EXPAN Long Span Roofs – LVL Portal Frames and Trusses

Technical Design Guide 32
WS TDG 32 Long Span Roofs - LVL Portal Frames and Trusses Cover
Three types of efficient timber roof configurations have been included in Long Span Roofs – LVL Portal Frames and Trusses. The guide presents optimised design solutions for a range of long span LVL portal frames and trusses under different loadings.

Introduction

These Guides are based on the EXPAN system, which is the result of years of research and a unique collaboration between commercial and academic partners to create innovative structural timber solutions.

Combining all the strength and endurance of steel into the lightweight elegance and flexibility of timber, the EXPAN prefabricated construction system brings timber into the commercial and industrial design age.

EXPAN’s totally prefabricated technology cleverly embeds post-tensioned tendons into timber to lock the system together. The range includes revolutionary timber frame, wall and floor systems and quick-connect portal frames.

The result is a cost effective, time efficient system that opens new doors in design and construction of commercial and industrial buildings.

With EXPAN, you can use engineered timber framing to create wide open spaces and build layouts with flexibility like never before – without the need for closely spaced columns or walls.

This guide includes:

  • Portal frame with inner prop solutions
  • Double-pitch portal frame solutions
  • Truss solutions
  • Summary of trends and findings
  • Examples detailing wind load calculation and truss design