Loads

A little forethought can prevent the potential overstress that occurs when deflection leads to rooftop ponding.

A best practice for building designers: find a friend to check your load paths.

ASCE/SEI 7-16 Minimum Design Loads for Buildings and Other Structures has revised Chapter 30 regarding Components & Cladding (C&C) wind loads on roofs. This report clarifies the type and scope of changes being made that will also change in the 2018 edition of the model building codes. 

The truss industry is currently employing ASCE as its source for the loading of live loads to the bottom chord of trusses for uninhabitable attics, in accordance with the International Residential Code and the International Building Code. However, there currently is a discrepancy between ASCE 7, the IBC and the IRC. This report examines the discrepancy and the correct loading for proper truss design.

The capacity of a ribbon board and its system through the composite of the ribbon board, floor sheathing and bottom plate of the wall has not been ascertained. In order to provide better guidance, a series of tests were conducted in order to determine the capacity of the ribbon board system.

“More often than  not, if it’s a flat roof, it has a green roof on it.”

 
The Industry Testing Subcommittee is making plans to keep SBCRI busy in the coming year.
 

This presentation provides information on cantilevered sill plates and use with metal plate connected wood trusses.

This presentation provides information on heel blocking requirements and related analysis.

This report will explore some special floor loading issues that are not specifically mentioned in the building codes and require special attention to ensure that the floor system is properly designed with no serviceability issues. The following are the major issues that will be discussed: stone/ceramic tiles, large concentrated loads and floor vibrations.