This study unfolds an innovative approach aiming to address the critical role of building design in global energy consumption, focusing on optimizing the Window-to-Wall Ratio (WWR), since buildings account for approxi...This study unfolds an innovative approach aiming to address the critical role of building design in global energy consumption, focusing on optimizing the Window-to-Wall Ratio (WWR), since buildings account for approximately 30% of total energy consumed worldwide. The greatest contributors to energy expenditure in buildings are internal artificial lighting and heating and cooling systems. The WWR, determined by the proportion of the building’s glazed area to its wall area, is a significant factor influencing energy efficiency and minimizing energy load. This study introduces the development of a semi-automated computer model designed to offer a real-time, interactive simulation environment, fostering improving communication and engagement between designers and owners. The said model serves to optimize both the WWR and building orientation to align with occupants’ needs and expectations, subsequently reducing annual energy consumption and enhancing the overall building energy performance. The integrated model incorporates Building Information Modeling (BIM), Virtual Reality (VR), and Energy Analysis tools deployed at the conceptual design stage, allowing for the amalgamation of owners’ inputs in the design process and facilitating the creation of more realistic and effective design strategies.展开更多
In a building, the paint coating applied to interior walls conveys their aesthetic character and also performs an important function of protection. It is a construction component which is exposed to agents of deterior...In a building, the paint coating applied to interior walls conveys their aesthetic character and also performs an important function of protection. It is a construction component which is exposed to agents of deterioration related to its use, needing the regular evaluation of its state of repair. The completed model supports the performance of such periodic inspections and the monitoring of interior wall maintenance, using Virtual Reality (VR) technology. Used during an inspection visit, the application allows users to consult a database of irregularities, normally associated with paint coating, classified by the most probable causes and by recommended repair methodologies. In addition, with this model, a chromatic scale related to the degree of deterioration of the coating, defined as a function of the time between the dates of the application of the paint and the scheduled repainting, can be attributed to each element of coating monitored. This use of VR technology allows inspections and the evaluation of the degree of wear and tear of materials to be carried out in a highly direct and intuitive manner. The computer application has a positive contribution to make in the field of construction, using as it does Information Technology (IT) tools which give access to innovative technology with it capacity for interaction and visualization.展开更多
In textile and apparel field,the CAD technology has been developed rapidly.The CAD system with the func-tions of pattern making,marking and grading has be-come substantial equipment for an apparel factory,But this app...In textile and apparel field,the CAD technology has been developed rapidly.The CAD system with the func-tions of pattern making,marking and grading has be-come substantial equipment for an apparel factory,But this apparel CAD system is only one graphic system con-centrating on the two-dimensional paper patterns,the three-dimensional apparel CAD system or virtual reali-ty apparel CAD is still not put into practical use.But it is one of the most interesting studying fields for展开更多
The field of architecture,engineering,and construction(AEC)is continually striving to use resources efficiently and manage complex processes.Now more than ever,there is a strong need for digital transformation in AEC....The field of architecture,engineering,and construction(AEC)is continually striving to use resources efficiently and manage complex processes.Now more than ever,there is a strong need for digital transformation in AEC.The improvement in the accessibility of consumer-based head-mounted displays(HMD)is attracting different entertainment and research fields to immersive virtual reality(VR)applications.Building Information Modeling(BIM)is known as a promising technology in AEC.The full potential of BIM is not yet employed to empower this field,however,and this could be a result of some barriers still to be surmounted by BIM in both technological and management perspectives.One of these barriers is the communication and collaboration between design,construction,operation,and maintenance phases.VR can fill this gap by providing additional capabilities for BIM which either were not available before or were not possible to employ in practical ways.In this paper,we systematically review recent research around the application of VR in BIM and discuss the results using the PRISMA flowchart.We discuss the most commonly used technologies,software,and evaluation methods and the various applications of VR in the reviewed papers.Finally,we extend the discussion by summarizing the potential future work in this area.展开更多
To explore the influence of emergency evacuation signs on passenger behavior during subway fires and improve evacuation efficiency in emergencies,this paper proposes a dynamic emergency evacuation sign system.A simula...To explore the influence of emergency evacuation signs on passenger behavior during subway fires and improve evacuation efficiency in emergencies,this paper proposes a dynamic emergency evacuation sign system.A simulation platform integrating building information modeling(BIM)and virtual reality(VR)technologies was em-ployed to create subway fire evacuation scenarios using both the current and proposed dynamic emergency evacuation signage systems.Through simulation experiments,fine-grained microscopic data on passenger behavior was collected.Seven indicators were selected to assess evacuation efficiency and wayfinding difficulty.The analysis explored the influence of evacuation signs on passenger behavior in both overall and decision-making areas,thereby validating the effectiveness of the new emergency evacuation signage system.The results show that the dynamic evacuation signage system significantly improves overall passenger evacuation efficiency and reduces decision-making errors.It also improves wayfinding efficiency in critical decision areas by reducing the need for direction identification,minimizing stopping times,and lowering the frequency of decision errors.The method for evaluating the effects of emergency evacuation signs on passenger evacuation behavior proposed in this study provides a robust theoretical basis for the design and optimization of emergency-oriented signs.展开更多
In this paper,a synthesized technique is explored through design of a virtual experiment system for main aero-engine based on VR,which attempts to integrate some VR techniques,such as 3D stereo simulation and modeling...In this paper,a synthesized technique is explored through design of a virtual experiment system for main aero-engine based on VR,which attempts to integrate some VR techniques,such as 3D stereo simulation and modeling,3D scene management and human-computer virtual assembly based on data glove and collision detection.The geometry modeling and instantiation technique,virtual hand modeling and data glove interaction technique are discussed chiefly.Finally,taking aim at assembling and dismantling experiment system of a certain aero-engine,interface technology is expounded also.展开更多
以北京市四惠枢纽为研究对象,探索以数据驱动为导向满足乘客需求的枢纽动态导向标识方案评估及优化设计方法。首先,搭建KANO乘客需求模型,通过桌面实验,形成动态导向标识在内容、样式及空间位置上的优化设计方案,与四惠枢纽现有方案形...以北京市四惠枢纽为研究对象,探索以数据驱动为导向满足乘客需求的枢纽动态导向标识方案评估及优化设计方法。首先,搭建KANO乘客需求模型,通过桌面实验,形成动态导向标识在内容、样式及空间位置上的优化设计方案,与四惠枢纽现有方案形成对比。其次,基于寻路理论通过建筑信息建模(building information modeling,BIM)+虚拟现实(virtual reality,VR)仿真技术,实现人与枢纽的信息交互,提取新旧导向标识方案作用下乘客寻路过程的特征参数。最后,通过对寻路实验中主客观指标分析可知,被试在新版动态导向标识方案中寻路时间、犯错误点数及迷茫点数显著降低,且新版动态导向标识方案在内容、样式及空间位置上满意度均优于旧版。结果表明:研究搭建BIM+VR的虚拟仿真平台,形成以数据驱动为导向的枢纽动态导向标识方案综合评估及优化设计方法,为枢纽动态导向标识方案设计及合理应用提供技术与理论支撑。展开更多
随着建筑行业信息化进程的推进,建筑信息模型(Building Information Modeling,BIM)和虚拟现实(Virtual Reality,VR)技术的结合成为提升工程造价管理效率与精度的重要手段。BIM通过三维数字模型精准传递设计、施工、运维等各阶段的信息;V...随着建筑行业信息化进程的推进,建筑信息模型(Building Information Modeling,BIM)和虚拟现实(Virtual Reality,VR)技术的结合成为提升工程造价管理效率与精度的重要手段。BIM通过三维数字模型精准传递设计、施工、运维等各阶段的信息;VR技术能够提供沉浸式的虚拟体验,帮助项目团队更好地理解和优化施工方案。二者的结合不仅促进了建筑项目的可视化、协同化与智能化,还为成本控制、风险管理、设计变更等提供了创新的解决路径。深入分析“BIM+VR”技术在建筑工程造价管理中的具体应用,探讨其带来的优势,以期为建筑工程造价控制的数字化转型提供参考。展开更多
随着建筑行业的转型升级,各类施工风险的发生概率随之攀升。为应对这些挑战,建筑信息模型(Building Information Modeling,BIM)与虚拟现实(Virtual Reality,VR)技术的协同应用备受关注。研究以“VR”和“construction”为关键词,从Web o...随着建筑行业的转型升级,各类施工风险的发生概率随之攀升。为应对这些挑战,建筑信息模型(Building Information Modeling,BIM)与虚拟现实(Virtual Reality,VR)技术的协同应用备受关注。研究以“VR”和“construction”为关键词,从Web of Science核心合集数据库检索了2000—2021年间的期刊论文,运用CiteSpace对文献数据进行了系统梳理与可视化分析。结果表明VR技术与BIM的深度融合推动了工程安全管理的数字化转型;研究重点已从早期的潜在危险识别与预防,逐步转向以“人的因素”为核心的综合性研究。综合来看,BIM与VR技术的融合在施工安全预警、虚拟施工模拟及工程教育等领域具有显著优势。研究为推动数字建造领域的发展提供了理论参考。展开更多
文摘This study unfolds an innovative approach aiming to address the critical role of building design in global energy consumption, focusing on optimizing the Window-to-Wall Ratio (WWR), since buildings account for approximately 30% of total energy consumed worldwide. The greatest contributors to energy expenditure in buildings are internal artificial lighting and heating and cooling systems. The WWR, determined by the proportion of the building’s glazed area to its wall area, is a significant factor influencing energy efficiency and minimizing energy load. This study introduces the development of a semi-automated computer model designed to offer a real-time, interactive simulation environment, fostering improving communication and engagement between designers and owners. The said model serves to optimize both the WWR and building orientation to align with occupants’ needs and expectations, subsequently reducing annual energy consumption and enhancing the overall building energy performance. The integrated model incorporates Building Information Modeling (BIM), Virtual Reality (VR), and Energy Analysis tools deployed at the conceptual design stage, allowing for the amalgamation of owners’ inputs in the design process and facilitating the creation of more realistic and effective design strategies.
文摘In a building, the paint coating applied to interior walls conveys their aesthetic character and also performs an important function of protection. It is a construction component which is exposed to agents of deterioration related to its use, needing the regular evaluation of its state of repair. The completed model supports the performance of such periodic inspections and the monitoring of interior wall maintenance, using Virtual Reality (VR) technology. Used during an inspection visit, the application allows users to consult a database of irregularities, normally associated with paint coating, classified by the most probable causes and by recommended repair methodologies. In addition, with this model, a chromatic scale related to the degree of deterioration of the coating, defined as a function of the time between the dates of the application of the paint and the scheduled repainting, can be attributed to each element of coating monitored. This use of VR technology allows inspections and the evaluation of the degree of wear and tear of materials to be carried out in a highly direct and intuitive manner. The computer application has a positive contribution to make in the field of construction, using as it does Information Technology (IT) tools which give access to innovative technology with it capacity for interaction and visualization.
文摘In textile and apparel field,the CAD technology has been developed rapidly.The CAD system with the func-tions of pattern making,marking and grading has be-come substantial equipment for an apparel factory,But this apparel CAD system is only one graphic system con-centrating on the two-dimensional paper patterns,the three-dimensional apparel CAD system or virtual reali-ty apparel CAD is still not put into practical use.But it is one of the most interesting studying fields for
基金supported byÖsterreichische Forschungsförderungsgesellschaft and TU Graz Open Access Publishing Fund.
文摘The field of architecture,engineering,and construction(AEC)is continually striving to use resources efficiently and manage complex processes.Now more than ever,there is a strong need for digital transformation in AEC.The improvement in the accessibility of consumer-based head-mounted displays(HMD)is attracting different entertainment and research fields to immersive virtual reality(VR)applications.Building Information Modeling(BIM)is known as a promising technology in AEC.The full potential of BIM is not yet employed to empower this field,however,and this could be a result of some barriers still to be surmounted by BIM in both technological and management perspectives.One of these barriers is the communication and collaboration between design,construction,operation,and maintenance phases.VR can fill this gap by providing additional capabilities for BIM which either were not available before or were not possible to employ in practical ways.In this paper,we systematically review recent research around the application of VR in BIM and discuss the results using the PRISMA flowchart.We discuss the most commonly used technologies,software,and evaluation methods and the various applications of VR in the reviewed papers.Finally,we extend the discussion by summarizing the potential future work in this area.
基金Beijing Natural Science Foundation-Fengtai Rail Transit Frontier Research Joint Foundation(No.L211024),the National Natural Science Foundation of China(No.52072012).
文摘To explore the influence of emergency evacuation signs on passenger behavior during subway fires and improve evacuation efficiency in emergencies,this paper proposes a dynamic emergency evacuation sign system.A simulation platform integrating building information modeling(BIM)and virtual reality(VR)technologies was em-ployed to create subway fire evacuation scenarios using both the current and proposed dynamic emergency evacuation signage systems.Through simulation experiments,fine-grained microscopic data on passenger behavior was collected.Seven indicators were selected to assess evacuation efficiency and wayfinding difficulty.The analysis explored the influence of evacuation signs on passenger behavior in both overall and decision-making areas,thereby validating the effectiveness of the new emergency evacuation signage system.The results show that the dynamic evacuation signage system significantly improves overall passenger evacuation efficiency and reduces decision-making errors.It also improves wayfinding efficiency in critical decision areas by reducing the need for direction identification,minimizing stopping times,and lowering the frequency of decision errors.The method for evaluating the effects of emergency evacuation signs on passenger evacuation behavior proposed in this study provides a robust theoretical basis for the design and optimization of emergency-oriented signs.
文摘In this paper,a synthesized technique is explored through design of a virtual experiment system for main aero-engine based on VR,which attempts to integrate some VR techniques,such as 3D stereo simulation and modeling,3D scene management and human-computer virtual assembly based on data glove and collision detection.The geometry modeling and instantiation technique,virtual hand modeling and data glove interaction technique are discussed chiefly.Finally,taking aim at assembling and dismantling experiment system of a certain aero-engine,interface technology is expounded also.
文摘以北京市四惠枢纽为研究对象,探索以数据驱动为导向满足乘客需求的枢纽动态导向标识方案评估及优化设计方法。首先,搭建KANO乘客需求模型,通过桌面实验,形成动态导向标识在内容、样式及空间位置上的优化设计方案,与四惠枢纽现有方案形成对比。其次,基于寻路理论通过建筑信息建模(building information modeling,BIM)+虚拟现实(virtual reality,VR)仿真技术,实现人与枢纽的信息交互,提取新旧导向标识方案作用下乘客寻路过程的特征参数。最后,通过对寻路实验中主客观指标分析可知,被试在新版动态导向标识方案中寻路时间、犯错误点数及迷茫点数显著降低,且新版动态导向标识方案在内容、样式及空间位置上满意度均优于旧版。结果表明:研究搭建BIM+VR的虚拟仿真平台,形成以数据驱动为导向的枢纽动态导向标识方案综合评估及优化设计方法,为枢纽动态导向标识方案设计及合理应用提供技术与理论支撑。
文摘随着建筑行业信息化进程的推进,建筑信息模型(Building Information Modeling,BIM)和虚拟现实(Virtual Reality,VR)技术的结合成为提升工程造价管理效率与精度的重要手段。BIM通过三维数字模型精准传递设计、施工、运维等各阶段的信息;VR技术能够提供沉浸式的虚拟体验,帮助项目团队更好地理解和优化施工方案。二者的结合不仅促进了建筑项目的可视化、协同化与智能化,还为成本控制、风险管理、设计变更等提供了创新的解决路径。深入分析“BIM+VR”技术在建筑工程造价管理中的具体应用,探讨其带来的优势,以期为建筑工程造价控制的数字化转型提供参考。
文摘随着建筑行业的转型升级,各类施工风险的发生概率随之攀升。为应对这些挑战,建筑信息模型(Building Information Modeling,BIM)与虚拟现实(Virtual Reality,VR)技术的协同应用备受关注。研究以“VR”和“construction”为关键词,从Web of Science核心合集数据库检索了2000—2021年间的期刊论文,运用CiteSpace对文献数据进行了系统梳理与可视化分析。结果表明VR技术与BIM的深度融合推动了工程安全管理的数字化转型;研究重点已从早期的潜在危险识别与预防,逐步转向以“人的因素”为核心的综合性研究。综合来看,BIM与VR技术的融合在施工安全预警、虚拟施工模拟及工程教育等领域具有显著优势。研究为推动数字建造领域的发展提供了理论参考。
