Tirey & Associates, P.C.

Consulting Structural Engineers

Project: St. Johnsbury School Additions and Renovations

Location: St. Johnsbury, Vermont

Architect: Black River Design

Completion Date: 2001

 

The St. Johnsbury School Additions and Renovations presented some unusual conditions and challenges which required a variety of solutions for both the foundations and steel framed superstructure. This project consisted of two new additions and renovations to the existing concrete building. One of the two new additions is a three story, moment frame steel structure with a total area of approximately 32,000 square feet. The second addition comprised two stories of braced steel framing with about 44,000 total square feet, including a tiered seating, quarter circle shaped auditorium. Renovations included reinforcing an existing CIP concrete floor for higher library use loads, adding new floor framing at an old stage area for new locker rooms and mechanical mezzanine and placing new helical pile foundations within the original building footprint. Foundations for the new additions consisted of steel piles with concrete pile caps, grade beams and framed concrete structural slabs as well as conventional spread footings with some area of subgrade pre-loaded for consolidation of loose soils prior to construction. Design and construction phase services were provided on this project.