CITY OF Los ANGELES CALIFORNIA

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1 BOAR OF BUILING AN SAFETY COMMISSIONERS CITY OF Ls ANGELES CALIFORNIA EPARTMENT OF BUILING AN SAFETY 21 NORTH FIGUEROA STREET los ANGELES, CA 912 HELENA JUBANY PRESIENT VAN AMBATIELOS VICE PRESIENT E. FELICIA BRANNON VICTOR SEPAN H. CUEVAS SAMZAEH ERIC GARCETTI MAYOR RAYMON S. CHAN, C.E., S.E. SUPERINTENENT OF BUILING INTERIM GENERAL MANAGER Nvember 22, 213 Planning and Land Use Management 2 Nrth Spring Street Ls Angeles, CA 912 Cmmittee CF# RE: EPARTMENT OF BUILING AN SAFETY'S REPORT TO LOS ANGELES CITY COUNCIL REGARING MOTION ATE JULY 31, 213 FOR IENTIFYING AN ACCOUNTING WOO-FRAME SOFT STORY RESIENTIAL BUILINGS This reprt is in respnse t the mtin intrdnced by Cuncil Member Tm Labnge at the City Cuncil meeting n July 31, 213 (Exhibit A), This mtin instructed the epartment f Building and Safety (LABS) t prvide t the City Cuncil a cmprehensive prpsal fr hw the epartment can identify. and accunt fr wd-frame sft-stry multi-residential buildings, with tw r mre stries, and five r mre units, built prir t 1978 that exist in the City, and resurces such a survey wuld require. By definitin, typical wd-frame sft-stry buildings are tw r mre stries buildings with large penings in exterir wall(s) at the grund level mainly because f parking garages r ther similar pen flr space that causes a sft and/r weak stry. ' Methdlgy f Establishing A Wd-Frame Sft-Stry Residential Buildings List Step 1- Establish a Base List by Using Husing epartment's ata LABS started t use the "Plan Check and Inspectin System (PCIS)" cmputer prgram t issue building permits and capture permit data in Therefre, LABS des nt have a database t identify multi-unit residential buildings that exist prir t 1978 and cannt create a list f such buildings. Hwever, the Ls Angeles husing epartment (LAR) maintains data f all apartment buildings as part f the Systematic Cde Enfrcement Prgram, Based n LAR's data, LABS has identified 29,226 apartment buildings within the City built prir t 1978 with five r mre units (see Exhibit B fr sample). Step 2- Narrw wn the Base List By Utilizing Mapping Prgrams and LABS Recrds LABS will narrw dwn the base list by utilizing the Ggle map and ther similar available mapping prgrams alng with researching the epartment's recrds t categrize these 29,226 apartment buildings int three grups: (I) nn-sft StOlYbuildings, (2) SOft-StOlYbuildings, and (3) buildings that cannt be identified as either (I) r (2). T cmplete this step, ne Structural Engineering Assciates III will require 244 wrking days (apprximately ne year). labs G-5 (Rev,613f213) AN EQUAL EMPLOYMENT OPPORTUNITY -AFFIRMATIVE ACTION EMPLOYER

2 Based n ur guesstimatin, 4% f the buildings are nn-sft stry which are nt under the scpe f this mtin (Grup I). Twenty percent (2%) f the buildings can be identified as sftstry (Grup 2), and the remaining 4% f the buildings cannt be identified by this methd (Grup 3). Grup Type f Apartment Building Grups Apprximate Number f % f Buildinas Buildings 1 Nn-sft-stry buildings 4% 11,69 2 Sft-stry buildings 2% 5,846 3 Buildings that cannt be identified in Grup 1 r 2 4% 11,69 The Grup 3 buildings (11,69) will need further field inspectin by inspectrs t determine whether buildings are sft-stry buildings r nt. Step 3- Finalize the List by Perfrming Site Inspectins Cst LABS estimates that ne inspectr will be able t inspect 3 buildings in ne day. If tw inspectrs are assigned fr the site inspectin, it will take apprximately 195 wrking days (apprximately ne year) t cmplete the inspectin. An additinal few weeks will be needed by the inspectrs t prepare the final sft-stry apartment buildings list. In rder t create cnsistency amng inspectrs during the surveys f buildings, LABS has created an inspectin survey checklist (Exhibit C) t be used by the inspectrs wh will inspect these remaining buildings. A Structural Engineering Assciate III and tw Building Inspectrs salaries are shwn in the fllwing table. Based n ne year f salary fr the Structural Engineering Assciate III and tw Building Inspectrs, the ttal required funding will be as fllws: N. f Annual Annual Salary Plus Classificatin psitins Salary Fringe Benefits (45.9%) Structural Engineering Assciate III (7957-3) I $15,699 $154,215 Building Inspectr (4211) 2 $9,788 $264,919 Ttal 3 $419,134 The estimated timeline f steps 2 and 3 can be shrtened by increasing the number f psitins t perfrm respective tasks accrdingly. Fr questins regarding this reprt, please cntact Ken Gill, Assistant Engineering Bureau Chief, at (213) Sincerely,?;?L/.. ' (:./ /: PI WAKASHE.., S.E. Engineering Bureau Chief 2

3 JUL : PLANNING & LANIJ USE MANAGEMP"" MOTION Accrding t FEMA, recent earthquakes have prven the vulnerability f wd-frame residential buildings with weak first stries, cmmnly knwn as sft-stry buildings. Sft-stry buildings built befre 1978 are particularly at risk during an earthquake because their grund flrs generally have perimeter Walls that lack adequate strength. Hence, during an earthquake, lateral frces becme cncentrated within that stry, instead f being distributed efficiently ver the height f the structure. Cnsequently, the building is liable t "pancake" and cllapse. Apprximately 2 sft-stry buildings, cntaining thusands f residential units, were severely damaged r destryed during the 1994 Nrthridge earthquake. The Nrthridge Meadws apartment cmplex, which was a sft-stry building, saw 16 deaths during the 1994 earthquake - the heaviest cncentratin f deaths frm the quake. Earthquake preparatin is an imprtant matter f public safety iii the City f Ls Angeles. The danger is nt just the damage accrued during an earthquake, but als that the buildings are unusable after an earthquake, leaving peple hmeless and frcing the City t deal with further prblems. Currently, the City f Ls Angeles has a vluntary retrfitting rdinance in place. Hwever, the City f Ls Angeles epartment f Building and Safety des nt have a database that dcuments-the precise number r lcatins f such structures (sft-stry, wd-frame, multi-unit residential buildings).. I THEREFORE MOVE that the epartment f Building and Safety be instructed t Prvide t the City Cuncil a cmprehensive prpsal fr hw the epartment can identify and accunt fr wd-frame sft-stry residential buildings (with tw r mre stries, and five r mre units) built prir t 1978 that exist in the City, and what resurces such a survey wuld require. PRESENTE BY -f-'l.'-,!...:.l..--'--ff----- TOMLABO GE Cuncilmember, 4th istrict

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5 Inspectin Inspectr I: Inspectin date and time: OA LABS Office: Areas Inspected: Exterir Only Exterir ani Building escriptin Type f Cnstructin Building Name: Wd Frame Cncrete Shear Wall Address: Steel Frame Unreinfrced masnry Tilt-Up Cncrete Reinfrced masnry Building Cntact Phne: Cncrete Frame Other: Number f stries abve grund: belw grund: Primary Occupancy Cuncil istrict (C #): weliing cmmercial Gvernment Number f Residential Units: Other residential Offices OHistric Public Assembly Emergency Services Industrial Other: Oschl Evaluatin Investigate the building fr the cnditins belw and check the apprpriate clumn. Observed Cnditins: 1. Open parking garage with exterir penings at the grund level 2. Is the length f shear walls at the grund level less than 7% f the length f shear walls at the level abve 3. Is the length f shear walls at the grund level less than fur feet 4. Building cantilevers mre than 25 feet at the grund level Yes N Name (Print) Signature ate