ESPADD.BR: Expert System Producing Automated Designs and Drawings for Bridges

by Charles Tung, (M.ASCE), Louis Berger Int Inc, East Orange, United States,
Louis Berger, (F.ASCE), Louis Berger Int Inc, East Orange, United States,



Document Type: Proceeding Paper

Part of: Computing in Civil Engineering

Abstract: This paper presents the logic and methodology used in developing an automated software system for designs and drawings of bridges. Its primary purpose is to design and draw highway bridge plans quickly and efficiently, achieving major savings in time and manpower, and at the same time meeting the complex requirements of different federal and state specifications, in spite of the decreasing supply of experienced bridge designers and draftsmen. The design phase of ESPADD.BR deals with bridge superstructure designs consisting of rolled wide flange beams, built-up steel girders or prestressed concrete sections with composite or non-composite construction and involving either simple or continuous spans, and bridge substructure designs having any combinations of abutments and piers with variable number of circular or rectangular columns supported on soil, rock or piles. The drawing phase employs a simple command language procedure to customize the drafting requirements of many states and several foreign governments.

Subject Headings: Bridge design | Bascule bridges | Highway bridges | Girder bridges | Steel bridges | Highway and road design | Computer aided design

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