施工技术 2010年9月 78 CONSTRUCTION TECHNOLOGY 第39卷第9期 黄土地区某深基坑工程降水试验研究 武乾,赵浩,林源,胡长明 (西建筑科大学土木工程学院,陕西西容710055) [接]以地处湿性黄土地区的菜深基悦工程降水设计为背墨,基于降水试,采用“试算法”得出了舍的降水 设计参数,在此基上,运用“大并法”进行基悦降水设计,初步拟定了程降水方亲:利用非饱和土非穆定济流 理论,对建场区障水故果进行了数棋拟与分析,得到了基内外浴流扬在降水过程中的变化规律,为降水方意 的优化设计提供科学依据. [关键词]深基悦:降水设计:湿陪性黄土:地铁季站:数值横拟 [中分类导]TU753.1 [立献标识移]A[支章编]10028498(2010)09-0078-04 Experiment Research on Dewatering of a Deep Foundation Excavation in the Loess Region Wu Qian Zhao Hao Lin Yuan Hu Changming Civil Engineering College Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China) Abstract:With dewatering design of some deep foundation excavation engineering in the loess region basing on the dewatering test the authors get appropriate parameter by test method.On this basis they use Great Well Method to design the foundation excavation and draw up an initial dewatering scheme. Besides using the theory of unsaturated soil dewatering effects is simulated on the proposed site area and variation seepage inside and outside the foundation exeavation is obtained in the proeess of dewatering.As a result it provides simulated scientific basis for optimization design of dewatering scheme. Key words:deep foundation excavation:dewatering design:collapsibility loess:subway station:numerical simulation 1工程概况 春1土层物理力学参 某地铁车为地下4层岛式站台车站,标准段结 Table 1 Physical and mechanical properties of soil 构外包尺寸20.9m×24 46m(宽x高),季落长度 选系 压像 度/ 盐聚力/内摩 土居 / 泊松比数/ 135.6m 基杭标准段宽度20.9m 盾构井段宽度为 m kPa角/(o) (m/d) (MPa-1) 28.2m 顶部覆土2...
2010年3月 施工技术 第39卷第3期 CONSTRUCTION TECHNOLOGY 11 贵阳奥体中心主体育场异形柱施工技术 冯云,邹侠,盛圳 (中建三局第一建设工程有限责任公司西部公司,贵州贵阳550002) [摘要]贵阳奥体中心主体育场南北看台有36根混凝土弧形柱,西看台有20根钢结构Y形柱和10根混凝土Y形 柱.由于施工荷载大,仅靠模板体系承担施工荷载困难.经过计算,决定通过合理分段,依靠丫形柱和弧形柱自身 的承载能力承担施工荷载.弧形柱分3步施工,Y形柱分5步施工.为保证弧形柱和Y形柱的施工质量和清水混 聚土效果,采用定型钢模板施工,工厂制作,现场拼装.主要介绍了弧形柱和丫形柱的模板体系及支撑体系的选择 以及施工技术. [关键词]贵阳奥体中心;主体育场;弧形柱;Y形柱 [中图分类号]TU745.2 【文献标识码]A 【文章编号]1002-8498(2010)03-0011-03 Construction Technology of Spatial Shape Column of Main Stadium in Guiyang Olympic Sport Center Feng Yun Zou Xia Sheng Zhen (The West Company The First Construction Engineering Limited Company of China Construction Third Engineering Bureau Guiyang Guizhou 550002 China) Abstract:The north and south stand has 36 concrete arc-ghape columns and the west stand has 20 steel structure Y-shape columns and 10 concrete Y-shape columns in the main stadium of Guiyang Olympic Sport Center.Because of heavy construction load it is difficult for formwork system to bear construction load.By calculation self-bearing capacity of these Y-shape and arc-shape columns is enough to undertake construction load with rational construction segment.So the arc-shape column is constructed for three segments and the Y-shape column is constructed for five segments.To assure their construction quality and fair-faced concrete effect these columns are constructed with shaped steel formwork which is made in factory and assembled on site.In this article the authors mainly show selection and construction technology of f...
施工技术 2011年10月上 18 CONSTRUCTION TECHNOLOGY 第40卷第350期 贵阳国际会展中心大型不对称筒式悬挂 建筑施工应力控制 戴立先,魏晓祥,蒋官业,陈小伟,代舒 (中建钢构有限公司,广东深圳518040) [摘要]贵阳国际会议展览中心C2201大厦为悬挂式建筑,内部受力形式非常复杂.在T程中运用计算机仿真模 拟分析技术对施工工序进行模拟,根据迭代理论设置钢结构施工变形预调值,调整施工过程中建筑体的位形,并通 过千斤顶施加或卸载对建筑体的作用力调配建筑体的整体位形及内部应力,从而实现了安装过程中结构自由受力 状态,并且确保了竣工时建筑体的几何形态、受力状态符合理论设计值. [关键词]高层建筑;悬挂结构;筒式结构;应力控制;仿真模拟;迭代法 [中图分类号]TU745.1 [文献标识码]A [文章编号]1002-8498(2011)19-0018-04 Construction Stress Control of Large Asymmetric Tube Suspension Building of Guiyang International Conference Center Dai Lixian Wei Xiaoxiang Jiang Guanye Chen Xiaowei Dai Shu China Construction Steel Structure Co.Ltd.Shenzhen Guangdong 518040 China) Abstract:C2 201 building in Guiyang international conference is a suspension building and its force form is plicated.Authors use puter simulation technology to simulate the construction process. According to iteration theory they set preset value in the deformation of steel structure construction adjust the building configuration in the construction process.Besides by imposing or uninstalling the force with jack authors adjust the whole configuration and internal stress of building.In this way it achieves free stress condition in the installation process and ensures the geometry of the body and the stress state to consistent with theoretical design value. Key words:tall buildings;suspension structures;tubular structures;stress control;simulation;iteration 悬挂式建筑作为一种新兴的建筑形式具有造型的现代楼宇设计,室外空间利用山地高差以及设 型新颖占地面积小并能减小地震作用等诸多优 置叠落式的大水景,形成景观式的建筑物...
2016年7月下 施工技术 第45卷第14期 CONSTRUCTION TECHNOLOGY 135 D0I:10.7672/8js2016140135 贵安综合保税区综合服务大楼屋面钢结构吊装技术 曾文,门贤君,黄晓彬,王宇浩 (中交第一公路工程局有限公司北京建筑分公司,北京100024) [摘要]以贵安综合保税区建设项目为背景,分析本工程屋面钢结构构造形式及施工难点.从工期、安全、成本等 角度考虑,选择采用移动的拼装单元架为最优技术设计方案.并详细介绍移动平台制作、安装和铝单板安装等施 工工艺. [关键词]安装工程;钢结构;屋顶;吊装;施工技术 [中图分类号]TU758.1 [文献标识码]A [文章编号]1002-8498(2016)14-0135-03 Hoisting Technology of Roof Steel Structure of Gui'an Comprehensive Bonded Zone Service Building Zeng Wen Men Xianjun Huang Xiaobin Wang Yuhao Beijing Branch of the First Highucay Engineering Bureau Co.Lid.Beijing 100024 China) Abstract:Taking Gui'an Comprehensive Bonded Zone construction project as the background the roof steel structure form and the difficulty of construction are analyzed.Considering the time limit safety and cost etc. adopting mobile assembling unit frame for optimal design is chosen At the same time the mobile platform fabrication installation and aluminum single plate installation construction technology are introduced in detail. Key words:installation;steel structures;roofs;hoisting;construction 1工程概况 外悬挑钢屋架、铝板装饰 蓝灰色钢制压顶 53.658 贵安综合保税区综合服务大楼总建筑面积 1400 49865.58m2 地上建筑面积37014.68m2 地下 12850.9m2 地上9层,地下1层,建筑计算高度为 058 It 49.75m;屋顶为钢结构造型,顶标高53.050m 钢结 构悬挑出建筑物外立面9.855m(含天沟);檐口下 92400 -0.450 方为斗拱造型和铝单板吊顶,檐口上方顶为金属彩 石瓦屋面,最内面为夹胶玻璃采光顶.檐口外挑钢 图1综合服务大楼立面 构架沿着建筑物外立面一圈布置,总长500余m(见 Fig.1 Comprehensive service building elevation 图1),为框架结构. 碳喷涂,单品铝单板及骨架质量约为300kg 铝单板 2构造形式及重难点 内衬1.5mm厚镀锌铁皮加50mm厚保温棉. 本工程屋面钢结构.总量达900t 钢结构节点均 1)难点1整个屋顶是异型钢结构,拼装顺序 为栓...
2015年2月上 施工技术 第44卷第3期 CONSTRUCTION TECHNOLOGY 89 D0I:10.7672/5js2015030089 硅灰掺量对超硫酸盐水泥水化进程的影响* 向佳瑜,余保英,李红傲 (中建商品混凝土有限公司,湖北武汉430070) [摘要]通过设计3%,5%,8%,10%4种不同的硅灰掺量配制超硫酸盐水泥($C).对其胶砂试样的力学强度进 行了跟踪测试,并测试了试样自拌合加水后10h内的水化温升,借助扫描电子显微镜和X射线衍射分析仪对试样 水化产物进行分析,得出硅灰不同掺量下SSC的力学性能、水化温升及水化产物的差异.结果表明:硅灰在SSC中 掺量为3%~5%比较适宜,对S5C的力学性能和水化进程有促进作用;试样的水化过程最大的放热峰发生30~ 6Oh 随着硅灰的掺人,试样的最大水化放热峰提前;SEM和XRD分析结果显示硅灰填充于SSC之间,使胶凝材料 具有良好的级配和密实度,而且与SSC水化产物中少量的Ca(OH)2产生火山灰效应,提高了试样的强度. [关键词]建筑材料:水泥;超硫酸盐水泥;硅灰:水化温升;活性指数 [中图分类号]TU528.04 [文献标识码]A[文章编号]1002-8498(2015)03-0089-04 The Influence of Silica Fume Content for Super Sulfate Cement Hydration Process Xiang Jiayu Yu Baoying Li Hongao China Construction Ready Mixed Concrete Co.Ltd.Wuhan Hubei 430070 China) Abstract:Four different silica fume content (3% 5% 8%and 10%respectively)was researched for preparing super sulfate cement (SSC for short).The mechanical strength and hydration temperature rise of specimens were tested from mixing to 100h and the ponent of hydration products were analyzed by scanning electron microscope and X-ray diffractometer.Then the content differences of silica fume to effect SSC hydration reaction were obtained.Experimental results show that the proper content of silica fume in SSC system is 3%~5%which has a promoting effect on the mechanical properties and hydration process.The specimens hydration process maximum exothermic peak appear in 30~60h.The advanced exothermic peak occurred went with silica fume incorporation.SEM and XRD analysis ...
【关键词】地基;沉井;刃脚;极限承载力;滑移线;数值模拟 [中图分类号]TU753 [文献标识码】A [文章编号]1002-8498(2013)19-0056-05 Analysis of UltimateBearing Capacity of Ring Cutting Curb of OpenCaissonFoundationTread Xu Wei', Chen Zhiqiang',Xu Zanyun² (1.School of Civil Engineering,Tongji University,Shanghai 200092,China; 2.Jujiang Group Co.,Ltd.,Tongxiang,Zhejiang 314500,China) Abstract:This paper discussed the soil mobility trends under the cuting curb which flow to medial during open caisson sinking. Based on the Mohr-Coulomb principle,the finite difference method was applied to diserete the α and β family characteristics equation deduced from the slip line theory,authors obtained the difference formula in the axisymmetric limiting equilibrium condition and established the bearing capacity numerical model of cuting curb.According to the tread cutting curb boundary conditions, authors adopted Matlab software to analyze the ground ultimate bearing capacity and obtained the tread time, they analyzed the ultimate bearing capacity in diferent influencing factors. The tread ground ultimate bearing capacity and the measured results were pared. Key words: foundations; open caisson; cutting curb; ultimate bearing capacity; slip line; numerical analysis 1沉井技术概述 起着至关重要的作用,所以对沉井刃脚承载力进行 对沉井的定义有多种,但一般认为把不同断面 深入分析,意义重大。
施工技术 2011年6月上 62 CONSTRUCTION TECHNOLOCY 第40卷第342期 焊接应力对开洞钢板剪力墙极限承载力的影响 兰涛1,郭彦林2,郝际平,赵思远2 (1.西安建筑科技大学土木工程学院,映西西安710055;2.清华大学土木水利学院,北京100084) [摘要]钢板剪力墙在施工过程中,为保证安装精度及避免受力后产生的噪声问题,多选用焊接连接的方式,这将 导致内填板存在较大的焊接应力与变形.通过建立精细有限元模型,研究了焊接对钢板墙受力性能的影响.计算 结果表明焊接应力与焊接变形在设计中不可忽略.首先,以开边洞钢板墙为例具体分析了施焊顺序的影响.在得 到最佳施焊方案后对有、无焊接作用下开边洞钢板墙进行比较发现,考虑焊接影响时钢板墙的极限挑剪承载力与 结构延性均有所降低.最后通过分析开边洞钢板墙的潜回曲线与能量耗散系数指出,钢板墙在进人弹塑性阶段后 具有较好的耗能能力. [关键词]精细有限元模型;焊接应力与变形;开边洞钢板剪力墙;焊接顺序;能量耗散系数 [中图分类号]TU391.9 [文献标识码]A [文章编号]1002-8498(2011)11-0062-04 Influence of Welding Stress on the Ultimate Bearing Capacity of Steel Plane Shearing Wall(SPSW)with Opening Lan Tao' Guo Yanlin2 Hao Jiping' Zhao Siyuan2 (1.Shool of Civil Engineering Xi'an University of Architeeture and Technology Xi'an Shaanxi 710055 China; 2.School of Cisil Engineering Tsinghua University Beijing 100084.China) Abstract:Welding is a mon method during the construction of steel plane shear wall(SPSW)to ensure fixing precision and avoid the noise after loading.Meanwhile welding leads to large stress and distortion in filling plates.The authors build exquisite finite element models to study the welding effects on the behavior of SPSW.It indicates that the welding stress and welding distortion can not be omitted in design.Firstly taking for SPSW with opening as example the influence of different welding sequences is analyzed and pared to obtain the optimum one.By paring SPSW with opening and that without it is found that the ultimate bearing capacity and ductil...
施工技术 2012年10月上 68 CONSTRUCTION TECHNOLOGY 第41卷第374期 灰土挤密桩法和强夯法处理,湿陷性 黄土地基的效果对比 郭小云,王敏,闫嘉庆,相兴华,白晓红 (太原理工大学建筑与土木工程学院,山西太原030024) [摘要]为研究不同方法对湿陷性黄土地基的处理效果,结合平阳高速公路建设实例,介绍了灰土挤密桩法和强夯 法在湿陷性黄土地基处理中的应用,并且通过室内试验分析比较地基加固前后的物理力学指标变化值,对单击夯 击能为1000 2000kNm的强夯法和灰土挤密桩法处理湿陷性黄土路基的效果进行了对比.结果显示,这两种不同 能级的强夯处理和灰土挤密柱法都可以提高土体的物理力学性能、消除湿陷性,且2000kNm单击夯击能的强夯 处理效果最佳,灰土挤密桩法效果次之,1000kNm单击夯击能的强夯处理效果最不显著. [关键词]地基;湿陷性黄土;灰土挤密桩;强夯;试验 [中图分类号]TU411 [文献标识码]A [文章编号]1002-8498(2012)19-0068-04 Comparison of Effect of Lime-soil Compaction Pile and Dynamic Consolidation Method to Improve Collapsible Loess Ground Guo Xiaoyun Wang Min Yan Jiaqing Xiang Xinghua Bai Xiaohong College of Architecture and Civil Engineering Taiyuan University of Technology Taiyuan Shanxi 030024) Abstract:Based on Pingyang highway construction project the improving effects of three soil treatment methods such as lime-soil paction pile dynamic consolidation methods of1O0kNmand 2 000kNm were pared in this paper through contrasting the changes of soil physical and mechanica! indexes before and after treatment.Meanwhile the improving mechanics of either lime-soil paction pile or dynamic consolidation methods for collapsible loess ground were introduced and discussed.The laboratory test result showed that dynamic consolidation methods with1000kNmand2000kNmand lime-soil paction pile were all effective to improve collapsible loess'engineering property and decrease its collapsibility.Among these three methods the strengthening effec...
【关键词】加固;钢结构;火灾;二次受力;有限元法 [中图分类号]TU391[文献标识码]A[文章编号〕1002-8498(2014)04-0043-03 SimulationAnalysisonReinforcementofSteelColumn UnderAxialCompressionAfterFire Chen Jianfeng,Zhou Tianhua (School of Civil Engineering,Chang'an University,Xi'an, Shaanxi710061,China) Abstract;The method of increasing section was used to strengthen damaged steel column post-fire. The strengthening process was simulated with nonlinear finite element method and element birth and death technology by considering secondary load. The result showed that the strengthen plan is reliable and rational,and the performance differences between raw material and reinforcing material influence on the stability bearing capacity of steel column. In addition, the enforcing layer strain hysteresis is the main factor affecting the bearing capacity of reinforced members. Key words;strengthening; steel structures;fires; secondary load;finite element method 0引言钢材经历升温再降温,力学性能发生变化,尤其是 火灾使钢结构受损,经科学合理地评估鉴定弹性模量、屈服强度的下降会对构件乃至整体结构 后,对受损严重、承载力水平下降、可靠度显著降低刚度造成影响,导致钢结构稳定承载力下降。
2012年4月下 施工技术 第41卷第363期 CONSTRUCTION TECHNOLOCY 95 灌浆技术在水利工程建设管理 及施工中存在的若干问题 戎雷,潘翔 (武警水电第二总队,江否南昌330029) [摘要]灌浆作为地基处理的主要手段之一,在国内得到了很大发展,在建工程中所占的比例也在增加,但在建设 管理方面还存在一些弊端.在施工管理方面也存在一些误区.结合实际经验,分析了灌浆技术在水利工程建设管 理中存在的问题及施工方面存在的误区及其解决办法,以更好地促进灌浆工程的发腰. [关键词]水电站:地基处理:灌浆:管理 [中图分类号】TV732 [文献标识码]A [文章编号]1002-8498(2012)08-0095-04 Several Problems of Grouting Technology in Management and Construction of Hydraulic Engineering Rong Lei Pan Xiang No.2 Hydropower Force of Armed Police Nanchang.Jiangsi 330029 China) Abstract:As one of main methods for foundation treatment grouting is developing in China.And the percent of grouting increases in construction.But there are some disadvantages in building management and some mistakes in construction management.Based on actual practices authors analyze the problems and mistakes of grouting technology in construction management of hydraulic engineering to promote the development. Key words:hydropower stations:foundation treatment;grouting:management 灌浆(grouting) 发展初期称为注浆(injection高坝大库成为主导设计理念.水利工程中多为较 grouting) 是将一定材料配成浆液,用压送设备将其常规施工有诺多困难的案例,其基础处理工程所占 灌人地层或继隙是指扩散、胶凝或固化,以达到加比例与分量均有所增加,大部分为采用灌浆方式进 固地层或防渗堵漏的目的.在基础处理范砖,注浆 行处理. 技术由经验方法逐步完善成为一门具有理论的技 虽然如此,很多工程师仍有重上层建筑、轻地 术.注浆技术的历史大致可分为4个阶段:原始黏下基础的思想,或有因对灌浆理论知识了解简单而 土浆液阶段(1802一1857年).初级水泥浆液注浆阶 产生的不合理的建设管理和施工管控,形成了很多 段(1858一1919年),中级化学浆液注浆阶段 误区. (1920一1969年),现代注浆阶段(1969年之后).1建设管理中存在的问题 我国对灌浆技术的应用起步较晚,但发展较快,近 1.1标段划分过多可能导致责任不清 年来某些方面已达到世界先进水平,20世纪50年 目前国内大型工程的招投标市场中,建设单位 代后期,灌浆技术在水坝的防渗和加固工程中逐渐 多会将整体工程划分为多个标段,其...
[关键词】绿色建筑;绿色施工;节能;环保;施工技术 [中图分类号]TU712[文献标识码]A[文章编号]1002-8498(2014)04-0063-03 GreenConstructionResearchandApplication inHaikongInternationalPlaza
(Huadong Branch of China Construction Sixth Engineering Bureau Co.,Lud.,Nanjing,Jiangsu 210016,China) Abstract:In recent years,with the energy consumption and deterioration of environmental pollution increasing,green construction,energy-saving and emission reduction are promoted in China.Combined with Haikong International Plaza project,the research and application of green construction are introducedbased on the green construction stage ingreen building life cycle,including energy-saving, material-saving,water-saving, land-saving and environmental protection.The results show that good social and economic benefits are obtained by the application of green construction technology. Key words:green buildings;green construction;energy-saving;environmental protection;construction 1工程概况 海控国际广场位于海南省海口市龙华区商业 核心区,项目由主楼A座、副楼B座、C座及附属裙 房及地下机械车库组成,总建筑面积23万㎡²,是集 五星级酒店、5A级写字楼、酒店式公寓、娱乐、观光 于一体的商业综合体。
施工技术 2011年11月下 30 CONSTRUCTION TECHNOLOGY 第40卷第353期 海控国际广场塔式起重机运力分析及优化 李松 (中国建筑第六工程局有限公司华东分公司,江苏南京210016) [摘要]海控国际广场工程钢筋混凝土核心筒与钢管混凝土外框柱的安装作业均需要选用塔式起重机来进行垂直 运输工作.通过对塔式起重机的使用情况进行大量统计分析,并根据分析结果采取措施优化塔式起重机运力,促 进了工程质量和安全管理工作,并为工期目标的实现提供了有力的措施保障. [关键词]高层建筑;建筑机械;塔式起重机;运力分析:优化 [中图分类号]TH213.3 [文献标识码]A [文章编号]1002-8498(2011)22-0030-02 Analysis and Optimization for Tower Crane Capacity in HNA International Mansion Li Song Huadong Branch of China Construction Sixth Engineering Division Co.Ltd.Nanjing Jiangsu 210016 China) Abstract:The installation of reinforced concrete core tube and external frame column in HNA International Mansion need to use tower crane for vertical transportation.The using condition of tower crane is statistically analyzed to optimize the capacity.The construction quality and safety management are improved and the construction period is ensured. Key words:tall buildings;construction equipment;tower cranes;capacity analysis;optimization 1工程概况 海控国际广场工程位于海口市金贸中路,A座 建筑高度249.70m 目前是海南省在施第一高楼. 本工程结构形式为钢筋混凝土双连体核心筒钢管 混凝土外框柱、钢楼承板结构形式,地下3层,地上 54层.结构施工阶段的垂直运输采用2台TC7052 号式 外附着式塔式起重机.由于现场条件所限,1号塔 包机 2号塔式@ 式起重机大臂长度为40m 2号塔式起重机大臂长 起重机 度为45m 两台塔式起重机可以覆盖整个作业面. 钢筋混凝土核心简施工采用爬模外爬内支方式,混 凝土泵送;初期外框柱混凝土使用塔式起重机吊运; B座 楼承板混凝土采用泵送方式施工. 由于现场条件所限,A座周围不能形成循环道 路,但有3条通道可接近A座.塔式起重机施工平 图1塔式起重机施工平面布置 面如图1所示. Fig.1 Tower crane work plan 2塔式起重机工作内容分析 塔式起重机运力与结构施工工艺关系密切,施 施工工艺流程如图2所示.最初计划塔式起重机主 工工艺关系到塔式起重机的工作内容和工作量.其 要工作内容如表1所示. 3实际运力分布统计与分析 [收日期]2011-08-01 [基金项目]中国建筑工程总公司科研项目(CSCEC-2011-Z-38) 现场实施过程中,在标...
施工技术 2014年8月下 48 CONSTRUCTION TECHNOLOGY 第43卷第16期 D01:10.7672/sjs2014160048 海岸桩基建筑物纠倾工程分析 李宇捷 (中国地质大学(北京)海洋学院,北京100083) [摘要]海岸桩基建筑物纠倾工程是一项复杂的系统工程,需要因地制宜地进行研究.讨论了海岸工程地质条件 和水文地质条件,分析了海岸桩基建筑物倾斜原因及其纠倾工程设计施工特点,通过两则实例揭示了风暴与潮汐 对桩基建筑物纠倾工程的影响,探讨了地下水、地基土、桩基础及荷载变化的相互关系,提出了及时规避台风和大 潮的措施. [关键词]海岸场地;桩基;纠倾 [中图分类号]TU746.3 [文献标识码]A [文章编号]1002-8498(2014)16-0048-04 Analysis on Incline-rectifying Engineering of Coastal Building with Pile Foundation Li Yujie (School of Ocean Sciences China Unitersity of Geosciences Beijing) Beijing 100083 China Abstract:It is a plex systematic engineering to correct the leaning coastal building with pile foundation on which the studies shall be prepared according to practical condition.The engineering geology condition and hydrogeological conditions in coastal site are discussed.Then slant reasons of coastal building with pile foundation are analyzed the design and construction characteristics of incline- rectifying engineering are put forward.The windstorm and tide influence on incline-rectifying engineering are researched by two engineering examples.The relationships of groundwater foundation soil pile foundation and time varying load are discussed and the avoidance measures of windstorm and tide are advanced. Key words:coastal site:piles;rectification 随着我国城市化进程的发展,沿海城镇逐渐向 裸露.我国的基岩海岸多由花岗岩、玄武岩、石英 滨海平原地区推进,海岸建筑随之增加.但由于海 岩、石灰岩等组成.海岸基岩强度较高,压缩性低, 岸地质条件特殊性以及设计施工等方面的原因,一 其节理与裂隙比较发育. 些海岸桩基建筑物出现了倾斜等建筑病害.海岸 砂质海岸多形成于海湾内,主要由砂砾组成, 桩基建筑物纠倾工程具有地域性强、时空效应显 平原地貌发育.其中,砾石、粗砂的抗剪...
施工技术 2011年12月下 78 CONSTRUCTION TECHNOLOGY 第40卷第355期 海外工程的RFI编制管理 王力尚,周康,吴鸣,朱建潮,陈文刚 (中建中东有限责任公司,阿联首,迪拜) [摘要]在履行国际项目工程合同时,有可能出现技术问题,需要建筑施工承包商履行RFI报审程序.RFI即技术 问题答疑,是海外工程施工中承包商向业主,监理获取技术信息,解决工程施工过程中遇到的技术问题的主要途 径.重点对RFI的特点、适用范围、编制原理及应用流程进行闸述,并介绍了审批分类以及管理办法等.实践证 明,RFL具有良好的经济和社会效益. [关键词]管理;RFI;编制;审批分类 [中图分类号]TU713 [文献标识码]A [文章编号]1002-8498(2011)24-0078-03 Compilation and Management of Request for Information for the International General Contract Project Wang Lishang Zhou Kang Wu Ming Zhu Jianchao Chen Wen'gang (China State Construction Engineering Corporation Middle East L.L.C.Dubai UAE) Abstract:Contractors will implement process of request for information RFI)due to technical problems in international general contract project.RFI is the main way for contractors to get information from the clients and supervisors for solving the technical problems.Authors describe the characteristics application scopes pilation theory and application process of RFI as well as categories used by the engineer to evaluate RFI and management methods.The application shows that RFI for the international general contract project can gain good economic and social benefits. Key words:management;RFI request for information);pilation;categories used by the engineer to evaluate 在履行国际项目工程合同时,在业主、监理、承程施工过程中遇到的技术问题和技术难点,获取足 包商共同管理的项目施工过程中,由于设计失误、够技术信息的有效手段,并最终为工程的顺利施 忽略、错误、各专业之间脱节,设计与现场条件不工、通过竣工验收服务,为建筑服务商争取更大的 符、节点不细化、设计变更,项目进行中监理履行设经济效益.目前在各大建筑市场中得到了广泛的 计职能等原因,使项目在进行中出现技术疑问、图应用. 纸信息、节点不细化、现场与设计不符、各专业冲突2...
2016年4月下 施工技术 第45卷第8期 CONSTRUCTION TECHNOLOGY 47 D0I:10.7672/8js2016080047 杭州来福士广场双向异面倾斜圆管柱深化 设计与加工制作 朱福锦,聂元宗,沈洪宇,周鹏,张耀林 (中建钢构有限公司,广东深圳518040) [摘要]杭州来福士广场项目外围框架圆管柱沿曲面向不同方向倾斜,给钢结构深化设计和加工制作带来了难度. 针对光滑曲线大直径圆管柱结构特点,从深化设计源头进行合理优化以便于工厂加工制作.详细介绍了双向异面 倾斜圆管柱的深化设计建模及图纸表达方法,通过精心设计,满足加工制作要求,为项目成功实施提供了充分 保障. [关键词]高层建筑;钢结构;双向异面;圆管柱;深化设计;加工 [中图分类号]TU323.1;TU758.16 [文献标识码]A [文章编号]1002-8498(2016)08-0047-04 Detailed Design and Fabrication for Inclined Circular Pipe Column with Two-way in Different Planes of Hangzhou Raffles City Project Zhu Fujin Nie Yuanzong Shen Hongyu Zhou Peng Zhang Yaolin China Construction Steel Structure Co.Lid.Shenzhen Guangdong 518040 China) Abstract:Peripheral frame circular pipe columns incline to different direction along curves in Hangzhou Raffles City project which brings difficulties to steel structure detailed design and manufacture. According to the characteristics of smooth curve large diameter circular pipe columns reasonable optimization is done from deepening the design source for the factory manufacture.This article introduced detailed design model and drawing expression method of the two-way in different planes inclined cireular pipe columns.Through elaborate design it can meet the requirements of processing production and provides a full guarantee for successful project implementation. Key words:tall buildings;steel structures;two-way in different planes;circular pipe column;detailed design;processing 1工程概况 杭州来福士广场项目由T1 T2两栋塔楼及裙 房组成.T1塔楼60层,建筑高度250m(檐口高...
[关键词】体育场;钢结构;空间结构;刚度退化;节点;设计 【中图分类号】TU311;TU758[文献标识码]A[文章编号]1002-8498(2014)14-0038-06 StructuralDesignandResearchReviewontheMain StadiumofHangzhouOlympicSportsExpoCenter Yang Xiangbing,Fu Xueyi, Liao Xinjun,Zhu Yongjun, Cheng Yongping, GaoYing,ZhouYing,Wang Tao (CCDIInteationalDesignConsulantsLimited,Bejng100013,China)
shaped in plan, theouter perimeteris about 1000m,the gross area is 210000m²and it has 80912fixed audience seatsntotal.Concrete structureadoptsframe-shearwall system,andprofile steelisembedded in some offrames and shearwall.None permanent structural joints are providedof the structure,andit is therefore an out of gauge over length structure.The maximum cantilever length of steelroof is52.5m, using the structural system of radial cantilevered space tube truss bined with circumferential chord supported single-layer reticulated shell, supported on the reinforced concrete column through upper and lower bearings.The paper primarily presents the structural system,structural form,key technical difficulties andmeasuresforrelevant specialized studies and analysis. Key words:stadiums;steel structures; spatial structure; stiffness degradation; joints;design 1工程概况场北侧看台2层平台以上开口,开口宽度40~60m。
2016年1月下 施工技术 第45卷第2期 CONSTRUCTION TECHNOLOGY 13 D0I:10.7672/sgjs2016020013 杭州国际博览中心飘带网架结构 施工全过程分析* 王化杰12,钱宏亮1,范峰2,徐义明3,刘世豪24,张甫平3 (1.哈尔滨工业大学(威海)土木工程系,山东威海264209;2.哈尔滨工业大学土木工程学院,黑龙江 哈尔滨150090;3.中建安装工程有限公司,江苏南京430064;4.中国建筑股份有限公司,北京100037) [摘要]杭州国际博览中心飘带结构是典型的自由曲面空间结构,对施工安全和施工精度提出了很高的要求,为了 了解结构在施工过程中的响应规律,考察施工方案的合理性,对其结构施工过程关键问题进行研究,建立了整体结 构施工仿真模型,针对结构的“分条分块吊装方案”,对典型吊装单元进行了吊装分析,给出了结构分块吊装过程中 吊装单元的力学响应,并给出了吊装建议,对飘带网架拼装方案和结构卸载方案进行了施工全过程模拟,获得了结 构施工过程的力学响应规律.分析结果表明,施工过程中结构的最大应力比均在0.3以下,应力比较低,变形均满 足规范1/250的控制要求,施工过程中结构处于弹性状态,施工方案合理,研究成果可以为结构施工安全和精度控 制提供理论指导. [关键词]钢结构;网架;吊装;施工;数值模拟 [中图分类号]TU393.3 [文献标识码]A [文章编号]1002-8498(2016)02-0013-05 Construction Full-process Analysis for Streamer Space Truss of Hangzhou International Expo Center Wang Huajie'.2 Qian Hongliang' Fan Feng? Xu Yiming' Liu Shihao2. Zhang Fuping' (1.Department of Civil Engineering Harbin Institute of Technology Weihai Weihai Shandong 264209 China; 2.School of Civil Engineering Harbin Institute of Technology Harbin Heilongjiang 150090 China; 3.China Construction Installation Engineering Co. Ltd.Nanjing Jiangsu 430064 China; 4.China State Construction Engineering Co. Beijing 100037 China) Abstract:Streamer structure of Hangzhou International Expo Center was a typical free-form surface spatial structure which proposed high demands on the construction safety and precision.Key issues in construction processes were studied while simulation model of the whole structure was established in order to grasp the response pattern of...
[关键词]边坡;支护;机械胀裂法;数值模拟;施工工艺 [中图分类号]TU471*.6 【文献标识码]A [文章编号】1002-8498(2017)05-0041-02 ApplicationofMechanicalBurstMethodinSlopeExcavationEngineering Ye Chunlin',CaoXiaoli²,Ma Rui',GaoWenxue² (1.Beijng MunicpalRoad&BridgeGroupCo.Ld.Bejing100068,China;2.CollefArchitecturend Civil Engineering,Beijing University ofTechnology,Beijing100124,China) Abstract;The blasting method willlead to potential safety problems in plex environment.Mechanical burst is used in many engineering applications, because of its advantage of the characteristics of rock, besides,it has good control and environmental protection.In this paper,based on a slope project in Foshan of Guangdong,numerical simulation is researched.Mechanical burst feasibility in the project is validated by field test. Key words:slope;supports;mechanical burst; simulation; construction 0引言 作业;边坡开挖高度为10~15m。