[关键词】钢筋混凝土;框架;转换梁;脚手架;传力柱;设计;施工 [中图分类号】TU756.41[文献标识码】A[文章编号】1002-8498(2014)02-0101-03 Designand Construction of theTemporaryTransmission Column of TransferBeamofaEngineering Lin Shouzhong,Li Jianhong (The Fifh Construction Co.of Zhongtian Construction Group Co.,Ltd.,Xi'an,Shanxi710065,China) Abstract;Fastener-style steel pipe is widely used because of faster and easier control for construction. When the beam and slab was intercepted by post-cast strip, supporting column was cancelled, construction loading was extremely disadvantage to structure supporting capacity,temporary column was set up to transfer construction loading.It is more convenient,faster and efficient. The design and construction for supporting and transmission support of transfer beam, every layer floor and roofs were introduced in detail. Key words:reinforced concrete;frame;transfer beam;scaffolds;transmission column; design;construction 随着建筑功能要求的复杂化,出现越来越多各 类超重结构,给施工设计带来难度。
由于底层图12层和屋面超重梁部位结构平面示意 大堂空间的需要,1层在轴交,轴处的框架柱Fig.1 Layout plan of overweight beam 取消;2层转换梁尺寸700mm×1600mm,跨度location on floor 2 and roof 16.2m,5轴2层以上的框架柱生根于转换梁;4层转换梁被后浇带切分为净长10.05m和4.35m 功能为大宴会厅,5轴框架柱全部取消;屋面梁尺的两段悬挑结构,3,4层结构由于转换梁上框架柱 寸600mm×1300mm,跨度16.2m。
施工技术 2010年4月 46 CONSTRUCTION TECHNOLOGY 第39卷第4期 某工程转换层支模体系施工与安全控制 何盛熙 (广厦建设集团安徽创业建设工程有限公司,安微合肥230011) [摘要]通过合肥某工程,分析了转换层高大截面粱结构支模体系的施工技术,系统地述了施工过程中支模体系 的安全措施与控制,指出转换层高大截面梁结构施工过程中安全的重要性和必要性.并对超高、超重满堂支模架 的钢管材质、设计和施工要点,以及针对支模体系在施工中的安全控制,作出了一系列分析与论述,经过设计计算, 选用钢管与扣件等合格的材质,同时在施工中加大管理力度,强化过程控制,达到了预期的施工、质量安全效果. [关键词]转换层;支模体系:设计;施工管理;质量安全指施 [中图分类号]TU755.22 [文献标识码]A [文章编号]1002-8498(2010)04-0046-03 Construction and Safety Control of Some Formwork Support System of Transfer Layer He Shengxi Guangsha Construction Group Anhui Venture Construction Engineering Co.Lad.Hefei Anhui 230011 China) Abstract:Through some engineering in Hefei construction technology for formwork support system of high sectional beam of transfer layer is analyzed and the security measures and control are described systematically which indicate the importance and necessity of safe construction.Furthermore the steel tubular quality design and key points of construction to super-high and overweight formwork support are analyzed and described.By calculation choosing qualified steel tubular and fastener intensifying management effort strengthening control the engineering has gained excellent effect. Key words:transfer layer;formwork support system;design;construction management;security measure for quality 高层结构往往采用高大截面梁来转换楼层平面布构缩进1000mm(见图2),支模体系施工难度较大. 置,给施工安全带来了极大难度.当前,对于超高、超重 的满堂支模体系,由于施工疏于管理,施工方案未经仔 细设计计算,选用钢管与扣件材质不合格、搭设构造不 符合施工规范和设计要求,从而造成整体期墙的重大伤 亡事故.为了确保施工安全,支模体系设计除满足施工 荷载和施工工艺要求外,还必须充分利用建筑物本身的 有利条件,努力适应工期要求,达到安全省料...
[关键词]地下工程;深基坑;基础;内支撑;降水;施工技术 【中图分类号】TU753:【文献标识码】A[文章编号】1002-8498(2014)01-0053-04 Construction Technology of Ground and Foundation for Super-large Deep Foundation Excavation of Some Engineering Mei Xiaoli, Chen Jie,Liu Wei (The Third Construction Co.,Lad.of China Construction First Group, Beijing 100161) Abstract:Based on engineering practice,this paper introduced thekey points and dificulties in ground and foundation construction.In excavation and inner support construction,tower crane engineering was reasonably arranged to improve construction efficiency. Construction technologies were introduced from dewatering,excavation and inner support construction, support exchange and demolition, pits in foundation excavation.Monitoring results showed that it can meet the standard requirement. Key words:underground;deep foundation excavation;foundations;inner supports; dewatering; construction 1工程概况和机械设备需求。
2014年10月下 施工技术 第43卷第20期 CONSTRUCTION TECHNOLOGY 111 D0I:10.7672/sgjs2014200111 某工程莫比乌斯环状幕墙脚手架搭设技术* 徐琳 (江苏工程职业技术学院建筑工程学院,江苏南通226007) [摘要]某工程采用莫比乌斯环造型设计,建筑外壳由多块不同尺寸的单元式幕墙组成,为一个自由连续的曲面, 为解决各区幕墙脚手架分区搭设高度、细部参数设置、节点处理等技术难题.针对工程难点,设计了脚手架参数, 经实践应用,该方法可提高幕墙安装的精度,缩短工期,增加经济效益. [关键词]幕墙;莫比乌斯环;脚手架;搭设;施工技术 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2014)20-0111-03 Mobius Ring Wall Scaffolding Technology Xu Lin (School of Civil Engineering Jiangsu College of Engineering and Technology Nantong Jiangsu 226007 China) Abstract:An especial engineering is designed in mobius ring shape whose building shell is posed of unit-type curtain wall with different sizes which is a free curved surface.In order to solve the curtain wall scaffolding erection height of partition detailed parameter settings the joint processing technology according to the engineering difficulties the scaffold parameters is designed.Through practical application this method can improve the accuracy of the curtain wall installation shorten the construction period and increase the economic benefit. Key words:curtain wall;mobius ring;scaffolds;erection;construction 1工程概况 2脚手架施工 该工程总建筑面积为64973m2 建筑最大高度 根据本工程主体钢结构的特点、内外幕墙的分 54m 地上10层,地下3层,采用框架剪力墙及钢结 布情况和工期要求,同时结合现场施工条件,为 构形式,工程结构层高:底层6.3m 2~10层4.2m 保证工期、保证施工质量和施工安全,采取“分区施 顶层6.75m 楼板厚度180mm.建筑外壳采用单元 工,齐头并进,流水作业,分段移交”的施工步骤,将 式幕墙,为一个自由连续的曲面.单元板块随主体 幕墙施工分为4个施工区.经过比较、筛选,最终确 钢结构光滑过渡,各连接点变形角度、尺寸均不相定脚手架、排架搭设施工方法如图2所示. 同,因而幕墙施工脚手架的搭设难度大(见图1). 1)施工1区北侧立面采用双排钢管落地脚手 架,搭设高度23~27m 立杆间距1200mm× 150...
施工技术 2010年1月 78 CONSTRUCTION TECHNOLOGY 第39卷第1期 某工程灌注桩复式注浆施工技术 闫永茂,庞军辉 (山西建筑工程(集团)总公司,山西太原030002) [摘要]后压浆灌注桩在普通成孔灌注桩基础上,增加了放置压浆管、注浆准备及压浆3个步骤,并于桩成孔后在 孔底投放直径1~3cm的碎石.某通信生产基地采用薄注桩复式注浆工艺进行地基处理,介绍了注浆工艺、施工设 备、注浆管制作及高压注浆等技术措施,并提出施工质量保证措施.实践证明,复合注浆技术不仅能显著提高桩的 承载力、有效减少柱基沉降,且质量稳定可靠、无噪声、无振动、无污染. [关键词]地基处理;灌注柱;后压浆;复式注浆;承载力;施工技术 [中图分类号]TU753.3 [文献标识码]A[文章编号]1002-8498(2010)01-0078-03 Construction Technology of Double Grouting for Bored Piles in Some Project Yan Yongmao Pang Junhui Shanxi Construction Engineering Group Co.Lad.Taiyuan Shansi 030002 China) Abstract:Based on traditional bored piles technology three construction steps are added in construction of post-grouting bored piles including laying grouting pipes preparation and grouting.Then gravel with 1 ~3mm in diameter is put in bottom of formed holes.Foundation treatment of a munication production base adopts double grouting technology for bored piles.Technologies such as grouting process construction equipment grouting pipes preparation and high-pressure grouting are introduced as well as quality ensuring measures.It proves that double grouting technology can improve bearing capacity and reduce settlement of bored piles.Moreover it has advantages of stable and reliable quality quietness no vibration and no pollution. Key words:foundation treatment;bored pile:post grouting;double grouting;bearing capacity; construction technology 1工程概况 注桩增加了放置压浆管、注浆准备及压浆3个步骤,并 某中国移动通信生产基地工程位于太原市经济技于桩成孔后在孔底投放0.5m厚1~3cm的碎石.目 术开发区,总建筑面积63300m2.包括通...
施工技术 2012年12月下 36 CONSTRUCTION TECHNOLOGY 第41卷第379期 某工程深基坑内支撑方案优化 闫新郑 (郑州大学第一附属医院,河南郑州450052) [摘要]某医院病房综合楼工程,基坑尺寸为120m×80m×22.67m 基坑四周布置钢筋混凝土灌注桩挡土,挡土桩 内壁设计了4道钢筋混凝土内支撑,-14.600m钢筋混凝土内支撑阻断了自卸汽车运土路线,项目部对深基坑内 支撑进行了方案优化,部分内支撑改为锚索,解决了挖土作业空间小导致的施工效率低的问题,加快了工程进度. [关键词]地下工程;深基坑;支撑;错索;施工技术 [中图分类号]TU753.1 [文献标识码]A [文章编号]1002-8498(2012)24-0036-02 Scheme Optimization on Inner Support of Deep Foundation Excavation in Some Engineering Yan Xinzheng The First Affiliated Hospital of Zhengzhou University Zhengzhou He'nan 450052 China) Abstract:The foundation excavation is about 120 meters in length 80 meters in width and 22.67 meters in depth in some multifunctional ward building.The surrounding of foundation set out reinforced concrete bored piles as retaining piles.In the inner wall of the retaining piles has four rows of reinforced concrete inner support.Because the inner supports at elevation -14.600 meters block out the soil transport route so the scheme optimization on inner support is done part of inner supports are replaced by anchors which can solve the problem of low construction effect induced by small soil-digging space. Key words:underground;deep foundation excavation;support;anchor;construction 随着我国城市化建设步伐的加快,城市人口越闭合低松弛预应力钢绞线铺索(以下简称错索),预 来越多,造成停车难、附属设施建设用地难.拟建应力钢筋采用强度等级标准值f=1860MPa的高 工程设置多层地下停车库、人防工程、附属设施用强低松驰钢绞线,公称直径15.2mm 每道锚索由4 房等,已经成为缓解或解决用地难的重要措施,因 束钢绞线组成,错索长度21.5 21.0 20.0m 错固段 此,建筑基坑越来越深是发展趋势.但由于建设行 入强风化以上岩层>10m.基坑支护如图1所示, 政主管部门要求或周边建筑的限制,采用内支撑的 基坑支护支撑梁内力情况如表1所示. 越来越多,也由此带...
施工技术 2012年8月上 52 CONSTRUCTION TECHNOLOGY 第41卷第370期 某工程洁净手术室墙面及顶棚施工技术 李太权,王利生 (中国新兴建设开发总公司,北京100039) [摘要]以中国人民解放军总医院第一附属医院烧创伤大楼工程为例,主要介绍100级洁净手术室内墙面和顶棚 无缝洁净面板施工技术,结合现阶段材料、工艺而选择的最佳设计、施工方案,实现了工厂化、流水线化作业,取得 了很好的实施效果. [关键词]特种工程;墙面;顶棚;洁净手术室;施工技术 [中图分类号]TU761 [文献标识码]A[文章编号]1002-8498(2012)15-0052-03 Construction Technology for Walls and Ceiling of a Clean Operating Room Li Taiquan Wang Lisheng China Xinxing Construction and Development Corporation Beijing 100039 China) Abstract:Taking the Burn and Trauma Building of 304 Hospital as an example this paper mainly introduces the construction technology of seamless clean panel for the walls and ceiling in grade-100 clean operating rooms.With existing material and construction technique the design and construction scheme were optimized so that the main construction procedure can be finished in the factory with streamline manufacturing.The engineering practice shows a good effect. Key words:special engineering;walls;ceilings;clean operating room;construction 1工程概况 的装修,主要着眼点是面层材料易于安装,便于清 中国人民解放军总医院第一附属医院烧创伤 洁,容易达到洁净要求,有利于保持室内温湿度,减 大楼工程,总建筑面积44423.01m2 框架剪力墙结轻空调系统负担.要避免由静电引起的挥发性麻 构,地下2层,地上16层.第10层洁净手术部由10 醉药品或各种气体爆炸、着火等危险.要防止对医 间手术室和1间无菌物品库房、洁净走廊以及配套 护人员产生视觉干扰,并要考虑材料在施工中的适 功能用房等组成,其中100级净化手术室2间,用性和可行性. 1000级净化手术室6间,10000级净化手术室2间. 常用于洁净手术室装修的材料有以下几种类 本文讲述了第四代洁净手术室施工技术. 型:不锈钢、铝合金、塑料、卫生陶瓷类、水磨石、稳 2手术室等洁净房间对装饰材料的性能要求 定漆料等. 高洁净度手术室对于室内面层装修材料有特 3手术室等洁净房间墙面、顶棚做法 殊的要求,主要有以下几方面:①表面平滑,不易开 1)手术室墙面组成墙体型钢骨架包括C形 裂,没有会使尘粒渗入的裂缝、凹陷、孔隙和气孔; 地槽龙骨、竖向主龙骨、水平龙骨、竖向辅助龙...
[关键词】施工升降机;基础;加强支撑技术;安全;监测 [中图分类号]TU8[文献标识码]A[文章编号】1002-8498(2017)04-0090-02 StrengtheningSupportTechnologyfortheStructureUnder the BasementofConstructionElevatorinSomeEngineering Su Yunhui',Wang Yongming',GaoXiang',Ma Xinzheng² (1.Xinjiang Research Institute of Building Sciences LLC,Urumqi,Xinjiang830054,China; 2.Xinjang Construction EngineeringGroupFirstConstructionCo.,Ld.,Urumqi,Xinjiang30000,China) Abstract;In some engineering,the basement of construction elevator set on the floor of underground garage.To assure structure safety, the floor under the basement of construction elevator needs to be strengthened by setting support.The authors show in detail the strengthen support technology and safety monitoring measures of all-round scaffold.By the engineering application,the safety and economic of the strengthen support system are verified. Key words:elevators;basement; strengthen support system; safety;monitoring 目前高层及超高层建筑越来越多,为节约土地地上主楼范围 和提高建筑空间使用率,将地下车库连成整体作为层建筑外转线 高层及超高层建筑的基础,这样安装的施工升降机 基础就会坐落在地下车库顶板上部。
为传递施工③ 升降机荷载,确保建筑结构安全,需对施工升降机[4.526 基础下部结构做加强支撑。
下面对某工程施工升9 4006 026 降机基础下部结构加强支撑技术做总结介绍。
图1施工升降机(施工电梯)安装平面位置 1工程情况Fig.1Installation plan layout of construction elevator 某建筑工程地上25层,建筑高度99m,地上部 分坐落于地下车库之上,地下车库2层,拟安装中联度等级为C60、挡土墙混凝土强度等级设计为C40, 重科的SC200/200施工升降机(施工电梯)1台,施安装施工升降机前均已达到设计要求强度。
[关键词]加固;建筑物抬升;结构刚度;方案优化 [中图分类号]TU746.3 [文献标识码]A [文章编号〕1002-8498(2015)16-0031-04 OptimizationResearchofStrengtheningSchemeofOverall UpliftofSomeEngineering Li Jinbao',Qiu Hongxing²Zhao Qiming',ZhangJiajuan²,Li Xiaofan² (1.Jiangsu Southeast Special Technical Engineering Co.Lad.,Nanjing,Jiangsu 210008,China; 2.School of Civil Engineering,Southeast Unitersity,Nanjing,Jiangsu 210096,China) Abstract:This building is a frame structure with 8 floors and 1 underground floor, according to the requirement of the owner, the ground floor needs to be lifted from the height of 3.5m to the height of 4.8m.After the overall uplift, the column’ s calculation height is changed, the stiffness, the natural vibration period,the displacement,and the reinforcement are also changed,so the calculation results could not satisfy the requirements of the standard.If the cross sections of the members are increased,the problems can be solved, but the cost of the construction will be too high.According to the parative study,the strengthening design of adding the short-leg shear wallis proposed,the calculation results can satisfy the requirements of the standard.The reinforcement effect is very good and the strengthening cost is reduced. It shows that the optimization research of strengthening scheme is very important. Key words:strengthening;structure uplift;stiffness;scheme optimization 目前我国加固改造工程规模正在逐年增加,由计计算发现结构的刚度、周期、位移以及配筋等均 于加固设计方案的确定直接影响加固工程的构件发生了不同程度的变化。
施工技术 2010年4月 76 CONSTRUCTION TECHNOLOGY 第39卷第4期 某工程拉法基屋面施工技术 晏金洲,高云荣,王中华,董年才 (南通建筑工程总承包有限公司,江苏南通226124) [摘要]以烟台星河城小区一期工程拉法基屋面施工为例,介绍了拉法基屋面的防水系统、保温系统、通风系统、紧 固系统和采光系统的综合施工技术.拉法基屋面适用于工业与民用建筑的坡屋面,对防水层起到很好的保护作 用,同时给建筑物提供了良好的保温、隔热性能.重点介绍了屋面防水施工,屋面放线,顺水条、保温板安装,铝箔、 挂瓦条安装,排水沟安装及构筑等施工工艺. 【关键词]拉法基屋面;紧固系统;采光系统;坡屋面;施工技术 [中图分类号]TU765 [文献标识码]A[文章编号]1002-8498(2010)04-0076-03 Lafarge Roof Construction Technology of Some Engineering Yan Jinzhou Gao Yunrong Wang Zhonghua Dong Niancai Nantong Construction General Contractor Co.Lad.Nantong Jiangsu 226124 China) Abstract:Taking Lafarge roof construction in Yantai for example the waterproof system insulation system ventilation system fastening system and lighting system for Lafarge roof are introduced.This kind of roof is suitable for slope roof of industrial and civil building to protect waterproof layer and supply excellent insulation.The waterproof construction roof actinobacillus installation of insulation board and aluminum foil installation and construction of drainage ditch are introduced in detail. Key words:Lafarge roof;fastening system;lighting system;slope roof;construction technology 1工程概况 屋面防水系统采用自黏橡胶高分子防水卷材,该 烟台星河城小区一期工程,位于烟台市福山区福防水具有独特的“自愈”功能,施工时砂、钉子等硬物 海路,剪力墙结构,总建筑面积220000m2 工程于2007载穿的孔洞能自行愈合.卷材与基层具有良好的黏结 年10月开工,2008年1月竣工验收.20000m2屋面使性能,可有效防止卷材下面出现串水现象,避免防水层 用拉法基屋面系统施工(见图1),取得很好的社会、经 整体失效.铺设铝箱隔热卷材,对辐射热的反射率高 济和环保效果.本工程获得烟台市优质结构工程. 达95%,具有良好隔热效果,有效地降低能源损耗. 由正脊挡、檐口挡篦、檐口通风条等组成的通风 系统,利用空气动力原理在屋面形成一个空气对流层, 带走屋面多余的热量和湿气,辅助屋面节能,同时有效 延长屋面的使用...
施工技术 2013年7月上 56 CONSTRUCTION TECHNOLOGY 第42卷第13期 D0I:10.7672/sgjs2013130056 某工程强夯振动影响及隔振沟减振效果测试与分析 李保华,安明 (山西机械化建设集团公司,山西太原030009) [摘要]结合某工程实例,对工程中强夯振动影响以及隔振沟的减振效果进行了测试与分析.分别对2000 3000, 4000kNm强夯能级下不同深度、距离,击数等情况下振动衰减速度进行了检测.检测结果表明,振动速度的衰减 效果和隔振沟的深度有着直接关系. [关键词]地基;强夯;振动速度;隔振沟;检测 [中图分类号]TU472.31 [文献标识码]A [文章编号]1002-8498(2013)13-0056-03 Test and Analysis of Damping Effect of Isolation Trench and Vibration of Dynamic Compaction in Some Project Li Baohua An Ming Shanxi Mechanisation Construction Group Company Taiyuan Shanxi 030009 China) Abstract:Based on engineering practice this paper makes test and analysis on damping effect of isolation trench and vibration of dynamic paction.The vibration velocity is detected under 2 000 3 000 4000 kNm tamping energy in different depth distance and tamping number.The result shows that attenuation effect of vibration speed is directly related to the depth of isolation trench. Key words:foundations;dynamic paction;vibration speed;isolation trench;detection 1工程概况 设置隔振沟,然后再进行强夯.通过对不同位置的 山西中医学院新校区建设场地位于山西省晋振动速度衰减情况进行检测,以判别强夯振动是否 中市榆次区北部新城,位于晋中盆地东部边缘.建对主体结构的施工造成影响.在护理楼和学生宿 设场地为I级非自重湿陷性黄土场地,但场地部分舍楼之间距护理楼边线5m处开挖隔振沟,沟深 地段属填土地基,故整个场地的地基采用强奔处5m 沟宽0.8m.在隔振沟两侧紧贴沟边0.5m处设 理.由于施工现场建设项目密集,地基处理、基础置振动速度传感器.同时在距离隔振沟30m处的 主体施工工序交叉,强夯施工振动对其他工序产生学生宿舍楼基础边缘放置振动速度传感器,以了解 的影响无法避免,影响整个项目的工程进度.其隔振沟两侧强夯振动速度的衰减变化情况和距隔 中,护理楼在强夯施工时,相邻的4号学生宿舍要进振沟30m处的振动速度是否对混凝土的浇筑造成 行主体结构混凝土浇筑,二者最近处距离仅30m 强影响.护理楼的强夯最大能级为3000kNm 单点 夯能级为3000kNmo3号学生宿舍楼强夯施工时,夯击数为6~9击.振动测试的目的是了解强夯时 邻近的2...
施工技术 2014年8月下 26 CONSTRUCTION TECHNOLOGY 第43卷第16期 D0I:10.7672/sjs2014160026 某工程异形曲面石材幕墙施工关键技术 陈新兵 (中铁建设集团有限公司,北京100131) [摘要]我国经济发展带来了建筑业和建筑技术的极大提高发展,也促成了造型复杂、技术含量高、漂亮美观的建 筑幕墙的出现,多以外形独特、异形多变展示其很强的艺术表现力,但同时带来幕墙设计与施工技术方面一些难 点,结合某创意产业园外立面异形曲面石材幕墙施工的应用实例,就其关键施工技术进行总结. [关键词]石材幕墙:曲面;施工;测量;质量控制 [中图分类号]TU767 [文献标识码]A [文章编号]1002-8498(2014)16-0026-02 Key Construction Technology of Some Engineering Special-shaped Surface Stone Curtain Wall Chen Xinbing (China Railway Construction Group Co.Ltd.Beijing 100131 China) Abstract:The economie development of China has brought greatly improvement in construction and architectural technology and some plex shape high technology and beautiful building curtain walls occurred.These curtain walls have special shape and strong artistic expression but their design and construction are difficult.Based on the practice of special-shaped surface stone curtain wall construction in a creative industrial park facade the key construction technologies are summarized. Key words:stone curtain wall;curved surface;construction;measurement;quality control 1工程概况 北京市某创意产业园展示中心建筑面积约 6000m2 地上4层,地下1层,外立面以玻璃幕墙为 底色,用异形石材幕墙来构建独特造型(见图1). 由于其外形独特,复杂多变,立面多维,幕墙施工技 术难度大,本文主要阐述计算机放样、空间测量、石 材干挂等关键技术在异形曲面石材幕墙施工中的 应用. 2计算机放样技术 本工程外形独特,多维的建筑立面,多变的建 图1外立面效果 筑参数,采用了在建筑领域不多用的以尺寸驱动参 Fig.1 The outer facade effect 数化建模的Po/E软件.依据建筑施工图,用Pro/ 石材幕墙约850m2 共由2356块石材组成,最复杂 E软件建模.根据不同部位幕墙的需要,自动生成 的石材有9个面.切分完成后生成的模型数据移交 不同方向的投影视图,生成施工所需的三维龙骨定 石材加工方完成下料、加工.因此本工程以三维建 位图(见图2)、石材幕墙分格图、石材加工图等. 模为主线,并依...
2011年5月上 施工技术 第40卷第340期 CONSTRUCTION TECHNOLOGY 65 某工程大跨空间网架整体提升施工技术 赵俊亮,王永梅 (江东南网架股份有限公司,粥江杭州311209) [摇要]针对西飞公司369导厂房的大面、大跨度的结构骑点和施工难度,详细命绍了整体提升、支撑体系设置, 提升平台设计、负载转移,提升下吊点设重等关键技术及唯点,并通过对施工全过程有限元仿真分析表明,诚术 高、舍理,保证了工程质量和施工全,实了网架各吊点回步提升和卸戴落值. [关键词]网架:整体提升:连撑体系:提升平台设计:下吊盘设置 [中密分类号]TU758 [立献标识码]A [立章编号]10028498(2011)09-0065-04 Integral Lifting Construction Technology for the Long-span and Large-area Space Grid Structure in Some Project Zhao Junliang Wang Yongmei (Zhejiang Southeast Lattice Frame Co.Ltd.Hangzhou Zhejiang 311209 China) Abstract:Based on the struetural characteristics and construction difficulties of the large-area and long- span for the No.369 powerhouse of Avie Xian Aireraft Industry Company Ltd.the key construction technology and difficulties for the integral lifting supporting system designing of lifting platform load transfer and the setting of lower anchoring point etc.are described in detail.At the same time FEA simulation analysis on the whole construction process shows that the construction technology is efficient and rational.As a result the engineering quality and construction safety are guaranteed and synchronous lifting and unloading for each lifting point are attained. Key words:grid:integral lifting:supporting system:design of lifting platform:setting of lower anchoring point 集群千斤顶液压整体提升技术是近年来在戒国土柱,柱顶标高除机库大门侧为21外,其余为 施工行业通步发展起来的新兴大型构件整体容装技26m.整个屋面网架自重约1967t. 术,多采用“钢纹线悬接承重、液压提升千厅顶集2工程特点及雅点 群、计算机控制同步”的方法.由于该技术的巨大 结构施工难点主要色括以下几方面:①通过对 提升能力及优越性能,到工程界的广泛关注,并...
施工技术 2014年9月下 50 CONSTRUCTION TECHNOLOGY 第43卷第18期 D0I:10.7672/sjs2014180050 某工程外墙开裂及面砖脱落原因分析 刘晖 (山西四建集团有限公司,山西太原030012) [摘要]结合某在建工程外墙裂缝及面砖脱落的实例,根据现场调查、取样检测和专家论证,从设计、材料、施工等 方面进行了全面的原因分析,提出了应吸取的教训,提出相应的施工处理意见和建议,采取了相应的改进措施,施 工质量得到有效控制. [关键词]装饰工程:外墙;保温;面砖;脱落;分析 [中图分类号]TU746 [文献标识码]A [文章编号]1002-8498(2014)18-0050-02 The Reason Analysis of Exterior Wall Cracking and Face Brick Falling off for an Engineering Liu Hui (Shanxi Sijian Group Co.Ltd.Taiyuan Shanxi 030012 China) Abstract:Combining with the example of a constructing engineer exterior wall crack and ceramic tile falling off and based on the field investigation sampling inspection and expert argument the reasons are analyzed from design material construction and so on and the lessons are put forword to be learned.The treatment advices and suggestions are put forward and the measures are applied so the construction quality is guaranteed. Key words:decoration;exterior wall;insulation;face brick falling off;analysis 1工程概况 脱落的问题.2013年4月4号公寓楼外墙保温装 某工程位于山西省太原市,包括6层的公寓楼饰层有局部下沉现象,3.4号公寓楼外墙大角局部 4栋,每栋建筑面积6638m2 框架结构(见图1). 出现不同宽度的裂缝,4号公寓楼东墙局部面砖脱 外墙外保温面砖从2012年7月开始,至2013年4 落,个别墙面出现面砖断裂等质量问题(见图2). 月结束,期间没有进行冬期施工. 2013年5月对外墙面砖黏结强度随机抽取12 个点进行拉拔试验,合格4个点;对尼龙胀栓拉拔试 验检测8个点,全部合格. 由 2原因分析 出士出士出击中 a平面 经现场查勘、核对工程技术质量控制资料和组 织专家论证,对外墙面砖裂缝脱落原因分析如下. 马巴 巴巴四四四巴巴 2.1设计变更不当 卫巴 四 1)原设计选自《05系列建筑标准设计图集》 巴四 巴四四巴四四四巴吧巴巴 05J3-1-E6分层抹25mm厚(局部50mm厚)保温砂 b立面 浆,抹3mm厚聚合物抗裂砂浆,柔性防水腻子找平 图1公寓楼示意 层和防水涂料面层. Fig.1 Engineering layout 现场由建设单位提出办理《工程(技术)核定 单》变更为:1:3水泥砂浆打底找平,聚合物砂浆...
[关键调】地下工程;深基坑;支撑;应力;监测 [中图分类号】TU753[文献标识码]A[文章编号]1002-8498(2013)19-0048-05 MonitoringAnalysis ofInnerSupport Stress in Some Engineering SunYafei,Xiong Zhuang,Hu Zhijun,Chen Minmin,Zhou Mo (China Construction First Group the Fifth Construction Co.,Ltd.,Beijing 100024,China) Abstract;Some foundation excavation engineering has plex geological conditions and inner support structure, large excavation area, so inner support stress monitoring is very important. According to geological conditions and construction requirements,this paperintroducedmonitoring process,including monitoring points layout, determination of monitoring frequency and alarm value.The monitoring data was analyzed systematically to ensure the successful construction. Key words:underground; deep foundation excavation; supports; stress; monitoring 1工程概况据进行综合分析和预测,进行预警、报警,并将监测 杭政储出(2004)69号地块工程位于杭州主城报告和分析报告及时提交业主、监理和安全风险管 区钱江新城区块,主要为1幢高28层的主楼,高理组,为安全风险管理决策提供技术支持。
施工技术 2013年1月上 76 CONSTRUCTION TECHNOLOGY 第42卷第1期 某工程地下连续墙逆作法施工技术 万利民,付梓,蔡宝华,邵启雁,黄明军,沈广俊,杨超,汪少华 (中国建筑第八工程局有限公司广州分公司,广东广州510665) [摘要]佛山某工程地质条件及周边环境复杂,设计采用逆作法施工技术.其支撑体系采用“核心筒地下连续墙 基坑周边变截面连续墙”作为永久支撑结构.针对地下连续墙体量大、钢筋笼质量大、吊装难度大、异形柱焊接制 作、接头位置处理及混凝土浇筑难度较大等问题,介绍了工程项目逆作法采用的地下连续墙施工工艺流程和操作 要点. [关键词]地下工程;逆作法;地下连续墙;施工技术 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2013)01-0076-04 Top-down Method of Diaphragm Wall in Some Engineering Wan Limin Fu Zi Cai Baohua Shao Qiyan Huang Mingjun Shen Guangjun Yang Chao Wang Shaohua (China Construction Eighth Engineering Division Guangzhou Branch Co. Ltd. Guangzhou Guangdong 510665 China) Abstract:Some engineering in Foshan has plex geological conditions and surrounding environment reverse method is adopted in the design.Core tube diaphragm wall and variable cross section diaphragm wall are adopted as permanent support structures.According to the problems such as large quantity of diaphragm wall and reinforcement cage difficulties in hoisting welding of special-shaped columns and concrete pouring this paper introduced construction process and key points in diaphragm wall construction with top-down method. Key words:underground;reverse construction method;diaphragm wall;construction 1工程概况 钢筋网片由钢筋、异形柱、型钢柱组成.异形柱、型 佛山市东平广场项目位于佛山市东平新城文 钢柱体量大,加工制作难度大,同时设计要求进行 华南路与裕和路交汇处,占地面积60000m2 规划总 焊缝检测、探伤检测,直接影响工期进度,且现场焊 建筑面积约70万m2 其中AB塔楼为42层大底盘 接的质量无法保证,应考虑选择专业钢结构公司加 超高层住宅,地下4层,基础由地下连续墙、冲孔桩 工制作. 基础组成,地下室采用逆作法施工,其中核心筒地 2)核心筒地下连续墙槽段接头处施工地下 下连续墙划分为16个槽段,最大槽段钢筋网片长 连续墙接头处双型钢...
2016年4月下 施工技术 第45卷第8期 CONSTRUCTION TECHNOLOGY 127 D0I:10.7672/8js2016080127 某工程卸料平台优化设计与施工 岳东成,孟成功,孙晓明,孙琳 (中建三局集团有限公司东北分公司,辽宁沈阳110179) [摘要]在建筑结构施工中,模板、钢管、扣件等材料均属于周转材料,其周转倒运方式通常借助卸料平台和垂直运 输设备,即:将楼层内的周转材料集中堆放到卸料平台后,借助塔式起重机等垂直运输设备将其吊装到上部楼层. 卸料平台的设计方式直接影响到材料周转的效率.针对建筑结构施工中常用的卸料平台进行创新式的优化设计, 对提高卸料平台安拆效率加快周转材料的周转使用意义重大. [关键词]卸料平台;优化;设计;施工 [中图分类号]TU733 [文献标识码]A [文章编号]1002-8498(2016)08-0127-03 Optimization Design and Construction of Discharging Platform of an Engineering Yue Dongcheng Meng Chenggong Sun Xiaoming Sun Lin Northeast Branch of China Construction Third Engineering Group Co.Lid.Shenyang Liaoning 110179 China) Abstract:In the construction of building structure the discharging platform and vertical transportation equipment is usually used for turnover of the formwork steel tube fasteners and other materials namely:the working materials are put inside the discharging platform and then hoisted to upper floor with vertical transportation equipment such as tower eranes.So the discharging platform design directly affeets the efficiency of the material turnover.According to these the discharging platform structure monly used in building construction is optimized which can improve the efficiency of the installation and demolition of discharging platform and accelerate material turnover. Key words:discharging platform;optimization;design;construction 随着施工技术和建筑市场的发展,建筑结构设准层配置3套水平向周转材料,拆除后集中到卸料 计越来越复杂,施工单位成本意识逐渐增强,施工平台通过塔式起重机运输到下一层周转使用,卸料 用周转材料周转效率和次数也逐渐提高,这就对施平台随施工进度逐层提升.由于进场较晚,业...
施工技术 2016年9月上 56 CONSTRUCTION TECHNOLOGY 第45卷第17期 D0I:10.7672/sgjs2016170056 某工程CFG桩复合地基设计及施工* 肖航,曹丹 (成都纺织高等专科学校建筑工程学院,四川成都611731) [摘要]根据北京某高层住宅地基处理实例,对比了级配换填、素混凝土换填和CF桩3种处理方案,经综合比较, 选择CFG桩复合地基处理方案.介绍了地基承载力确定、CFG桩施工技术及CFG桩复合地基承载力检测技术. 实践证明,主体结构封顶时,主体结构平均沉降在8mm以内,满足要求,且地基处理造价降低50%,经济效益显著. [关键词]地基;CFG桩;静载试验;沉降监测;设计;施工技术 [中图分类号]TU753.3 [文献标识码]A [文章编号]1002-8498(2016)17-0056-04 Design and Construction Technology of Composite Foundation with CFG Piles for Some Engineering Xiao Hang Cao Dan School of Civil Engineering Chengdu Textile institute Chengdu Sichuan 611731 China) Abstract:Taking foundation treatment of some high-rise house in Beijing as an example this paper contrasts three treatment schemes including gradation changing and filling plain concrete changing and filling CFG piles the treatment scheme of posite foundation with CFG piles is selected after prehensive parison.This paper introduces the determination of foundation bearing capacity construction technology of CFG piles and bearing capacity detection technology of posite foundation with CFG piles.Engineering practice shows that the average settlement value of the main structure is within 8mm when the main structure caps which meets the requirement the foundation treatment cost reduces 50% the economic benefit is obvious. Key words:foundations;CFG piles;static load test;settlement monitoring;design;construction 1工程概况 2地基处理方法对比选择 本工程位于北京市房山区,由4栋板式高层住2.1工程地质概况 宅楼、1栋商业配套及1层地下车库组成(见图1). 拟建场地25.0m深度范围内的地层按沉积年 本...