Nobuyoshi Yabuki

Abstract The renovation projects of buildings and living spaces, which aim to improve the thermal environment, are gaining importance because of energy saving effects and occupants' health considerations. However, the indoor thermal design is not usually performed in a very efficient manner by stakeholders, due to the limitations of a sequential waterfall design process model, and due to the difficulty in comprehending the CFD simulation results for stakeholders. On the other hand, indoor greene

ABSTRACT IAI French Speaking Chapter developed a bridge product model called IFC-BRIDGE based on IFC of IAI and OA-EXPRESS of SETRA in 2002. Around the same, a Japanese research group at Muroran Institute of Technology developed a prestressed concrete bridge product model by expanding IFC in collaboration with Japan Prestressed Concrete Contractors Association. Both of the product models were verified by converting data among CAD systems, design and analysis programs. Both French and Japanese gr

Development and Application of a Product Model for Shield Tunnels Nobuyoshi Yabuki, Takashi Aruga, Hiroshi Furuya Pages 435-447 (2013 Proceedings of the 30th ISARC, Montréal, Canada, ISBN 978-1-62993-294-1, ISSN 2413-5844) Abstract: Building Information Modeling is a prevailing methodology in the building industry and half (by length) of the world's shield tunnels are in Japan. Accordingly, for shield tunnels from 2005 to 2007, we developed a product model called IFC-ShieldTunnel, which is based

A cut and fill earthworks management system was developed based on 4D CAD and earned value method. The system is composed of a schedule management system, 4D CAD system, cost estimation system, and earned value management system (EVMS). LandXML was employed as the product model to represent terrain data, and IFC was used to represent the process model. We applied the system to a past actual earthworks project and demonstrated that it could facilitate enhancing the control and management of cost

Inspectors of buildings including power plants have to carry a bulk of documents and drawings to perform their tasks, otherwise they have to memorize extensive knowledge and data about the structures and facilities. Thus, a light and handy IT solution system for supporting inspectors is desired. In this research, we propose and develop a prototype on-site inspection support system. This system consists of a RFID tag system, a PDA connected to the Internet, a voice input/output system, and a digi

Although about half of the shield tunnel works done in the world exist in Japan, their product model has not been developed and detail construction related data are owned by engineers who worked at the construction sites. Considering the international contribution and business chances, in order to preserve the precious construction data for the future use, we decide to develop a product model for representing shield tunnel construction. As its first step, we investigated the characteristics of s

Abstract Background Recently, the number of heatstroke cases is increasing among construction workers. To prevent heatstroke at construction sites, it is necessary to accurately predict both the thermal environment of construction sites and the physiological condition of workers, which is presently difficult to achieve. Methods We have therefore developed the Construction Workers’ Heatstroke Prevention (CWHP) system specifically for outdoor construction workers. The CWHP system consists of the T

In order to keep track records of periods of actual usage of light temporary facility members such as pipes, scaffolding plates and frames, experiments were executed by using passive Utlra-High Frequency (UHF) band Radio Frequency Identification (RFID) tags. Tags were pasted onto steel pipes, scaffolding plates and frames for investigating the readability in a number of different ways. The thickness of a base for appropriate opening between a tag and a metallic object, the location of tags, and

The authors developed a product model for reinforced concrete (RC) or prestressed concrete (PC) slab bridges on the basis of the Industry Foundation Classes (IFC) in order to enable interoperability of various application systems throughout the lifecycle of structures. Based on the analysis of the characteristics of RC or PC slab bridges, new classes for slabs, prestressing strands, sheaths, voids, rebars, and anchoring devices were defined. A feature of the model is that it clearly represents t