College - Author 1
College of Architecture and Environmental Design
Department - Author 1
Construction Management Department
Degree Name - Author 1
BS in Construction Management
Date
6-2024
Primary Advisor/Subject Matter Expert (SME)
Maryam Kouhirostami, College of Architecture and Environmental Design, Construction Management Department
Abstract/Summary
This study evaluates the performance, cost-effectiveness, and constructability of two different truss systems by constructing identically sized mockup models. The comparison focuses on the top chord POSI-Strut Metal Web System and the bottom chord truss system, both utilizing Boise Cascade LVL engineered lumber. Our findings reveal that the top chord POSI structure truss system is more cost-effective and time-efficient compared to the bottom chord truss system. The top chord system's design reduces material costs and speeds up construction time, making it an attractive option for projects with tight budgets and schedules. However, the top chord POSI-Strut Metal Web System has a significant drawback: it lacks symmetry in framing. This asymmetry introduces complications in the constructability, posing challenges for builders during the assembly process. In contrast, the bottom chord truss system, although less economical and more time-consuming, offers better symmetry in framing. This symmetry simplifies the construction process, making it easier and more straightforward for builders to execute the framing, yet forces more labor on the overall installation of the truss. While the top chord POSI-Strut Metal Web System provides economic and time-saving advantages, its complexity in framing can lead to potential constructability issues.
URL: https://digitalcommons.calpoly.edu/cmsp/783
Poster Board
Final Proposal_Matthew Maloney (1).pdf (157 kB)
Proposal
Reflection and Student Evaluation - Matthew Maloney.pdf (113 kB)
Reflection