News

July 2011

More than 15 years after the development of the first version of the FORTRAN RC arch rating program, Dr. Lai has converted the program into a MATHCAD procedure.  Same as the FORTRAN program, the strain compatibility method is used to develop the exact P-M strength interaction curves and the ratings are performed automatically. The MATHCAD procedure is more flexible in section and material properties and it can perform load ratings based on both the LFD and LRFD methods. Although some bugs have been identified in the first version of the FORTRAN program, that program has still been used by some consulting firms. Dr. Lai is using the MATHCAD procedure to study the temperature effects on load ratings of RC open-spandrel arch bridges.   

PennDOT has selected the PCS Team for the statewide underwater inspection for the third time in a row (E02364, E01765, and E01053).   SEI is one of the subconsultants.

PA Turnpike Commission has authorized the URS Team to proceed the widening design between MP 312 to MP 319. SEI is one of the subconsultants.

June 2011

Dr. Lai presented a paper titled "Inspection and Evaluation of Non-Composite Adjacent Prestressed Concrete Box Beam Bridges" at the 28th International Bridge Conference, Pittsburgh, PA.

PennDOT has selected the McCormick Taylor Team for the E02308 project.  The Team will be responsible for District 5 management and design reviews. SEI will assist on structural design review.

PennDOT has selected the DMJM Team for the E02309 project.  The Team will be responsible for District 5 management and design reviews. SEI will assist on structural design review.

November 2006

Our office has been relocated.  Our new address is:

422 Mill Street

Bristol, PA 19007

Our new phone and fax numbers are:

(215)7855350 - Phone

(215)7855359 - fax