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I have recently been working on checking the design of a wooden truss with truss plates at the connections. This was part of a roof collapse investigation. The design can be found in the TPI (Truss plate institute) specifications. It will take some time to go through the requirements and...

I am working on a big masonry school and have some difficulty with understanding the exact requirements for reinforcement in masonry. One of the major locations is the gym walls that are 8.0m high and have sound blocks that prevent having RM columns except every 3.0 m. What is the solution for...

Yes in my case I have to use Masonry based on the Architects requirements. The force modification factor "R" I was asking about is used in the NBC (Canadian code) for seismic design. The code states values for R if the masonry wall has nominal ductility and other values for...

I am also working on a big masonry school and have some difficulty with understanding the exact requirements for reinforcement in masonry. One of the major locations is the gym walls that are 8.0m high and have sound blocks that prevent having RM columns eccept every 3.0 m. what is the...

How do we determine that a reinforced masonry wall has nominal ductility? This is in order to determine the force modification factor "R", for seismic design. Your input is highly appreciated.