施工技术 2010年7月 102 CONSTRUCTION TECHNOLOGY 第39卷第7期 锚杆与锚索梁组合在开挖边坡加固中的应用 王迎法1,冯庆高2,周传波2,蔡鹏3 (1.中国地质大学岩土钻与防护教育部工程研究中心,湖北武汉430074;2.中国地质大学(武汉) 工程学院,湖北武汉430074;3.深圳市湛联基础建筑工程有展公司,广末深圳518052) [摘要]通过对边坡地质条件及其稳定性的分析,提出了采用铺杆与预应力锚索腰梁组合进行边坡加固的措施. 根据锚杆与预应力索腰梁组合结构在边坡支护中的应用情况,以及支护设计、施工工艺及其支护后的边坡稳定 性验算,证明了它是一种安全有效的边坡支护方法. [关键词]锚杆;预应力锚索;腰梁;边坡支护;稳定 [中图分类号]TU753.8 [文献标识码]A [文章编号]1002-8498(2010)07-0102-03 Application of Bolt and Cable-beam in Excavation Slope Reinforcement Wang Yingfa' Feng Qinggao2 Zhou Chuanbo2 Cai Peng' (1.Engineering Research Center of Rock-Soil Excapation and Protection Ministry of Education China University of Geosciences Wuhan Hubei 430074 China:2.Faculty of Engineering China University of Geosciences Wuhan Hubei 430074 China; 3.Shenshen Zhanlian Base Architecture Engineering Co.Ltd.Shenzhen Guangdong 518052 China) Abstract:Through analyzing geological conditions and stability of slope a bination slope reinforcement measure of anchor and prestressed anchor cable is put forward.Basing on practice application of this measure in slope support support design construction technology and stability calculation of slope after supported the authors find that this measure is a safety and effective slope support method. Key words:anchor;prestressed anchor cable;waist beam;slope support;stability 对于地质条件差而安全等级要求较高的开挖边15.5m 边坡安全等级为一级.被开挖部分山体的水平 坡,单纯使用错杆喷错进行支护可能无法满足工程要距离为150.0m 垂直高度为15.5m 按1:0.4分两次放 求,这时,可以采用错杆与预应力锚索梁组合进行支坡,放坡高度分别为8m和7.5m. 护,提高边坡的整体稳定性.预应力锚索腰梁是近年 由于山体开挖后的边坡稳定性将直接影响建筑物...
2014年3月上 施工技术 第43卷第5期 CONSTRUCTION TECHNOLOGY D0I:10.7672/5j52014050001 铝酸盐水泥掺量对早强聚丙烯纤维砂浆性能影响研究* 孙长征1 2,刘欢1,赵同峰.3 (1.沈阳建筑大学土木工程学院,辽宁沈阳110168;2.沈阳建筑大学建筑设计研究院,辽宁沈阳110015; 3.辽宁省交通高等专科学校道路与桥梁工程系,辽宁沈阳110122) [摘要]通过向4种不同砂率的水泥砂浆中分别掺入3种不同百分比的铝酸盐水泥进行对比分析试验,找出最佳 铝酸盐水泥掺量.在此基础上,为了进一步改善砂浆的力学性能,通过向早强砂浆中掺入6种不同体积掺量的聚 丙烯纤维,进行对比分析试验,提出聚丙烯纤维的最佳掺量.结果表明:当铝酸盐水泥掺量为5%时,聚丙烯纤维体 积掺量在0.2%-0.4%时.基体3d抗折、抗压强度可分别达到12.1MPa和57.3MPa.且强度后期不倒缩.28d抗压 强度可达到91.7MPa.该体系的SEM微观图貌显示,水泥水化充分,结构致密无裂纹. [关键词]砂浆;早强;砂率;聚丙烯纤维 [中图分类号]TU528.53;TQ177.6 [文献标识码]A [文章编号]1002-8498(2014)05-0001-04 Study on the Effect of Aluminate Cement Content on Polypropylene Fiber Mortar with Early Strength Sun Changzheng2 Liu Huan' Zhao Tongfeng. (1.School of Ciil Engineering Shenyang Jianzhu Unirersity Shenyang Liaoning 110168 China; 2.Architectural Design Research Institute Shenyang Jianzhu University Shenyang Liaoning 110015 China; 3.Department of Road and Bridge Liaoning Provincial College of Communications Shenyang Liaoning 110122 China) Abstract:Through the parative analysis of the test in which three kinds of different percentage of aluminate cement is added to four different sand ratio of cement mortar to find out the best content of aluminate cement.On the basis in order to further improve the mechanical properties of mortar through the parative analysis of the test in which six kinds of volume content of polypropylene fiber is added to the early strength cement mortar to find out the best content of polypropylene fiber.The results ...
2015年9月下 施工技术 第44卷第18期 CONSTRUCTION TECHNOLOGY 127 D0I:10.7672/5j52015180127 铝合金活动房基座深化设计及施工组织研究* 蒋博雅,张宏 (东南大学建筑学院,江苏南京210096) [摘要]装配式多功能铝合金活动房具备了典型的工业化特点,即工厂化、模数化、标准化.以建筑面积为44m2的 太阳能铝合金活动房的基座装配作为研究对象,从深化设计概念引入,展开讨论了基座深化设计过程、基座最终方 案、材料订单、辅助工具订单、施工组织工序、进度控制、人员任务安排几方面的内容. [关键词]安装工程;装配式;深化设计;铝合金活动房;基座;施工组织 [中图分类号]TU7 [文献标识码]A[文章编号]1002-8498(2015)18-0127-03 Deepening Design and Construction Organization Research of Framework Base of Aluminum Alloy Structure Activity Room Jiang Boya Zhang Hong (Architecture School of Southeast Unirersity Nanjing Jiangsu 210096 China) Abstract:The modular multi-function aluminum alloy structure activity room has the typical characteristics of industrialization which is industrial modulated standardized.44 square meters of solar aluminum trailer is used as the researched object.From the deepen design concept the paper discusses the design process of framework base the final plan material order auxiliary tool order construction process time control and personnel task arrangement. Key words:installation prefabricated;deepened design;alloy structure activity room;framework base; construction organization 在装配式多功能铝合金活动房的设计研究中,座点.基座框架是由标准的80mm×80mm铝型材, 轻型工业化建筑产品集成整体家具橱柜、太阳能光型号为APS-8-8080工厂装配而成,并配有 电光热系统,实现了自保障零能耗.多功能铝合金80mmx80mm强力角件、T形螺栓等标准构配件. 活动房的建筑面积是44m2.整个建筑产品包含了3 为使基座稳固,构配件统一规格,基座材料轻便,易 大模块,即太阳能模块、主体模块、基座模块,其中 于固定和运输装配,特对其深化设计,经反复推敲, 主体单元模块拥有独立结构体,独立围护体和独立 确定基座最终方案. 空间体3大独立体,可以单独在工厂生产,现场组 以下按照工业化建筑产品的三大设计特点:模 装.而铝合金活动房体积小、轻便的特点决定了它 块化、标准化、装配化,对装配式多功...
2015年9月上 施工技术 第44卷第17期 CONSTRUCTION TECHNOLOGY 67 D0I:10.7672/sgjs2015170067 铝合金模板早拆时间确定方法研究* 罗启灵1,王卫仑,刘洪海2,胡大伟2 (1.深圳大学广东省滨海土木工程耐久性重点实验室/深圳市土木工程耐久性重点实验室,广东深圳518060; 2 中建三局第一建设工程有限责任公司,湖北武汉430040) [摘要]采用简化权重成熟度法和等效龄期成熟度法对北京浦项中心项目的C40泵送混凝土的抗压强度进行预 测,从而确定铝合金模板早拆时间,与实测的同条件养护试块抗压强度做对比,简化权重成熟度法(预测值/实测 值)的均值为1.00,变异系数为8.2%,简化成熟度法比等效龄期成熟度法预测准确性高,适用的预测强度范围更 大,适合铝合金模板早拆时间的确定. [关键词]模板;铝合金模板;混凝土强度;拆模时间 [中图分类号]TU755 [文献标识码]A [文章编号]1002-8498(2015)17-0067-03 Study on the Method for Determining Removal Early Time of Aluminum Alloy Formwork Luo Qiling' Wang Weilun' Liu Honghai Hu Dawei? (1.Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering/Shenzhen Durability Center for Civil Engineering Shenzhen University Shenzhen Guangdong 518060 China;2.The First Construction Engineering Limited Company of China Construction Third Engineering Bureau Co.Ld.Wuhan Hubei 430040 China) Abstract:The pressive strength of the C40 pumping concrete in Beijing Pohang Center Project is predicted by the simplified weighted maturity method and the equivalent age maturity method under the same condition curing.The results show that the simplified weight maturity method can high accurately predict the pressive strength which the mean of predicted value)/(measured strength)is 1.00 and the C.V is 8.2% the simplified weighted maturity method is suitable greater intensity range of prediction strength and is suitable for determining removal early time of aluminum alloy formwork. Key words:formwork aluminum alloy formwork concrete strength;formwork removal time 0引言 只是根据相关经验制定了铝合金模板拆模的时间 铝合金模板系统在国外已得到广泛应用.近计划.当然,现场可采用留置同条件养护的试块, 几年来,国内才逐步开始使用.铝合金模板系统的在适当的龄期进行抗压强度试验,按照GB50204一 重要特点是工厂化施工,将墙模、顶模和支撑等几 2002(2011年版)做出拆模时间的判断,但是非常繁 大独立系统有机地融为一体,一次将模板全部拼装 琐,所以有必要采用更加简便的方法来确定拆模 完,实现一次浇筑;采用V形支撑模板支撑柱头,实 时间. 现早拆模板,不拆支撑,可提高施工效率、降低 简化权重成熟度法和等效龄期成熟度法只需 成本21. 要记录混凝土的温度就可简便地实时预测混凝土 根据《混凝土结构工程施工质量验收规范》 的早期强度从而确定拆模时间.本文结合北京浦 GB50204--2002(2011年版)要求,底模拆除时各构 项中心项目对早拆时间的确定方法进行研究. 件混凝土强度必须达到设计强度的规定百分率的 1试...
施工技术 2016年11月下 56 CONSTRUCTION TECHNOLOGY 第45卷第22期 D0I:10.7672/sgjs2016220056 铝合金模板在预制装配式结构施工中的应用 刘玉涛,李小玥,吴坚荣 (中天建设集团有限公司,浙江杭州310020) [摘要]以中天之江诚品项目为例,介绍了预制装配式结构施工中预制墙板、楼梯、叠合板的吊装及后浇部位的施 工等关键施工技术,创新性地在后浇连接部位使用铝合金模板,提高了后浇部位的施工质量,且符合绿色施工理 念,工业化效率高.铝合金模板与预制装配式结构的完美结合,提高劳动生产率,加快建设速度,降低工程成本,提 高工程质量,符合建筑工业化的发展方向. [关键词]预制装配式;铝合金模板;叠合板;吊装;施工;应用 [中图分类号]TU756 [文献标识码]A [文章编号]1002-8498(2016)22-0056-03 Application of Aluminum Formwork in Prefabricated Construction Liu Yutao Li Xiaoyue Wu Jianrong ZhongTian Construction Group Co.Ld.Hangzhou Zhejiang 310020 China) Abstract:Based on a case study of Zhongtian Zhijiang Eslite this paper introduces many key construction techniques applied in hoisting of PC walls and slabs stairs laminated slabs and construction of post-pouring parts of prefabricated construction.Aluminum formwork has been creatively employed in post-pouring connective parts successfully improving relevant construction quality and conforming to green construction concept with great high industrial efficiency.The bination of aluminum formwork and prefabricated structure raises labor productivity enhances the speed of construction lowers the projeet cost improves projeet quality therefore meets the direction of architeeture industrialization. Key words:precast;aluminum formwork;laminated slab;hoists;construction;application 0前言 其中13-2号楼为公共租赁房,地下1层,地上17 在过去的十几年,我国建筑业经历了快速发展 层,建筑面积13553.4m2.地下部分及首层采用现 期,创造了大量的产值,但存在着生产效率低、质量 浇结构形式,2层以上采用预制装配式.预制装配 问题较多、作业条件差、资源消耗多、建筑垃圾产生 结构范围包括剪力墙、...
[关键词]地下管廊;铝合金模板;单侧大模板;检查;验收;施工 [中图分类号]TV554*.9[文献标识码]A[文章编号]1002-8498(2017)08-0127-03 ApplicationofAluminumAlloyFormworkDuringConstructionof Cast in Underground General Pipe Gallery WU Tongchang,LI Changze,HE Zhenhua (China Construction Eighth Engineering Bureau Co.,Ltd.,Shanghai 200135,China) Abstract: With the example of an underground pipe gallery in Guangdong Province, the application of aluminum alloy formwork in the cast in underground pipe gallery is introduced. The aluminum ally formwork for advantages, the innovation of cancelling the split bolt of pipe gallery wall sealing, construction process and quality inspection and acceptance of the aluminum alloy formwork are elaborated. Key words:underground pipe gallery; aluminum alloy formwork; single side formwork; inspection; acceptance; construction 1工程概况表1综合管廊标准断面 广东省某地下综合管廊工程,综合管廊全长Table 1 Standard section of general pipe gallery 41km。
[关键词】模板;铝合金模板;施工技术;经济效益 [中图分类号]TU755.2 [文献标识码]A [文章编号]1002-8498(2012)23-0079-04 ConstructionTechnologyofAluminumAlloyFormworkSystem andItsBenefitAnalysis Liu Xuehong,Cheng Haiyin,Lu Jianfei,Xia Weiqiang (Zhongtian Construction Group Co.,Ltd.,Hangzhou,Zhejiang 320000,China) Abstract:Aluminum alloy is a new kind of formwork system. Based on its application on two projects in Guangdong and Wuhan,its application characteristics,technology principle,points for attention, operation key points and economic benefits are analyzed and pared with other formwork.The engineering practice shows that the aluminum alloy formwork system can save energy and protect environment,improve civilized construction, speed up construction process,improve engineering quality and save cost. With the technology, good economic and social benefits can be gained. Key words;formwork; aluminum alloy formwork; construction; economic benefit 铝合金模板体系是一种新型建筑模板体系,在模板体系在武汉复地东湖国际和广东文冲万科两 国际上已经使用多年,特别是在美国,已经具有几个项目的应用情况,对铝合金模板体系的应用特 十年的使用历史。
2016年1月下 施工技术 第45卷第2期 CONSTRUCTION TECHNOLOGY 93 D0I:10.7672/8gjs2016020093 铝合金早拆模板在某工程中的应用* 牛潮,黎文方,薛刚2,王红媛2,徐巍2,张鹏2 (1.广东奇正模架科技有限公司,广东阳江529500;2.中国建筑一局(集团)有限公司,北京100070) [摘要]某项目工程核心简采用外爬内支施工技术,即核心筒竖向结构外墙采用液压爬升模板,核心筒竖向结构内 墙、水平结构采用铝合金模板体系整体同步施工.应用结果表明,采用铝合金模板的混凝土构件尺寸准确,表观效 果优良,施工进度满足了液压爬模和钢结构施工的流水节拍,加快了工程进度并节约了工程成本.笔者根据该工 程的特点系统介绍外爬内支施工技术及施工中应该注意的相关事项. [关键词]高层建筑;核心筒;液压爬模;铝合金模板;施工技术 [中图分类号]TU755.2 [文献标识码]A [文章编号]1002-8498(2016)02-0093-05 Application of Aluminum Alloy Early Dismantling Formwork in a Project Niu Chao' Li Wenfang' Xue Gang? Wang Hongyuan2 Xu Wei? Zhang Peng? (1.Guangdong Qizheng Formswork Co. Lid.Yangjiang Guangdong 529500 China; 2.China Construction First Building Group)Co.Lad.Beijing 100070 China) Abstract:The core tube of a engineering applies outside climbing and inside supports construction technology namely the vertical outer wall applies hydraulic climbing formwork and the vertical inner wall and horizontal structure applies aluminum alloy formwork for integral synchronous construction.The application results show that the concrete using aluminum alloy formwork has precise size excellent appearance and the construction schedule can meet hydraulic climbing formwork and steel structure construction.According to the engineering characteristics the authors introduce the construction of outside climbing and inside supports and corresponding notes. Key words:tall buildings;core tube;hydraulic climbing formwork;aluminum alloy formwork:construction 0引言 如图1所示,包括地下室4...
2014年7月下 施工技术 第43卷第14期 CONSTRUCTION TECHNOLOGY 171 D0I:10.7672/sgjs2014140171 钢结构连接摩擦面误涂漆处理措施试验研究* 李相勇,吴兆旗2,庄宁2,郑剑智2 (1.浙江东南网架股份有限公司,浙江杭州311209;2.福州大学土木工程学院,福建福州350108) [摘要]对涂有酚醛防锈漆的摩擦型高强螺栓连接摩擦面分别采用香蕉水清洗、喷砂、百叶轮砂纸打磨、砂轮打磨 等方法做表面处理,并进行抗滑系数试验测试.结果表明误涂防锈漆会严重降低连接面的抗滑移系数,无论经过 何种方法进行摩擦面处理,抗滑移系数都不能达到未涂漆的情况.用香蕉水洗、喷砂和砂轮细磨处理摩擦面具有 相对理想的效果,测得处理后的连接的抗滑移系数可达到0.30以上,其中砂轮细磨连接面的抗滑移系数可达 0.377.利用测得摩擦系数进行设计校核,如能满足设计要求,可采取相应处理措施对误涂油漆摩擦面进行处理. [关键词]钢结构;防锈漆;摩擦面;抗滑移系数;高强螺栓;试验研究 [中图分类号]TU39.03 [文献标识码]A [文章编号]1002-8498(2014)14-0171-04 Experimental Investigation for Processing the Mistakenly Painting Steel Junction Surface Li Xiangyong' Wu Zhaoqi? Zhuang Ning2 Zheng Jianzhi2 (1.Zhejiang Southeast Space Frame Co.Lid.Hangzhou Zhejiang 311209 China; 2.College of Ciril Engineering Fuzhou University Fuzhou Fujian 350108 China) Abstract:In this paper the steel junction surface coated with phenolic antirust paint were processed respectively by means of banana oil cleaning grit blasting sandpaper polishing grinding wheel polishing and then were experimentally tested to determine their sliding coefficients.The testing results show that the coating antirust paint will seriously reduce the sliding coefficient and no matter what method is used to process the surface the resistance to slide can not achieve the unvarnished situation. The banana oil cleaning the grit blasting and the grinding wheel polishing finely are the relatively good ways to process the surface coated and the sliding coefficients of the surface pro...
2017年4月上 施工技术 第46卷第7期 CONSTRUCTION TECHNOLOGY 53 D01:10.7672/sgjs2017070053 钢结构装配式住宅造价分析及降低措施 尹义松,霸虎,韩月涛 (中建钢构有限公司,天津300383) [摘要]针对目前钢结构住宅造价普遍高于传统现浇混凝土结构住宅的现状,从钢构件模块化管理、减少围护结构 和内隔墙工作量、工期、装配式建筑政策扶持等方面,分析降低钢结构装配式建筑造价措施及可行性,为钢结构装 配式建筑真正切人市场提供参考. [关键词]钢结构;装配式;住宅;工业化;造价;模块化 [中图分类号]TU94 [文献标识码]A [文章编号]1002-8498(2017)07-0053-04 Analysis and Reducing Measures of Steel Structure Fabricated House Cost YIN Yisong BA Hu HAN Yuetao China Construction Steel Structure Co.Ltd.Tianjin 300383 China) Abstract:Aiming at the cost of steel assemble housing is generally higher than the current traditional cast-in-situ concrete structure housing steel modular management partition wall retaining structure reduction construction period and policy support and other aspects are summarized to analyze steel structure prefabricated construction cost measures and feasibility providing a way for prefabricated buildings into market popularly. Key words:steel structures;precast;residence;industrialization;cost;modularization 钢结构及预制围护结构具有自重轻、工期短、类似项目的钢结构住宅项目造价对比分析如表1~ 劳动力投入较少、抗震性能好、质量可靠、安全环保4所示. 等一系列优点.钢结构建筑的得房率比传统钢筋 从表中可以看出,70m高度以内、地震烈度7度 混凝土建筑要高6%~10%且空间布置灵活.目 0.15g地区商品房住宅,钢结构装配式住宅结构比 前,钢结构装配式建筑比例不足5%,且钢结构装配 短肢剪力墙造价高出约150元/m2;而70m以上商 式建筑以政府背景的教育建筑、保障房建筑及自行 品房住宅,钢结构装配式住宅比短肢剪力墙造价高 开发的房地产为主,真正进入市场化的钢结构装配 出约400元/m2.考虑到钢结构装配式住宅自重 式建筑基本没有,其主要原因是造价过高.钢结构 轻、地基及基础造价低的优点,钢结构装配式住宅 装配式建筑市场化任重道远. 建筑每m2综合造价还会降低.但钢结构装配式住 1钢结构装配式建筑造价分析 宅综合造价高于传统结构形式住宅,其主要原因为 目前建筑市场以中高层为主,尤其是住宅市 钢材含量高且综合单价高、ALC隔墙条板价格 场.而中高层住宅市场以短肢剪力墙为主.对于 较高....
施工技术 2014年10月下 66 CONSTRUCTION TECHNOLOGY 第43卷第20期 D0I:10.7672/sgjs2014200066 钢结构工程现场负温焊接技术措施 邢海龙,刘健博 (中建一局钢结构工程有限公司,北京100070) [摘要]钢结构现场焊接是施工中的重点、难点之一,冬期负温度下的焊接质量控制更是钢结构施工企业面临的难 题.结合乌鲁木齐某工程实践,提出了负温焊接的质量通病和形成原因,总结了钢结构冬期焊接施工经验以及保 证钢结构负温焊接质量的技术措施. [关键词]钢结构;负温;焊接;技术措施 [中图分类号]TU758.163 [文献标识码]A [文章编号]1002-8498(2014)20-0066-02 Technical Methods for Negative Temperature Welding on Site of Steel Structures Xing Hailong Liu Jianbo China Construction First Division Steel Structure Engineering Co.Lad.Beijing 100070 China) Abstract:Welding on site is the difficulty for steel structures especially the welding under negative temperature.Combining with the practice of an engineering in Urumqi the quality problems and forming reasons of negative welding were put forward.The construction experiences and technical methods assuring welding quality were summarized. Key words:steel structures;negative temperature;welding;technical methods 1工程概况 响.淬硬倾向越大,越易产生裂纹.钢结构中采用 乌鲁木齐市属中温带干旱大陆性气候区,以气的钢材主要有两种:碳素结构和低合金结构钢,常 候干燥,降雨量小,冰冻期长,昼夜温差变化较大,见的钢结构材料中,碳素钢主要为Q235 低合金结 春、秋多风,夏季短促而炎热,冬季漫长且严寒为其构钢主要为Q345 Q390 Q420.低合金钢含有锰、 主要特征.乌鲁木齐新客站站房及雨篷相关工程钒等合金元素而具有较高强度.Q345 Q390 Q420 中,钢结构构件多为30 35 40 50 70mm厚钢板拼的屈服强度比Q235提高将近一半,抗拉强度也提 接、卷制、焊接而成,主构件材质多为Q345C 高不少.但抗拉强度提高时相对降低了塑性和韧 Q345GJC Q420GJC等低合金钢.由于乌鲁木齐新 性,对焊接结构来说增加了转脆倾向.焊接时,近 客站ZF标工程为兰新第二双线工程重要的配套工 缝区的加热温度很高,使奥氏体晶粒发生严重长 程,工期要求紧,为按期完成施工任务,进行冬期焊 大,当快速冷却时,粗大的奥氏体将转变为马氏体. 接施工. 由金属强度理论可知,马氏体是一种脆硬组织,发 2负温焊接的质量通病及其成因分析 生断裂时只消耗较低的能量.因此,焊接接头有马 1)根据以往施工经验,在进行钢结构冬期焊接 氏体存在时,裂纹易于形成...
2010年7月 施工技术 第39卷第7期 CONSTRUCTIONTECHNOLOGY 35 钢结构安装塌事故案例分析及警示 郭正兴,朱张峰,牛萌 (东南大学土木工程学院,江苏南京210096) [摘要】近年来,钢结构在大跨度厂房和大型公共建筑工程的钢屋盖中得到越来越多的应用,施工工期的无节制加 快和钢结构安装施工人员的素质下降,导致了销结构安装工程的坍塌事故增多.介绍几起大跨度钢屋盖安装坍增 事故案例,进行其安全技术分析,总结所得到的警示. [关键调]钢结构安装;工程事故;坍場;方案论证 [中图分类号】TU398.1 [文献标识码】A [文章编号]1002-8498(2010)07-0035-05 Case Analysis and Warning of Installation Collapse Accidents ofSteelStructure Guo Zhengxing Zhu Zhangfeng,Niu Meng (ScholfCiilEngineering SouheasUirsiy Nanjing,Jiangs210096 Chin) Abstract;Steel structure has more and more application for steel roof of long-span workshop and large- scale public building engineering in the recent years. Installation collapse accidents of steel structure increase due to immoderation reduction of construction period and low quality of constructors. Authors introduce several installation collapse accident cases of long-span steel roof conduct the analysis for their safety technology and summarize obtained warnings. Key words;installation of steel structure; engineering accident; collapse; scheme demonstration 随着2010年上海世博会等国家重大社会经济活 dFaulty) 次重大(数合) 动的展开,我国近几年建设了一大批高标准、高规格的 体育场馆、会议展览馆、轨道交通车站、机场航站楼等 大跨度钢结构公共建筑.大跨度空间钢结构施工速度 1 00) Near Miss 1000次隐由 越来越快,相反其施工难度却越来越大.因此,大跨度 Dagmvs Codiis 空间钢结构安装过程中其安全风险也越来越大. Dingercus Actiens Prperty Dmage 1零事故安全文化的理念 危险状况、绝险行为,财产探失 国外非常强调零事故的安全文化理念,即将零事 故作为共同的文化理念,作为共同的奋斗目标.在零 图1工程事故的冰山模型 事故的目标下,注重事故控制,强调安全指令上传下达 Fig.1 Iceberg model of engineering accidents 和加强安全信息及时. 案把关,加强过程控制和关注实施细节. 国外零事故的定义为:预防可能事故,包含重 2钢结构安装坍塌事故类型及原因剖析 大伤亡事故、财产损失、停工、施工局部受限制和进度 2.1钢网格工程安装坍塌事故 延误等. 近年来大大小小的钢网格结构工程事故不断发 国外的安全工程师认为:工程施工的安全事故发 生.由于网格结构多用于公共建筑和工业广房,人员 生规律遵循“工程事故冰山模型”,即一次重大安全事 密集,贵重设备与设施很多,一旦发生重大安全事故, 故,建立在100次的小安全事故之上;100次小安全事 特别是钢网格倒場,将对人民生命和国家财产造成巨 故又建立在1000次安全隐患上(见图1). [收稿日期】2010-05-10 因此,钢结构安装工程要保证施工安全,应全面贯 [作者简介】郭正兴,东南大学土木工程学院教授,博士生导师, 南京市四牌楼2号210096,电话:(025)83790278,E-mail: 彻零事故的安全文化理念,吸取安全事故教训,重视方 guezx195608@ 126. 万方数据
36 施工技术 第39卷 大损失,产生恶劣的社会影响.钢网格工程安装場 施工单位对设计有不同意见或建议时,理应及时 事故的主要原因如下. 会同设计部门协商修改,重视安全施工,避免发生纠 1)施工...
[关键词】航站楼:钢彩带:网壳结构:钢桁架;播摆柱 [中图分类号]TU391[文献标识码】A[文章编号】1002-8498(2011)01-0036-05 ApplicationofSteelStructureinAirportTerminalBuilding Shu Weinong,Zhu Zhongyi (BeijingInstitutefArchiecturalDesign,Bejng100045,China) Abstract;Steel structure engineering of airport building has characters as plex forming, super long structure, plex structure selection, support and joint. Based on practical engineering, roof forming, supporting system of roof,earthquake resistance ability design principle,temperature stress and special joint design of terminal building are introduced. According to different problems, corresponding measures are adopted. Furthermore, effective length factor, nonlinear stability and intermal force transmission of steel ribbon are analyzed. Key words:terminal building; steel ribbon; reticulated shell; steel truss; sway column 航站楼具有柱网较大、高大空间较多、屋顶造型昆明新机场航站楼南北长约850m,东西宽约 较复杂,跨度较大、建筑使用功能要求较高、需要适1120m,总建筑面积约54.83万m²,如图2所示。
【关键词】钢结构;铸钢;建筑设计;结构设计;施工;监测 [中图分类号】TU391;TU973.13【文献标识码]A[文章编号]1002-8498(2012)18-0009-08 TheApplicationofSteelStructureinTianjinCulturalCenter Chen Zhihua (Schoolof Civil Engineering,Tianjin Universty,Tianjin 300072,China) AbstractSt ruture wasaplidtheuseumgallerybrarygrandtheatrandinbintf Tianjin Cultural Center. Among which Yingbin tower adopts cast steel structure system.The conceptual design of these five project was introduced and more attention was paid to the structural design and construction. Some experience for design and construction of special and plicated steel structure was accumulated from the participation in these 5 projects, especially of Yingbin tower, library and grand theater.Theoverallviewof theapplicationofsteelstructureinTianjin CulturalCenter wasshowedinthis paper. Key words;steel structures; cast steel; architectural design; structural design; construction; monitoring 1工程概况阳光乐园大剧院 文化中心位于天津市河西区,规划建设博物图书馆
银河购物中心美术馆博物馆 馆、美术馆、图书馆等文化、休闲设施,通过与景观 轴、中心湖、生态岛等景观设施有机结合,偕同周边自然博物馆 区域已有的天津自然博物馆(天鹅)、中华剧院、科迎宾塔 技馆等建筑,共同形成布局合理、特色鲜明的文化 聚集中心、市民休闲活动中心,成为天津的标志性 区域。
[关键词】钢结构;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(2012)09-0035-03 InstallationTechnologyofSteelStructureinNational ExecutiveLeadershipAcademy Wang Feng, Li Zuojun (The First Company, China Xinxing Construction Development Corporation, Bejing 100071, China) Abstract;The architecture area of National Executive Leadership Academy is 40 061. 9 square meters. includes steel-skeleton columns, steel truss, steel beams and C type purlines, which is diffieult for hoisting and is short for construction period.Especially it is difficult for steel truss installation in arc core tube and embedded parts’ position. By adopting a series of technical measures, these difficulties are solved successfully , a series of super-limit and super-high members are favorably hoisted on place. Key words;steel structures; hoisting; position; construction 1工程概况 远,超出塔式起重机起重能力和回转半径范围的个 全国组织干部学院工程建筑面积40061.9㎡²,别钢构件,使用汽车式起重机吊装。
施工技术 2016年7月下 138 CONSTRUCTION TECHNOLOGY 第45卷第14期 D0I:10.7672/8js2016140138 钢结构双层压型钢板保温屋面施工技术 施耘,陈旭1,王佳全2 (1.南通建工集团股份有限公司,江苏南通226001; 2.苏州大学金螳螂建筑学院,江苏苏州215123) [摘要]上海大众汽车有限公司宁波分公司CP6工程项目总装车间,屋面采用的是一种新型节能型双层压型钢板 保温屋面,这种钢结构屋面具有节点安装形式复杂、安装工序繁多、操作难度较大等特点.针对性介绍了双层压型 钢板保温屋面的构造、施工顺序、主要材料性能、安装机具、安装工艺、细部节点的安装方法、注意事项及安装操作 时应采取的相应措施,并对复杂形式节点的安装顺序及方法进行研究.结果表明,工程质量符合国家规范规定. [关键词]钢结构;屋面;双层压型钢板屋面;细部节点;安装 [中图分类号]TU761.1*2:TU391 [文献标识码]A[文章编号]1002-8498(2016)14-0138-04 Construction Technology of Double Deck Steel Plate Heat Insulation Roof Shi Yun' Chen Xu' Wang Jiaquan2 (1.Nantong Construction Group Co.Lad.Nantong Jiangsu 226001 China; 2.Gold Mantis School of Architecture Soochow University Suzhou Jiangsu 215123 China) Abstract:For assembly workshop of Ningbo Branch of Shanghai Volkswagen Co.Ltd.CP6 project the roof is a new type of energy saving type double pressure type steel roof the steel structure roof has the node installation form the installation process is more difficult and so on.In this paper the construction construction sequence main material properties installation tools installation process method of plex type of nodes considerations and the measures taken during installation operation are introduced.Meanwhile the installation sequence and method of plex form nodes are studied.The results show that the engineering quality is in accordance with the national standard. Key words:steel structures;roofs double deck steel roofs:detail nodes:installation 双层压型钢板组合型节能保温屋面具有刚度1工程...
施工技术 2017年9月下 4 CONSTRUCTION TECHNOLOGY 第46卷第18期 D01:10.7672/js2017180004 钢结构住宅轻钢龙骨复合墙板体系施工技术 张劲帆,余佳亮,陈韬,罗琴丽,张耀林 (中建钢构有限公司,广东深圳518040) [摘要]基于泰州绿色农居建筑集成系统示范项目,结合秸秆板轻钢龙骨复合墙板的研发,探讨了轻钢结构住宅预 制装配式施工的特点.根据分厂内预制加工及现场装配式施工2个阶段,总结了本项目预制装配式施工全过程的 工艺及施工流程.预制装配式施工具有质量易于保证和现场工期短等特点,有效地减少现场湿作业从而改善施工 现场环境,直接及间接经济效益明显.秸秆板轻钢龙骨复合墙板外侧覆盖导热系数较低的秸秆板材,降低了外墙 的传热系数,从而提高房屋的保温性能以降低建筑能耗,且纯天然秸秆板材,原材料来自于废弃稻草的回收循环利 用,经济效益和社会效益显著. [关键词]钢结构;装配式;轻钢龙骨;复合墙体:泡沫混凝土:节能 [中图分类号]TU741 [文献标识码]A[文章编号]1002-8498(2017)18-0004-04 Construction Technology of Light-gauge Steel Joist Composite Walls System in Steel Structure House ZHANG Jinfan YU Jialiang CHEN Tao LUO Qinli ZHANG Yaolin (China Construction Steel Structure Co.Lid.Shenzhen Guangdong 518040 China) Abstract:Based on the construction of Taizhou green rural house along with the research of straw board covered cold formed steel framed posite slab the advantages of prefabricated construction technique are discussed.Parted into two stages including off site prefabricated construction and on site reassemble construction the prefabricated construction technique and its whole process are concluded.The prefabricated construction technique can secure the building quality and greatly shorten the construction period moreover the on-site pouring concrete process is minimized and the construction environment is improved which contributes direct and indirect economic benefit remarkably.The cold formed steel framed posite slab is covered by the straw board with small heat co...
2013年6月上 施工技术 第42卷第11期 CONSTRUCTION TECHNOLOGY 27 D01:10.7672/sgjs2013110027 钢管负公差和初弯曲对脚手架受压 钢管稳定性影响分析* 张鹏程,曹平周,伍凯 (河海大学土水与交通学院,江苏南京210098) [摘要]脚手架的钢管按国家标准允许存在公差和初弯曲.为了研究负公差和初弯曲对脚手架构件稳定承载力的 影响,采用我国现行规范《钢管脚手架安全技术规范》JGJ130一2011中的计算方法,计算得到负公差会造成构件轴 压承载力下降10.24%~12.59%,负公差和初弯曲共同作用时承载力下降12.17%-15.28%.为了减小负公差和 初弯曲对脚手架立杆承载力的不利影响,建议提高脚手架钢管精度,使得外径负公差限值为0.3mm 壁厚负公差限 值为5%t 初弯曲限值为1%ol [关键词]脚手架;钢管;负公差;初弯曲;稳定性 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2013)11-0027-04 Analysis to the Impact of Negative Tolerances and Out-of-straightness of Steel Pipes on the Stability of Scaffold Zhang Pengcheng Cao Pingzhou Wu Kai College of Civil and Transportation Engineering Hohai University Nanjing Jiangsu 210098 China) Abstract:The steel pipes of scaffold are allowed to have certain tolerances and initial out-of-straightness according to national standards.In order to study the influence of negative tolerances and initial out-of- straightness on the stability of scaffold members this paper uses the method proposed in Technological specification for the safety of steel pipe scaffold JGJ130-2011.The calculation shows that co-existing negative tolerances of out diameter and pipe thickness reduce the axial bearing capacity by 10.24%~ 12.59%.Combination of negative tolerances and initial out-of-straightness reduces the carrying capacity by 12.17%~15.28%.To abate the adverse influence it is suggested that the fabrication accuracy of scaffold pipes should be improved and the tolerances for out diameter tube th...
施工技术 2013年1月上 32 CONSTRUCTION TECHNOLOGY 第42卷第1期 钢管脚手架兼作地下室筏板钢筋支撑架 及循环降温管的施工应用 张静,李文波 (成都建筑工程集团总公司,四川成都610031) [摘要]针对传统地下室筏板大体积混凝土施工的特点,以实际工程为例,阐述了利用钢管脚手架兼做地下室筏板 钢筋支撑架及循环降温管的可行性、需要解决的问题及实施效果等内容,并与常规的施工方法进行了对比.工程 实践表明,使用该方法不仅降低了施工成本,而且能确保施工安全及施工质量. [关键词]钢管脚手架;大体积混凝土;支撑架;降温管;施工技术 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2013)01-0032-03 Application of Steel Pipe Scaffold Used as Support Frame and Cycle Cooling Pipe Zhang Jing Li Wenbo (Chengdu Construction Engineering Group Co. Chengdu Sichuan 610031 China) Abstract:According to characteristics of mass concrete construction in traditional basement raft based on engineering practice this paper expounds the feasibility problems and effect of steel pipe scaffold used as support frame and cycle cooling pipe pares this method with mon methods.Engineering practice shows that this technology can reduce the cost and ensure the safety and quality of construction. Key words:steel pipe scaffolds;mass concrete;support frame;cooling pipe;construction 布鲁明顿广场工程为“第2批全国建筑业绿色分筏板基础尺寸分别为:64.8m×31.2m 64.9m× 施工示范工程”,为在保证质量、安全等要求的前提31.2m 40.3m×37.4m.地下室基础平面布置如图 下,通过科学管理和技术进步,实现节约资源和环1所示. 境保护的目的,对地下室筏板的施工工艺进行研 64900 究,利用钢管脚手架的特点,使其身兼两种功能,既 抗水与 视板分界线 板厚 作筏板钢筋支撑,又作循环降温管,使钢筋支撑架 m 执水板与 民本与 及循环降温管合二为一,本文就该施工方法在上述 整根分界线 工程中的应用情况作如下分析和总结. 柳厚 1工程概况 本工程位于成都市高新区锦辉西一路,建筑面 积为167795.9m2 建筑高度为108.7m.地下3层, 地上部分为2栋24层办公楼、1栋28层住宅楼及 温度后浇带,宽度为800 相应连廊、裙楼,结构形式为全现浇钢筋混凝土框 ■沉降后浇带,宽度为800 架剪力墙结构,地基为密实卵石层和中风化泥岩, 图1地下室基础平面布置 高层部分采用钢筋混凝土筏板基础,地下车库及多 Fig.1 Layout of basement f...
2016年8月下 施工技术 第45卷第16期 CONSTRUCTION TECHNOLOGY 57 D0I:10.7672/8js2016160057 钢管桩托换技术在既有建筑地下室改造中的应用 王海涛,张渊源,安禹蔚,李齐林,张巨振,杨森 (中建一局集团公司承包公司,北京100161) [摘要]某建翼险造施工中,在不拆除原有上部结构前提下,将原有无地下室部位扩建为地下室.地基基础施工期 间,采用钢管对原有验立基础进行支撑并增加新混凝土承台与原独立基础紧密结含浇筑成为一个整体,从替 换原有独立基础承我,达到钢管托换承台的的.总结了本工程钢管托换承台成功的施工经验,对托换承台 在既有建地下室加团改造中施工方法及施工艺进行了较为梨统的介. [关键询]加固;增层;段造;钢管柱;托病承台;基础;监测 [中图分类号]TU746.3[文献标识码]A[文章编号]1002-8498(2016)16-0057-04 Application of Steel Pipe Pile Underpinning Technique in an Existing Building Basement Renovation Wang Haitao Zhang Yuanyuan An Yushi Li Qilin Zhang Juzhen Yang Sen General Contracting Company China Construction First Engineering Division Co.Lid.Beijing 100161 China) Abstract:In the construction of a building renovation the original site without basement needs to be expanded as basement under the premise of no removal of the existing upper structure.During foundation construction steel pipe pile foundation was used to support the existing independent foundation and adding new conerete pile caps were poured into a whole with the original independent foundation closely to replace the original independent foundation bearing which reaches steel pipe pile underpinning the caps.This paper summarized successful experience of the steel pipe pile underpinning caps introduced systematically construction method of underpinning cap used in retrofitting construction of the existing buildings basement. Key words:strengthening;adding layers;retrofitting;steel pipe piles;underpinning cap; found...