ISSN:1093-9687    

DOI:10.1111/j.1467-8667.1994.tb00356.x

出版商:Blackwell Publishing Ltd    

年代:1994

数据来源: WILEY

摘要:

Abstract:This paper provides summary descriptions of computer‐based technologies that will increasingly affect the execution and efficacy of construction projects. The role these technologies will play is described for each of five project phases: conceptual planning, design and procurement, construction, startup, and operations and maintenance. Implications for the work force brought about by increasing reliance on computer technology are discusse

ISSN:1093-9687    

DOI:10.1111/j.1467-8667.1994.tb00357.x

出版商:Blackwell Publishing Ltd    

年代:1994

数据来源: WILEY

摘要:

Abstract:Future computer‐aided project management (CAPM) software will be greatly improved through the technologies of project modeling—the rich, general‐purpose representation of the project in the computer—and system integration—the sharing of computer models among applications. Our approach is to achieve system integration by establishing standard models that all applications can adopt and share. This requires a standard data model that specifies the general data‐representation approach, a standard domain model that provides a schema or language for representing construction information, and a project model or database for information about a specific project that can be shared among multiple computer applications. This paper reviews these standard models and then describes our prototype integrated system called the object model–based project information system, or OPIS. OPIS uses a shared object–oriented database as the central unifying core of an integrated project planning system that includes an interface to an intelligent CADD program, a plan‐generation expert system, an estimating application, and a scheduling application. OPIS demonstrates the feasibility and power of using standard object‐oriented project models to achieve CAPM

ISSN:1093-9687    

DOI:10.1111/j.1467-8667.1994.tb00358.x

出版商:Blackwell Publishing Ltd    

年代:1994

数据来源: WILEY

摘要:

Abstract:This paper describes a formal, unified methodology for design and management in order to facilitate AEC collaboration. Issues related to the AEC industry pave the way for a description of the collaborative AEC environment and its requirements for supporting information systems. Next, constraint management is described as the core of the unified methodology. A system architecture is briefly presented with an illustrative example. A discussion of integration philosophies and a comparison with parallel research in the area of system integration in the civil engineering domain conclude the paper.

ISSN:1093-9687    

DOI:10.1111/j.1467-8667.1994.tb00359.x

出版商:Blackwell Publishing Ltd    

年代:1994

数据来源: WILEY

摘要:

Abstract:The architecture, engineering, and construction (AEC) industry is extremely fragmented. Professionals from various organizations are involved in different project phases requiring constant transfer of data among participants. Islands of automation exist throughout the project life cycle. However, methods for sharing data across discipline boundaries are still precarious. Improved methods for generating, sharing, and maintaining project data not only reduce fragmentation but also increase competitiveness by bridging gaps between and within project phases.The primary objective of this research is to develop ISICAD (interactive system for integrating CAD and computer‐based construction systems) which captures selected design data and represents these data in an object‐oriented project model during the design stage of AEC projects. In the heirarchy of object‐oriented classes and subclasses, the design data get inherited; hence all functional, geometric, structural, construction, and design evolution data from the different design domains—architectural, engineering, contractual, estimation, management, scheduling, etc.—are shared across class boundaries. This design data can be used as input to various computer‐based construction systems (e.g., knowledge‐based planning system) and to support reasoning about geometric, topologic, spatial, and temporal issues in the project life cycle. Consequently, the decoding of drawings is abolished from the AEC project process. More important, industry integration

ISSN:1093-9687    

DOI:10.1111/j.1467-8667.1994.tb00360.x

出版商:Blackwell Publishing Ltd    

年代:1994

数据来源: WILEY

摘要:

Abstract:Computers are becoming essential tools for integrating design, planning, fabrication, and construction. Computer‐controlled construction equipment is poised to receive information from data generated in the design phase. The robotic execution of construction operations, however, depends on complex models for autonomous and intelligent control. This paper introduces a strategy for the robotic bending of rebar and presents the results of experimental work with an actual testing facility. Mechanical properties and behavior of rebar are examined to develop rules for control. Focus is placed on exploring the dynamics between the bender and steel bars. The concepts of impedance, admittance, and compliance of both the machine and the environment will be discussed in the context of control strategy developmen

ISSN:1093-9687    

DOI:10.1111/j.1467-8667.1994.tb00361.x

出版商:Blackwell Publishing Ltd    

年代:1994

数据来源: WILEY

摘要:

Abstract:Computers are essential in the development of robotic systems for construction. The introduction of such systems creates many challenges to researchers, equipment manufacturers, and users alike. This paper presents a new initiative to study critical issues related to the establishment of a robotic masonry system. In particular, the paper discusses three major problem areas: (1) design automation, (2) automated mortar application, and (3) adaptive control of brick placement. The data presented have been generated using standard PC computers which control and integrate design tools with real‐time machinery and sensory device

ISSN:1093-9687    

DOI:10.1111/j.1467-8667.1994.tb00362.x

出版商:Blackwell Publishing Ltd    

年代:1994

数据来源: WILEY

摘要:

Abstract:A logistics and scheduling microcomputer system for construction robotics implementation has been developed within the framework of the Construction Robotic Equipment Management System (CREMS) at Purdue University. This paper addresses the main procedures and software developed to effectively manage multiple robots in diverse construction sites. The current version of the software is used with HyperCard, QuickBASIC, and Think‐Pascal on an Apple Macintosh microcomputer. This paper presents an example microcomputer application to optimal robot implementation assignment decision support for use with multiple concurrent construction project

ISSN:1093-9687    

DOI:10.1111/j.1467-8667.1994.tb00363.x

出版商:Blackwell Publishing Ltd    

年代:1994

数据来源: WILEY