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Geometric modeling of box girder deck for integrated bridge graphical system

automation IN CONSTRUCTION 2003年第1期12卷 55-66页

作者： Sampaio, AZ Univ Tecn Lisboa Dept Civil Engn Lisbon Portugal

This paper presents a geometric modeling of box girder deck to automate deck design representations. A geometric methodology was developed and implemented in a computer program. This software allows the geometric description of the deck, using bridge design data usually given at the conceptual stage, and the automation of several drawings and three-dimensional (3D) models, defined accurately. Using traditional graphical system, the execution of deck specific drawings is extremely time-consuming, the 3D deck model gives an approximation only of the exterior shape of the deck and the 3D finite elements (FE) mesh generation software imposes geometric simplifications on the real configuration of the deck before discretization. The computer application provides an important toot to the bridge designer, particularly at the conceptual stage, as it allows aesthetic and structural evaluation of the bridge at an early stage in the design. The geometric modeling process and graphical results of a case-study are presented. (C) 2003 Elsevier Science B.V. All rights reserved.

关键词： automation and integration in bridge design geometric modeling

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automation of bridge deck graphical representations based on a shape geometric model

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ADVANCES IN ENGINEERING SOFTWARE 2002年第7-10期33卷 477-485页

作者： Sampaio, AA Univ Tecn Lisboa IST Dept Civil Engn P-1049001 Lisbon Portugal

The construction of a new bridge interferes with the existent environment. A careful aesthetic study must be made at an early stage in the design and the visualisation of a three-dimensional (313) model of the structure is the best way to analyse it. As the bridges deck presents a complex shape it is difficult to execute a 3D deck model as well as the specific drawings or a 3D finite elements mesh of the deck. The modelling scheme proposed here allows the automation of the geometric design phases related to the deck element using as a means of integration a geometric database representative of the real deck shape. This concept was implemented in a computer programme. This application is an important support in a bridge design namely at the conceptual, analytical and final stages. (C) 2002 Civil-Comp Ltd and Elsevier Science Ltd. All rights reserved.

关键词： geometric modelling deck geometric database automation and integration in bridge design bridge graphical support systems

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automation of bridge deck graphical representations based on a shape geometric model

Automation of bridge deck graphical representations based on...

引用

2nd International Conference on Engineering Computational Technology/5th International Conference on Computational Structures Technology

作者： Sampaio, AA Univ Tecn Lisboa IST Dept Civil Engn P-1049001 Lisbon Portugal

关键词： geometric modelling deck geometric database automation and integration in bridge design bridge graphical support systems

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