2010年2月 施工技术 第39卷第2期 CONSTRUCTION TECHNOLOGY 67 格宾网挡墙在某堤防工程中的应用 范光华，贾刚2，张进3 (1.四川省水利电力工程局，四川都江堰611830； 2.重庆市弘禹水利咨询有限公司，重庆401147； 3.中国煤炭经济技术合作总公司西南路桥，重庆401046) [滴要]重庆市巴南区长江防洪护岸综合整治二期工程（外河坪段）采用格宾网挡墙进行滨江路堤防支护.格宾网 挡墙具有适应性强、透水能力强、结构整体性强、施工方便易组合、耐久性好、造价低等特点.针对格宾网挡墙施工 难点，介绍格宾网挡墙制作技术、施工工艺流程以及施工过程中组装控制质量管理.并对格宾网挡墙的面板出现 受压鼓出等特殊情况处理进行了探导.结果表明，工程质量满足设计、规范要求. [关键词]格宾网挡墙；堤防；施工技术 [中围分类号]U416.1 [文献标识码]A[文章编号]1002-8498(2010)02-0067-03 Application of Gabion Retaining Wall in Some Dike Fan Guanghua' Jia Gang? Zhang Jin' (1.Water Conservaney and Hydroelectricity Engineering Bureau of Sichuan Province Dujiangyan Sichuan 611830 China; 2.Chongging Hongyu Water Resources Consulting Co. Lid.Chongging 401147 China; 3.Coal Economic and Technical Cooperation Corporation Southwest Road and Bridge in China Chongging 401046 China) Abstract:Gabion retaining wall is taken to support dike of Binjiang Road in No.2 engineering with Waiheping section of Yangzi River floodwater and revetment in Chongqing.There are characteristics in Gabion retaining wall including good adaptability high permeability good structural integrity convenient construction good durability and low cost.Based on construction difficulties of Gabion retaining wall fabrication construction flow and control quality management are introduced during the process of construction.Besides special accidents of Gabion retaining wall are outlined such as the panel is pressed to bloat.The results show that engineering quality can meet demands of desig...
施工技术 2016年2月上 82 CONSTRUCTION TECHNOLOGY 第45卷第3期 D0I:10.7672/8gjs2016030082 柔性防水施工在钢楼承板组合轻质屋面工程中的应用* 郑光升，杨凯，王志凌，井谢谢 (内蒙古兴泰建设集团有限公司，内蒙古鄂尔多斯017010) [摘要]将常用于重型屋面的柔性卷材防水与轻质屋面基层结合，既保证了屋面的防水效果又减小了屋面自重. 利用机械固定及热风焊接技术固定柔性卷材与轻质屋面基层，保证了卷材与基层连接的牢固性和接缝处的防水 性，解决了常规轻质屋面采用刚性防水在屋面造型处及突出物处的漏水问题以及因为混凝土屋面自重较大难以实 现大跨度场馆结构要求的问题. [关键词]防水工程；屋面工程；柔性防水；大跨度结构；轻型钢屋架；钢楼承板 [中图分类号]TU761.1*1 [文献标识码]A [文章编号]1002-8498(2016)03-0082-03 Construction Technology of Flexible Waterproof in Composite Light-weight Roof of a Large-span Steel Building Zheng Guangsheng Yang Kai Wang Zhiling Jing Xiexie Inner Mongolia Xingtai Construction Group Co.Ld.Erdos Inner Mongolia 017010 China) Abstract:Combining the flexible waterproofing material with the light-weigh roof the waterproof effect is insured and the weight of the roof is reduced.Mechanical fastening and hot air welding technology are used to fix flexible waterproof material and light-weight roofing ensuring the stability and superior waterproof performance.The use of rigid waterproof roof and prominent in the water leakage problem as well as the use of flexible waterproof layer for concrete roof weight is solved to meet the requirements of large-span structures. Key words:waterproofing;roofs;flexible waterproof;large-span structures;light-weight roof truss; steel floors 1工程概况 板上铺设无纺布隔离层；最后铺设聚酯纤维内增强 本工程为乌兰察布市体育馆，位于乌兰察布 型PVC防水卷材，卷材用自攻螺钉及套筒固定在钢 市集宁新区，占地约10000m2 看台座位3300个， 楼承板上，然后将钉孔处利用卷材搭接接头覆盖， 可容纳4个标准羽毛球比赛场地或1个标准篮球 卷材的搭接采用热风焊接方式，焊缝强度、保证年 比赛场地.本馆为全封闭式，屋顶高14m 屋盖为 限与母材的性...
[关键词]桥梁工程；钢梁；顶推技术；背撑结构；模拟分析 【中图分类号】U445.462【文献标识码】A[文章编号】1002-8498(2014)07-0110-04 ResearchonLarge-spanIncrementalLaunchingTechnology ofFlexibleSteelGirder Ma Zhonggang，Xie Xiaofei,Lei Xialin (General Construction Company of CCTEB，Wuhan,Hubei 430070，China) Abstract;The main bridge of the Sixth Hanjiang River bridge in Wuhan is a self-anchored suspension bridge with a steel and concrete bination girder which using incremental launching method. The largest span of incremental launching is 90 meters. Considering the girder structure and incremental launching device characterisics,which optimizing temporary measures and adding back support structure to reduce the deflection of guiding beam in maximum incremental launching span.Adjusting the temporary support elevation beam assembly line and ensure none measures to guiding beam. Engineering practice shows that it can meet the requirement of the design. Key words:bridges; steel girder; incremental launching technology;back support structure; simulations 顶推法是指在桥台的后方设置施工场地，将梁武汉江汉六桥是武汉市首座自锚式悬索桥，跨、 体在桥头施工场地逐段浇筑或拼装，用千斤顶纵向径布置为110m+252m+110m=452m，两侧增设 顶推，使梁体借助滑道或滑块，逐段或整段向前顶48m+57m压重跨，主桥钢梁总重达7000t。
2014年12月上 施工技术 第43卷第23期 CONSTRUCTION TECHNOLOGY 47 D01:10.7672/8gjs2014230047 柔性支架设计方法与应用研究* 孙九春12 (1.同济大学土木工程学院，上海200092；2.腾达建设集团股份有限公司，上海200122) [摘要]支架作为一种重要的临时支撑结构，形式日趋多样，但是相关的研究、规范主要针对满布式钢管支架，而对 于梁式支架尚缺乏相应的设计与计算方法.为此首先提出基于支架力学特点的分类方法，创建了柔性支架设计荷 载的分类与组合方法.在此基础上，基于现浇结构与柔性支架的受力特点，提出复合受力结构的概念，建立了基于 刚性支撑的柔性支架计算方法.结果表明，该方法较传统方法更科学合理，结构本身的安全度受到应有重视. [关键词]桥梁工程；支撑；复合结构；现浇混凝土 [中图分类号]U445;TU311.4 [文献标识码]A [文章编号]1002-8498(2014)23-0047-08 Study on Design Method and Application of Flexible Supports Sun Jiuchun'.2 (1.College of Civil Engineering Tongji University Shanghai 200092 China: 2.Tengda Construction Group Co.Lad. Shanghai 200122 China) Abstract:As an important temporary support structure support system has different forms.However relevant researches and standards are mainly focused on full space steel tube supports.Appropriate design and calculation methods for beam-type supports are rarely reported.To solve this problem this paper firstly puts forward a classification method based on the mechanical characters of supports then classification and bination method of design load of flexible supports is established.On this basis based on the mechanical characters of cast-in-situ structure and flexible supports the concept of bined-force structure is proposed.And the calculation method of flexible supports based on rigid support is established.The results show that the proposed method is more rational than traditional method.The safety of structures gets enough attention it d...
施工技术 2010年6月 72 CONSTRUCTION TECHNOLOGY 第39卷第6期 某高大模板钢管支撑体系设计与施工管理 何礼生，邓斌 (武警水电第二总队五支队，江苏常州213031) [摘要]南马海立电器有限公司新建铁芯车间果用大跨度单层结构厂房，属于超高、超跨度的大型混凝土结构工 程.参照相关设计和施工规范，提出高支架搭设方法.同时，对基础、立杆、水平杆等构件进行构造处理，对支撑钢 管、扣件和立杆进行稳定计算.通过采取施工各阶段的技术安全管理措施，保证了施工安全，提前完成施工任务. [关键词]混凝土工程；高大模板；设计；施工管理 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2010)06-0072-03 Design and Construction Management of Supporting System in Some Tall Steel-tube Formwork He Lisheng Deng Bin (No.5 Detachment No.2 Hydropower Force of Armed Police Changshou Jiangsu 213031 China) Abstract:The large-span single-layer factory is adopted to new-built steel core workshop in Nanchang Haili Electric Co.Ltd.which belongs to super-tall and super-span concrete structure.Based on the corresponding design and construction codes the installation method about tall formworks is put forward. Furthermore the structure of foundation vertical bar horizontal bar and so on are designed.The stability calculation of supporting steel-tube fasteners and vertical bar is carried out.The construction safety is ensured by selecting technological safe measures at different stages in construction.The construction is pleted in advance. Key words:concrete engineering;tall formwork design;construction management 当前，建筑施工中模板支撑体系出现失稳、坍塌等 事故，并经常导致群体性伤亡事故.如何提高模板支 撑体系特别是高大模板支撑体系的安全可靠性，是建 筑行业杜绝安全事故发生的一个重要课题. 1工程概况 南吕海立电器有限公司新建厂房铁芯车间为大跨 度单层结构厂房，屋面标高为15.0~16.44m 总高为 ×8-18 540 17.2m 平面尺寸为114m×96m(见图1)，跨度为24m 0 梁底标高为12.4m 梁截面尺寸：主梁高1200mm 宽为 图1结构平面示意（单位：m) 400mm 次梁250mm 宽为4...
[关键词]公路工程；路基；高填方路基；盲沟；施工技术 [中图分类号]U416.16 【文献标识码】A [文章编号］1002-8498(2013)23-0049-04 WideningConstructionTechnologyofSomeHighFillSubgrade Cui Changhong'，Liu Wusong²，Tian Shikuan² （1.Civiland Environmental Engineering School，Universty ofScience andTechnology Beijing，Beijing100083，China； 2.TheFourthEngineering Co.，Ld.ofCCCCFirsHighway Engineeing Co.，Ld.，Nanning,Guangxi530031,China) Abstract;The connection of new and old expressway network causes widening of new and old subgrade， treatment problemof widening strip,in particular,inmountainous heavyhilly area of southwest China, widening strip of more new and old subgrade is located in high fill subgrade section. The authors introduce construction method of new and old high fill subgrade,including stability calculation of high slope,problem analysis in construction，construction scheme for widening section of high fill subgrade， which ensure engineering quality in the binding site of new and old high fill subgrade. Key words:road construction;subgrade;high fill subgrade;blind drain;construction 1工程概况 渝泸高速斑竹林互通 路基B匝道路基 斑竹林枢纽互通立交位于重庆市三环高速公 路永川双石一江津塘河段终点，为半定向T形枢纽 YLK45+814.780 互通，B，C匝道上跨渝泸高速公路。
BK1+110.000° 3 由于B匝道下道出口段路基设计路线位于原 渝泸高速公路高填方路基边坡上，故需对B匝道 70.790 （BK0+813.500-BK1+451.016段）与渝泸 图1新、老路基加宽设计断面 （YLK45+650.000-YLK45+900.000段）原高填方 Fig.1 Design section for new and old 路基作加宽处理（见图1)。
施工技术 2014年11月上 10 CONSTRUCTION TECHNOLOGY 第43卷第21期 D0I:10.7672/5j52014210010 某风洞消声室结构施工关键技术 李博平，张笈玮，杨辉 (中国人民解放军63926部队，北京100192) [摘要]针对某风洞消声室结构施工中，结构剪力墙较高，墙体垂直度要求高及结构施工前室内大型设备已安装， 无法从地面搭设满堂脚手架作为梁板模板支撑等施工难题，提出了高大剪力墙施工精度控制技术和现浇梁板无地 面支撑可测可控支撑体系施工技术，通过该技术顺利解决了施工难题. [关键词]风洞：混凝土；支撑：剪力墙；精度：施工技术 [中图分类号]TU745.4 [文献标识码]A [文章编号]1002-8498(2014)21-0010-03 Structural Construction Technology of Muffler Room of a Wind Tunnel Li Boping Zhang Jiwei Yang Hui The 63926 Troop of Chinese People's Liberation Army Beijing 100192 China) Abstract:During the construction of the muffler room of a wind tunnel the standard of the squareness for the high shear walls is strict.Full scaffold framing can't be applied to support the mould boards for the beams and plates because of the large-seale equipment installed before the construction.Based on above problems the technologies of the accuracy controlling for the high shear walls and the determinable and controllable framing for the mould boards for the beams and plates were proposed.And the problems are solved. Key words:wind tunnels;concrete;supports;shear walls;accuracy;construction 1工程概况 消声室是某风洞工程的重要组成部分，结构形 式为地上单层钢筋混凝土剪力墙结构（见图1a) 平 面尺寸为30.3m×12.3m 层高23.3m 由于室内无 隔墙，单面剪力墙长30.3m、高23.3m 要求垂直度 偏差≤10mm 剪力墙施工精度控制难度较大.此 外，由于安装工艺的要求，在消声室结构施工前，室 内设备已安装就位（见图1b) 设备直径8.5m 长 a消声室结构施工现场 26.8m 中心标高5.800m 占用了消声室结构内的 场地空间，设备两侧距离剪力墙不足2m(见图1c) 无法从地面搭设满堂脚手架，现浇钢筋混凝土屋面 梁板施工成为难点. 针对以上施工难题，研究提出了大尺寸混凝土 剪力墙施工精度综合控制技术和现浇混凝土梁板 无地面支撑可测可控模板支撑体系. b结构施工前室内 2现浇梁板无地面支撑模板支撑体系 c消声室内部示意 设备...
2011年6月上 施工技术 第40卷第342期 CONSTRUCTION TECHNOLOGY 75 某预应力空心板梁模板改进工艺 刘仁衫 (汕头港港口工程质量监督站，广东汕头515041) [摘要]预应力空心板梁桥由于受力明确，构造简单，易于标准化预制生产及施工，是国内桥梁应用最为广泛的桥 型之一.针对桥梁预应力空心板梁的施工难点，对芯模、侧模板固定、端头模板、预埋钢板、板底三角工艺进行了 改进，拓展了芯模的固定和组合技术，改进了侧模板和端头模板的固定方法，改变了预埋钢板、板底三角的施工 思路.结果表明：改进工艺可以减少材料损耗，节约材料成本，大幅提高构件的外观质量. 【关键词]空心板梁：工艺改进：芯模：端头模板：预埋钢板；三角 [中图分类号]TU755.2 [文献标识码]A[文章编号]1002-8498(2011)11-0075-03 Technical Improvement of Prestressed Hollow Slab Beam Formwork Liu Renshan Shantou Port Engineering Quality Supersision Station Shantou Guangdong 515041.China) Abstract:Because of clear stress and simple structure of prestressed hollow slab beam bridge it is easy for standard prefabricated production and construction and it is one of the most widely used bridges in domestic.According to the construction difficulties of prestressed hollow slab beam the technologies of core formwork side formwork fixing ending formwork embedded steel plate and bottom triangle wedge are improved.The fixing and bination technology of core formwork is expanded the fixing methods for side formwork and ending formwork are advanced as well as that the construction idea for embedded steel plate and bottom triangle wedge is changed.The results show that the advanced technologies can reduce material consumption save material cost and improve appearance quality of the ponent. Key words:hollow slab beam;technology improvement;core formwork;ending formwork;embedded steel plate;triangle wedge 1工程概况 390 870 60250 温州市城区防洪堤三期二阶段工程为Ⅱ级堤防 ...
施工技术 2012年8月下 92 CONSTRUCTION TECHNOLOGY 第41卷第371期 某预应力工程施工技术难点与对策 付奕 (上海城市管理职业技术学院，上海200231) [摘要]以浦东空港物流仓储作业区预应力工程为例，阐述了预应力工程在实际施工中遇到的施工难点和实际的 技术处理方法，重点介绍了预应力筋的分段布置、预应力筋张拉端的设置、张拉端临时辅助孔的留设、与其他工序 的搭接与配合等.实践表明，该施工工艺在工程质量、施工进度或工程成本方面，均取得了良好的效果. [关键词]混凝土；预应力；张拉端设置；施工方案 [中图分类号]TU757.3 [文献标识码]A[文章编号]1002-8498(2012)16-0092-03 Technical Difficulties and Countermeasures of Construction of Prestressed Concrete in Some Project : Fu Yi (Shanghai Technical College of Urban M&nagement Shanghai200231 China) Abstract:Based on the prestressed concrete construction of Pudong Airport Logistics warehouse project construction difficulties encountered in the actual construction and effective technical measures for prestressed concrete are illustrated.Several aspects are introduced in detail including the segmented layout of the prestressing tendons the tension set of side the tension side temporary auxiliary holes leaving in the lap and cooperation with other processes.The result shows that the construction process has a good effect on construction quality control period and cost control. Key words:concrete;prestressing;tension side arrangemenl;construction;scheme 1工程概况 ① 133600 125000 浦东空港物流仓储作业区仓储建设项目建筑 A区 B区 面积为14万m2 高23.65m 为钢筋混凝土框架结 构.楼层为3层，由仓储区和行车区组成.楼层标 后浇带 6 周浇带 00 高分别为：仓储区6.95 13.95m 行车区5.65， 12.65m 屋面为钢结构.分A B C和盘道区4个部 分（见图1）.仓库区主要柱网尺寸为11m×11m 行 变形缝 车区主要柱网尺寸为16m×11m. C区 2预应力设计 盘道区 00999 预应力筋采用1860级钢绞线（即《预应力混凝 土用钢绞线》GB/T5224一2003中高强低松弛钢绞 图1工程平面 线)，框架梁采用有黏结预应力技术，井字次梁采用 Fig.1 Project plan...
[关键词]混凝土结构；装配式建筑；设计；施工技术；优势 [中图分类号]TU741[文献标识码】A[文章编号]1002-8498（2017）05-0141-03 Design and ConstructionTechnology of aPrefabricatedDwellingHouse Yang Cheng (ScholofArehictureandCiilEngineringNingboPolyechnicInsttue，NingboZhejang315100，Chna） Abstract:In current, Ministry of Housing and Urban-rural Development PRC actively promotes the development of building industralization， and the prefabricated building is an important performance of building industrialization. This paper introduces the design and construction of a prefabricated public rental housing， and expounds the key design technology of the variable chamber type building.At last, this paper concludes the advantages of the prefabricated building. Key words;concrete structures;precast; design;construction;advantage 0引言 建筑工业化的总体目标是提高劳动生产率，改 变落后生产方式，大大提高标准化、工厂化、机械化 和信息化水平，在技术和管理方面创新改革，达到 提高工程质量、加快施工速度、降低工程成本的目 的。
2011年3月下 施工技术 第40卷第337期 CONSTRUCTION TECHNOLOGY 49 某门式刚架库房预应力加固设计与施工 刘桐，刘友忠2，罗斌3 (1.盘城工学院土木工程学院，江苏盐城224051；2.江苏国丰建设集团有限公司，江苏盐城224000； 3.东南大学土木工程学院，江苏南京210096) [摘要]从解决门式刚架主体强度或刚度不足的问题出发，结合某汽车库房实际工程，采用在门式刚架梁下弦加设 预应力拉索的方法进行加固优化设计.通过加固前后对原门式刚架结构性能的影响分析研究表明，果用预应力拉 素的方法进行加固安全可靠.同时介绍了该预应力拉索加固的节点设计与施工技术. [关键词]门式刚架；预应力拉索；结构性能；加固 [中图分类号]TU746.3 [文献标识码】A[文章埔号]1002-8498(2011)06-0049-03 Design and Construction of Prestressed Reinforcement of a Portal Frame Storehouse Liu Tong' Liu Youzhong Luo Bin' (1.Civil Engineering College of Yancheng Institute of Technology.Yancheng Jiangsu 224051 China; 2.Jiangsu Guofeng Construction Group Co.Lad.Yancheng Jiangsu 224000 China; 3.Cisil Engineering College of Southeast University Nanjing Jiangsu 210096 China) Abstract:Combining with the actual automobile storehouse authors proposed an optimized reinforcement method of adding prestressed cable under the bottom chords of portal frame girder to solve the deficient of strength and stiffness of portal frame.Comparison of the structural performance before and after the reinforcement shows that the reinforcement method is safe and reliable.Moreover the node design and construction technology of the prestressed cable reinforcement are introduced. Key words:portal frame;prestressed cable;structural performance;reinforcement 1工程概况 12000 盐城市某二期汽车库房采用门式刚架结构体 系，库房内无起重机，屋面荷载较大（吊挂荷载大）. 21.000 H(800-950)×400×10×14 该库房长度78m 跨度24m 柱距6m 抗风柱柱距 H(1100-800)×400×10×14 5m 檐口柱高21m.刚架梁为变截面设计，实际采 用断面形式为：柱H1000×450×10×18;梁均分4 H1...
施工技术 2016年11月上 82 CONSTRUCTION TECHNOLOGY 第45卷第21期 D0I:10.7672/5gjs2016210082 某钢结构网架屋盖提升装置分析* 陈明，贺天翔 (内蒙古科技大学钢结构与空间结构研究所，内蒙古包头014010) [摘要]大型网架屋盖结构的安装提升受到多种因素的限制.需要进行提升过程的仿真分析.根据某实际网架屋 盖工程的情况，制定了“楼面拼装、累积提升、高空拼装”的施工方法.结合现场施工条件，为25个提升点设计了提 升架和提升平台等提升装置，针对不同的提升装置，给出了相应的吊点构造.利用有限元软件，对提升装置、吊点 构造进行了受力性能分析.结果表明：提升装置的应力比和位移结果都满足设计要求，风荷载对提升架的影响要 远大于提升平台，应该避免强风提升；吊具和临时吊杆的构造也满足受力要求，临时吊杆的设计还能避免提升中的 杆件碰撞. [关键词]钢结构；网架；提升；拼装；有限元分析 [中图分类号]TU392.5 [文献标识码]A [文章编号]1002-8498(2016)21-0082-03 Analysis on Hanging Device of the Steel Truss Roof Chen Ming He Tianxiang Institute of Steel and Spatial Structure Inner Mongolia University of Science and Technology Baotou Inner Mongolia 014010 China) Abstract:The hanging installation of large space truss roof structure is limited by a variety of factors. Simulation analysis of the hanging process is needed to be carried out.According to the engineering condition of a real roof truss the construction method of‘floor assembly cumulative lift and high altitude installation'was established.Combined with the construction site twenty-five lifting points were designed with lifting devices such as lifting frame and lifting platform.According to different lifting devices the corresponding lifting devices were given.By using finite element software the mechanical performance of the lifting devices and lifting points were analyzed.Results show that the lifting devices of the stress ratio and displacement results meet the design requirements.The effect of wind load on ...
施工技术 2012年5月上 32 CONSTRUCTION TECHNOLOGY 第41卷第364期 某钢结构巨型插入式柱脚施工技术 蒋礼，冯长胜，薛飞飞，胡小勇2，徐聪，周鹏1 (1.中建钢构有限公可，广东深圳518040；2.武汉铁路局，湖北武汉430071) [摘要]厦门海峡交流中心二期工程1号楼巨型插入式钢柱脚伸人混凝土底板内2m 并下设8根0.6m长的锚栓， 施工分螺栓预埋和柱脚安装两步，且与底板混凝土两次浇筑穿插施工，混凝土浇筑对柱脚安装精度影响最大，现场 制作限位板与错栓成组整体预埋并与底板钢筋刚接形成稳固结构削弱影响，还采取钢筋点焊加固及导链和钢筋拉 杆组合加固措施以削弱混凝土施工的不利影响，有效保证了埋入式巨型钢柱脚的安装精度. [关键词]钢结构；柱脚；错栓；安装；精度 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2012)09-0032-03 Construction Technology of Giant Embed Steel Column Foot Jiang Li' Feng Changsheng' Xue Feifei' Hu Xiaoyong? Xu Cong' Zhou Peng' (1.China Construction Steel Strueture Co.Lad.Shenzhen Guangdong 518040 China: 2.Wuhan Railway Station Wuhan Hubei 430071.China) Abstract:The giant embedded steel column foot of Xiamen Strait Exchange Center No.I Building sticks 2m in the concrete base and there are eight 0.6m-length anchors on the bottom of the steel column foot. There are two steps for the installation of steel column foot the first step is to embed the eight anchors the second step is to install the steel column foot.After each step the concrete pouring follows which made the greatest influence on installation accuracy.Before installation on-site made location-limited board is bined with the eight anchors into an anchor group to be pre-embedded.The anchor group is fixed with steel bars in the board by spot-welding to a solid structure to weaken the influence.Some reinforcement measures are taken to reduce adverse effect of concrete pouring such as leading chain and steel pull-ro...
[关键词】屋盖；钢结构；提升；一体化建模；数值模拟 [中图分类号】TU311[文献标识码]A[文章编号]1002-8498（2014)14-0001-05 Numerical Simulation and Analysis of the Whole Lifting TechnologyforaSteelRoofStructure GuoYanlin，Zhao Siyuan,Zhang Bohao （Department of Civil Engineering，TsinghuaUnitersity，Beijing100084，China） Abstract;Currently whole lifting technology has been used widely in the construction of huge steel roof structures. This paper is concerned with the numerical simulation and analysis of the whole lifting model has been used herein.An iterative calculation is established to find out the cable force and elevation of lifing points at any lifting configuration state.Besides，the effects of removing cable-force process on adjacent cable forces and support reaction forces have been studied.It is shown from this study that the full process simulation analysis by using the integrated structural model can be used to predict the deformation and cable force of steel roof structures exactly，and the results obtained will be helpful for similar project application. Key words:roofs; steel structures;lifting;integrated model;simulation 0引言虽然整体提升技术已在实际工程中逐渐得到 目前大跨度钢结构屋盖的应用日益增多，传统推广使用，但针对该技术的数值分析方法尚不完 的搭建脚手架、分块吊装的施工方案会因为费用善。
[关键词]加固；改造；托梁拔柱；监测 [中图分类号】TU391 [文献标识码]A [文章编号]1002-8498（2013）16-0016-03 DesignandWhole ConstructionProcessMonitoring ofa Steel-timber Composite Structure forRemoving Columns Li Mi,Jiang Hao,Zheng Hao （Shanghai Key Laboratory of New Technology for Engineering Structures，SRIBS，Shanghai 200032,China) Abstract:An old building with cast iron column and steel beams in the first and second floor, timber structure andwooden gridsfrom the third floor tofifthflooris designed by hinged joint detailsofbeams and columns.Themethod of integral pouring rigid joint is adopted to remove four columns in the first floor withwhole construction processmonitoring，which shows that the strain and deflectionof the new supporting beam is low and the inclination anduneven setlement of the steelcolumnsremainsalmostno changes before and after the construction of supporting beam and removing column，and it is reasonable and feasible for the design and construction monitoring. Key wordsstrengthening；reconstruction； supporting beam and removing column；monitoring 托梁拔柱是增大空间的常用改造方法，广泛适西方向单向布置的钢梁，3～5层为木结构，各层楼 用于工业和民用建筑，托梁拔柱需要考虑荷载传递面均为南北向布置的木格栅，且各层梁柱均为铰接 路线的转移、托梁支撑设计、周边柱及地基基础的 连接，底层层高为5.28m，因后期装修使用功能的改 加固设计以及施工阶段的承载力和稳定验算等。
[关键词]地下工程；桩基础；软土；水泥土搅拌桩 [中图分类号】TU753.1 [文献标识码]A [文章编号]1002-8498（2013)22-0119-03 AccidentAnalysisofaGravityCementMixingPileWall Liu Haixin (Shanghai Geotechnical Investigations &Design Institute Co.，Lid.，Shanghai 200070，China) Abstract;Cement mixing pile retaining wall is suitable for processing mud， silt soil， silt and cohesive soil, which has higher moisture content and the bearing capacity of the foundation is less than 120 kPa, et al. This containment excavation doesn’t need support digging,it can retain soil and stopped water. So, in recent years it has been used more and more in soft soil region,which can be used together with slope unloading soil.However,the quality of piles can not be controlled in soft soils，and the cement soil intensity grows slowin silt soil, the deformation is always large in practical application，and soil collapse and other phenomenon ofen occur. This paper takes an excavation accident in Suzhou as an example, and the analysis of the collapse accident are proposed. Key words:underground; piles; soft soil;cement-soil mixing pile 1工程概况 表1基坑各土层物理力学参数 某工程位于苏州市西南，拟建建筑为5栋11层 Table 1Physical and mechanical parameters of 住宅，整体下设地下1层地下车库，主楼工程桩采用 foundation excavation 预制PHC管桩，基坑开挖深4.7m，基坑周长约 土层名称 平均厚 重度/ 内摩擦角 黏聚力 度/m (kNm) p/（∞) c/kPa 570m，开挖面积约19000m²。
[关键词]地铁车站；深基坑；河道；隔水幢幕；高压旋喷桩；施工技术 [中图分类号]TU753[文献标识码】A[文章编号］1002-8498(2014)01-0067-04 Water-resistance Technology of SomeDeepFoundation ExcavationNear theRiver Li Jiatao,Hu Changming，Zhang Wencui,Zhao Nan,Mei Yuan (School of Civil Engineering，Xi'an Univesity of Architecture and Technology,Xi'an，Shaanxi710055,China) Abstract;The key of the deep foundation excavation construction near the river is the water-resistance treatment.Combined with a project in coastal areas, authors put forward the layout form and construction
analyzing the data of field test, it can be concluded that the effect of two water stop processes is obvious. The water-resistance curtain can on the one hand maintain the stability of the soil, on the other hand improve the construction quality of diaphragm wall near the river..They can enhance the bearing capacity of foundation better and ensure the security and stability in the process of deep foundation excavation construction. Key words:subway stations; deep foundation excavation; rivers; water-resistance curtain;high pressure jet grouting pile; construction
沿海地区地下水丰富且埋深浅，基坑支护工程坑，方法二不适用于河道和基坑距离较小的深基坑 往往因地下水问题而带来一定的施工难度。
【关键词】隧道工程；深基坑：管线保护；施工技术 [中图分类号】U455.45 [文献标识码]A [文章编号】1002-8498（2014)13-0089-05 Protective ConstructionTechnologyforImportantPipelines inDeep FoundationExcavationEngineeringofRiverbedTunnel Ding Haichao'，Yang Jun'，Wang Chengshan²，Luo Hanbin' (1.School of Civil Engineerng &Mechanics，Huazhong Unitersity of Science &Technology，Wuhan，Hubei430074,China; 2.China Railway Tunnel Stock Co.，Ld.，Zhengzhou,He'nan 450000,China) Abstract;Many existing pipeline may be encountered in cut-and-cover city tunnel constructions, temporary relocation method is usually adopted for foundation excavation construction.However, in a river-crossing tunnel project,the large open-cut excavation engineering encounteredalarge main power supply line，whichisalmost impossible toberelocated.In order to protect the city power supply pipeline and ensure the smooth construction of foundation excavation engineering，this paper introduces in detail the overall protection principle and method，and in situ conservation construction technical measures and matters of attention during the construction.The successful engineering practice indicates that the in-situ- protection foundation excavation technology is safe，economic and feasible. Key words:tunnels;deep foundation excavation;pipeline protection;construction 0引言 点非协调等参单元方法，研究了地下连续墙基坑开 加快，为城市道路交通设施建设的发展带来了良好了沉降传递系数的概念，根据地表沉降估算地下管 的机遇，也提出了更高的要求。
2011年3月下 施工技术 第40卷第337期 CONSTRUCTION TECHNOLOCY 103 某轻轨车站屋面网架破坏原因分析 常好诵，郭晔，杨建平 (中冶建筑研究总院有限公司，北京100088) [摘要]通过现场检查、计算分析、破坏试验对东北地区某轻轨车站屋面网架的破坏原因进行了鉴定分析.通过现 场检查对网架构件尺寸、节点连接等结构构造进行鉴定分析：通过对设计、日常、破坏3种荷载作用工况的结构计 算对网架杆件和节点承载力进行校核；通过破坏试验对结构计算分析进行结果验证.分析结果表明：网架存在设 计和施工方面的缺陷，在设计荷载作用下结构可靠度不足，虽然在日常荷载作用下结构尚可正常工作，但过大的冰 雪荷载作用会导致屋面网架的破坏. [关键词]轻轨车站：屋面网架：破坏原因 [中图分类号]TU746.1 [文献标识码]A[文章编号]1002-8498(2011)06-0103-04 Damage Causes Analysis of Grid Frame Roof of a Light Rail Station Chang Haosong Guo Ye Yang Jianping Central Research Institute of Building and Construction of MCC Bejing 100088 China) Abstract:Damage causes of grid frame roof of a light rail station is synthetically analyzed by site inspection structural calculation and experiment.Dimension and joint of member bars are inspected by site inspection.Bearing capacity of member bars and joints are checked by structural calculation respectively under design mon and damage load conditions.Structural calculation result is testified by destructive experiment.Damage mechanism analysis indicates that as both designed and constructed defects exist in grid frame roof insufficient reliability under designed load is the substantial cause. However overloaded caused by snow load is the directly results in damage of grid frame roof. Key words:light rail station;grid frame roof;damage cause 1工程概况 屋盖出现局部严重下挠（见图1b).本文通过现场 东北地区某轻轨车站建成于2006年.车站屋检查、计算分析和试验3部分工作对屋面网架的破 盖采用单向受力网架，由14福截面为倒三角形的空坏原因进行鉴定分析. 间桁架组成，每福空间桁架又由两福简支平面桁架2结构现场检查 组成，平面桁架采用单斜式腹杆体系.平面桁架跨2...
