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浅谈市政建设中钢筋混凝土水池的结构设计与施工
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作者 张云飞 《城市建筑》 2016年第20期226-227,共2页
近年来,随着社会经济的发展与城市化进程的不断加快,人们对市政建设的要求越来越高。对于任何一座城市来说,市政建设都是最基础的建设,市政建设水平直接影响着城市的整体发展水平。只有先保障了市政建设,才能够促进城市的长远发展... 近年来,随着社会经济的发展与城市化进程的不断加快,人们对市政建设的要求越来越高。对于任何一座城市来说,市政建设都是最基础的建设,市政建设水平直接影响着城市的整体发展水平。只有先保障了市政建设,才能够促进城市的长远发展。钢筋混凝土水池工程是市政建设中的常见工程,其结构设计的科学性与施工质量是影响建设水平的重要因素。本文从市政建设中钢筋混凝土水池的结构特点入手,针对设计与施工两方面的关键技术措施进行了分析,详细介绍了相关要点,旨在提高我国市政建设中钢筋混凝土水池的结构设计水平与施工质量。 展开更多
关键词 市政建设 钢筋混凝土 钢筋混凝土水池 结构设 施工
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振荡压实技术在公路工程沥青路面施工工艺分析 被引量:2
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作者 吴新陈 《江西建材》 2013年第2期160-161,共2页
路面平整度是道路使用性能的重要指标,要获得运行期间较好的状态,首先要靠施工阶段平整度的控制,其次要靠运营期间对于平整度衰减速率的控制。文章从碾压对沥青路面平整度的影响入手,重点的论述了沥青路面碾压施工平整度的控制。
关键词 沥青路面 震荡 施工计
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京杭运河宿迁南二环大桥工程总体设计 被引量:4
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作者 张国泉 《中外公路》 2004年第2期41-44,共4页
京杭运河宿迁南二环大桥是一座双塔单索面部分斜拉桥 ,主桥跨径为 66+110+66m。文中主要对该桥的工程概况、主桥结构设计和计算要点、结构施工和抗震。
关键词 京杭运河 宿迁南二环大桥 部分斜拉桥 单箱三室 施工 抗震措施 防撞措施
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全力以赴稳增长 千方百计扩投资
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作者 梁宏贤 《延安市人民政府政报》 2015年第5期1-1,共1页
5月23日下午,市委副书记、市长梁宏贤在第19届西洽会暨丝博会延安代表团驻地,主持召开专题会议,贯彻落实省政府主要领导来延调研讲话精神,研究部署稳增长、扩投资工作。市委常委、副市长马宏玉以及各县区、市直相关部门主要负责人参加... 5月23日下午,市委副书记、市长梁宏贤在第19届西洽会暨丝博会延安代表团驻地,主持召开专题会议,贯彻落实省政府主要领导来延调研讲话精神,研究部署稳增长、扩投资工作。市委常委、副市长马宏玉以及各县区、市直相关部门主要负责人参加会议。梁宏贤指出,长期以来延安形成了油主沉浮的单一结构,经济抗风险的能力不强,目前,我市原油产量趋于稳定,油煤价格低位徘徊,企业投资能力明显下降。 展开更多
关键词 投资工作 原油产量 投资能力 发展先机 法贤 工业增长速度 项目实施单位 项目监管 分解细化 施工计
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湖南省公路膨胀土路基试验研究与处治实践 被引量:1
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作者 刘义虎 杨果林 李中 《公路工程》 2007年第4期5-11,共7页
膨胀土及其工程病害问题有岩土工程界的"癌症"之称。本文系统地研究了公路建设中遇到的膨胀土路基设计与施工等技术问题,通过现场试验路监测、室内大型模拟试验等研究方法,提出了膨胀土路基的设计计算理论,完善了加筋膨胀土... 膨胀土及其工程病害问题有岩土工程界的"癌症"之称。本文系统地研究了公路建设中遇到的膨胀土路基设计与施工等技术问题,通过现场试验路监测、室内大型模拟试验等研究方法,提出了膨胀土路基的设计计算理论,完善了加筋膨胀土路基的设计方法,开发了膨胀土路基经济合理的处治方法,为湖南省膨胀土路基设计和施工技术指南的编写以及相关技术规范的修订提供了科学依据。 展开更多
关键词 膨胀土路基 场试验路监测 内模型试验 筋膨胀土 施工处治技术
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Application of system dynamics for assessment of sustainable performance of construction projects 被引量:10
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作者 SHENL.Y. 吴宇哲 +1 位作者 CHANE.H.W. HAOJ.L. 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2005年第4期339-349,共11页
Sustainable performance is expected to become a major factor when examining the feasibility of a construction project in terms of its life cycle performance. The study on which this paper is based developed a simulati... Sustainable performance is expected to become a major factor when examining the feasibility of a construction project in terms of its life cycle performance. The study on which this paper is based developed a simulation model, using system dy- namics methodology, to assess the sustainable performance of projects. Three major factors are used to examine project sus- tainable performance (PSP): the sustainability of economic development (E), the sustainability of social development (S), and the sustainability of environmental development (En). Sustainable development ability (SDA) was used as a prototype to evaluate the degree of sustainable performance. The simulation software ‘ithink’ was used to help with the application of the model to a real life case. This paper explains and demonstrates the procedures used to develop the model and finally offers an approach for assessing the feasibility of a construction project in terms of its sustainable performance. 展开更多
关键词 Construction project Project life cycle Project sustainable performance (PSP) Sustainable development ability(SDA) System dynamics Simulation
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Real-time and dynamic schedule optimization of construction projects on the basis of lean construction 被引量:1
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作者 祁神军 《Journal of Chongqing University》 CAS 2007年第3期177-186,共10页
Lean construction has been newly applied to construction industry. The best performance of a project can be achieved through the precise definition of construction product, rational work break structure, lean supply c... Lean construction has been newly applied to construction industry. The best performance of a project can be achieved through the precise definition of construction product, rational work break structure, lean supply chain, decrease of resources waste, objective control and so forth. Referring to the characteristics of schedule planning of construction projects and lean construction philosophy, we proposed optimizing methodology of real-time and dynamic schedule of construction projects based on lean construction. The basis of the methodology is process reorganization and lean supply in construction enterprises. The traditional estimating method of the activity duration is fuzzy and random;however, a newly proposed lean forecasting method employs multi-components linear-regression, back-propagation artificial neural networks and learning curve. Taking account of the limited resources and the fixed duration of a project, the optimizing method of the real-time and dynamic schedule adopts the concept of resource driving. To optimize the schedule of a construction project timely and effectively, an intellectualized schedule management system was developed. It can work out the initial schedule, optimize the real-time and dynamic schedule, and display the schedule with the Gant Chart, the net-work graph and the space-time line chart. A case study was also presented to explain the proposed method. 展开更多
关键词 lean construction lean supply lean forecasting schedule planning process reorganization intellectualized schedule management system
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Key Technologies in the Design and Construction of 300 m Ultra-High Arch Dams 被引量:14
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作者 RenkunWang 《Engineering》 SCIE EI 2016年第3期350-359,共10页
Starting with the Ertan arch dam (240 m high, 3300 MW) in 2000, China successfully built a total of seven ultra-high arch dams over 200 m tall by the end of 2014. Among these, the ]inping 1 (305 m), Xiaowan (294... Starting with the Ertan arch dam (240 m high, 3300 MW) in 2000, China successfully built a total of seven ultra-high arch dams over 200 m tall by the end of 2014. Among these, the ]inping 1 (305 m), Xiaowan (294.5m), and Xiluodu (285.5 m) arch dams have reached the 300 m height level (i.e., near or over 300 m), making them the tallest arch dams in the world. The design and construction of these 300 m ultra-high arch dams posed significant challenges, due to high water pressures, high seismic de- sign criteria, and complex geological conditions. The engineering team successfully tackled these chal- lenges and made critical breakthroughs, especially in the area of safety control. In this paper, the author summarizes various key technological aspects involved in the design and construction of 300 m ultra- high arch dams, including the strength and stability of foundation rock, excavation of the dam base and surface treatment, dam shape optimization, safety design guidelines, seismic analysis and design, treatment of a complex foundation, concrete temperature control, and crack prevention. The experience gained from these projects should be valuable for future practitioners. 展开更多
关键词 Ultra-high arch dam Shape optimization Arch dam overall safety Seismic safety Concrete temperature contro
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Design and construction of Sutong Bridge tower 被引量:2
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作者 Luo Chengbin Zhou Jianlin +1 位作者 Tian Wei Dai Jie 《Engineering Sciences》 EI 2009年第1期45-51,共7页
Sutong Bridge tower which is 300.4 m is the highest one in the world.The tower anchor area uses the steel-concrete composite structure,its structure and the stress mechanism are complex,so it must be paid more attenti... Sutong Bridge tower which is 300.4 m is the highest one in the world.The tower anchor area uses the steel-concrete composite structure,its structure and the stress mechanism are complex,so it must be paid more attention to the structure durable issue.The 300 m height makes the tower quite sensitive to the environmental factors such as wind and temperature.The wind resistance safety of tower in construction stage is especially important.In this paper,the design of composite structure is introduced.The key technologies of tower geometry control and wind resistance in construction stage are analyzed. 展开更多
关键词 Sutong Bridge TOWER DESIGN CONSTRUCTION key technology
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Design and construction of Sutong Bridge deep-water main-pylon foundations 被引量:1
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作者 Ren Huixing Ouyang Xiaoyong He Maosheng Nie Qinlong Wang Xiali 《Engineering Sciences》 EI 2009年第1期30-36,共7页
This paper,from three aspects including construction conditions,foundation design and construction,introduces some considerations in the designing of main-pylon foundations and some practical measures to deal with cer... This paper,from three aspects including construction conditions,foundation design and construction,introduces some considerations in the designing of main-pylon foundations and some practical measures to deal with certain unfavorable construction conditions,such as deep water,tidal effect,soft stratum and heavy traffic,during the construction of main-pylon foundations. 展开更多
关键词 Sutong Bridge group-pile foundation DESIGN construction platform steel cofferdam scour protection
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Numerical simulation of flows around long-span flat roof 被引量:1
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作者 孙晓颖 武岳 沈世钊 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第4期370-375,共6页
Long-span roof with span larger than height always has a complicated three-dimensional curve. Wind pressure on the roof is often influenced not only by the atmospheric turbulence, but also by the “signature” turbule... Long-span roof with span larger than height always has a complicated three-dimensional curve. Wind pressure on the roof is often influenced not only by the atmospheric turbulence, but also by the “signature” turbulence provoked in the wind by the structure itself. So it is necessary to study characteristics of flows around the roof. In this paper, three-dimensional numerical simulation of wind-induced pressure has been periormed on a long-span flat roof by means of Computational Fluid Dynamics (CFD) software ——FLUENT. The flow characteristics are studied by considering some parameters, such as wind direction, span-height ratio, roof pitch, flow characteristics, roughness of terrain. The simulation is based upon the Reynolds-averaged equations, in which Reynolds stress equation model (RSM) and SIMPLE technology, (Semi-Implieit Method for Pressure-Linked Equations) have been used. Compared with wind tunnel tests, the computational results have good agreement with the experimental data. It is proved that the results are creditable and the method is feasible. 展开更多
关键词 the “signature” turbulence long-span flat roof CFD Reynolds stress equation model (RSM) SIMPLE technology
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Design and construction of HYSY981 被引量:5
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作者 Xie Bin Lin Yaosheng Su Jing Zeng Hengyi Xie Wenhui Jiang Zhe 《Engineering Sciences》 EI 2011年第4期44-50,共7页
This paper focuses on the independent design and construction of HYSY981. HYSY981,which China National Offshore Oil Corporation(CNOOC) possesses its intellectual property right,is brought forward by advanced research,... This paper focuses on the independent design and construction of HYSY981. HYSY981,which China National Offshore Oil Corporation(CNOOC) possesses its intellectual property right,is brought forward by advanced research,concept design and combined basic design. The key technologies are the researches concerning global design,system integration,platform positioning,global performance analysis,structural strength and fatigue analysis,environment effect assessment of South China Sea,basin test and tunnel test,and construction technology of platform. Core technology of design and construction for the 6th deep water semi-submersible rig is held. Independent detail design and construction are also accomplished. These have improved technology of key equipment for China offshore oil exploitation. 展开更多
关键词 HYSY981 concept design basic design intellectual property rights core technology
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Analysis of a Failed Port Slope and Stabilization
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作者 闫澍旺 舒阳 楚剑 《Transactions of Tianjin University》 EI CAS 2005年第5期381-385,共5页
A nonmetal transportation port with soft soil foundation of Tianjin New Harbor failed during construction in 1997. The soil properties and geological changes before and after landslide were in- vestigated by in situ t... A nonmetal transportation port with soft soil foundation of Tianjin New Harbor failed during construction in 1997. The soil properties and geological changes before and after landslide were in- vestigated by in situ test means. The stability of the slope was estimated with several calculation methods, such as the simplified Bishop method and the non-circle analysis method. According to the investigation and analysis results, the factors that may cause the slope failure can be deter- mined as follows: excessive excavating, violating the normal construction procedure, excessive pore water pressure during earlier piling and sudden water-level fluctuation in front of the slope. Measures to improve the soil foundation for reconstructing the port include strengthening the failed slope with vibro sand piles, filling up the crushed stone layer, dividing the excavation into four steps and driving piles by larger intervals. The port now has been successfully reconstructed and begun operation. 展开更多
关键词 slope failure back analysis STABILIZATION soft clay
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Design, Construction and Ocean Testing of Wave Energy Conversion System with Permanent Magnet Tubular Linear Generator 被引量:2
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作者 陈中显 余海涛 +1 位作者 刘春元 洪立玮 《Transactions of Tianjin University》 EI CAS 2016年第1期72-76,共5页
In this paper, the design, construction and ocean testing of a wave energy conversion system are studied. Based on the motion characteristics of double buoys in ocean waves, a wave energy conversion system with perman... In this paper, the design, construction and ocean testing of a wave energy conversion system are studied. Based on the motion characteristics of double buoys in ocean waves, a wave energy conversion system with permanent magnet tubular linear generator (PMTLG) is proposed to convert ocean wave energy into electricity. The wave energy conversion system was installed in the Yellow Sea near Lianyungang, China. The ocean test re- suits indicate that it had dynamic and static performance, and obtained an expected amount of electricity. The calcu- lation result indicates the average output power was about 1 000 W, and the conversion efficiency from wave en- ergy into electricity was 1.4%. In addition, the wireless data communication, mechanics and oceanography were also discussed. 展开更多
关键词 ocean wave energy BUOY permanent magnet tubular linear generator ELECTRICITY
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Forms and Aesthetics of Bridges 被引量:14
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作者 Man-Chung Tang 《Engineering》 2018年第2期103-112,共10页
The objective of a bridge design is to produce a safe bridge that is elegant and satisfies all functionality requirements, at a cost that is acceptable to the owner. A successful bridge design must be natural, simple,... The objective of a bridge design is to produce a safe bridge that is elegant and satisfies all functionality requirements, at a cost that is acceptable to the owner. A successful bridge design must be natural, simple, original, and harmonious with its surroundings. Aesthetics is not an additional consideration in the design of a bridge, but is rather an integral part of bridge design. Both the structural configuration and the aesthetics of a bridge must be considered together during the conceptual design stage. To achieve such a task, the bridge design engineer must have a good understanding of structural theory and bridge aesthetics. 展开更多
关键词 FORM AESTHETICS BRIDGE Concept Design Environment
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可调半径弧形模板在某工程中的应用 被引量:1
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作者 贾琴梅 《工程建设与设计》 2009年第5期44-47,共4页
利用可调半径弧形模板进行各种弧度的圆形、椭圆形、弧形模板施工,具有混凝土成型质量好、通用性强、可在不同工程中重复使用、综合摊销成本较低等特点,具有较好的应用前景。
关键词 可调半径弧形模板 模板工程 施工
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New Development of Port Structures Design and Construction 被引量:1
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作者 S. Gabi M. Doubrovsky A. Belakrouf 《Journal of Shipping and Ocean Engineering》 2011年第3期150-157,共8页
Some new innovative constructions and technologies for improvement of port structures are worked out and discussed. The aims of innovations are to increase structures' reliability, to decrease cost of construction an... Some new innovative constructions and technologies for improvement of port structures are worked out and discussed. The aims of innovations are to increase structures' reliability, to decrease cost of construction and maintenance, to simplify technology and cost of building. For these purposes either some main bearing elements or structures in whole are modified or improved. In particular different improved waterfront constructions as well as retaining walls and coastal protection (gravity, piled, sheet piling, etc.) for use in various soil conditions are outlined. One of them incorporates trapezoidal blocks forming columns, each block in the column contacts the others either with smaller or larger bases. Another design incorporates blocks that are constructed with holes ran through the centres of gravity of the blocks. Rigid cylinder element running through the holes of several adjacent blocks allows them to be joined forming large size units, The structure consisting of wedge form retaining wall is original but simple to construct, Some new designs based on perfection of sheet-piling walls (sheet piles with curvilinear cross-section having a form of semi-rings) are proposed for different applications. Proposals on modernization of some traditional structures and technologies are discussed. 展开更多
关键词 Port structures sheet-piling walls coastal protection.
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Design and construction of scour protection for deep-water group pile foundation structures of two pylons in the Sutong Bridge project
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作者 He Ping Guan Yijun Zhang Xiongwen Zhang Qun Zhou Jianhua 《Engineering Sciences》 EI 2009年第1期37-44,共8页
Sutong Bridge,as a world-record cable-stayed bridge with its main span exceeding 1 000 m constructed in Yangtze River estuary region in China,is located at a site with complicated hydrologic conditions and poor geotec... Sutong Bridge,as a world-record cable-stayed bridge with its main span exceeding 1 000 m constructed in Yangtze River estuary region in China,is located at a site with complicated hydrologic conditions and poor geotechnical conditions and therefore,scour protection will be a decisive factor for ensuring smooth and successful construction of this bridge.This paper,starting from structural description of deep-water group pile foundation,analyzes impact to the bridge safety introduced by scour and its protection and further presents different solutions of scour protection for foundation structures of this bridge. 展开更多
关键词 Sutong Bridge deep-water group piles scour protection DESIGN CONSTRUCTION
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Research on Construction Process of EPS in the Thermal Insulation Building
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作者 Xiuli Wu Li zhou Yaru Fan 《International Journal of Technology Management》 2015年第6期54-56,共3页
In order to improve the efficiency of EPS integral thermal insulation building design and optimize the construction process of insulation construction, this paper uses experiment parts and simulation form to design th... In order to improve the efficiency of EPS integral thermal insulation building design and optimize the construction process of insulation construction, this paper uses experiment parts and simulation form to design the thermal insulation construction process, and evaluates the effect of heat preservation. Based on the finite element theory this paper designs adding process of insulation material EPS in the thermal insulation layer, and establishes the radiation heat conduction model of EPS material, finally obtains the solid heat conduction equation. Finally this paper uses ANSYS software to do simulation on the strength and temperature of EPS construction, and evaluates the quality of construction works, which provides technical reference for the design of integrated thermal insulation buildings. 展开更多
关键词 EPS material Thermal insulation Construction process Finite element Thermal radiation ANSYS.
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Carbon-emission calculation of electromechanical energy consumption of different structures during the construction phase
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作者 魏秀萍 LAI Ji-yu ZHANG Jin 《Journal of Chongqing University》 CAS 2013年第2期67-74,共8页
Due to the use of mechanical and electrical equipments in different buildings during construction phase, energy consumption produces large amounts of carbon emissions.Based on the energy use of China, we established a... Due to the use of mechanical and electrical equipments in different buildings during construction phase, energy consumption produces large amounts of carbon emissions.Based on the energy use of China, we established a formula that was applicable to carbon-emission calculation, and discussed carbon-emission characteristics of concrete structures and steel construction.Owing to the difference of electrical and mechanical equipment used in construction phase, the results show that under the same conditions, the carbon emission intensity of a concrete structure building is much higher than that of a steel building.At last, we also put forward some emission reduction measures based on the calculation data of different buildings. 展开更多
关键词 electromechanica! energy carbon emissions concrete constructioni stee1 constr~!~ ctioni construction phase .
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