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• <br /> • <br /> YU &TROCHALAKIS, PLLC <br /> Structural Engineers <br /> Substantial Structural Damage is defined as a reduction of more than 33%of the lateral force system and or <br /> gravity elements that support more than 30&of the floor area. <br /> 1BS)SUBSTANTIAL STRUCTURAL ALTERATION.An inwhlch the gre.r;tybad-carry;^g <br /> structural e1erna m altered within a 5-year period support more than 30 percent Of the total floor <br /> anti roof area Of the building or structure The areas to be counted toward the 30 percent shait <br /> include me O3oirres,Penthouses.and in-ft:ied courts and shafts tributary to the altered structure <br /> elements <br /> ta$1$U41*UALLSTRUC►URM.0AMA6E A.condrt-on ertefe a'+;F`c°the f2 rxng app„ <br /> t.Tr*vem ca,elements of the lateral force•retot+ng System rave suffered damage such <br /> Oat the lateral ioaocarrying capacity of any:tor;in soy nontonta'.*rent.ion h35 been <br /> reduced by more.teas 33 percent from to R"edamoge condition <br /> 2.ahe ersestyof any rem ical compdremcarnynggrsft load,cr any group ofsuch <br /> components,that has a tributary area more than 30 percent of the total area of the <br /> structure;boors;and rroofisl has been reduced more than 20 percent from its <br /> predamage condition,and the remaining capacity cf such affected elements,v.-an <br /> respect to aii dead and five loads.is less than 7b percent of that required by the <br /> for new buildings of similar Structure.purpose and location <br /> 3.The capacity of airy structural component naming sow IcaCT,rr arry group of such <br /> tornporent.S.trot Su000r tit more than 30 percent of the roof area of briar <br /> construction has beers reduced more than 26 percent from it predarrage condition. <br /> and the remaining capacity with respect to dead,live and snow loads is less than 73 <br /> percent of that rep rlred by the Pti,1,;1 Ct7_for new bui,d,ngs of 2imi'ar <br /> structure.purpose and location <br /> TECHNICALLY INFEASIBLE n of a :;';that nes little ie ihood of tieing <br /> accomOl?Shed b3113u5e one existing structural conditions resu e toe rn;m5 a'C.r,r.:rrrm 1or <br /> load-bearing member that is an essential part of the 5tructura'frame,or because Other existing <br /> Physical Or site constT3'mts prohibit mvdif tetioe or acts ton of elements,Spaces or features <br /> which are in full and strict compliance math the minimum rept;remento for new construction and <br /> 'Mirth are nece2sary to provide accessitaicy. <br /> UNSAFE.Su:idins,structures or equipment that are unsanitary,or that are deficient due to <br /> inadepaate rr*tins of egress fist r-_t,inadequate light ardeert iat Orr,or that constitute a fire <br /> hazard,or in which the structure or indv(-dual structural members definition of <br /> 'Dot-or'or that are otrerwite Oar rorstol'rrjmcst few tht publicwelfare,or that'Twa:te <br /> PIcealorimOrogerpccubenCvorinadequatemai=ntenancesha`lbedeeroeduncafe Avacer: <br /> The existing building is composed of four units with the same size. Therefore 25%of the building has <br /> been damaged which is below the two thresholds. Based on this,it is proposed that the building can be <br /> reconstructed to the predamage condtion. <br /> If you have any questions,please feel free to call. <br /> • <br /> Sincerely, .TROC� <br /> Panos Trochalakis,P.E.,S.E. <br /> Principal "�� r✓ <br /> 33823 44' <br /> 'tb gA'GISTEA- <br /> 4:c+ NAL .451$ <br /> 13555 SE 36th Street,#310 INNOVATIVE DESIGN Phone 425-451-9049 <br /> Bellevue,WA 98006 Fax 425-451-8532 <br />