Caribbean Disaster
Mitigation Project
Implemented by the Organization of American States
Unit of Sustainable Development and Environment
for the USAID Office of Foreign Disaster Assistance and the Caribbean Regional Program
CONNECTIONS
RAFTERS MAY BE BUILT INTO THE BELT BEAM AT THE TOP OF THE WALL. HOWEVER THIS PRACTICE IS DISCOURAGED BECAUSE OF FAILURES OBSERVED AFTER RECENT HURRICANES.
A recommended way to build in rafters is to set plates into the beam to attach the rafters. Leave some links showing after secruing the rafters to the plates, concrete is cast between them up to sarking level.
FAILURE MODES OF TYPICAL METHOD:
The bar of typical method can split the wood.
The links must not be closed at the top, they will open.