|
V = 0.185 x 8,000 LBS = 1,480 LBS
<br />DETERMINE NEW BASE SHEAR
<br />EXISTING BASE SHEAR
<br />Determine Seismic Weight of Building with Solar Array:
<br />EXISTING
<br />SEISMIC
<br />WEIGHT
<br />= 8,000 LBS
<br />NEW SOLAR
<br />ARRAY = 3 PSF x 12 PANELS x 3.6' x 5.1' = 661 LBS
<br />NEW
<br />SEISMIC
<br />WEIGHT
<br />= 8,000 LBS + 661 LBS = 8,661 LBS
<br />THEREFORE NEW BASE SHEAR:
<br />V = 0.185 x 8,661 LBS = 1,602 LBS
<br />% CHANGE =1,602 LBS - 1,480 LBS
<br />1,480 LBS x 100 % = 8.3 % < 10% OK
<br />EXISTING LATERAL FORCE RESISTING SYSTEM IS EXEMPT
<br />FROM ANALYSIS SINCE NEW SEISMIC FORCE IS
<br />LESS THAN 10% GREATER THAN EXISTING SEISMIC FORCE.
<br />"Alterations are permitted to be made to any structure without requiring the
<br />existing structure to comply with this standard provided the alterations comply
<br />with the requirements for a new structure. Alterations that increase the
<br />seismic force in any existing structural element by more than 10 percent or
<br />decrease the design strength of any existing structural element to resist
<br />seismic forces by more than 10 percent shall not be permitted unless the
<br />entire seismic force-resisting system is determined to comply with this
<br />standard for a new structure."
<br />End of Calculations
<br />Sht # 7 of 7
<br />Loyd W. Martin Professional Engineer, Inc.
<br />2510 W. 237th St. #206 orrance, CA 90505 el:1.310.464.1804TT
<br />Email: loydwmartin@gmail.com www.loydwmartin.com
<br />2017-4652 Solar Shoppers Richard Roth Residence Date: November 29, 2017
<br /> 9924 Universal Boulevard #224- 406 Orlando, FL 32819 Tel:1.310.464.1804
<br /> Email: loydwmartin@gmail.com www.loydwmartin.com
<br />Loyd W. Martin Professional Engineer, Inc.
<br />2018-1289 Revolt Electric O Quinn Residence Date: May 1, 20182018-2637 Revolt Electric Christensen Residence Date: September 5, 20182018-2637 Revolt Electric Christensen Residence Date: October 1, 20182018-3818 Revolt Electric Ysidro Mendez Residence Date: December 12, 20182019-3131 Revolt Electric Greenfield Residence Date: September 18, 2019 2019-3187 Revolt Electric Paraza Residence Date: September 23, 20192019-3187 Revolt Electric Paraza Residence Date: September 23, 2019 2019-4671 Revolt Electric Leonar Colindres Residence Date: December 30, 20192019-4671 Revolt Electric Leonar Colindres Residence Date: December 30, 2019
<br />EQ'N 12.8- 1 ASCE 7- 16
<br />EQ'N 12.8- 1 ASCE 7- 16
<br />OK. PER ASCE 7-16 SECTION 11.B.3 ALTERATIONS
<br />2020-616 Revolt Electric Raddatz Residence Date: March 9, 20202020-616 Revolt Electric Raddatz Residence Date: March 9, 20202020-688 Solar Shoppers Etpison Residence Date: March 17, 20202020-669 Axis Solar Old Oak Ranch Date: March 23, 2020 2020-852 Grid Alt IE Jose Rodriguez Residence Date: April 15, 20202020-852 Grid Alt IE Jose Rodriguez Residence Date: April 15, 20202020-904 Grid Alt IE Reginaldo Duarte Residence Date: April 24, 20202020-913 Solar Journey Petros Petrosyan Residence Date: April 27, 20202020- 1567 Penguin Solar Anthony Robertson Residence Date: July 20, 20202021-124 ESD 20-914 Fritz Residence Date: January 13, 2021 2021-769 Solar Journey Ruben Simonyan Residence Date: March 5, 2021
<br />Exp. 3-31-19
<br />No. C58724
<br />NITRAMW.DYO
<br />REGISTEREDPROFESSIONALENGINEER
<br />C
<br />V
<br />L
<br />FOETATS
<br />ALIFORNIAICIL
<br />-23
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<br />719 W Jonquil Rd
<br />03/14/22
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