Shearwall Holdowns
Lateral Overturning Forces are the loads that are taken out by shearwall sheathing and holdowns. These loads can be applied by either wind or seismic forces. CLP Systems rod assemblies are placed at each end of these shearwalls to anchor the structure to the foundation and resist overturning.
Unrestrained Threaded Rod Assemblies
Threaded rod assemblies that are “Unrestrained” do not require a washer and nut at each floor level. The full tensile load is transferred through the steel rod to the roof truss bearing top plate. Subsequently the bearing washer and top plate are designed to resist the full capacity of the holdown.
Top Plate Connection
Coupling Nut Connection
Restrained Threaded Rod Assemblies
Threaded rod assemblies that are “restrained” utilize a washer and nut at each floor level. This allows the load to be transferred incrementally at each floor level. Some advantages of CLP Systems restrained shearwall rod assembly holdowns are:
- Threaded rod diameters can be reduced from floor to floor.
- The quantity of compression studs can be reduced at each level as well.
- Tensile loads are transferred at each level and therefore do not accumulate at the top plate.
Floor Connection (Restrained)
