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Vol. 5, No 6, 2013
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2013, 5(6): 1-5,6.
Abstract:
In last ten years, building information modeling (BIM) has been rapid development. However, there are still few technologies and applications to support BIM data storage and sharing during building lifecycle. Therefore, a clouding-computing-based BIM data integration and service technology is proposed by this research. It adopts Hbase (a kind of NoSql database) to store massive BIM data on distributed nodes, which are integrated virtually by a clouding computing platform, so that all participants could get their required BIM data with a uniform interface. As one of its most import modules, a semi-structured BIM database is described in detail in this paper. By combing with attributes of Hbase and IFC model, the database addresses many problems, such as space waste due to sparse of IFC model, and lots of join calculations during information query. It's also more efficient and extensible than existed BIM databases. As a conclusion, this database sets a good foundation for clouding-computing-based BIM data integration and service technology, and is valuable for BIM application.
In last ten years, building information modeling (BIM) has been rapid development. However, there are still few technologies and applications to support BIM data storage and sharing during building lifecycle. Therefore, a clouding-computing-based BIM data integration and service technology is proposed by this research. It adopts Hbase (a kind of NoSql database) to store massive BIM data on distributed nodes, which are integrated virtually by a clouding computing platform, so that all participants could get their required BIM data with a uniform interface. As one of its most import modules, a semi-structured BIM database is described in detail in this paper. By combing with attributes of Hbase and IFC model, the database addresses many problems, such as space waste due to sparse of IFC model, and lots of join calculations during information query. It's also more efficient and extensible than existed BIM databases. As a conclusion, this database sets a good foundation for clouding-computing-based BIM data integration and service technology, and is valuable for BIM application.
2013, 5(6): 7-11, 34.
Abstract:
Engineering Project Management is a course with strong application and synthesis.It is important to increase the teaching reform to employ new teaching idea, and to improve teaching effect to a maximum on the course of Engineering Project Management.By presenting reform over design of course system, arrangement of teaching content, application of teaching method and variety of examination, etc, the reformation of the course on the base of its characteristics and requirement is suggested in this paper, BIM visual simulation method has been used in the course, and combined with the students' employment potential in the future.Through the way of strengthening student's practice ability is as important as that of basic knowledge and basic theory learning.
Engineering Project Management is a course with strong application and synthesis.It is important to increase the teaching reform to employ new teaching idea, and to improve teaching effect to a maximum on the course of Engineering Project Management.By presenting reform over design of course system, arrangement of teaching content, application of teaching method and variety of examination, etc, the reformation of the course on the base of its characteristics and requirement is suggested in this paper, BIM visual simulation method has been used in the course, and combined with the students' employment potential in the future.Through the way of strengthening student's practice ability is as important as that of basic knowledge and basic theory learning.
2013, 5(6): 12-16, 38.
Abstract:
This paper introduces the engineering example of the first issue of Wuhan no.4 metro line of Wuchang railway station ~ Meiyuan district station which shield tunnel crossed the Wuchang railway station.By arranging observation points in the earths surface and sleeper on the settlement in the lines, the construction process can be monitored.The subway shield tunnel construction influence on surface deformation lines can be discussed, and the corresponding protective measures can be put forward which are caused by the shield tunnel crossing railway station and possible risk factors.In this paper, the project tracked and monitored on surface subsidence line and sleeper.With the monitoring data analysis and timely adjustment of shield tunneling construction parameters, to maintain the stability of the excavation face shield and prolapsed shield tail pipe, and take measures of synchronous grouting, secondary grouting to fill voids shield tail construction and other measures in time to ensure the safety of the projects and railway traffic.Monitoring results showed that shield tunnel construction scheme is reasonable and reliable.By the analysis of the monitoring data, some of the recommendations of the similar construction can be offered.
This paper introduces the engineering example of the first issue of Wuhan no.4 metro line of Wuchang railway station ~ Meiyuan district station which shield tunnel crossed the Wuchang railway station.By arranging observation points in the earths surface and sleeper on the settlement in the lines, the construction process can be monitored.The subway shield tunnel construction influence on surface deformation lines can be discussed, and the corresponding protective measures can be put forward which are caused by the shield tunnel crossing railway station and possible risk factors.In this paper, the project tracked and monitored on surface subsidence line and sleeper.With the monitoring data analysis and timely adjustment of shield tunneling construction parameters, to maintain the stability of the excavation face shield and prolapsed shield tail pipe, and take measures of synchronous grouting, secondary grouting to fill voids shield tail construction and other measures in time to ensure the safety of the projects and railway traffic.Monitoring results showed that shield tunnel construction scheme is reasonable and reliable.By the analysis of the monitoring data, some of the recommendations of the similar construction can be offered.
2013, 5(6): 17-21.
Abstract:
BIM based bridge lifecycle management is information model delivered from planning to design, construction and maintenance. BIM technology will become trend of the future bridge construction and management. However, there is no solution for the whole lifecycle quick and accurate modeling, process management, realtime calculation and simulation, and depend on requirement to dynamic show the construction equipment behavior etc. integrated in one platform. This article is based on a theory of integrated PLM method in one simulation platform, which is an initial approach of bridge PLM, meanwhile compared other possible technical routine for PLM. The platform integrates collaborative design, construction management, construction analysis, construction animation, construction Gantt chart, and maintenance and so on.
BIM based bridge lifecycle management is information model delivered from planning to design, construction and maintenance. BIM technology will become trend of the future bridge construction and management. However, there is no solution for the whole lifecycle quick and accurate modeling, process management, realtime calculation and simulation, and depend on requirement to dynamic show the construction equipment behavior etc. integrated in one platform. This article is based on a theory of integrated PLM method in one simulation platform, which is an initial approach of bridge PLM, meanwhile compared other possible technical routine for PLM. The platform integrates collaborative design, construction management, construction analysis, construction animation, construction Gantt chart, and maintenance and so on.
2013, 5(6): 22-28.
Abstract:
It's very impressive that Crystal Island in Moscow and Re-Insurance Building in London because of their excellent architectural style.The geometrical modeling of these two buildings are investigated by the method of differential geometry and differential equation, which is known as two-differential in brief.The inclined straight line in Euclidean space is oriental and short-range.Similar to this orientation, loxodromic line in two-dimensional curved space is intrinsic oriental.After the differential equation of loxodromic line in revolution surface is derived from this definition, the restriction equations of those in inferior-arc revolution surface and in pseudo-sphere can obtain.Then its easy to get the coordination of all discrete points according to the corresponding analytical or numerical solutions.The three dimension geometry is modeled by the steps of connecting adjacent points, rotating array and mirror.It can be referred to modeling other similar buildings.
It's very impressive that Crystal Island in Moscow and Re-Insurance Building in London because of their excellent architectural style.The geometrical modeling of these two buildings are investigated by the method of differential geometry and differential equation, which is known as two-differential in brief.The inclined straight line in Euclidean space is oriental and short-range.Similar to this orientation, loxodromic line in two-dimensional curved space is intrinsic oriental.After the differential equation of loxodromic line in revolution surface is derived from this definition, the restriction equations of those in inferior-arc revolution surface and in pseudo-sphere can obtain.Then its easy to get the coordination of all discrete points according to the corresponding analytical or numerical solutions.The three dimension geometry is modeled by the steps of connecting adjacent points, rotating array and mirror.It can be referred to modeling other similar buildings.
2013, 5(6): 29-34.
Abstract:
The necessity of developing the envelop design software is discussed firstly in this paper. To develop the software, key technologies and problems are pointed out. After the software developed, we use it to solve several types of problems. By doing these, we come to the conclusion that the efficient envelop soft which waremeets our requirements in the function, and the result is correct.
The necessity of developing the envelop design software is discussed firstly in this paper. To develop the software, key technologies and problems are pointed out. After the software developed, we use it to solve several types of problems. By doing these, we come to the conclusion that the efficient envelop soft which waremeets our requirements in the function, and the result is correct.
2013, 5(6): 35-38.
Abstract:
In complex urban environments, excavation of the subway entrance is the important and tough part in subway construction. On the basis of the construction practice in the bored section of Zhongshan Park Station Entrance one, this paper systematically analyzed the effects taken by exceeding support with large pipe-shelf and method of shallow stratum to ground surface and the surroundings, tracked and monitored the process of excavation with large pipe-shelf for the subway entrance. Analyzing the monitoring data to adjust and improve the construction technology, therefore keeping the stability of structure and ground deformation in the process of excavation. It could avoid the excessive settlement or even collapse of ground and vault. The results of monitoring shows that formulating a reasonable construction scheme, using information construction method of dynamic construction can effectively control the effects to ground, and also will give a good example and reference to other similar construction projects.
In complex urban environments, excavation of the subway entrance is the important and tough part in subway construction. On the basis of the construction practice in the bored section of Zhongshan Park Station Entrance one, this paper systematically analyzed the effects taken by exceeding support with large pipe-shelf and method of shallow stratum to ground surface and the surroundings, tracked and monitored the process of excavation with large pipe-shelf for the subway entrance. Analyzing the monitoring data to adjust and improve the construction technology, therefore keeping the stability of structure and ground deformation in the process of excavation. It could avoid the excessive settlement or even collapse of ground and vault. The results of monitoring shows that formulating a reasonable construction scheme, using information construction method of dynamic construction can effectively control the effects to ground, and also will give a good example and reference to other similar construction projects.
2013, 5(6): 39-42,47.
Abstract:
In this paper, we respectively established the polyhedral and hexahedral volume mesh models, and used CFD method to calculate the aerodynamic characteristics of a wind turbine airfoil under the S-A and SST k-ω turbulence model.The calculated result was compared with wind tunnel test data.It was discovered that the calculation results under SST k-ω turbulence model were more close to the wind tunnel test than S-A turbulence model.And the results showed that choosing better quality hexahedral mesh could get more accurate simulated result than polyhedral mesh.Wind tunnel test or CFD method could reasonably be applied to the aerodynamic characteristics calculation for a real wind turbine airfoil.
In this paper, we respectively established the polyhedral and hexahedral volume mesh models, and used CFD method to calculate the aerodynamic characteristics of a wind turbine airfoil under the S-A and SST k-ω turbulence model.The calculated result was compared with wind tunnel test data.It was discovered that the calculation results under SST k-ω turbulence model were more close to the wind tunnel test than S-A turbulence model.And the results showed that choosing better quality hexahedral mesh could get more accurate simulated result than polyhedral mesh.Wind tunnel test or CFD method could reasonably be applied to the aerodynamic characteristics calculation for a real wind turbine airfoil.
2013, 5(6): 43-47.
Abstract:
Realization high efficiency method of collaborative design research under the environment of BIM building can improve the efficiency and quality of architectural design. It can avoid the information inconsistency and conflict between different professional and different design view which often appear in the two-dimensional design environment of building. Using REVIT and Navisworks software research on a collaborative technology under the BIM design environment which include architecture.The BIM execution plan book binding, structure and mechanical and other professional in, taking Shenyang Construction University Sino German energy-saving demonstration project as an example. Through taking the standard format RVT file of the Revit model into the NavisWorks software for collision detection, to realize the collaborative design in BIM environment majors. Compared with the two dimensional cooperative design mode, collaborative design in BIM environment enhances information transmission and sharing, realize the different profession and the upstream and downstream of enterprises can work in the same mode. It can reduce or even avoid the design change and engineering rework what because of the design and construction personnel lack of synergy in work. All this can achieve high efficiency and high quality of architectural design, effectively reduce the construction cost.
Realization high efficiency method of collaborative design research under the environment of BIM building can improve the efficiency and quality of architectural design. It can avoid the information inconsistency and conflict between different professional and different design view which often appear in the two-dimensional design environment of building. Using REVIT and Navisworks software research on a collaborative technology under the BIM design environment which include architecture.The BIM execution plan book binding, structure and mechanical and other professional in, taking Shenyang Construction University Sino German energy-saving demonstration project as an example. Through taking the standard format RVT file of the Revit model into the NavisWorks software for collision detection, to realize the collaborative design in BIM environment majors. Compared with the two dimensional cooperative design mode, collaborative design in BIM environment enhances information transmission and sharing, realize the different profession and the upstream and downstream of enterprises can work in the same mode. It can reduce or even avoid the design change and engineering rework what because of the design and construction personnel lack of synergy in work. All this can achieve high efficiency and high quality of architectural design, effectively reduce the construction cost.
2013, 5(6): 50-55,63.
Abstract:
Based on the introduction to information management of international projects, this paper discusses applications and development of information management on the international engineering projects, especially, the advanced management technology-BIM(Building Information Modeling).Then, using some international engineering project as a case, the paper analyzes and summarizes the application process of BIM and other information management technology. And finally, some suggestions about the future trend of BIM development are put forward.
Based on the introduction to information management of international projects, this paper discusses applications and development of information management on the international engineering projects, especially, the advanced management technology-BIM(Building Information Modeling).Then, using some international engineering project as a case, the paper analyzes and summarizes the application process of BIM and other information management technology. And finally, some suggestions about the future trend of BIM development are put forward.
2013, 5(6): 56-63.
Abstract:
This paper system introduced PKCG which based on the new national "Standard for daylighting design of buildings" (GB50033-2013), the development of design principle of PKPM software PKCG natural lighting design and development method, and briefly introduces its function and characteristics of such as flexible way of parameter settings, daylighting optimization measures, the simulation results provide daylighting simulation optimization proposal and automatically generate reports, etc.
This paper system introduced PKCG which based on the new national "Standard for daylighting design of buildings" (GB50033-2013), the development of design principle of PKPM software PKCG natural lighting design and development method, and briefly introduces its function and characteristics of such as flexible way of parameter settings, daylighting optimization measures, the simulation results provide daylighting simulation optimization proposal and automatically generate reports, etc.
2013, 5(6): 64-66,72.
Abstract:
In this paper, Grid Method, which is usually used in finite element mesh generation, is now applied for rapid modeling of arbitrary polygon Grid Structure, and it's function is realized in SPASCAD (the software of space modeling)by the developing of program. The engineer only selects the beginning edges of polygons and determines orientation of Grid.The software can automatic forming the model of plate space frame.The basic element of plate space frame includes Square pyramid and Triangular pyramid. The software can greatly improve the engineer's efficiency, This work just is preliminary research for the Rapid modeling of irregular grids, structures, and more development is needed to be continue.
In this paper, Grid Method, which is usually used in finite element mesh generation, is now applied for rapid modeling of arbitrary polygon Grid Structure, and it's function is realized in SPASCAD (the software of space modeling)by the developing of program. The engineer only selects the beginning edges of polygons and determines orientation of Grid.The software can automatic forming the model of plate space frame.The basic element of plate space frame includes Square pyramid and Triangular pyramid. The software can greatly improve the engineer's efficiency, This work just is preliminary research for the Rapid modeling of irregular grids, structures, and more development is needed to be continue.
2013, 5(6): 67-72.
Abstract:
Based on the inspection data and the relevant information of the old commercial buildings, the authors built a fire risk assessment system with the fuzzy grey comprehensive evaluation and the AHP which are the newest Information Processing Techniques. The software which runs in Visual Basic 6.0 according to the system were developed. This software could evaluate the fire risk indoor and determine the levels of fire risk of the commercial buildings. It not only overcomes the disadvantage of complex computing and long time for the manual calculation, but also provides a basis for how to transform the old commercial buildings. At last, the paper took of the evaluation of the fire risk of a old commercial building as an example to confirm the operability of the software.
Based on the inspection data and the relevant information of the old commercial buildings, the authors built a fire risk assessment system with the fuzzy grey comprehensive evaluation and the AHP which are the newest Information Processing Techniques. The software which runs in Visual Basic 6.0 according to the system were developed. This software could evaluate the fire risk indoor and determine the levels of fire risk of the commercial buildings. It not only overcomes the disadvantage of complex computing and long time for the manual calculation, but also provides a basis for how to transform the old commercial buildings. At last, the paper took of the evaluation of the fire risk of a old commercial building as an example to confirm the operability of the software.
2013, 5(6): 73-80.
Abstract:
This paper describes the BIM application in construction in Yunnan Science and Technology Museum project. BIM application reduced rework in construction and improved the efficiency and resource utilization. It also used to verify construction techniques and processes and optimize the construction program. Finally, self-developed 4D, 5D construction management platform was developed for the project schedule and cost control.
This paper describes the BIM application in construction in Yunnan Science and Technology Museum project. BIM application reduced rework in construction and improved the efficiency and resource utilization. It also used to verify construction techniques and processes and optimize the construction program. Finally, self-developed 4D, 5D construction management platform was developed for the project schedule and cost control.
2013, 5(6): 81-88.
Abstract:
BIM is an important technology to achieve full life cycle of green building, while decoration project is an indispensable part of achieving a full life cycle of green building.Therefore, it is significant to investigate the process of BIM application in decoration engineering. This paper first presents the researches on BIM application in the decoration engineering and the current practice. Then it analyzes features of the whole design and construction processes of traditional decoration engineering and application software. Based on the features of BIM technology application, the paper proposes the entire process workflow for BIM application in decoration engineering. It also makes a summary on the obstacles Revit-based BIM technology features, initially proposed decoration works in today's BIM technology application of the basic processes and summarizes the current project implementation process in the decorative application obstacles, to explore its application in decorative works seamlessly ideas, look to the future direction of development.
BIM is an important technology to achieve full life cycle of green building, while decoration project is an indispensable part of achieving a full life cycle of green building.Therefore, it is significant to investigate the process of BIM application in decoration engineering. This paper first presents the researches on BIM application in the decoration engineering and the current practice. Then it analyzes features of the whole design and construction processes of traditional decoration engineering and application software. Based on the features of BIM technology application, the paper proposes the entire process workflow for BIM application in decoration engineering. It also makes a summary on the obstacles Revit-based BIM technology features, initially proposed decoration works in today's BIM technology application of the basic processes and summarizes the current project implementation process in the decorative application obstacles, to explore its application in decorative works seamlessly ideas, look to the future direction of development.
2013, 5(6): 89-94, 100.
Abstract:
This paper mainly summarizes research about BIM application in some developed countries such as US, UK, Germany, Korea and so on.The BIM theory, BIM integration with new technology and application cross-disciplines are presented in detail as the key content, which is hoped to help in facilitating BIM development in our country.
This paper mainly summarizes research about BIM application in some developed countries such as US, UK, Germany, Korea and so on.The BIM theory, BIM integration with new technology and application cross-disciplines are presented in detail as the key content, which is hoped to help in facilitating BIM development in our country.
2013, 5(6): 95-100.
Abstract:
As an important part of building industry transformation upgrade, BIM technology was used widely in large complicated project.The subway station project is characterized by huge quantity, complex pipeline systems, and difficult equipment installation.This paper introduces the concrete application in three phases like design phase, construction phase and maintenance phase.BIM technology was introduced into the project all-around, which help build the subway station all professional model to realize the professional 3D visualization and make organic connection of each professional flat vertical profile control drawing information is established.Collisions inspection among different professions, the virtual simulation and 4D virtual construction technologies will improve the working efficiency and save the project cost.BIM technology in the application of subway station project can help promote BIM technology to widely use in complicated engineering project and play a reference.
As an important part of building industry transformation upgrade, BIM technology was used widely in large complicated project.The subway station project is characterized by huge quantity, complex pipeline systems, and difficult equipment installation.This paper introduces the concrete application in three phases like design phase, construction phase and maintenance phase.BIM technology was introduced into the project all-around, which help build the subway station all professional model to realize the professional 3D visualization and make organic connection of each professional flat vertical profile control drawing information is established.Collisions inspection among different professions, the virtual simulation and 4D virtual construction technologies will improve the working efficiency and save the project cost.BIM technology in the application of subway station project can help promote BIM technology to widely use in complicated engineering project and play a reference.
2013, 5(6): 101-106.
Abstract:
BIM technology is in the rapid development today, it has brought another new technological changes to the architectural design after hand-painted to two-dimensional CAD.BIM technology throughout from design to construction site and from information collected to the project management, similarly bring a new revolution to the traditional professional equipment designed.Software as a tool for technology inevitably have a major impact on the realization of the design outcomes.This paper depends on AECO sim Building Designer as a modeling tool.Through building a three-dimensional model and functional applications such as collision detection.It shows the applications value of BIM technology software in the construction equipment design.
BIM technology is in the rapid development today, it has brought another new technological changes to the architectural design after hand-painted to two-dimensional CAD.BIM technology throughout from design to construction site and from information collected to the project management, similarly bring a new revolution to the traditional professional equipment designed.Software as a tool for technology inevitably have a major impact on the realization of the design outcomes.This paper depends on AECO sim Building Designer as a modeling tool.Through building a three-dimensional model and functional applications such as collision detection.It shows the applications value of BIM technology software in the construction equipment design.
2013, 5(6): 107-110, 114.
Abstract:
In the pipeline diversion of municipal roads and roads'turnover, application of BIM technology with breaking the traditional becomes more and more common. The project of cross-river tunnel in west Chang Jiang road, Shanghai city has used BIM technology successfully. The project uses software AUTODESK REVIT and AUTODESK NAVISWORKS on BIM for model's creation, simulation of construction process and demonstration of construction plan. It rules out the risk previously, improves the efficiency of project coordination, and achieves very significant benefits.
In the pipeline diversion of municipal roads and roads'turnover, application of BIM technology with breaking the traditional becomes more and more common. The project of cross-river tunnel in west Chang Jiang road, Shanghai city has used BIM technology successfully. The project uses software AUTODESK REVIT and AUTODESK NAVISWORKS on BIM for model's creation, simulation of construction process and demonstration of construction plan. It rules out the risk previously, improves the efficiency of project coordination, and achieves very significant benefits.
2013, 5(6): 111-114.
Abstract:
BIM bases on the same model. BIM also guarantees the uniformity when users modify the model. To meet these demands, PAAD, a construction drawing software bases on the AutoCAD platform apply ARX reactors were developed, which increase users' efficiency.
BIM bases on the same model. BIM also guarantees the uniformity when users modify the model. To meet these demands, PAAD, a construction drawing software bases on the AutoCAD platform apply ARX reactors were developed, which increase users' efficiency.
2013, 5(6): 115-118.
Abstract:
According to the present situation of the project of nickel and cobalt Design Institute and construction units, the traditional design method can not meet the need of practical problems. Application of BIM technology to create virtual building model contains all the information architecture, through the application of virtual reality, computer simulation technology for computer simulation and analysis of the actual construction process, based on the VC, contractor can realize beforehand controlling and dynamic management for construction, and optimize the construction organization and risk controlling.
According to the present situation of the project of nickel and cobalt Design Institute and construction units, the traditional design method can not meet the need of practical problems. Application of BIM technology to create virtual building model contains all the information architecture, through the application of virtual reality, computer simulation technology for computer simulation and analysis of the actual construction process, based on the VC, contractor can realize beforehand controlling and dynamic management for construction, and optimize the construction organization and risk controlling.
