Accession Number : ADA313400

Title :   Integrating Object-Oriented CAD and Rule-Based Technologies for Construction Planning.

Descriptive Note : Final rept.,

Corporate Author : CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL

Personal Author(s) : Ganeshan, Rajaram ; Stumpf, Annette ; Chin, Sangyoon ; Liu, Liang ; Harrison, Bill

PDF Url : ADA313400

Report Date : AUG 1996

Pagination or Media Count : 57

Abstract : This report presents a methodology incorporating object-oriented and rule-based concepts to generate a preliminary construction plan for facility designs to: (1) compare alternative designs from a construction time and cost perspective; (2) animate the schedule to verify the schedule and identify constructibility problems before construction begins; (3) provide a good baseline schedule and cost estimate for the evaluation of contractor bids; and (4) determine the impact on schedule and costs due to modifications during the construction management phase. A prototype implemented in a LiSP-based environment includes: (1) object-oriented models of entities relevant to construction planning; (2) knowledge-bases to generate activities, identify construction methods, and sequence activities; (3) interactive capability to control the level of detail in schedule by grouping components based on spatial location by construction zones; (4) interface with MCACES (Micro-Computer Aided Cost Engineering Support system) databases to obtain crew definitions, unit costs and productivity information for common construction activities; (5) interface with Microsoft Project to do Critical Path Method analysis and display and manipulate schedule information; (6) capability to animate any portion of the schedule; and (7) capability to deal with incomplete design information by using construction solutions from previous projects. The prototype system was well received by schedulers and estimators.

Descriptors :   *MILITARY FACILITIES, *COMPUTER AIDED DESIGN, *RULE BASED SYSTEMS, *CONSTRUCTION, *OBJECT ORIENTED PROGRAMMING, DATA BASES, CONTROL, SPATIAL DISTRIBUTION, METHODOLOGY, MANAGEMENT, IMPACT, MODELS, INTERACTIONS, COST ESTIMATES, PROTOTYPES, SEQUENCES, TIME, COSTS, SOLUTIONS(GENERAL), BASE LINES, SCHEDULING, PLANNING, ARMY CORPS OF ENGINEERS, PRODUCTIVITY, CRITICAL PATH METHODS.

Subject Categories : Computer Programming and Software
      Civil Engineering
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE