施工技术 2015年11月下 130 CONSTRUCTION TECHNOLOGY 第44卷第22期 D0I:10.7672/sgjs2015220130 龙湖项目毛坯住宅高品质交房施工质量控制技术 周建中,汤家志,黄俊杰 (中亿丰建设集团股份有限公司,江苏苏州215000) [摘要]毛坯交付的住宅项目,验收的重点在于满足“一户一验”的要求.“一户一验”重点和难点在于空间尺寸及 防渗漏控制.空间尺寸着重体现在一次结构、砌体及粉刷成型净开间、净深、层高及方正性;防渗漏主要为外墙、阳 台、卫生间、门窗等迎水部位质量控制.特别是龙湖项目要求毛坯住宅交付报事率不能大于(即在分户验收中,每 户验收需要整改的项目不能多于1项).因此在施工过程中不仅要注重空间尺寸及防渗漏措施,也要加强各个分 部分项过程施工的管控. [关键词]住宅;空间;尺寸;防渗漏;报事率 [中图分类号]TU712.5 【文献标识码]A [文章编号]1002-8498(2015)22-0130-04 Construction Quality Control Technology of High Quality Undecorated Residence in Longfor Projects Zhou Jianzhong Tang Jiazhi Huang Junjie (Zhongyifeng Construction Group Co.Lid.Suzhou Jiangsu 215000 China) Abstract:For the handover of undecorated residential building the emphasis of acceptance is satisfying *one separate acceptance for one household'.The key and challenge in‘one acceptance for one household'lie in spatial dimensions and seepage prevention and control.Dimensions mainly concern the size of primary structures and masonry works and the bay size clear depth story height and rectangularity of plastered rooms while seepage prevention mainly concerns the quality control of the water sides of external walls balconies toilets doors and windows.Particularly a Longfor residential project requires that the reporting rate for the handover of undecorated residential houses shall not exceed 1 (i. e. for separate acceptance of each household the item needing rectification shall not exceed 1).It is therefore important to value dimensions and seepage ...
施工技术 2017年4月下 12 CONSTRUCTION TECHNOLOGY 第46卷第8期 D0:10.7672/8gjs2017080012 高能级强夯置换处理软土地基孔隙水压力研究 马健,姜爽,刘丽 (北京泰斯特工程检测有限公司,北京102600) [摘要]以港口饱和软土地基处理为例,采用高能级强夯置换法进行地基处理.以确定施工参数和评价地基处理 效果为目开展强夯置换试验研究.通过对单点夯试验过程中孔隙水压力监测结果的分析确定施工参数,并分析强 夯置换墩体成型状态进而评价地基处理效果;通过对群夯试验过程中超孔隙水压力的消散情况分析确定每遍强夯 的间歇周期.试验结果显示:强夯置换墩体的形成与孔隙水压力的变化有特定的相关性,强夯置换墩体的成型深 度决定了强夯置换影响深度,强夯置换墩体的形成利于场区地基土强夯过程中超孔隙水压力的消散. [关键词]地基;高能级强夯置换;孔隙水压力;墩体;研究 [中图分类号]TU472.1 [文献标识码]A [文章编号]1002-8498(2017)08-0012-04 Research on Pore Water Pressure for Treatment of Soft Soil Foundation by High Energy Dynamic Compaction Replacement Method MA Jian JIANG Shuang LIU Li Beijing Taisite Engineering Testing Co.Ltd.Beijing 102600 China) Abstract:Taking saturation soft soil ground treatment in port as an example the high energy level dynamic paction replacement method is used for the foundation treatment.The study of the dynamic paction replacement test is worked out to determine the working parameters and evaluate foundation treatment effect.Based on the analysis of the monitoring of the pore water pressure during the single-point dynamic paction test the working parameters is defined.The analysis of dynamic paction replacement piers can evaluate foundation treatment effect.Based on the analysis of the pore water pressure monitoring results for the all process of dynamic paction the dynamic paction of intermittent cycle is determined.The test results show that the formation of the dynamic paction replacement piers and the cha...
施工技术 2014年1月下 38 CONSTRUCTION TECHNOLOGY 第43卷第2期 D0I:10.7672/sgjs2014020038 高空钢结构连廊整体提升关键施工技术 高雷雷 (中冶天工上海十三冶建设有限公司,上海201900) [摘要]结合超高层建筑钢结构连廊工程实例,对提升系统有限元分析、提升单元测量控制、高空调整就位等关键 技术进行了研究.相关结果表明,提升系统设计可靠,组合荷载下应力及变形均在允许值范围内;测量工艺及高空 就位方式选择合理确保了提升的顺利实施;针对提升过程的风险制定应急预案,有效保证了施工的安全性. [关键词]钢结构;连廊;提升;监测;施工技术 [中图分类号]TU758.1 [文献标识码]A[文章编号]1002-8498(2014)02-0038-04 The Key Construction of Integral Lifting for Steel Corridor at High Altitude Gao Leilei (CMTCC Shanghai Shisanye Construciton Co.Ltd. Shanghai 201900 China) Abstract:Combined with the practical engineering of steel corridor of tall buildings the finite element analysis for lifting system measurement and control for lifting unit adjustment location at high altitude are studied.The study results show that the design of the lifting system is reliable stress and deformation is under the allowable range of values measurement technology and the way to lift ensure the smooth implementation of improved construction.Contingency plans were developed in response the risk of the development process which effectively guaranteed the safety of the construction. Key words:steel structures;corridor;lifting;monitoring;construction 1工程概况 上海金虹桥国际中心工程总占地面积 35494m2 位于虹桥功能拓展区的中心地带,是上海 商务商贸副中心.该工程主体结构由南塔楼、北塔 楼及连廊3部分组成,形成“凯旋门”式结构.办公 塔楼地上29层,总结构高度143.7m 总建筑面积 20 146233m2(见图1).塔楼结构采用框架-核心筒型 a平面 钢混凝土组合结构体系,核心简为主要抗侧力结构 体系,剪力墙布置有独立箱形柱. 塔楼22~29层为连体层,高度为100.9~ 134.6m 形成高空钢结构连廊.连廊平面位于~ 轴/8~2轴,尺寸为42m×24.7m 中间无竖向 结构,为多层片状连体结构形式.连廊平面形式基 本一致,均采用H型钢梁及钢筋桁架楼承板组合结 构,钢连廊...
施工技术 2012年10月下 40 CONSTRUCTION TECHNOLOGY 第41卷第375期 高空转换层超重梁板结构承重架施工技术 朱良锋 (浙江宝业建设集团有限公司,浙江绍兴312028) [摘要]随着城市建设的发展,高层建筑的建筑功能越来越多元化,建筑结构也越来越复杂,为满足不同的功能需 求,转换层便成了许多高层建筑中不可缺少的结构.主要介绍一种高空转换层的超重梁板结构的支模体系,该体 系主要利用下部结构为型钢梁的支撑点搭设出一个承重平台,以此来支撑上部结构施工过程中的荷载.通过对该 平台式模板体系的设计思路和施工过程的介绍,论述了该支模承重体系较高的安全性和较强的可操作性. [关键词]高层建筑;转换层;梁板结构;承重架;施工技术 [中图分类号]TU731.2 [文献标识码]A[文章编号]1002-8498(2012)20-0040-03 Construction of Load-bearing Scaffold Placed for the Overweight Structure of the Transferring Layer Zhu Liangfeng (Zhejiang Baoye Construction Group Co. Ltd.Shaoxing Zhejiang 312028 China) Abstract:Along with the development of urban construction the building function of high-rise bees more diverse while the structure itself gets more plicated.To meet the requirements of certain specific function transferring layer structure is being indispensable for most high-rises.This paper mainly introduces an extraordinary scaffold system which is planned to support the overhang especially with loading.The system uses the substructure as an extended platform with anchored steel beams to carry loading during construction.With presentation of this design method the high safety and practicability of the system will be clear. Key words:tall buildings;transferring layer;beam and floor structure;load-bearing scaffold;construction 1工程概况 某工程总建筑面积86280m2 由一个整体地下 室和3幢高层建筑组成.地下室均为1层,地上部 分1号楼为32层,2号楼为21层,3号楼为33层. 1号楼10层以下结构由两个独立单体组成,两个单 体中间为小区出入口,总宽度为22.2m 中间设2排 独立高柱.在7层结构部位有一排框架连系梁将两 边结构连接,该部位梁顶面标高为18.520m.在10 层结构...
施工技术 2015年4月下 30 CONSTRUCTION TECHNOLOGY 第44卷第8期 D0I:10.7672/sgj82015080030 高空悬挑转换桁架施工模拟分析及应力监测 张振兴,刘宁波1,周勇,吴琴锋2,张宇,赵广坡2 (1.中建三局集团有限公司成都分公司,四川成都610041; 2.中国建筑西南设计研究院有限公司,四川成都610041) [摘要]成都华置广场2栋住宅为凯旋门式建筑设计,38层设计有悬挑钢结构转换桁架,支撑其上部12层钢筋混 凝土结构.在制定了初步钢结构施工方案后,为确保整体施工过程及建筑使用阶段钢结构桁架均处于安全可靠工 作状态,进行了整体建模与有限元施工模拟,并对桁架做了应力、变形分析.为监控结构应力水平,钢结构安装完 成后,布设了应力监测点,并将取得的数据与施工模拟的数据进行对比分析. [关键词]高层建筑;钢结构;转换桁架;悬挑;施工模拟;应力监测 [中图分类号]TU391.3 [文献标识码]A [文章编号]1002-8498(2015)08-0030-04 Construction Simulation and Stress Monitoring for Cantilevered Transfer Steel Truss of Super High-rise Building Zhang Zhenxing' Liu Ningbo' Zhou Yong' Wu Qinfeng? Zhang Yu' Zhao Guangpo2 (1.China Construction Third Engineering Co.Lad.Chengdu Construction Company Chengdu Sichuan 610041 China;2.China Southwwest Architectural Design and Research Institute Co.Ltd.Chengdu Sichuan 610041 China Abstract:The residence of Chengdu Chinese-estates Plaza has special triumphal arch design its upper concrete structure is supported by cantilever steel structure truss which locates at 38th floor.After determining the installation plans finite element construction simulation stress and distortion analysis are done to make sure the steel structure truss is safe during construction process and use phase.In order to monitor the level of stress after steel installation is pleted stress monitoring points are laid. Monitoring data and construction simulation data are pared at the end. Key words:tall buildings;steel structures;transfer truss;c...
施工技术 2014年1月下 88 CONSTRUCTION TECHNOLOGY 第43卷第2期 D0I:10.7672/sgjs2014020088 高空大跨度悬吊支撑平台施工技术 许洪元,李云龙1,许武,刘兰凤2 (1.中国建筑第六工程局总承包公司,天津300451; 2.山东聊城星光房地产开发有限公司,山东聊城252000) [摘要]针对高空大跨度型钢混凝土连体结构特点,以实际工程为例,详细介绍了高空大跨度型钢混凝土连体结构 采用钢筋悬吊工字钢平台支设结构模板的新型支模方法,包括方案原理、相关节点构造及创新的施工流程等关键 技术措施.工程实践表明,使用该技术不仅能安全有效地承载上部结构荷载及施工荷载,而且保证了高空混凝土 顺利浇筑及工程质量,有效解决了型钢结构高空大跨度连体结构施工难的问题. [关键词]型钢混凝土;悬吊;平台;支撑;施工技术 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2014)02-0088-02 Construction for High-altitude and Large-span Suspended Platform Xu Hongyuan' Li Yunlong' Xu Wu' Liu Lanfeng (1.General Company of China Construction Sixth Engineering Bureau Co. Lid.Tianjin 300451 China; 2.Shandong Liaocheng Xingguang Real Estate Development Co.Lid.Liaocheng Shandong 252000 China) Abstract:According to characteristics of high-altitude and large-span steel reinforced concrete connective structure based on engineering practice a new kind of support method was described which used steel bar suspended I-shaped beam platform to support the formwork.The key technologies were introduced in detail including program principle joints construction and the construction process of innovation. Engineering practice shows that this technology was safe and effective to carry the load of the upper part of the structure and construction loads and ensure the safe and quality of construction. Key words:steel reinforced concrete;suspension;platform;supports;construction 1工程概况 聊城星光城市广场位于聊城开发区,总建筑 面积80万m2 包括会展中心、商务办公楼、五星酒 店、会展办公公寓等,是一个城市综合体工程.其 中会展办公公寓高9...
施工技术 2014年3月上 50 CONSTRUCTION TECHNOLOGY 第43卷第5期 D0I:10.7672/5js2014050050 高空大悬挑结构新型斜拉悬模体系设计与施工* 王胜,孙磊,李翠翠 (青建集团股份公司,山东青岛266071) [摘要]针对高空大悬挑混凝土结构的施工难题,结合具体工程实例,创新研究形成了一种适用于高空悬挑结构施 工的新型斜拉悬模支撑体系,利用斜拉钢筋与工字钢挑梁及加固系杆形成高空悬挑模板支撑平台,同时通过试验 测试和有限元模拟,验证了该悬模体系的安全可靠性,并应用于工程实践,取得了良好的技术经济效果. [关键词]模板;高空悬挑结构;悬模体系;有限元分析;试验;施工技术 [中图分类号]:TU755.2 [文献标识码]A [文章编号]1002-8498(2014)05-0050-04 Design and Construction Technology of New Cable-stayed Suspension Formwork System for Overhead Cantilever Structure Wang Sheng Sun Lei Li Cuicui Qingjian Group Co.Ltd.Qingdao Shandong 266071 China) Abstract:For the construction problems of overhead cantilever concrete structures bined with specific examples of projects and innovatively researches this paper proposes a cable-stayed suspension formwork support system which is suitable for overhead cantilever structure construction using cable- stayed steel I-beam cantilever beam and reinforeed tie bars to form the overhead cantilever formwork support platform.At the same time experimental test and finite element simulation verify the safety and reliability of the suspension formwork support system which is used in engineering practice and the good technical and economic effect is achieved. Key words:formwork;overhead cantilever structures;suspension formwork system;finite element analysis;testing;construction 随着人们对建筑外观的要求越来越高,建筑物拉钢筋与工字钢挑梁及系杆形成高空悬挑模板支 大跨度、大悬挑等外观造型越来越多地被运用,这撑平台,并应用于工程实践,取得了良好的技术经 就给高空大悬挑结构的设计和施工带来了较大难济效果. 度.目前,解决此类技术难题主要有以下3种方法:1新型悬模体系设计 ①落地脚手架技术耗用大...