施工技术 2011年4月下 48 CONSTRUCTION TECHNOLOGY 第40卷第339期 马来西亚吉隆坡珍珠塔超高超大板式 预应力转换层施工技术 刘晓生,黄征,王振兴,王卫新,于宁,范乔,单文奇 (北京城建北方建设有限责任公司,北京101301) [摘要]马来西亚吉隆坡珍珠塔转换层通过采取先进的技术创新理念,优化结构转换层设计:变“梁式结构转换层” 为“板式预应力转换层”的设计方案.认真、周密、合理地进行施工部署,将施工结构转换板混凝土分②次浇筑,同 时进行模架方案设计,并通过实施过程中一系列的预控、监控、模拟试验等措施顺利实现工期、质量及成本等目标; 通过变更转换层结构设计形式既降低了施工难度,又降低了工程成本. [关键词]珍珠塔;结构转换层;施工控制;模拟试验 [中图分类号]TU973.12 [文献标识码]A [文章编号]1002-8498(2011)08-0048-03 Construction Technology of Super-high and Mass Prestressed Transfer Slab in Pearl Tower Kuala Lumpur Malaysia Liu Xiaosheng Huang Zheng Wang Zhenxing Wang Weixin Yu Ning Fan Qiao Shan Wenqi Beijing Urban Construction North Construction Co.Ltd.Beijing 101301 China) Abstract:Based on characteristics of transfer floor construction in Pearl Tower Kuala Lumpur Malaysia authors change transfer beam to prestressed transfer slab by means of adopting advanced innovative technique concept to optimize consultant's original design.By serious careful and reasonable design for construction the concrete of the transfer slab is poured by two times and construction scheme of formwork and scaffold is designed.Authors achieve original target of progress quality and cost by series of measures of pre-control monitoring and simulating test.Changing structure design scheme of the transfer floor can lower the construction difficulty as well as construction cost. Key words:Pearl Tower;transfer floor;construction control;simulation test 1工程概况 2优化设计方案 马来西亚吉隆坡珍珠塔工程为高级公寓,建筑2.1原有设计方案 面积11.3万m2 地下1层,地上43层.建筑高度 原设...
2015年10月上 施工技术 第44卷第19期 CONSTRUCTION TECHNOLOGY 117 D0I:10.7672/8js2015190117 面板式土压平衡盾构掘进参数试验研究 何占峰 (北京市南水北调工程质量监督站,北京100142) [摘要]以北京市某工程盾构施工为背景,研究了盾构施工对地层影响的主要参数,试验了不同主要参数下对地层 的影响距离和大小,同时也提出了一种新的出土量衡量方法.通过现场试掘进结合监测数据,得出对地层变形影 响最小的最佳掘进参数组合,五环路最终沉降值在无任何加固措施的情况下仅为设计控制值的50%左右. [关键词]地下工程;盾构;面板式土压平衡盾构;掘进参数;变形;试验 [中图分类号]U455.43 [文献标识码]A [文章编号]1002-8498(2015)19-0117-05 The Experimental Study on the Driving Parameters of the Panel EPB Shield He Zhanfeng Quality Surveillance Institution of Beijing Souh-North Main Canal Construction Beijing 100142 China) Abstract:Based on the shield engineering practice in Bejing this paper researched the main parameters on the formation of shield construction tested the effects of distance and size of the main parameters under different formations and also proposed a new method to measure the amount of excavated by trial excavation site bined with monitoring data obtained with minimal impact on the ground deformation optimal bination of tunneling parameters.Fifth ring road in the final settlement value of the case without any reinforeement measures is only about 50%of the designed control value. Key words:underground;shields;EPB shields;driving parameters;deformation;testing 0引言 团有限责任公司承建,输水隧洞东起来广营桥西北 随着盾构技术不断完善,盾构法施工不仅在地 侧,西至仰山桥北侧(仰山大沟东侧),隧洞由东到 铁工程得到广泛应用,在南水北调地下输水隧洞工 西从顾家桥附近由五环外进入五环内,再从北苑桥 程也得到应用.北京市南水北调东干渠工程,输水 西侧由五环内出五环,标段风险源众多,共计4个特 隧洞长约44km 全线地下隧洞均采用盾构法施工, 级、4个一级、1个二级、1个三级风险源以及多栋建 线路沿东北五环路设计,穿越沿线有大量的建筑 筑物,其中盾构过五环路掘进一级风险源具体位置 物、道路、桥梁、轨道交通、管线...
施工技术 2015年9月下 64 CONSTRUCTION TECHNOLOGY 第44卷第18期 D01:10.7672/gjs2015180064 面向施工现场的塔式起重机安全监控信息系统研究* 倪丽莎,杨静,惠秦双 (西安理工大学机械与精密仪器学院,陕西西安710048) [摘要]由于高空作业,塔式起重机司机以及设备的管理都比较粗放,导致我国起重机事故率逐年上升.采用V 嵌入OPENGL技术,设计了面向施工现场的塔式起重机安全监管信息系统,实现了高空作业塔式起重机司机以及 设备的信息化、落地化管理;并提供基于大量数据的信息分析功能,为施工现场人与物的精细管理提供依据. [关键词]信息化;施工现场;塔式起重机;安全监控;精细管理 [中图分类号]TU61[文献标识码]A [文章编号]1002-8498(2015)18-0064-03 Tower Cranes Safety Monitoring Information System for the Construction Site Ni Lisha Yang Jing Hui Qinshuang School of Mechanical and Precision Instrumental Engineering Xi'an Unirersity of Technology Xi'an Shaanxi 710048.China) Abstract:Because of the aerial work the construction site management for the tower crane driver and equipment is more extensive and the tower erane accident rate increases year by year in our country in recent years.This article designs the safety supervision information system for tower crane in construction site by VC embedded with OPENGL technology it realizes the information and landing management for the tower crane driver and equipment.And it offers information analysis function based on a large amount of data it also offers delicacy management of people and objects in construction site. Key words:information construction site;tower cranes;safety monitoring;delicacy management 1绪论 及“人的不安全行为,物的不安全状态”两方面,塔 塔式起重机是建设房屋和桥梁的主要运输工 式起重机黑匣子的主要应用对象是塔式起重机司 具,由于工作重心高、起重载荷大、运行速度快,且 机,本文设计了面向施工现场塔式起重机安全管理 工作过程中频繁启动、制动,产生较大的动载荷,塔 的信息系统,与塔式起重机黑匣子配合使用,实现 式起重机工作中蕴藏较多的危险因素;同时,塔式 了对高空作业塔式起重机监控的落地化,司...
[关键词]桩基础;结构托换;锚杆桩;设计参数;引孔;注浆;监测;变形 [中图分类号】TU753.3【文献标识码]A[文章编号】1002-8498(2012)19-0027-04 Application of Steady Pressed Anchor Pile in Structure Underpinning of Some Project Liu Jiaxin', Cao Yong² (1. Yangzhou Jianxing Engineering Construction Supervision Co. , Ltd. , Yangzhou, Jiangsu 225008,China; 2. Yangzhou Construction Engineering Quality Inspection Station, Yangzhou, Jiangsu 225009 , China)
Abstract: Based on some underground garage project, this paper introduced the application of underpinning technique with steady pressed anchor pile. According to the problems between actual situation and primary structural design, design parameters were adjusted. Because the structure is used in construction, effective control measures were adopted in the whole construction. Monitoring result shows that the data can meet the standard requirement. Key words: piles; structure underpinning; anchor piles; design parameters; guiding hole; pouring; monitoring; displacement
一结构托换是指利用其他受力构件临时性代替-0.400m标高处柱间设置钢筋混凝土连系梁,裙房 原地基基础或其他结构构件承载,待新承载的结构1层及基础混凝土强度等级为C30,下设C10混凝 构件完成施工,拆除临时受力结构构件或原基础土垫层。
【关键词]钢结构;张弦桁架;滑移支座;螺栓球;焊接球;创新 [中图分类号]TU758【文献标识码】A[文章编号]1002-8498(2015)08-0056-04 ConstructionInnovativeTechnologyoftheSteelStructure ProjectofJingjiangSportsCenter Jia Shangrui,XingZunsheng,Dou Desheng (Zhejiang Jinggong Steel Building(Group)Co.,Ld.,Shaoxing,Zhejang 312030,China) Abstract;Through the steel structure construction process of Jingjiang Sports Center, the mon construction methods and its defects about the construction technology of the cable ball joint of truss string, the lifting point design of bolt ball grid lifting construction, the pull-out sliding bearing joint, and the way to grab welding ball are introduced in detail.Also through improvement measures, the above defects is avoided and the adverse effects to structure arising from the construction is reduced. Moreover, the efficiency of construction projects is improved and the construction cost is saved. Key words;steel structures; truss string; sliding support; bolt ball; welding ball; innovation 1工程概况螺栓球为主要节点的双层网架结构,如图2b所示; 靖江市体育中心位于靖江市滨江新城,地处于配套用房钢结构主要由屋面H型钢梁及角钢支撑 靖江市三大区域的交汇点,总规划用地面积318亩组成,如图2c所示。
拉索施工 图1结构三维轴测图时,首先将拉索在地面展开,在拉索两端用钢丝绳 Fig.1 3D axonometric drawing of the structure通过卷扬机牵引提升到桁架2个端头上;索球的施 其中体育馆钢结构是由屋面6福张弦桁架和桁工一般有以下2种方式,一种为在地面先将索球与 架四周钢梁组成,如图2a所示;平台及游泳馆是以拉索连接完毕,待拉索提升到位后,在高空将索球 与撑杆焊接;另一种方式是先将索球的上半球与撑 [作者筒介]贾尚瑞,工程师,E-mail:jiashangrui88@163.杆焊接,待拉索提升到位后,再将索球的下半球与 [收稿日期]2014-05-19上半球用螺栓连接起来。
2015年4月下 施工技术 第44卷第8期 CONSTRUCTION TECHNOLOGY 53 D0I:10.7672/sgjs2015080053 靖江市体育中心体育馆张弦桁架拉索施工技术 贾尚瑞,邢遵胜1,罗斌2 (1.浙江精工钢结构集团有限公司,浙江绍兴312030;2.东南大学土木工程学院,江苏南京210096) [摘要]通过靖江市体育中心体育馆张弦桁架施工,总结了张弦桁架施工过程的总体流程方案,详细介绍了拉索开 盘、拉索安装、拉索张拉等关键施工技术,特别是拉索张拉,分别从群索张拉顺序的选择、支撑胎架对张拉索力的影 响、张拉工装和设备、张拉调整措施以及张拉监测等方面做了较全面的说明. [关键词]体育馆;钢结构;张弦桁架;索;安装;张拉 [中图分类号]TU758 【文献标识码]A[文章编号]1002-8498(2015)08-0053-03 Construction of the Truss String Cable for Gymnasium of Jingjiang Sports Center Jia Shangrui' Xing Zunsheng' Luo Bin2 (1.Zhejiang Jinggong Steel Building Group)Co.Ltd.Shaoxing Zhejiang 312030 China; 2.College of Ciwil Engineering Southeast University Nanjing Jiangsu 210096 China) Abstract:Through the construction of the gymnasium of Jingjiang Sports Center the overall flow program of truss string construction process was summarized.The key construction technologies of cable opening cable installing cable stretching were introduced in detail especially the cable stretching which prehensively illustrates from the sequence select of group cable stretching the effect of supporting frame to cable force tensioning tools and equipment tensioning adjustment measures tensioning monitoring and so on. Key words:gymnasiums;steel structures;truss string structure;cables;installation;tensioning 1工程概况 靖江市体育中心体育馆是下部为混凝土结构、 屋盖为钢结构的大型体育馆,其东西方向长约 140m 南北方向长约100m 座位总数6615个,总建 筑面积27844m2;屋盖钢结构主要由6张弦桁架 和屋面钢梁组成.如图1 2所示. 2结构特点 张弦桁架跨度约74m 高度从22.7~24.1m不 图1结构三维轴测图 等,断面为倒三角形式,其结构形式如图3所示;桁 Fig.1 3D axonometric drawing of the s...
[关键词]钢结构:网架;提升;非线性;数值模拟 [中图分类号】TU311.41;TU758 [文献标识码]A [文章编号]1002-8498(2014)14-0103-04 SimulationoftheConstructionProcessoftheSteelSpaceTruss StructureintheNatatoriumofJingjiangSportsCenter Jia Shangrui,Xing Zunsheng,Xu Dehao,Lou Feng (Zhejiang Jinggong Steel Building Group Co.,Lad.,Shaoxing,Zhejiang 312030,China) Abstract:The steel space truss structure in the natatorium of Jingjiang Sports Center is posed of two .pieces double space truss structure with different elevation, and it applies the construction of accumulation promotion and high-altitude in-situ assembling. Nonlinear finite element analysis of the construction process verified the feasibility of this technique, also the engineering application value and thematters of attention,parameter setting of the simulation analysiswere introduced systematically. Key words;steel structures; space truss;lifting; nonlinear; simulation 1工程概况 靖江市体育中心游泳馆网架钢结构是以螺栓 球为主的双层网架;整个网架结构由一块面积约 体育馆 6200m的水平网架和一块面积约920m的倾斜网 架连接组成。
Fig.1 Space truss structure 由于提升过程中网架受力状态及边界条件等 与原结构设计中不同,同时累积提升施工工艺较复 [作者简介]贾尚瑞,工程师,E-mail:jiashangrui88@163. 杂,故需要采取计算机仿真分析的手段,对施工过 [收稿日期]2013-07-18 万方数据
104 施工技术 第43卷 区域2 区域1 区域3 图2网架施工分区 Fig.2Construction division for the space truss 图3区域1网架分块 Fig.3The space truss division for area 1 程进行模拟分析。
2012年6月上 施工技术 第41卷第366期 CONSTRUCTION TECHNOLOGY 105 青岛高新区创业中心工程单元式幕墙设计与施工 吴书义,王胜,董成 (青建集团股分公司,山东青岛266071) [摘要]单元式幕墙是通过单元板块的相互插接形成等压腔来确保幕墙水密、气密等各项性能的新型建筑围护结 构,青岛创业中心工程大面积采用了该体系,取得良好的效果.结合该工程幕墙的设计特点、不利点的设计计算及 单元板块的组装、转接件的安装,单元板块的吊装等施工技术进行了闹述,并介绍了施工过程中的质量控制要点. [关键词]幕墙:设计:施工技术;质量控制 [中图分类号】TU228;TU767.5 [文献标识码]A [文章编号]1002-8498(2012)11-0105-05 Design and Construction Technology of Unit Curtain Wall of the Innovation Center Project in Qingdao High-tech Park Wu Shuyi Wang Sheng Dong Cheng (Qingjian Group Co.Ld.Qingdao Shandong 266071.China) Abstract:Unit curtain wall is a new building envelope which assures water tightness air tightness and other properties through constant pressure cavity formed by unitized panels inserted to connect each other. Innovation Center project adopted this system on a large scale and had gained good effects.This Paper bined with the curtain wall design characteristics and drawback design calculation of this project discusses the construction technology on assembly of unitized panels installation of switchover pieces lifting of unitized panels.And it introduces the main points of quality control under construction.Some experiences used for reference are provided for the construction of unit curtain wall. Key words:curtain walls;design;construction;quality control 单元式幕墙是指将各种幕墙构件和饰面材料高110m;B楼19层,高94.2m;C楼10层,高 在车间内加工完成,并依据设计要求组装成一层或52.2m:D楼5层,高43.8m.4座塔楼错落有致,塔 多层楼高的整体板块,然后运至施工现场进行整体楼之间由裙房互相连通,是集行政、办公、科研于一 吊装,与建筑结构上预先设置的挂接件精确连接,体的综合性建筑.本工程外立面装饰以玻璃和铝 并根据主...
2017年9月下 施工技术 第46卷第18期 CONSTRUCTION TECHNOLOGY 19 D0I:10.7672/5j52017180019 青岛海上嘉年华冰宫乐园空间异形网格析 架体系施工技术 陈斌12,樊文杰3,郭文豪4 (1.湖南大学土木工程学院,湖南长沙410082:2.建筑安全与节能教育部重点试验室(湖南大学), 湖南长沙410082;3.浙江精工钢结构有限公司,浙江绍兴312030; 4.武汉理工大学土木工程与建筑学院,湖北武汉430070) [摘要]青岛海上嘉年华工程冰宫乐园钢结构由单曲平面桁架交叉组成空间异形网格钢罩,整体是一个不规则、不 等高的异形体,呈“豌豆”状.冰宫钢结构造型复杂,大部分桁架为弧度较大的异形桁架,钢桁架类型多,安装定位 难.通过采用分段分块吊装,内场外场结合吊装,合理布置支撑圆管,有效的焊接工艺,严格的防腐蚀措施,保证了 结构安装的精度,提高了施工质量和效率,节约了材料,保障了施工安全. [关键词]钢结构;安装;桁架;分块吊装;定位;施工技术 [中图分类号]TU758.11[文献标识码]A [文章编号]1002-8498(2017)18-0019-03 Space Shaped Grid Truss System Construction Technology of Qingdao Maritime Festival Ice Palace Park CHEN Bin'.2 FAN Wenjie GUO Wenhao (1.College of Civil Engineering Hu'nan University Changsha Hu'nan 410082 China;2.Key Laboratory of Building Safety and Efficiency of the Ministry of Education Hu'nan University Changsha Hu'nan 410082 China;3.Zhejiang Jinggong Steel Building Group Co.Ld.Shaoxing Zhejiang 312030 China;4.School of Ciril Engineering and Architecture Wuhan University of Technology Wuhan Hubei 430070 China) Abstract:Qingdao Maritime Festival project Ice Palace Park steel structure is a cross-shaped steel mesh cover consisted of crisscross type steel structure truss system which is posed of single plane truss in space a whole structure is irregular high-shaped body and the shape is a‘pea' In this projeet.for the steel structure type of the Ice Palace is plex and most of the trusses are large are shaped and the types of steel trusses are various the installation l...
2016年8月上 施工技术 第45卷第15期 CONSTRUCTION TECHNOLOGY 57 D0I:10.7672/8js2016150057 青岛某新城售楼处网架结构施工监测与可靠性分析* 张纪刚,孙思博,张春巍,韩永力,孙海超 (青岛理工大学土木工程学院,山东青岛266033) [摘委]介骨岛菜新城售棒处网架结构施工过程中出现的向题及施工方法,进了卸我过程中的仿真分析与健 康监测.针对种轻大面积弹体多点支撑的网架结构特点,设计网架的监测方亲,包监测条件、测点布置与监 测方法.与MIDAS/GEn有限元件的理论分析结果进行对比,轮证该结构在面重荷载下的吊装容金性.同时,进 行整个卸载过程的理论据与监测数据的对比分析.最后,针对网架结构施工过程存在的施工偏差对其进行了可 靠性分析. [关键词]铜传构;网架;有限元分析;监测;可性 [中图分类号]TU356 [交献标识码]A [交章编号]1002-8498(2016)15-0057-05 The Erection Monitoring and Reliability Analysis of Space Truss Structure for the Sales Office of One New City in Qingdao Zhang Jigang Sun Sibo Zhang Chunwei Han Yongli Sun Haichao (School of Ciuil Engineering Qingdao Technological University Qingdao Shandong 266033 China) Abstract:The construction method of space truss structure of sales office is introduced which located at one new city of Qingdao and unloading simulation and monitoring for the space truss structure were done.For the particularity of space truss structure of this large-area monomer multipoint support bining with the characteristics of the space truss structure the monitoring scheme of space truss structure was designed including monitoring conditions arrangement of measuring points and monitoring method pared with the analysis results of the theory of finite element software MIDAS/Gen to verify the safety of the structure under the gravity load.The parisons between theoretical data and monitoring data during the whole process of unloading were done a certain reference was provi...
2010年6月 施工技术 第39卷第6期 CONSTRUCTION TECHNOLOGY 119 青岛大剧院装饰铝板安装对钢结构变形影响分析 李建国,王怀信2,杨兴富3 (1.青岛地下铁道总公司,山东青岛266022;2.青岛国信大剧院有限公司,山东青岛266071; 3.上海建工(集)总公司,上海200120) [摘要]基于青岛大剧院屋盖钢结构工程,建立计算模型,在不同荷载组合下,对龙骨和装饰铝板分别进行分析计 算.结果表明,龙骨和装饰铝板荷载所引起的变形较大,约占全部荷载变形量的一半.在施工中,根据计算分析结 果,采取相关技术措施,把差异沉降降到最小,满足设计建筑效果的要求,取得了较好的效果. [关键词]青岛大剧院:钢结构:计算分析:变形 [中图分类号]TU745.3 [文献标识码]A[文章编号]1002-8498(2010)06-0119-03 Effect Analysis of Decorating Aluminum Panel Installation on Steel Structure Deformation in Qingdao Grand Theatre Li Jianguo' Wang Huaixin? Yang Xingfu3 (1.Qingdao Subway General Co. Qingdao Shandong 266022 China;2.Qingdao Guoxin Grand Theatre Co. Lad.. Qingdao Shandong 266071 China;3.Shanghai Construction Group Shanghai 200120 China) Abstract:Based on the steel roof engineering of Qingdao Grand Theatre calculation model is built. Under different load binations keel and decorating aluminum panel are respectively analyzed and calculated.The results show that the deformation caused by keel and decorating aluminum panel is bigger than half of total load deformation.The differential settlement can be reduced to minimum by adopting corresponding technology measures according to calculation results during the construction.Thus it can meet the design demands of architecture effect.And good effect is achieved. Key words:Qingdao Grand Theatre;steel structure;calculation and analysis;deformation 1工程概况 青岛大剧院屋盖钢结构主结构为x向,主构件间 距为8.4m y向主构件为间距8m的“井”字形空间钢 桁架.其中规定钢结构中南北方向构件为y向,垂直 于y向即东西方向的构件为x向.桁架构件采用矩 形、方形截面钢管和热轧H型...
【关键词】钢结构;屋面;有限元分析;局部高温;力学性能 [中图分类号】TU758.11[文献标识码】A[文章编号】1002-8498(2013)21-0100-03 TheMechanicalPropertiesofSwimmingandDivingHall of QingdaoSports CenterUnder TemperatureRising Zhang Jigang’,Tao Guansi²,Ning Wei,Rong Qintao',Liu Bin (1.School ofCivil Engineering,QingdaTechnologicalUniversity,Qingdao,Shandong266033,China; 2.Qingdao Bohai Construction Group Co.,Lid.,Qingdao,Shandong 266001,China) Abstract:The roof of Swimming and Diving Hall of Qingdao Sports Center is a steel roof with plex structure,large span,multiple-shaped curved surface. The finite element software ANSYS was used to analyze the mechanical behaviour of the roof structure under local temperature rising.The results show that high temperature results in the yielding of structural ponents and the development of plastic deformation.After the middle area warms up, the vertical displacement efect of network is the largest. Above average area and upper left area are adverse areas in the process of temperature rising. Key words; steel structures; roofs; finite element analysis; local temperature rising; mechanical behaviour 青岛市体育中心游泳跳水馆坐落于美丽的青 岛市东部浮山新区,该体育馆的屋盖形式为复杂的 多曲面异形钢屋盖,屋盖的跨度:南北向为101.2m, 东西向为130m。
该建筑的最低处标高为 -10.800m,最高处标高为30.700m。
网架的结构 形式为焊接空心球节点四角锥网架。
该网架共设有46个支座,其中室内有42个周图1青岛体育中心游泳跳水馆建筑效果 边支撑柱,支撑形式为弹性支座,室外有4个落地支Fig. 1Architectural effect of Swimming and Diving 撑点,支撑形式为刚性支座。
网架结构新颖,外观Hall of Qingdao Sports Center 非常形象美丽,看起来像海中的大贝壳。
[关键词】钢结构;管桁架;网壳;胎架;拼装;焊接 [中图分类号]TU758.1[文献标识码]A[文章编号]1002-8498(2014)02-0024-04 Construction oftheSteelStructuresofPlantMuseumin WorldGardeningExhibitionQingdao
(1.Qingdao Building Engineering Quality Supervision Station,Qingdao,Shandong 266071,China; 2.Qingdao Engineering Construction Supervision Co.,Lad.,Qingdao,Shandong 266071,China; 3.Qingdao Jian'an Construction Group Co.,Lad.,Qingdao,Shandong 266071,China; 4.Qingdao Century Square Investment Co.,Lad.,Qingdao,Shandong 266071,China) Abstract:Combined with the steel structure features of plant museum of the World Gardening Exhibition Qingdao, such as the truss and shells have large span and areas, it is easy to deform for integral transportation,the construction techniques of ponents processing in factory,assembly on site,and segmental hoisting and assembly are applied. The construction of the steel structures processing, assembling,welding and segmentalhoisting of tube truss and single-layer shell are introduced in detail. it ispointed out that after welding of the steel structures,each unit uses cycle proportional unloading. Key words:steel structures; tube truss; shells;jig;assembly;welding
1工程概况单体B单体D 2014年青岛世界园艺博览会场区位于青岛市 百果山森林公园,由植物馆、主题馆、梦幻科技馆等 10余个场馆组成。
[关键词】高层建筑;地震;剪力;门式拉索桁架;钢板梁;屈曲分析 [中图分类号】TU318.8[文献标识码]A[文章编号]1002-8498(2015)10-0009-04 StructuralScheme Optimization andDesignDifficultiesAnalysisof ShaanxiYanchangPetroleumHeadquartersTower ZhaoHong'an,Wang Min,XinLi,Wang Xinhua (China Northwest Architecture Design and Research Institute Co.,Lid.,Xi'an,Shaanxi 710018,China) Abstract:The Shaanxi Yanchang Petroleum Headquarters Tower is 195.45min height,and the structural form of the building is concrete filled steel tubular column and H-section steel beams bining reinforced concrete core tube.Anoutriggersystemhasbeen setled inalayerof thebuilding.Inorderto meet the requirement of the outsideframe to bear the seismic shear force,the structural schemehas been modified,and the concrete tubein the staircase has been replaced by the steel column with concentrically steel frames.The result of the calculation shows that the effect of this structure modification is significant. Furtheore,thediffcult pointanditssolutionf thestructuraldesignsuchasthestructureof thecurtain wall of the mid hall and the awning of the entrance is showed. Key words:tall buildings; seismic; shear force;gate cable truss; steel plate beam;buckling analysis 1工程概况 陕西延长石油科研中心位于西安市高新区,总 建筑面积21.8万m²,其中地上15.2万m,地下 6.6万m²。
[关键词】降雨强度;边坡稳定性;安全系数;降雨持时;数值模拟 [中图分类号]TU432;U416.14 [文献标识码]A [文章编号]1002-8498(2013)05-0078-04 NumericalSimulationStudy onSlopeStabilityDuringRainfall Intensity Sun Yongshuai', Jia Cangqin²,Wang Guihe²,Hu Ruilin',Zhou Wuping² (1.KeyLaboratryfEngineringGemechanicsIstituefGeolgyandGeophysis, Chinese Academy of Science,Beijing 100029,China; 2.School of Engineering and Technology,China University of Geosciences(Bejing),Beijing 100083,China) AbstractInthispaper,therearewfactorsintensityfrainfalland durationfrainfallwhichaft the stability of slope were studied based on numerical simulation. The results show that under the same slope of the thickness, the same rainfall time, the greater rainfall intensity, the faster the safety factor decline, the greater change in soil pore water presure, the greater change of displacement of soil. Finally,the displacementofsoilwillnhance,the stabilityof slopewill decrease;The slopeofbigrainfall intensitylidesbefore the slopefmallainfallintensity,hegreater theranfallntensityis,thefaster h stable state of the slope gets.The infiltration depth of the slope of big rainfall intensity is always greater than the infiltration depthof the slope of small rainfall intensity,the safetyfactor of the slopeofbig rainfall intensity is always lower than the safety factor of the slope of small rainfall intensity. Key wordsrainfall intensity;slope stability;safety factor;rainfall duration;numerical simulation 本文以人工从现场工地取土所制作边坡为研 边坡土体内部的渗流变化情况。
2012年9月上 施工技术 第41卷第372期 CONSTRUCTION TECHNOLOGY 63 降雨对边坡稳定性影响研究综述 孙永帅,贾苍琴,王贵和 (中国地质大学工程技术学院,北京100083) [摘要]提出降雨对边坡稳定性影响研究的意义,指出降雨人渗是导致边坡失稳的主要诱发因素,从理论研究现 场试验和室内试验3方面综述了降雨入渗对边坡稳定性影响的研究现状.归纳和总结了饱和-非饱和理论和边 坡稳定性分析方法、边坡稳定性变化规律及影响因素.其中,重点介绍了极限平衡法、极限分析法、有限元法等 相关方法,并且指出了它们的优点和存在的相关问题,在此基础上综述了相关试验研究现状,并指出其中的不足. 最后针对目前研究中所存在的问题就今后的发展方向提出了自己的看法. [关键词]边坡稳定性;降雨;非饱和土;渗流;试验 [中图分类号]TU43 [文献标识码]A [文章编号]1002-8498(2012)17-0063-04 Overview of Research on Stability of Slope During Rainfall Sun Yongshuai Jia Cangqin Wang Guihe School of Engineering and Technology China University of Geosciences Beijing 100083 China) Abstract:The significance of studying the stability of slope during rainfall is highlighted in this paper. Rainfall infiltration is the main factor that causes slope instability.This paper summarizes current research on slope stability during rainfall from three aspects of theoretical research field test and laboratory test.Saturated-unsaturated theory and slope stability analysis method are summarized as well as principles governing the change of slope stability and influence factors.Among them limit equilibrium method limit analysis method and finite element method are introduced in detail with their advantages and disadvantages highlighted.After that this paper summarizes the current situation of model tests and pointed out their shortings.At last the authors presented their own ideas on further development with respect to the problems existing. Key words:slope stability;rain;unsat...
施工技术 2015年7月上 64 CONSTRUCTION TECHNOLOGY 第44卷第13期 D0I:10.7672/sgjs2015130064 降雨与地震共同作用下碎石土边坡的稳定性分析* 李晓莲,余云燕2,陈志敏2 (1.天水师范学院,甘肃天水741001;2.兰州交通大学土木工程学院,甘肃兰州730070) [摘要]为研究降雨与地震共同作用条件下碎石土边坡稳定性的影响机制,通过建立楼房山隧道罐子沟端滑坡防 治工程数值计算模型,分别计算并分析了降雨单独作用、地震单独作用及降雨与地震共同作用条件下边坡应力场、 位移场、塑性区及剪应变增量的变化规律,从而得出3种情况下边坡稳定性的破坏机理.研究结果表明,降雨与地 震共同作用下碎石土边坡的稳定性比降雨单独作用或地震单独作用时的稳定性差,更容易发生滑坡、泥石流等地 质灾害. [关键词]边坡;降雨;地震;稳定性;有限元分析 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2015)13-0064-08 Analysis on Gravel Slope Stability During Rainfall and Earthquake Li Xiaolian' Yu Yunyan2.Chen Zhimin2 (1.Tianshui Normal University Tianshui Gansu 741001 China; 2.School of Civil Engineering Lanzhou Jiaotong University Lanhou Gansu 730070 China) Abstract:In order to research the affecting mechanism of gravel soil slope stability under the condition of rainfall alone earthquake alone both rainfall and earthquake this paper established the three- dimensional numerical model of Loufangshan gravel landslide and analyzed the change rule of the stress field displacement field plasticity zone and shear strain increment of slope under the condition of both rainfall and earthquake.The research result shows that the stability of gravel soil slope is decreased greatly under the condition of both rainfall and earthquake and more prone to landslides or debris flow. Key words:slope;rainfall;earthquake;stability;finite element analysis 0引言 主要机理和一般的力学机理.文献[3]通过大型模 在岩土工程领域,大量学者致力于研究降雨或 型试验研究降雨诱发三峡库区碎石土滑坡变形破 地震单一因素对边坡稳定性的影响,如文献[1]通 坏的机理,分析了不同降雨强度、降雨历时及坡度...
施工技术 2017年6月下 16 CONSTRUCTION TECHNOLOGY 第46卷第12期 D0I:10.7672/8js2017120016 降低屋面工程渗漏率的几点思考 霍瑞琴 (山西建筑工程(集团)总公司,山西太原030002) [摘要]为降低屋面工程渗漏率,从制定标准规范入手,提出树立“以排为主”的思想.采用结构找坡、加大屋面坡 度、对种植屋面的结构层采用防水混凝土,当屋面结构不能采用结构找坡时,应在屋面上增设坡屋顶的做法,才是 大幅度改善屋面防水功能的正确选择. [关键词]屋面工程;渗漏;结构找坡;防水混凝土 [中图分类号]TU761.11 [文献标识码]A [文章编号]1002-8498(2017)12-0016-02 Reflections on Reducing Leakage Rate of Roof Engineering HUO Ruiqin Shanxi Construction Engineering Group Co.Taiyuan Shanxi 030002 China) Abstract:In order to reduce the leakage rate of roof engineering this paper puts forward the idea of 'taking the platoon as the main factor'from the development of the standard.Some methods are put forward which are the right choice to greatly improve the roof waterproof function including applying structural slope increasing roof slope applying waterproof concrete for planting roof structure layer and when the roof structure can not adopt the structural slope the slope roof should be added on the roof. Key words:roofs;leakage;structural slope;waterproof concrete 为贯彻落实2016年12月26日全国住房城乡施》中对桂林市的屋面进行了调查,调查结果显示: 建设工作会议关于“加快工程建设改革步伐,切实 有39%的房屋发生渗漏,在所渗漏的房屋中平屋面 树立标准权威”的要求,住房和城乡建设部以创新、 占86%,平坡结合屋面占11%,种植屋面占3%. 协调、绿色、开放、共享的发展理念,将重点在装配 被访建筑中平屋面和种植屋面都有渗漏情况发生, 式建筑、门窗、防水、装饰装修和可再生能源等领域 坡屋面没有渗漏情况.综合对比分析:种植屋面渗 推进住房标准化水平,通过完善我国的标准体系, 漏情况较多、平屋面次之,而坡屋面防渗漏的效果 实现与国际先进标准技术指标的全面对接,从而提 最好.这个结果和从业内专家了解掌握到的情况 升住房的居住品质. 基本一致. 屋面防水是建筑防水工程的重要部分,其渗漏 从目前走访调查的情况看,种植屋面与种植顶 问题是建筑工程中多年来一直未能很好解决的质 板的渗漏率也是不同的,种植屋面的渗漏率要远远 量通病.根据住房和城乡建设部“关于提高建筑标 大于地下种植顶板.究其原因主要...
[关键词]公路工程;隧道;防水;施工技术 [中图分类号]U455 [文献标识码]A [文章编号〕1002-8498(2016)24-0094-03 ConstructionofNaozhiExtra-longTunnel Wang Xinchuan,Lei Yangchuan,Cui Huafeng,Lei Fan (China Constructin Sixth Engineering Division Bridge Co.,Lid.,Chongqing 402260,China) Abstract:In order to solve the safety problems during the construction of shallow buried segment at the entrance of Naozhi extra-long tunnel,such as the difficulties of long distance power and pressed air supply,the bination of natural landscape and construction at the entrance and the waterproof and drainage in the tunnel,considering the characteristics of the extra-long tunnel itself,a series of construction measures are put forward,such as the bination of the landscape and the greening at the entrance,excavation methods for different surrounding rock,the waterproof and drainage and the power supply,the usage of air bag in pressed air supply.Different solutions for different problems ensured the pletion and acceptance of the tunnel. Key words;road construction; tunnels;waterproofing; construction 0引言 共性的施工难度,也有着每个隧道特有的难点,但 公元前2180~前2160年,在幼发拉底河下修 特长隧道的施工一直是各类隧道施工中难度最大 建的一条约900m长的砖衬砌人行通道,是迄今已 的类型之一。