In the second of a three-part series, we model a three span interchange ramp bridge. The bridge is located in a transition between a straight portion of the alignment and a curved portion. The deck width tapers to accommodate the geometry of the site and the roadway. The seven W42G girders are uniquely framed in every span..
WSDOT posted PGSuper Version 2.1.1 yesterday. It can be downloaded from www.wsdot.wa.gov\eesc\bridge\software.
New stuff in this release consists mostly of minor bug fixes to 2.1. However, there are two issues that deserve attention:
1) A bug where the effective flange width was computed as twice the correct value for bridges using Deck Bulb Tee's, Double Tee's (plain type), Double Tee's (WSDOT type), and Ribbed Girders. This bug will cause non-conservative designs for these bridge types.
I did my best to fill out the table based on data from product brochures but since I don't own either of the latter programs, details are missing. Any information that you may have to help complete the table will be much appreciated.
A new tutorial: Advanced Geometrics - Part 1
In this first of a three-part series, we explore how to create a multi-span tapered bridge on a horizontally curved alignment.
Check it out at: http://www.pgsuper.com/drupal/TrainingHome
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Learn the steps required to use PGSuper in a production engineering environment. In this narrated tutorial, Richard Pickings provides an introduction to using PGSuper to design a precast I-girder in a real TxDOT bridge. Visit http://www.pgsuper.com/drupal/TrainingHome to view this and our other outstanding PGSuper tutorials.
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(February 23, 2009) BridgeSight Inc. is proud to introduce PGSuper.com, a Support, News, and Training site dedicated to all things PGSuper. This new site provides commercial-quality support and training for the open source PGSuper precast-prestessed concrete bridge girder design program.
