作需在钢支撑两端采用移动工作支架. 附有固定木方的U形构件,木方上方铺装15mm厚 3钢筋悬挂式钢木组合模板系统施工工艺 木模板. ...
2013年11月上 施工技术 第42卷第21期 CONSTRUCTION TECHNOLOGY 113 D01:10.7672/sgjs2013210113 钢筋套筒灌浆连接技术研究与应用进展 韩超,郑毅敏2,赵勇1 (1.同济大学土木工程学院,上海200092;2.同济大学建筑设计研究院(集团)有公司,上海200092) [摘要]钢筋套筒灌浆连接是一种性能可靠、施工方便的机械连接技术,主要适用于装配式混凝土结构.评述了钢 筋套简灌浆连接接头的构造、工作机理、试验验证标准以及施工工艺,讨论了配置套简筒灌浆连接的预制构件的试验 研究进展.最后对该项技术的研究及应用提出了建议. [关键词]混凝土;装配式混凝土结构;钢筋;套简连接;研究 [中图分类号]TU755.3 [文献标识码]A [文章编号]1002-8498(2013)21-0113-04 Research and Application Development of Grout Sleeve Splicing for Reinforcement Han Chao' Zheng Yimin2 Zhao Yong' (1.College of Civil Engineering Tongji University Shanghai 200092 China; 2.Architectural Design Research Institute of Tongji University Group)Co.Lad.Shanghai 200092 China) Abstract:Grout sleeve splicing is a convenient and reliable method for reinforcement connecting and it is mainly applicable in precast concrete structure.The structure working mechanism standard test method and construction technology of grout sleeve splicing are summarized.Experimental studies of the specimen with grout sleeve splicing and relevant conclusions are discussed and suggestions are put forward. Key words:concrete;precast concrete structures;reinforeement;sleeve connection;research 0引言 国家及我国台湾地区的多家公司致力于套筒灌浆 预制构件的连接节点是装配式混凝土结构理接头的研发,取得了多项专利,使其获得广泛应用. 论上的薄弱环节,而纵向钢筋的连接又是预制构件近年来,随着装配式结构在国内的再次兴起,套筒 连接的关键.现浇混凝土结构中常用的纵向钢筋灌浆接头在我国内地也开始应用,而且正在修订的 连接方式有绑扎搭接、焊接连接以及机械连接等, 行业标准《装配式混凝土结构技术规程》(征求意见 由于装配式混凝土结构的连接部位较小,采用这些 稿)对套筒灌浆接头的设计、施工提出了要求,另 传统的钢筋连接方式不便于施工.20世纪60年 外行业产品标准《钢筋连接用套筒灌浆料》、《钢筋 代,余占疏(Alfred A.Yee)在美国发明了钢筋套 连接用灌浆套筒》也已编制...
[关键词】隔震技术;钢筋;沥青;设计;施工技术 【中图分类号】TU318【文献标识码】A 【文章编号]1002-8498(2013)09-0064-03 Design andConstruction ofReinforcedAsphalt CompoundIsolationLayer Shang Qing (Shanghai Elerical and Mechanical Design Institute,Shanghai 210033, China) Abstract: Considering the poor seismic performance of brick struetures,this paper introduces the reinforced asphalt pound seismic isolation technology. This technology has the characteristics of low cost and easy construction. By setting reinforced asphalt pound isolation layer between the foundation and the main structure, the natural vibration period of the building can be significantly increased to achieve the objective of isolation and reduction of seismic action.The design procedure and the construction methods are introduced in detail.Isolation principle and system position are also introduced. The seismic action reduction coefficient and structural methods are decided by calculations. Key words;isolation technology;reinforcement; asphalt; design; construction 基础隔震技术是结构抗震的有力措施(,是震显得更为重要。
施工技术 2011年11月下 38 CONSTRUCTION TECHNOLOGY 第40卷第353期 钢框架组合模板V形墩施工技术 李凯,常进,范良,田云涛2,冯波2 (1.北京市市政工程研究院,北京100037;2.北京市公路桥梁建设集团有限公司,北京100037) [摘要]根据房山五渡桥工程施工难点,通过介绍钢框架组合模板的基本原理,提出采用钢框架组合模板技术进行 大体积变截面V形墩施工的方案.通过标准件和异形模板组合解决了各支墩施工中高度高、水平倾斜角度大且各 不一致的问题.详细介绍了钢框架组合模版V形墩施工流程及方法,以及混凝土的浇筑过程.此项技术取得良好 质量和经济效益. [关键词]桥梁工程;组合模板;钢框架;V形墩;浇筑 【中图分类号]TU755.2 [文献标识码]A [文章编号]1002-8498(2011)22-0038-03 Construction of Composite Formwork with Steel Frame for V-shaped Pier Li Kai' Chang Jin' Fan Liang' Tian Yuntao? Feng Bo2 (1.Beijing Municipal Engineering Research Institute Beijing 100037 China; 2.Beijing Roads and Bridges Construction Group Co.Lad.Beijing 100037 China) Abstract:The construction difficulties of Fangshan Wudu Bridge are put forward.Based on the formwork basic theory posite formwork with steel frame is adopted in the large volume V-shaped pier with variable cross-section.The problems of large construction height large horizontal inclined angle and different angle in each pier are solved by the bination of standardized steel frame and special parts. Construction process and method of posite formwork with steel frame for V-shaped pier and concrete pouring are introduced.The good quality and economical benefits are gained. Key words:bridges;posite formworks;steel frames:V-shaped piers;pouring 1工程概况 横向壁厚1.0m 中腹板厚2.0m.承台顶墩身宽 房山五渡桥位于北京市房山十渡风景区涞宝 8.0m 厚度方向高为5.0m.支点墩盖梁顶横桥向 路,跨越拒马河,是一座新型景观桥.五渡桥主桥为宽约16.9m 纵向水平宽约4.9m;由于纵坡影响,2 三角刚架悬吊连续梁组合桥,分为左、右幅,单幅桥 号支点墩高为9.6m 外倾水平角为37°;3号支点墩 宽9.5m 全长173m...
2017年9月下 施工技术 第46卷第18期 CONSTRUCTION TECHNOLOGY 45 D0I:10.7672/5js2017180045 钢框架-组合型钢箱形钢板剪力墙结构体系施工技术 杨士珏1,孙占利2,寿建军2,陆恺2 (1.鲲鹏建设集团有限公司,浙江杭州310053;2.浙江八达建设集团有限公司,浙江绍兴312000) [摘要]介绍了义乌市中福广场项目(B组团)工程钢框架-组合型钢箱形钢板剪力墙结构体系的施工工艺流程及 操作要点,并对钢框架组合型钢箱形钢板剪力墙结构和传统钢筋混凝土框架剪力墙结构从结构优势、品质优势、 造价优势、工期优势、施工优势、劳动优势、节能环保及文明施工优势等7大方面进行比较阐述.该体系有利于我 国建筑业转变生产方式,符合工业化大生产模式的发展方向. [关键词]钢结构;高层建筑;钢板剪力墙;施工技术 「中图分类号1TU758.11 [文献标识码]A [文章编号]1002-8498(2017)18-0045-05 Construction of Steel Frame-posite Steel Box Steel Plate Shear Wall Structure System YANG Shijue' SUN Zhanli? SHOU Jianjun2 LU Kai (1.Kunpeng Construction Group Co.Ld.Hangzhou Zhejiang 310053 China; 2.Zhejiang Bada Construction Group Co.Ltd.Shaoxing Zhejiang 312000 China) Abstract:Construction process and main points of operation are introduced of steel frame-posite steel box steel plate shear wall structure in Yiwu Zhongfu Plaza project.Advantages are pared of structure quality cost time limit construction labor force and environmental protection with traditional reinforced concrete frame shear wall system.The practice shows that the new system is conductive to the transformation of production methods in China's construction industry adjusts to the development direction of industrialized production mode. Key words:steel structures;tall buildings;steel plate shear walls;construction 0引言 和抗剪承载力. 随着各地地标性超高层建筑的高度逐年刷新,1工程概况 底部剪力墙需要承担的竖向荷载越来越大,传统的 义乌市中福广场项目(B组团)工程位于义乌 钢筋混凝土剪力墙厚度过大、施工复杂、地震作用 市金融商务区的核心区内,2栋主楼分别为29层 较强、浪费空间,提出一种新型的钢框架组合型钢 (131.5m)和3...
【关键词】桥梁工程;悬索桥;钢支座;更换;施工技术 [中图分类号]U445【文献标识码】A[文章编号]1002-8498(2015)17-0042-05 Study on Repair and Replacement of Tension and Compression Steel Bearing for Steel Truss Girder Liu Hongyu,Li Hongsheng,Guang Ming (No.1 Engineering Co.,Lad.of FHEC of CCCC,Beijing 10220S,China) Abstract:Based on replacement construction of tension and pression steel bearing of some suspension bridge without traffic interuption,this paper analyzes blind area of quality control of the bridge bearing, introduces the damage phenomena and consequences of the bridge bearing,bridge deck reduction, replacement construction technology of the bearing,analyzes replacement schemes and feasibility,which improve durability and safety of the bridge. Key words;bridges;suspension bridges;steel bearings;replacement;construction 0引言仅限于来样抽检,质量鉴定证书代表性不强或与实 在大量桥梁投人运营的情况下,桥梁支座的问际受力状况有较大差异。
施工技术 2016年7月下 154 CONSTRUCTION TECHNOLOGY 第45卷第14期 D0I:10.7672/8js2016140154 钢桁架支撑平台在高空大跨度 独立结构施工中的应用 宁国清 (中建三局集团有限公司东北分公司,辽宁抚顺113000) [摘要]针对高净空、大跨度结构,采用传统的钢管架支撑模板施工方法需要大量钢管和模板,工期也需被迫延长, 而高空大跨度悬臂梁支撑桁架综合施工方法可以解决这一技术难题.系统地阐述了大跨度、高净空独立结构施工 技术和工艺特点.经施工实践证明该施工工艺安全可靠,经济合理. [关键词]钢结构;独立梁;桁架;支撑平台;施工技术 [中图分类号]TU393.3 [文献标识码]A[文章编号]1002-8498(2016)14-0154-03 Application of Steel Truss Support Platform Construction Technology in High-altitude and Large-span Structure Ning Guoqing The Northeast Company of China Construction Third Engineering Bureau Group Co.Lid. Fushun Liaoning 113000 China) Abstract:For high clearance and large span structures if the traditional steel frame supporting formwork construction method was used it needs a large number of steel pipes and templates and the duration is also required to be extended.While the high and large span cantilever beam support truss construction method can solve the technical problems.In this paper the construction technology and process characteristics of large span and high headroom independent structure were systematically described.The construction practice proves that the construction process is safe reliable economic and reasonable. Key words:steel structures;independent beams;trusses;support platform;construction 1工程概况 某工程总建筑面积295015m2 其中一单位工 程标高41.500m处有1根净跨为24.4m 截面尺寸 为600mm×1700mm的无粘结预应力框架梁,其上 方有混凝土剪力墙,并在墙上仍然有一道截面尺寸 500mm×1500mm无粘结预应力梁,在其下方 7.45m处有结构.故悬空高度为34.05m 其两侧无 图1独立梁结构效果 其他结构,为独立梁.独立梁结构效果如图1所示. Fig.1 Effect of independent ...
施工技术 2017年7月上 62 CONSTRUCTION TECHNOLOGY 第46卷第13期 D0I:10.7672/8js2017130062 钢塑格栅在锚网支护工程中的作用机理 及其工程应用 谢翡 (山东科技大学土木工程与建筑学院,山东青岛266590) [摘要]针对钢塑格栅锚网支护技术的可行性,通过理论分析、现场工程试验和数值模拟的综合研究方法,深人全 面地对钢塑格栅错网支护技术的作用机理以及在工程中的应用进行了研究,研究结果表明:①通过研究钢塑格栅 错网支护机理,阐述了钢塑格栅错网支护的必要性,解释了钢塑格栅在调整岩土体应力和协调岩土体变形方面发 挥的作用,同时提出了钢塑格栅错网支护“让压”原理;②通过对错网支护方式的研究,揭示不同支护条件下对数值 模拟结果的影响,得出了无支护和钢塑格栅锚网支护时产生的深基坑变形量;③通过数值模拟与现场监测数据对 比,验证了数值模拟结果,证明了在错网支护工程中钢塑格栅作为支护材料的可行性. [关键词]基坑;支护;钢塑格栅;错网;作用机理:监测 [中图分类号]TU599 [文献标识码]A [文章编号]1002-8498(2017)13-0062-05 The Mechanism of Steel Grating in Anchor Net Support Engineering and Its Engineering Application XIE Fei (School of Civil Engineering and Architecture Shandong Uniersity of Science and Technology Qingdao Shandong 266590 China) Abstract:In the light of the feasibility of the technology of grid anchor net support based on the theoretical analysis the prehensive research method of the field engineering test and numerical simulation steel grating anchor net supporting mechanism and application in engineering are studied. Research results show that:①Study on steel grating anchor net supporting mechanism expounds the steel grating anchor net support supporting the necessity explains the plastic grille in the adjustment of the rock and soil should force and the coordination of rock and soil deformation plays a role at the same time the steel grating anchor net supporting‘crush’principle;②Through revealing the different support conditions on the numerical simulation results of the im...
施工技术 2011年3月下 88 CONSTRUCTION TECHNOLOGY 第40卷第337期 钢制防屈曲约束支撑的开发 牧野俊雄,西川宏之,一户康生2,福田浩司2 (1 住金关西工业株式会社,东京日本:2.友金属工业株式会社,东京日本) [摘要]作为消能减震部件,要求防屈曲约束支撑的海回曲线稳定.开发了两块腹板式钢制防屈曲约束支撑$UB- H和螺栓组装式钢制防屈曲约束支撑SUB-X.结合开发试验,提出了SUB的结构设计公式.静态和动态荷载试验 证明,SUB具有较高的安全性和精度,大型试验证明SUB在高轴力状态下也具有良好的滞回性能. [关键词]钢制防属曲约束支撑:累积塑性变形;屈服强度;循环荷载 [中图分类号]TU352.1 [文献标识码]A[文章编号]1002-8498(2011)06-0088-03 Developing of Steel-unbuckling-brace Toshio Makino'.Hiroyuki Nishikawa' Yasuo Ichinohe? Kouji Fukuda2 (1.Sumikin Kansai Industries Co.Ld.Tokyo Japan:2.Sumitomo Metal Industries Co.Led.Tokyo Japan) Abstract:As energy dissipation ponent the unbuckling-brace should have stable hysteresis curves. The steel-unbuckling-brace short for SUB are developed as SUB-H with two wehs and SUB-X with bolts assembled.Combing with the developing experiments formulas for structural design are proposed.Static and dynamic load tests show that the SUB has excellent safety and precision and large-scale test proves the good hysteretic behavior of SUB. Key words:steel-unbuckling-brace;cumulative plastic deformation:yield strength;cyelic load 防屈曲约束支撑通过使用约束材料来增加芯材 问隔材料 的刚度,使得受压时芯材不屈曲,保证滞回曲线的稳 定.具有稳定滞回曲线的消能部件已在工程中应 钢板芯材 用.芯材的约束可以有多种方案,从其形状、 质量、经济性、可施工性、质量稳定性、工期等因素考 防屈曲约束材 间隔材料 虑,两块腹板芯材的防屈曲支撑性能较好,已实现商 品化.但是,这种形式不能满足防锈性高的要求,又 开发了先镀锌处理,再用螺栓组装的类型. 钢板芯材 防屈曲约束材 1钢制防屈曲约束支撑的形状和材料 a SUB-H 图1以组装图形式给出了SUB产品的最终形 高强螺栓 状,包括两块腹板式SUB-H和螺栓组装式SUB-X. 角钢芯材 SUB-H为焊接组装,有多种钢板强度和板厚, 可自由设计约束材料.为避免钢材间接触时产生摩 电问隔材料 擦,对约束材料施加轴力,中间夹入橡胶垫片.组装 十字形截面 约束材料时,橡胶垫片应与焊接部分预留一定距离, 角钢.芯材 ...
2012年3月上 施工技术 第41卷第360期 CONSTRUCTION TECHNOLOGY 89 管桩水泥土复合基桩工程应用研究 宋义仲,程海涛,卜发东,马凤生 (山东省建筑科学研究院,山东济南250031) [摘要]管桩水泥土复合基柱是一种获得国家发明专利的新桩型,由高喷搅拌水泥土桩与同心植人的高强预应力 管桩优化匹配复合而成.结合聊城某工程实例,首先介绍了桩基设计及优化过程;然后分析了施工机械及工艺,提 出了喷浆工艺沉桩时间间隔、桩位偏差控制等关键技术;最后应用效果表明,管桩水泥土复合基桩单桩承载力、桩 位偏差均满足设计与规范要求,与同地区钻孔灌注桩相比施工效率基本相当,造价降低约35%. [关键词]桩基础;管桩;水泥土;复合基桩;承载力;施工技术 [中图分类号]TU472.32 [文献标识码]A [文章编号]1002-8498(2012)05-0089-03 Study on Engineering Application of Composite Pile Made up of Jet-mixing Cement and PHC with Core Concrete Song Yizhong Cheng Haitao Bu Fadong Ma Fengsheng (Shandong Provincial Academy of Building Research Ji'nan Shandong 250031 China) Abstract:Composite pile made up of jet-mixing cement and PHC with core concrete CPCP)is a new kind of piles which has been granted invention patent of China.The CPCP consists of external jet-mixing cement pile and PHC in the inner core.The design and optimum of CPCP is introduced at first bined with engineering application in Liaocheng.Construction equipments and process of CPCP are analyzed then.Key construction techniques such as grouting process reasonable time of sinking PHC and controlling method of CPCP offsetting are proposed.At last application effects show that bearing capacity and offsetting of CPCP can meet the requirements of design and national codes.Compared with bored piles in soft soil engineering cost of CPCP decreases by 35%with basically same construction efficiency. Key words:pile foundations;pipe piles;cement-soil;posite foundation pil...