[November 12, 2004]

We added some new links to our free resources.

 

[August 10, 2004]

We completed some general maintenance and house cleaning.  Thanks to all of you that have emailed us to report "dead" links.

 

[May 27, 2004]

We just updated our Unit Conversion program and our Column Section Analyzer (CSA). CSA now supports AASHTO 16th Ed., LRFD, and Caltrans codes.  We added multi-column shear demand calculations and moment magnification.  Check it out in our Free Software section.

 

 

[May 14, 2004]

We added a new MathCAD document for designing wingwalls per Caltrans. We also updated our Steel Reinforced Elastomeric Bearing Design MathCAD sheet.  You can find these documents in our Free Software Area.

 

[February 19, 2004]

We found some informative and free LRFD bridge design examples on the Florida DOT website.  There are two bridge types- cast-in-place flat slab and precast beams.  The examples can be downloaded either in pdf or MathCAD formats.  The MathCAD templates are fantastic.  Check it out in our Free Software By Others Area.

 

[January 3, 2004]

We did some general maintenance.

Happy New Year! 

 

[November 17, 2003]

We've added a new bridge to our Bridge Gallery.  I Street Bridge was built in 1911.

 

[November 1, 2003]

We started another FREE software project.  This time we're working on a Pile Foundation Design Program.  Check it out in our Free Software Area.

 

[September 20, 2003]

Check out our new Column Section Analysis Program.  The program calculates moment - curvature,  and biaxial capacity.  You can find this new program in our Free Software Area. 

 

[August 14, 2003]

We added a new MathCAD document for calculating composite steel girder section properties.  See our Free Software Area.

 

[June 3, 2003]

More MathCAD documents have been added.  Some broken links have been fixed.  We also found a couple of  interesting articles on External Prestressed Bridges authored in Germany.  The articles can be found in Free Resources in the Precast Concrete Area.

 

[May 15, 2003]

We've added lots of new links in Free Resources!

 

[May 2, 2003]

We've add some new MathCAD documents!  One for Caltrans steel reinforced elastomeric bearing design and another for Caltrans shear key design.  See our Free Software Area.

 

[April 15,  2003]

Need to perform a Pushover Analysis?  Check out our link to OpenSees in our Free Software By Others area.

 

[April 2, 2003]

We've added a new bridge to our Bridge Gallery.  Tower Bridge was built in 1935.

 

 

 

[March 14,  2003]

Lots of new Free Resources!

 

[February 24, 2003]

We've added three new Free Resource Sections!  You'll now find webpages dedicated to Bridge Analysis,  Bearings,  and Construction Inspection in our Free Resources. 

 

[February 5, 2003]

There are new links in  Free Resources. 

 

[January 23, 2003]

There are new links in  Free Resources. 

 

[January 3, 2003]

Happy New Year! 

 

We released a new version of our Box Section Properties program (Version 0.9.5.1).  Nothing big just some minor bug fixes.  It can be downloaded from our Free Software webpage.  We've added quite a few new links to Free Resources.

 

[December 22,  2002]

We added a new bridge to our collection!  Donner Pass Bridge was built in 1924.  This is one beautiful structure in one of most picturesque areas in California. Check it out in our Bridge Gallery!

 

[December 14,  2002]

We added a couple of new MathCad documents for doing joint shear calculations per the Caltrans SDC, and also designing steel reinforced elastomeric bearing pads per LRFD.  See Free Software.

 

[December 9, 2002]

There are new links in  Free Resources. 

 

[December 5, 2002]

We added some links in the Seismic Area of  Free Resources.  We've added some links to sites with bridge related earthquake disaster photos, and we also came across an interesting seismic design document called Recommended LRFD Guidelines for the Seismic Design of Highway Bridges, NCHRP 12-49, 2001. 

 

[November 26, 2002]

We added a new bridge to our collection!  No Hands Bridge was built in 1912.  For some history on the bridge go to this website.  You can find our photos here.

[November 25, 2002]

We released some new MathCad documents!  Check them out in our Free Software Area.

[November 16, 2002]

We released a minor upgrade to our Box Section Properties program.  See Free Software for details.

[November 2, 2002]

We found an interesting life-cycle costing software developed by the National Institute of Standards and Technology (NIST) to help bridge engineers assess the cost effectiveness of new, alternative construction materials. The software uses a life-cycle costing methodology based on both ASTM standard E-917 and a cost classification developed at NIST.  You can find the link in our Free Software Area (By Others).

 

[ October 10, 2002 ]

We added some interesting seismic engineering research reports and articles in our Seismic Section of  Free Resources.  Are you interested in how bent caps are designed in high seismic regions?  We added a link to an excellent Alaska DOT article that clearly outlines the procedure.  Ever wonder whether those shear keys you design will hold up to those high design loads?  Well check out the link to the UCSD report titled Seismic Response of Sacrificial Shear Keys in Bridge Abutments.  The report's conclusions will surprise you!

[ September 7, 2002 ]

We have a new Historic Bridge in our Bridge Gallery!  Beldon Town Bridge constructed in 1912.

[ August 27, 2002 ]

We continue to clean up our Free Resource Area.  We've added links to lots of interesting articles and research.  Check it out and tell us what you think.

[ August 5, 2002 ]

We've been doing  quite a bit of house cleaning in our Free Resource Area.

[ July 17, 2002]

We added a link to the Digital Bridges library at Lehigh University in our Miscellaneous Section of the Bridge Gallery.  This website has an INCREDIBLE collection of articles and papers by 19th century American bridge engineers.  Highly recommended even if you're not a history buff!

[ July 8, 2002 ]

Check out our new innovative calculation tool. As a proof of concept we've created a webapp to calculate section properties of a circle.  The tool generates "live" graphics, and presents solved mathematical equations just as you would do it with a pencil on a computation pad.  Speaking of computation pads.  For final output we create a pdf file with our bridge automation calc pad as the background.  Since we're using pdf format  we can make the output look "identical" to our hardcopy calc pad.  You can find this app in our Free Software Area.  To run this app you will need Adobe's SVG Viewer.

 

We added  links to some US Army Corps of Engineers Manuals:

See our Geotechnical section of Free Resources.
 

[ May 18, 2002 ]

New Historic Bridge in our Bridge Gallery!  Bidwell Bar Bridge, Oroville.  The first suspension bridge constructed in California!

Added links to two papers on Integral Abutments in the Steel Section of Free Resources.

[ May 2, 2002]

Link to NCHRP Report 461 - Static and Dynamic Lateral Loading of Pile Groups, 2001 in our Geotech section of Free Resources.

[ April 17, 2002]

For you Caltrans Specifications writers we've created a new webapp to help with this task.  This first release of the program summarizes the ssps and bridge reference specs into an organized table for easy look up.  See Free Software area.

[ April 6,  2002 ]

Link to COM624P a software program for analyzing Laterally Loaded Piles to our Free Software area.

Link to the AISC website that has the availability of structural steel shapes  in the U.S. in Free Resources.

We added a link to a FHWA Publication called Drilled Shafts:Construction Procedures and Design Methods, 1999 in Free Resources.

[Feb 21, 2002]

We added a Geotechnical Section to our Free Resources.  Our first entry to this section is the US Navy Design Manuals (NAVFAC).  

We also added the Caltrans Comparative Bridge Costs (Jan 2001) to our Caltrans Resources.

[Feb. 16, 2002]
New Historic Bridge in our Bridge Gallery!  Sierra Boulevard Overhead, Roseville.
[Feb. 13, 2002]
Added  a link to a website about Strut-Tie-Analysis in our Free Resources.  This website is hosted by the University of Illinois at Urbana Champaign.  
 
[Jan 12, 2002]
We've added a link to NONLIN in our Free Software area.  NONLIN is a Microsoft Windows based application for the dynamic analysis of single degree of freedom structural systems. Very Cool Software!
[December 24, 2001]
We added some more Caltrans Standard Forms to Free Software.
 
 
[December 17, 2001]
Our latest upgrade version 0.9 of "Box Girder Properties" is now available.  Go to Free Software to check it out.

[December 13, 2001]

New Historic Bridge in our Bridge Gallery!  Colfax Foresthill Bridge is our first suspension bridge!
[December 10, 2001]
We added an article by the FHWA titled Seismic Retrofitting Manual For Highway Bridges in Free Resources.  Also we added a link to the Caltrans Bridge Manual in Free Resources.
 
 
[December 8, 2001]
We now have our web applications up and running again!  Give them a try in Free Software.
 
[December 5, 2001]
We've added a new MathCad document in Free Software to calculate dynamic soil pressure using the Mononobe-Okabe method.  
 
[December 1, 2001]
The "whole" darn site is NEW!  We hope you like the new format.  We've moved some things around so if you're having trouble finding a particular item email us at: webmaster@bridgeautomation.com.

September 26, 2001

  • We added a new bridge to the Bridge Gallery.  Marble Lane Bridge in Plumas County built in 1908.

September 4, 2001

  • We added the Caltrans Highway Design Manual to the Caltrans Resource Center.  Look under Civil Design > Online Publications.

August 25, 2001

  • We added a new covered bridge to the Bridge Gallery.  Oregon Creek Covered Bridge in Yuba County built in 1860.

August 10, 2001

  • We added a new bridge to the Bridge Gallery.  Wilbur Spring Road Bridge in Colusa County built in 1910.

August 1, 2001

  • We added a new bridge to the Bridge Gallery.  Table Mountain Bridge in Oroville was built in 1907.

June 30, 2001

  • We added a table of Mechanical Properties of Structural Steel Shape in  Resources.

June 23, 2001

If you do work in California you'll want to try this out.  

June 19, 2001

June 13, 2001

The first entry in our Steel Section is an online AISC Shape database.  We've added W Shapes first.  As time becomes available we'll setup other shapes and additional ways to query the database.  

We used the 8th Edition because the AISC is still in the process of updating their shape database.   When the revised database becomes available we'll update our data.  

May 18, 2001

Don't ask what the line is or what the name of this bridge is because we don't know.  It was interesting looking we had a camera on hand and the rest is history.  

May 4, 2001

  • We added a document called Standard Plans for Timber Highway Structures in our new Timber Section of Resources.

April 30, 2001

 

April 22, 2001

  • We added a new Mathcad document to our Free Software Area.

    The new document calculates rankine earth pressures.

     

  • We added some links to  our Seismic Engineering section in Resources.

April 9, 2001

  • We added two bridges to the Bridge Gallery.

     

    • Rainbow Bridge - City of Folsom

      Historic Concrete Arch.

     

    • Historic Steel Truss Pedestrian Bridge - City of Folsom

Historic Steel Truss with an interesting history.

March 27, 2001

  • We added two bridges to the Bridge Gallery.
    • Coloma Bridge

      Steel truss bridge constructed in 1915.

     

    • Figueroa Bridge - City of Folsom

Reinforced concrete bridge with some interesting architectural features.

March 24, 2001

  • We added a new online utility to Resources.

The utility created by Ashraf M. Ghaly, Ph.D., P.E.; a Professor at Union College in New York, analyzes and designs shallow spread footings.   

March 16,  2001

 
  • We added some links to our Seismic Engineering section in Resources.
 
  • We added a new Prestressed Concrete section to Resources.  

Our first entry to this section is a table with strand properties for low lax, Grade 270 strand.  We included both metric and English.

March 13,  2001

 

The bridge is a concrete arch we found in El Dorado County, CA.  The structure was built in 1914.

  • We added some articles and links to our Seismic Engineering section in Resources.

We found some interesting bridge related articles on the AISC website.   The articles are reprints from Modern Steel Construction.  

March 8,  2001

  • We've added some new links to our new Seismic Engineering Section in Resources.

 

February 20, 2001

  • We've added a Seismic Engineering Section to our Resources.

Lets call it a modest beginning.  We've added some interesting links for your reading pleasure.  

Bridge Automation has big plans for this area so keep checking back. 

 

February 18, 2001

  • We added the following to our Resources pages:

Concrete Mix Design Utility from Union College in New York.

Local Programs Section to the Caltrans Resource Center.

Precast Prestressed Concrete Section Property Tables 

ASSHTO Girders

Bulb Tee

February 8, 2001

The html version loads much faster than the pdf version.

Look under Seismic->Online Publications->Seismic Design Criteria(SDC)-HTML

February 2, 2001

The online utilities using java technologies are now more responsive.  I've been told by our new ISP that uptime is estimated to be 99.9% (yeah, right!).  

January 31, 2001

  1. Cost Index in Estimating
  2. PS&E Guide in Specifications
  3. Navigation links in top frame of page

January 30, 2001

  1. New Construction Section
  2. Construction Manual in Construction Folder
  3. Staking Information in Civil Design Folder

January 29, 2001

  1. XS Sheets
  2. Standard Drawings
  3. Caltrans Borders

 

January 28, 2001

The Caltrans' Website has a wealth of information for bridge engineers.  Caltrans' has done a commendable job in making this information available to the public.  What we have done is organize the information in a way that us bridge engineers can quickly find what we need.    

January 27, 2001

 

January 24, 2001

January 18, 2001

January 15, 2001

January 14, 2001

 
This application calculates development lengths of deformed bars using LRFD code (metric).

January 8, 2001

One document calculates geometric section properties of an arbitrary shape, and other document designs reinforced concrete T beams.

January 2, 2001

December 29, 2000

December 28, 2000

December 24, 2000