[关键词]机场;航站楼;钢结构;屋盖;网架;同步提升;仿真分析 [中图分类号】TU311.41[文献标识码】A[文章编号]1002-8498(2012)14-0135-03 CheckingAnalysisoftheHoistingProcessof theSteelSpace TrussRoofof ChaoshanAirport Terminal Li Ruifeng' ,Liu Jianpu² (1. School of Cisil Engineering, Tongji University, Shanghai 200092, China; 2. Shanghai Tongji-baoye Construction Robot Co. , Ltd. ,Shanghai 200092, China) Abstract; The roof of Chaoshan Airport takes the shape of iregular steel space truss and it was lifted as a whole during construction. Geometrical model was built for this structure and boundary conditions were applied in finite element analysis program. Analyses were performed for synchronized hoisting and unsynchronized hoisting. The forces of the lifting frame and the stress state of the welded ball joint were then analyzed to provide theoretical support for the safety of the construction. Key words:airports;terminals;steel structures; roofs; space truss; synchronizing lifting; simulation 1工程概况, 潮汕机场(见图1)是广东省“十一五”规划重 点建设项目,机场屋顶为多曲面焊接球钢网架结 构,沿中轴线方向长约315m,垂直于中轴线方向宽 约280m,整个屋盖投影面积约34000m²。
2013年4月下 施工技术 第42卷第8期 CONSTRUCTION TECHNOLOGY 79 D01:10.7672/sgj82013080079 滨海浅滩地区土岩组合地层深大基坑支护技术 田仕文,周长海,赵鹏 (青岛高新区投资开发集团有限公司,山东青岛266000) [摘要]青岛高新区全地下污水处理厂基坑支护工程,具有基坑开挖深、面积大,地下水位高,地层土质差,中粗砂 层厚等特点,采用上部吹填淤泥层放坡、下部在前排桩后增加少量后排桩,形成双排灌注桩加错杆支护的综合支护 形式.重点介绍了基坑支护方案,通过现场基坑监测数据分析及工程实践效果,表明支护方案的合理可靠性. 【关键词]基坑:滨海地区;支护;桩;监测 [中图分类号]TU753.6 [文献标识码]A [文章编号]1002-8498(2013)08-0079-03 Support Technology for Deep and Large Foundation Excavation in the Soil and Rock Strata of Coastal Shallows Area Tian Shiwen Zhou Changhai Zhao Peng Qingdao High-tech Investment Development Group Co.Ltd.Qingdao Shandong 266000.China) Abstract:The foundation excavation support for the underground sewage treatment plant in Qingdao high- tech district was featured by deep foundation excavation large area high water lever poor soil strata thick coarse sand layer etc.A prehensive support system of double-row bored piles plus anchor was adopted whose upper part was slopes with reclamation silt and in the lower part and some back piles were added behind the front piles.The support scheme is introduced in detail.The monitoring data and practice proved that the support scheme was reliable and reasonable. Key words:foundation excavation coastal area;supports;piles;monitoring 0引言 ×204m 开挖深度约13.0m 局部达14m. 青岛国家高新区濒临黄海,地处胶州湾底部,1.1地形、地貌 场区地貌为滨海浅滩,后经人工吹、回填改造形成 地形:总体较为平坦,局部为虾池、盐池,泥面 现状地貌.地层主要为回填料、淤泥质粉质黏土,标高约1.0~2.5m 东侧及南侧积水,水面标高约 间或有海相沉积砂层出现.软土分布广泛、厚度 2.0m;地貌:场区原地貌为滨海浅滩,后经人工回填 大、土质差、地下水位高、地质条件复杂,为工程基 改造形成现状地貌. 坑支护带来了其特殊性.虽然滨海浅滩土岩...
【关键词】钢结构;波纹腹板H型钢梁;外伸端板;连接;研究 【中图分类号】TU391【文献标识码】A【文章编号】1002-8498(2015)20-0096-04 StudyofBehaviorsofSemi-rigidExtendedEnd-plate ConnectionsofH-beamswithCorrugatedWebs
(1.College ofCivilEngineering,HebeiUniversity ofEngineering,Handan,Hebei056038,China; 2.Hebei University of Engineering Research Instiute of Architecture Design,Handan,Hebei 056038, China;3.Adult Education College,Hebei University of Engineering,Handan,Hebei 056038,China) Abstract:In order to study the behaviors of semi-rigid extended end-plate connections of H-beams with corrugated webs, extended end-plate connections were simulated under the monotonic and static loading with the finite element software ANSYS.The moment-rotation curve and end-plate stress cloud pictures were obtained and behaviors of the connections were analyzed. The thickness of the endplate and the ratio of the height to thickness of the beam web were adjusted respectively to analyze their influence on the moment-rotation curve.The results show that with the increase of the bending moment, characteristics of the moment-rotation curve turn from linear into nonlinear and the stiffness of the connections reduce gradually; the thickness of the end-plate and the ratio of the height to thickness of beam web have a significant impact on the initial stiffness and bending capacity of connections. Key words:steel structures;H-beams with corrugated webs; extended end-plate; connections;research
0引言值屈曲分析”等。
【关键词】钢结构;波浪腹板:锅拱:制作:基本性能;经济效益 [中图分类号】TU758.16[文献标识码】A【文章编号】1002-8498(2012)14-0026-04 Fabricating Procedure and Characteristics of SteelArchwithSinusoidal CorrugatedWeb Guo Yanlin, Chen Hang,Dou Chao (Departmenof CirilEngineering,Tainghaa Uniserty,Bejing100084,China) Abstract :Steel arch with sinusoidal corrugated web is a new type of high-performance steel member, and it is easily fabricated and has high material utilization. This paper presents a fabricating procedure by controlling parameters of sinusoidal corrugated web required for the given steel arch.A simplified finite element model is proposed to analyze the force, deformation of the steel arch with sinusoidal corrugated web. Comparison of material cost consumption between flat web and sinusoidal corrugated web is drawn, which reveals steel arch with sinusoidal corrugated web has excellent economic benefits. Key words; steel structures; sinusoidal corrugated web; stel arch; fabrication; basic performance; economic performance 0引言边角料的浪费,不是很经济。
[关键词]钢结构;波浪形结构;箱形截面;安装;施工;数值模拟 【中图分类号】TU391;TU758【文献标识码】A[文章编号]1002-8498(2015)20-0069-04 AnalysisofHighAltitudeInstallationConstructionofWaved ThickPlateWeldingBoxStructure YanZelong',CaoPingzhou',ChenZhongrong²,WuKai',Xu Jinxian² (1.CollegeofCiviland Transportation Engineering,HohaiUniersity,Nanjing,Jiangsu210098,China; 2.Jiangsu New Blue Sky Steel Structure Co. ,Ld.,Nanjing,Jiangsu 210098,China) Abstract:In order to ensure the safety and reliability of structure during the installation phase, the installation scheme should be puted and analyzed.Four kinds of construction installation scheme for the large waved thick plate welding box structure of a public building were set up.The software MIDAS/ Gen was used to simulate different construction schemes in the whole process of construction,analyzing ponent deformation, the erection and dismantling of temporary support.The parative analysis of four plans was made from ponent deformation, the dosage of temporary support,construction period and so on.The results confirm that the proposed scheme of temporary support recycling can not only meet the construction requirements, but also can save material and reduce the cost which can be used for reference in the construction installation. Key words;steel structures; waved structure;box section;installation; construction; simulation 0引言 构安全可靠工作,应针对施工阶段的施工方案进行 结构设计分析一般是以峻工后的整体结构作计算分析。
[关键词]防水工程;屋面工程;坡瓦屋面;波形沥青防水板;施工技术 [中图分类号]TU761.11【文献标识码]A[文章编号]1002-8498(2013)16-0098-03 ApplicationofCorrugatedBitumenSheets on aBuilding Huo Long,Yuan Zhouji,Wang Zhongqi (Beijing Branchof the Third Construction Co.,Ltd.of China Construction Eighth Engineering Division,Bejing 100097,China) Abstract:Corrugated bitumen sheets canbe usedon sloped roofsasanunderlying layer under rooftiles. Apart from being waterproofing,they also provide functions such asroof ventilation,dehumidification and insulation to the roof.Combinedwith the application of corrugated bitumen sheets on aresidential building in Xibaipo, the construction technologies and key points in the construction process are summarized.The quality control measures for the joint treatments of the corrugated bitumen sheets are introduced in detail.The application results show that the corrugated bitumen sheets can ensure the waterproof quality,reduce the construction cost and shorten the construction time. Key words:waterproofing;roofs;sloped tile roofs;corrugated bitumen sheets;construction 1工程概况国家建筑标准设计图集《波形沥青瓦、波形沥青防 本工程位于河北西柏坡镇南庄村和北庄村周水板建筑构造》07CJ15施工。
读书楼全景如图1 边区域,与西柏坡纪念馆隔水相望。
东侧和南侧紧所示。
邻岗南水库,工程布局不规则,地形呈山地形态,地 势东高西低。
总建筑面积约54000m²,含学员读书 楼和健身中心2部分,均为框架结构,学员读书楼主 楼高5层,两翼为2层和4层,建筑面积46000m²,图1读书楼全景 健身中心8000m²,屋面均为坡屋面,坡度为18°34',Fig.1 Reading building 面积约15000m²。
102 族工技术 第41卷 沉降观测技术在某建筑中的应用 何永明,潘翔2 (1.武警警种学院,北京102202:2.武警水电第二总队,江西南昌330096) 【摘要]结合工程实际,就如何做好建筑物的沉降观测进行了探讨,提出了沉降观测点的布置原则,并对建筑物沉 降观测的必要性、沉降观测等级及精度确定、水准基点和沉降观测点布设、沉降观测方法、沉降观测周期和频率等 方面进行了讨论,介绍了沉降观测成果的处理、安全性分析及变形预报的方法. [关键调]测量:沉降:变形:监测 [中图分类号]TU196.2 [文献标识码]A[文章编号]1002-8498(2012)12-0102-02 Application of Settlement Observation in Some Building He Yongming'.Pan Xiang? (1.Corps Institute of Chinese Armed Police Beijing 102202 China; 2.No.2 Hydropoweer Foree of Armed Police Nanchang Jiangxi 330096 China) Abstract:Combined with the project practice the building settlement observation is discussed.Authors discuss layout of monitoring points the necessity of settlement observation the observation rating and the precision determines the benchmarks point and the subsidence observation point establishes subsidence observation method as well as subsidence observation cycle and frequency rate.The subsidence observation achievement processing the secure analysis and distortion forecast method are introduced. Key words:measurement;settlement;deformation:monitoring 1工程简介 并结合场地地质情况,本工程共埋设11个观测点. 受南昌市中凯蓝域住宅小区开发商委托,对中3.2观测点埋设 凯蓝域小区31号商住楼作沉降观测.中凯蓝域小 观测点埋设时必须注意观测点与建筑物的牢 区位于南昌市高新区,其中31号商住楼拟建地上靠结合,使得观测点能真正反映建筑物的变化特 1层,地下1层.根据现场沉降监测数据与设计值征.同时沉降观测点应设置在能够反映建筑物变 (预测值)进比较,如超过某个限值,就采取工程措 形特征和变形明显的部位,观测点应稳固、明显、结 施,防止支护结构破坏及意外事故的发生. 构合理,且不影响建筑物的美观和使用.根据本工 2精密水准点布置 程具体情况,在建筑物承力柱上采用电钻钻孔,然 建筑物沉降量观测的准备工作是根据场地需 后用固化剂将观测点固定在柱上,如图1所示. 要布设精度较高的水准点,水准点的设置必须稳定4沉降观测周期和观测方法 可靠,最好设置在基岩上;其次是在压缩性较低的 要掌握建筑物沉降情况,就是测定建筑物上所 ...
[关键词]隧道工程;沉管隧道;堆砂;荷载;运营;数值模拟分析;变形 [中图分类号】TU289;U459.5[文献标识码]A[文章编号]1002-8498(2012)13-0096-04 Analysisto theInfluence ofAccumulatedShore Sand on Immersed Tunnels Zhang Ruixia (Shanghai Tongji Institution of Inspection on Constructin Quality, Shanghai 200092,China) Abstract;An immersed tube tunnel crossing a river has accumulated sand on shore.With numerical analysis using three-dimensional analysis software, this paper discussed the influence of the sand on the immersed tube tunnel considering diffrent size and location of the sand load.Analysis was performed with respect to the deformation criterions for immersed tube tunnels during normal operation.Safety of immersed tunnels under diferent sand load conditions was evaluated and design suggestions provided. Key words:tunnels;immersed tunnel;accumulated sand;load;operation period;numerical analysis; deformation
1工程概况江北80m(规划航道)江南 某隧道为双向四车道沉管隧道,分为江北引道3.31m最高水位128m平均商查位深位 段、江北暗埋段、江中沉管段、江南暗埋段、江南引.72m降促来
95100m00mF00m 道段五大部分。
【关键词】地铁;盾构;支护;接收端;土压力 [中图分类号】U455.43【文献标识码】A[文章编号]1002-8498(2013)19-0112-06 Research on theStress of Shield ArrivingEnd Soil and Supporting StructureatTunnelFaceinSubsurfaceExcavation Construction Shi Sun,Yang Fuqiang (Bejing Municipal Engineering Co.,Ltd.UNI,Bejing 100029,China) Abstract:Based on the force analysis of shield receiving end soil by thin plate theory,bined with the shield crossing intermediate mining ventilation tunnel with Beijing Subway line No.15 Nanfaxin station to Shimen station,the soil stress is analyzed in the processof the shield receiving.The distance in different tunneling of earth pressure geology and hydrogeology conditions was get when tunnel face is destroyed. This paper analyzed the tunneling force in shield receiving,soil pressure and site construction condition. Themethod of teporary upportwasadopted toimprove thestability and bearingcapacityof thexisting structure tunnel face,and the proposal to optimize mining ventilation shield receiving tunnel face structure is put forward. Key words:subways; shields; supports; shield receiver; soil pressure 目前盾构接收洞口受力支护结构主要是地下接收时加固段在不同长度下的土体受力情况、初衬 连续墙或围护桩,端头土体加固范围为12m×12m,的受力状态和盾构掘进推力的控制;同时提出盾构 沿隧道方向9m,洞口结构受力大、变形小,能承受盾安全结构的附加措施,为盾构接收时端头支护结构 构接收时相当大的推力,在控制地下水和盾构出土及土体加固效果各异的情况下接收提供参考。
2014年9月上 施工技术 第43卷第17期 CONSTRUCTION TECHNOLOGY 97 D0I:10.7672/5js2014170097 掺和钢炉渣的新型混合水泥土强度特性试验研究* 王丽艳12,符仁建,胡霖森,杜晓雷3 (1.江苏科技大学土木工程与建筑学院,江苏镇江212003;2.南京工业大学岩土工程研究所, 江苏南京210009:3.柳州市水利局,广西柳州545000) [摘要]掺和废弃钢炉渣的混合土是一种新混合填土路基材料,在常规不固结不排水三轴压缩试验基础上研究了 混合轻质黏土的强度特性,分析了钢炉渣掺人比以及龄期分别对应力应变特性、破坏形式及抗剪强度的影响规律, 得出了应力应变特性、破坏形式及抗剪强度随钢炉渣掺人比以及龄期变化的规律是基本一致的,钢炉渣掺人比越 大.混合水泥土的早期强度越低,但随着龄期的增长.后期强度增长越明显,研究得出的混合水泥土理想的钢炉渣 施工接人比在能源节约、环境保护方面可以有一定的应用前景. [关键词]公路工程:路基;混合水泥土;应力;应变 [中图分类号]U416.1[文献标识码]A [文章编号]1002-8498(2014)17-0097-05 Experimental Study on Compressive Strength Properties of Cement Soil Blended with Steel Slag Wang Liyan.2 Fu Renjian' Hu Linsen' Du Xiaolei (1.School of Architecture and Civil Engineering Jiangsu Unirersity of Science and Technology Zhenjiang Jiangsu 212003 China:2.Institute of Geotechnical Engineering Nanjing University of Technology Nanjing Jiangsu 210009 China;3.Liuzhou Water Resources Bureau Liuzhou Guangxi 545000 China) Abstract:Mixed light-weight soil blended waste slag is a new hybrid material in conventional unconsolidated and undrained triaxial test on the basis of the strength characteristics slag incorporation ratio and age correspond to stress-strain properties failure form and shear strength of the law and the conclusions are achieved that the stress-strain behavior failure modes and shear strength incorporation ratio and age changes in the law are consistent with the slag with the high slag incorporation ratio the intensity of mixed soil has lower strength but wi...
施工技术 2015年8月上 78 CONSTRUCTION TECHNOLOGY 第44卷第15期 D0I:10.7672/8js2015150078 掺加纳米材料水泥土无侧限抗压强度试验研究* 张茂花,刘亚静,杨静 (东北林业大学土木工程学院,黑龙江哈尔滨150040) [摘要]把纳米Si02、纳米A1203和纳米蒙脱土3种纳米材料加入普通水泥土中,制备掺加纳米材料的水泥土.通 过室内无侧限抗压强度试验,研究不同纳米材料及其掺量、龄期、水泥掺量、水胶比对添加纳米材料水泥土无侧限 抗压强度的影响,为添加纳米材料水泥土的进一步研究及其在实际工程中的应用提供了方向. [关键词]纳米材料;水泥土;抗压强度;龄期;水泥掺量;水胶比 [中图分类号]TU528 [文献标识码]A [文章编号]1002-8498(2015)15-0078-04 Research on Unconfined Compressive Strength of Soil Cement with Nano Structured Materials Zhang Maohua Liu Yajing Yang Jing School of Ciril Engineering Northeast Forestry University Harbin Heilongjiang 150040 China) Abstract:Nano-SiO nano-Al O and nano-montmorillonite are added into plain soil cement as the admixtures.The influence of various factors including the variety and content of nano structured materials the age the content of cement the water-to-binder the sum of cement and nano structured materials)ratio on the unconfined pressive strength of soil cement is studied.The direction of the further study and the practical application of soil cement with nano structured materials is provided. Key words:nano structured materials;soil cement;pressive strength;age;cement content;water- to-binder ratio 0引言 验,研究纳米材料的种类和掺量、龄期、水泥掺量、 近年来,水泥土在软土地基加固工程中被广泛水胶比对水泥土无侧限抗压强度的影响. 应用,例如深层搅拌法、高压喷射注浆法、灌浆法、1试验概况 回填法等12.为进一步提高水泥土性能,往往加 1.1试验材料 入一些外加剂.目前国内外都做了许多外加剂的 试验所用土样为粉质黏土,土样具体物理力学 相关试验研究,例如掺加减水剂(茶系高效减水 指标:液限33.5%、塑限18.0%、相对密度2.607、曲 剂)、粉体材料(氢氧化铝、氯化钙、硅粉)、纤维材料 率系数0.10、不均匀系数12.88,属于低液限黏土. (玻璃纤维、钢纤维)等来提高水泥土的工程特 土样自现场取回后均匀...
[关键词]脚手架;承插型键槽式脚手架;对比分析;施工技术 [中图分类号】TU731.2[文献标识码】A[文章编号】1002-8498(2014)23-0004-04 ApplicationofKeywayTypeScaffoldwithSocket inEngineering Construction GuanZhizhong²,Fang Tianwen (1.China Construction First Building (Group)Co.,Ltd.,Beijing 100161,China; 2.The Second Construction Co.,Lid.of China Construction First Group,Beijing 100068,China) Abstract:Based on China Satellite Communication Building,this paper analyzed and pared with the mechanical properties and the economical efficiency of fastener scaffold,bowl-buckle scaffold and keyway type scafoldwithsocket,focusedonthe applicationof keywaytype scaffld withsocket.Inadditionthis paper analyzed the advantages of keyway type scaffold with socket in parison to the other two kinds of scaffolds in terms of technology, cost and safety. Key words:scaffolds;keyway type scaffold with socket;parative analysis;construction 中国卫星通信大厦工程位于北京市海淀区知 1)放线由于承插型脚手架对误差要求极为 春路,檐高99.9m,地下4层,地上23层,该工程为严格,现场施工时需严格按照技术部的模架排布图 航天科技集团与海淀区政府合力打造的中关村产进行放线,放完线后经现场责任工程师验收方可进 业园的先期工程,建成后将成为中关村地区地标性行下一道工序。
2016年8月上 施工技术 第45卷第15期 CONSTRUCTION TECHNOLOGY 27 D0I:10.7672/8js2016150027 承插型盘扣式钢管脚手架在创极速光轮游乐项目 天幕工程中的应用 沈勤,刘洪亮 (上海宝冶集团有限公司,上海200941) [描]介绍承插型盘扣式钢管脚手察在创极速光轮游乐项目天尊工程中的应用,通过方比较,定了脚手架的 描设思路,对游艺就送测诚空间布设、人行天桥作业空向布设等关键拉术进行介.实践表明,承描型垂扣式钢管 脚手架有故解决了游艺设施的调试空问题,节约了施工工期. [关键词]脚手架;承插型盘扣式;粉想降;安装;逸工技术 [中图分类号]TU731.2[献标识码]A[支章编号]1002-8498(2016)15-0027-03 Application of Socket Type Steel Pipe Scaffolds System on TRON Lightcycle Power Run Project Shen Qin Liu Hongliang Shanghai Baoye Group Co.Lad.Shanghai 200941 China) Abstract:The application of socket type steel pipe scaffolds system on TRON Lightcycle Power Run project is introduced.Through the paration of schemes the key technology of track test space layout entertainment pedestrian work space layout are introduced.Practice shows that the socket type steel pipe scaffolds system is an effective solution to the debugging space for recreational facility saving the construction time for a project. Key words:scaffolds;socket type plate type;trusses;installation;construction 承插型盘扣式钢管脚手架由立杆、水平杆、斜 杆、可调底座及可调托座等配件构成.立杆采用套 管承插连接,水平杆和斜杆杆端接头卡入连接盘, 用模形播销连接,形成结构几何不变体系的钢管脚 手架,具有节点稳定、整体稳定性好、施工工故高、 1创极速光轮天幕放果 架体灵活的特点. Fig.1 Architecture effect of TRON Lightcycle 1工程概况 Power Run project 创极速光轮天暴建筑采用空间双层钢网壳膜2方比 结构体系,主要结构由圆管支撑斜柱、双层网壳屋 创极速光轮摩托轨道、创极速光轮天幕、人行 面、网壳边缘构件以及端部圆钢管粉架组成.屋面天桥这3个单体在同一个空间区域内交叉,有从制 双层网壳最大跨度46m 高度31.9m 建筑面积 极速光轮摩托单体内穿出的游艺航道,有为游艺就 道室外运行提供功能性服务的天菜,有为游客出入 3746m2 游客乘坐的光动能摩托由室内出发,沿着 而连接各单体的人行天桥(见图2),如何安排3个 创极速光轮天幕穿梭,最回到室内,人行天桥位 单体的施工顺库成为施工重点. ...
2017年7月下 施工技术 第46卷第14期 CONSTRUCTION TECHNOLOGY 31 D0I:10.7672/5j52017140031 承插型盘扣式模板承重体系承载力计算和 现场监测对比分析* 肖明葵,徐灿2,段军,班宇鑫3 (1.重庆大学城市科技学院,重庆402167:2.重庆南州投资有限责任公司, 重庆401420:3.重庆大学土木工程学院,重庆400000) [摘要]针对某实际工程中现场浇筑3m厚板的承插型盘扣式模板承重支撑体系的支架稳定承载力问题,按照施工 安全技术以及考虑规程确定的搭设方案,分别采用中国、英国和日本规范的方法以及一些研究者提出的计算方法 进行了承载力计算,并对搭设的模板支架进行了现场检测. [关键词]模板:脚手架;承载力;监测:有限元分析 [中图分类号]TU755.2*9 [文献标识码]A [文章编号]1002-8498(2017)14-0031-05 Comparison Between the Bearing Capacity of Disk Lock Steel Tubular Type and Field Monitoring XIAO Mingkui' XU Can2 DUAN Jun' BAN Yuxin (1.City College of Science and Technology Chongging University Chongging 402167 China;2.Chongging Nanzhou Inrestment Co.Ld.Chongging 401420 China;3.School of Ciuvil Engineering Chongging Unirersity Chongging 400000 China) Abstract:This stability bearing capacity of a disk lock steel tubular type for 3m thick plate in a practical engineering is analyzed.The system is identified according to the construetion safety technieal and technical codes.We do calculation with the method in technical codes of China Britain and Japan as well as some methods proposed by researchers and field monitoring is made latterly. Key words:formworks;scaffolds;bearing capacity;monitoring;finite element analysis 0引言 浇筑地下室等建筑物的顶板时,往往需要搭设 建筑业中跨度大、高度高、承载力大的模板支一些跨度大、高度高的满堂支撑架,浇筑上部混凝 撑架安全性问题日益突出.模板支撑体系一般有土且上部混凝土结构强度尚未形成时,这类模板支 扣件式、碗扣式和盘扣式几种形式,扣件式支撑体 撑体系同时要承担混凝土结构以及结构施工时的 系加工简单,搬运方便,通用性强,是国内使用最普 各种荷载,为保证施工安全,需要对模板支撑体系 遍的模板支撑体系,但缺点是容易出现滑落和滑丝 的搭设方案和承载能力进行计算.我国行业标准 现象,整体性不好,易导致施工不安...
[关键词]钢结构;屋盖;拱形结构;提升;非线性;仿真分析 [中图分类号]TU323.4;TU758.11[文献标识码]A[文章编号】1002-8498(2012)14-0087-03 Simulationof theConstructionProcessoftheSteelRoofinCentral EntertainmentArea ofChengduNew Century Global Center Xing Zunsheng',Liu Zhonghua',Xu Dehao',Wu Changgen² (1. Zhejiang Jinggong Stee Building Co., Lad. , Shaoxing, Zhejiang 312030, China; 2. Guangzhou Rongbosheng Building Design Firm, Shenzhen, Guangdong 518040, China) Abstract;The steel roof in central entertainment area of Chengdu New Century Global Center is a large- span arch structure,whose cross section takes the shape of semi-circle.The construction technology of ‘Accumulative Segment Lifting with No Deformation’ is developed and applied. Nonlinear finite element analysis of the construction process verified the feasibility of this technique.According to the calculation results, parts which do not meet the strength and stiffness requirements are reinforced. With this technology, the arch strueture has very low additional stress level, and the construction process is safe and reliable. Key words;steel structures; roofs; arc structures; lifting; nonlinear; simulation 1工程概况第2次提升架第2次提升架 成都新世纪环球中心中央游艺区钢结构壳体第1次提升架第1次提升架 长443.4m,跨度155~194m,结构最高点约98m。
[关键词】航站楼;钢结构;主拱;滑移;施工技术;数值模拟 [中图分类号】TU758 [文献标识码]A [文章编号]1002-8498(2014)20-0054-04 Sliding ConstructionforSteel Structure in Chengdu ShuangliuInternational Airport T2 Terminal Yang Guosong,WuWenping,WangXiaoning,TangXiangjun,ShiRongjin (Jiangsu Huning Steel Mechanism Co.,Ltd.,Yixing,Jiangsu 214231,China) Abstract:The steel structure of Chengdu Shuangliu International Airport T2 terminal includes 16box section truss main arch and double grid.It has some structural characteristics such as larger span and great weight. The sliding construction technology of erection scheme is used because of the cross constructionin road-bridge structure,concrete structure and steel structure.The construction process of concrete structure,sliding support structure and steel structure are simulated and analyzed by FEM software to meet the security and reliability.The results show that the sliding construction scheme is feasible. Key words:terminals;steel structures;main arch; sliding;construction;simulation 1工程概况 成都双流国际机场T2航站楼工程中央大厅的 陆侧钢屋盖南北向长510m,东西向跨度125.2m,由 16片“竹叶状”的双层拱网壳及之间的15片单层网 壳组合而成。
施工技术 2017年9月下 110 CONSTRUCTION TECHNOLOGY 第46卷第18期 D0I:10.7672/5j52017180110 成层场地条件下远场地震动传播特性试验研究* 王智猛1,张建经2,张明2,童心豪2 (1.中国中铁二院工程集团有限责任公司,四川成都610031; 2.西南交通大学土木工程学院,四川成都610031) [摘要]设计并完成了成层场地的大型振动台模型试验,研究了成层场地条件下远场地震动传播特性,研究结果表 明:从整体来说,当加载El Centro波和汶川卧龙波时,加速度放大系数峰值随岩层倾角的增加而增大,此增大趋势 不明显;加速度放大系数峰值随输人地震波峰值增加而增大,此增大趋势较为明显.对于不同岩层倾角的场地,傅 里叶谱的幅值均随着高程的增加而增加,在顶部碎石土场地中具有最大的傅里叶谱幅值,建于碎石土场地上的建 筑物将遭遇最大的地震动速度. [关键词]成层场地:动力特性;振动台试验:放大效应 [中图分类号]TU435 [文献标识码]A [文章编号]1002-8498(2017)18-0110-04 Study on Dynamic Characteristics of Layered Site Under Far Field Earthquake by Shaking Table Tests WANG Zhimeng' ZHANG Jianjing? ZHANG Ming2 TONG Xinhao2 (1.China Railway Eryuan Engineering Group Co.Ltd.Chengdu Sichuan 610031 China; 2.School of Civil Engineering Southacest Jiaotong University Chengdu Sichuan 610031 China) Abstract:A large-scale shaking table model test of layered site of nuclear power model was performed to study the dynamic response characteristics of seismic acceleration under different seismic intensity the research results show that:in the whole horizontal acceleration gradually along the elevation based on input seismic wave when the input wave is EL Centro wave and Wenchuan Wave.However this tendency of growth is not obvious which is opposite with the shaking amplitude of input wave At the same time the amplitude of Fourier spectrum gradually increases with the elevation the maximum value appears at the gravel site.Therefore when the structures is built on the gravel site the desig...
2014年5月上 施工技术 第43卷第9期 CONSTRUCTION TECHNOLOGY 63 D0I:10.7672/5j52014090063 带斜筋单排配筋乙形截面剪力墙抗震性能研究* 张建伟,胡剑民,杨兴民2,曹万林,程焕英 (1.北京工业大学建筑工程学院,北京100124;2.中国中建设计集团有限公司,北京100037) [摘要]为适应抗震设防地区对多层住宅结构具有良好抗震性能、施工简便、造价低、绿色节能等特点的发展要求, 提出带斜筋单排配筋混凝土剪力墙,再结合部分免拆建筑模网技术,形成新型抗震节能多层住宅结构体系.为了 解带斜筋单排配筋Z形截面墙体的抗震性能,进行2个相同配筋量的Z形截面剪力墙低周反复荷载试验,1个为普 通双向单排配筋剪力墙,1个为带斜筋的双向单排配筋剪力墙.在试验基础上,对比分析其承载力、延性、刚度、滞 回特性、耗能能力及破坏特征等抗震性能,建立其极限承载力简化计算模型.研究表明:带斜筋单排配筋乙形截面 剪力墙的抗震性能明显优于普通双向单排配筋剪力墙,能更好地满足多层住宅结构抗震设计要求. [关键词]混凝土;斜筋;单排配筋:剪力墙;抗震 [中图分类号]TU375 [文献标识码]A [文章编号]1002-8498(2014)09-0063-06 Seismic Performance of Z-shear Wall with Bidirectional Single Row of Steel Bars and Inclined Reinforcements Zhang Jianwei' Hu Jianmin' Yang Xingmin2 Cao Wanlin' Cheng Huanying' (1.College of Architecture and Civil Engineering Beijing Unitersity of Technology Beijing 100124 China; 2.China Construction Engineering Design Group Corporation Limited Beijing 100037 China) Abstract:To satisfy the development requirements for the multi-story residential structure in seismic fortified areas the reinforced concrete (RC for short)shear wall structure with bidirectional single row of steel bars and inclined reinforcements and bination with part of permanent formwork construction technology is proposed.Compared with traditional clay-brick structure it has better seismic performance energy-conserving and environment-protective.Compared with normal RC shear wall structure it has simpler construction and lower cost.For investigating the seismic perform...
施工技术 2010年6月 78 CONSTRUCTION TECHNOLOCY 第39卷第6期 布袋注浆桩施工技术改进 唐经华,邱敏 (武警水电第二总队,江西南昌330096) 【摘要]东南沿海某铁路软基处理工程,由于部分路基处于滨海冲积平原,因此在局部地段采用布袋注浆桩新技术 对淤泥土层加固.介绍布袋注浆桩发展现状、工艺原理、工艺特点、改进后的施工工艺.结果表明,采用改进后的 振动沉管法具有成本低、工效高和工序简单等优点.通过改进施工技术,简化了布袋注浆桩的工艺流程,提高了工 效,节省了工程投资. 【关键词]基础工程;布袋注浆桩;软基处理;技术改进 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2010)06-0078-02 Improvement on Construction Technology of Bag Grouting Pile Tang Jinghua Qiu min (No.2 Hydropower Force of Armed Police Nanchang Jiangxi 330096 China) Abstract:Based on soft foundation treatment of some railway in southeast coast area bag grouting pile is adopted in partial segment because partial roadbed locates in coastal alluvial plain.The development technology principles characteristics and improved technology of bag grouting pile are introduced.The results show that there are many advantages of low cost high performance simple process in improved vibration paction method.Besides after the construction technology is improved technology process of bag grouting pile is simplified and efficiency is enhanced which can save engineering cost. Key words:foundation engineering;bag grouting pile;soft foundation treatment;technical improvement 铁路路基工程施工中经常会遇到软土地基问题,1.2工艺原理 控制软土地区的地基沉降,就必须结合工程与环境条 布袋注浆桩工艺是以土工织物袋和注浆浆液形成 件,对不符合要求的软弱地基采取有效的加固处理措类似圆柱状硬化体来加固土体的软土地基处理工艺, 施,使工后沉降满足工程需要.软土地基处理有垫层是软土分层注浆技术和土工织物综合应用的新技术. 法、预压法、复合地基法、夯实法和灌浆法等常用方法.其方法是将浆液注人预先埋设于软土中的土工布袋 东南沿海某客运专线铁路部分路基处于滨海冲击中,形成直径为30~40cm的圆柱状或葫芦串状桩体, 平原,地基存在深厚软弱土层.在局部地段设计采用 注浆浆液由水、水泥和细砂、粉煤灰等掺和料组成....