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Show Wasatch Block Building Mt. Pleasant, Utah Page 3 4. The capacity of the second floor framing had been increased by adding steel columns under the original beams. Some of these columns were supported on the main floor beams offset from the supporting columns. See Photographs 15 and 16. OBSERVATIONS OF CURRENT REMODEL: 1. LVL beams consisting of (4) 1-3/4x18 in. members had been installed to support the upper roof trusses. See Photographs 5 and 6. 2. A new 2x6 floor with ~ in. OSB sheathing has been installed above the original second floor. Mr. Norlander stated that the new joists had been installed directly above the original joists. 3. A column had been installed under the southernmost beam supporting the second floor. The top of this column supports the ledgers nailed to the side of the beam rather than the beam itself. See Photograph 7. The base of the new column was supported on a new concrete pier and footing. See Photograph 14. 4. The east URM wall of the single story portion of the building had been replaced with a 2x6 wood framed wall. See Photographs 11 and 12. The other exterior URM walls had been furred out with 2x4 wood framed walls. The newly constmcted walls were sheathed with 7116 in. OSB. See Photographs 6 and 10 to 13. 5. The partition wall located between the single and two story sections of the building has been sheathed with OSB. See Photograph 13. DISCUSSION: It is our opinion that the remodeling efforts, with the associated addition of certain structural members and elements, have a minor affect on the overall stability of this structure. This structure was constructed without an existing building code and with the materials and construction methods of the time. The unreinforced walls are heavy and thus significantly add to the seismic load to this building without supplying adequate seismic resistance. As such, this building is susceptible to damage and potential collapse during a seismic event. The purpose of this report is to evaluate the affect of the recent remodel on the building. The replacement of the east wall of the single story section and the furring of the other exterior walls with sheathed walls has added load resistant elements to this building. The sheathing of the partition wall between the single and two story sections of the building and the furred out sheathed wall at the north end of the building has added other load resistant elements. In order to take advantage of these load resistant elements, properly constructed diaphragms and connections to these elements are necessary. These elements should be properly attached to foundations capable of resisting the seismic loads. This has not been included in the remodel. |