connect2
Structural
- Dec 24, 2003
- 306
Hi All,
We are doing a seismic evaluation of a URM structure. Is anybody familiar with FEMA 356, Chpt. 7 P. 7-4, eqn (7-2). Deals with testing to determine the individual bed joint shear strength of the mortar. From this equation you deduct P(D+L), or the gravity load bearing on the brick above the one you are testing. Makes sense in order to determine what the shear strength of the mortar is. Question finally is what tributary area above the brick would you use? Would you assume a 45 degree slope extending away and up from the brick ends till you have an effective width/length ... Well that's a good question as well?...and calculate P(D) from that? It's a 3 course muli-wythe wall with header courses every 6th course. Thank-you for considering this.
We are doing a seismic evaluation of a URM structure. Is anybody familiar with FEMA 356, Chpt. 7 P. 7-4, eqn (7-2). Deals with testing to determine the individual bed joint shear strength of the mortar. From this equation you deduct P(D+L), or the gravity load bearing on the brick above the one you are testing. Makes sense in order to determine what the shear strength of the mortar is. Question finally is what tributary area above the brick would you use? Would you assume a 45 degree slope extending away and up from the brick ends till you have an effective width/length ... Well that's a good question as well?...and calculate P(D) from that? It's a 3 course muli-wythe wall with header courses every 6th course. Thank-you for considering this.