COFI Invited to MLIT’s Midrise PFC Building Code Project
From the fire resistive perspective, PFC buildings with 4 storeys or more are now theoretically achievable, thanks to the 2-hour fire resistive approvals. From the structural design perspective, however, buildings with 4 storeys or more require “Retained Lateral Force calculation”, known as a structural design route with quite complicated procedures. Under a national program, the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) established a two-year technical project to facilitate structural design work for PFC buildings with 4 storeys or more. This project aims to enable midrise PFC buildings to be structurally designed under the allowable stress design method, which is a relatively simple and comparatively cost effective approach. The technical committee for this project consists of the top scientists and structural engineers in Japan in addition to MLIT officers. COFI has been invited to this committee. At the first meeting in fiscal 2017, the committee asked COFI brief the members on the transition background in 2009 when BC relaxed the PFC building code from maximum 4 storeys to 6 storeys. COFI is preparing to make a presentation referencing the APEGBC Technical and Practice Bulletin.