CITY OF LOS ANGELES CALIFORNIA

Transcription

1 BOARD OF BUILDING AND SAFETY COMMISSIONERS MARSHA L. BROWN PRESIDENT VAN AMBATIELOS VICE-PRESIDENT VICTOR H. CUEVAS HELENA JUBANY ELENORE A. WILLIAMS CITY OF LOS ANGELES CALIFORNIA ANTONIO R. VILLARAIGOSA MAYOR DEPARTMENT OF BUILDING AND SAFETY 201 NORTH FIGUEROA STREET LOS ANGELES, CA ANDREW A. ADELMAN, P.E. GENERAL MANAGER RAYMOND CHAN EXECUTIVE OFFICER Hilti, Inc. RESEARCH REPORT: RR S. 122 E. Avenue (CSI #0310) Tulsa, OK BASED UPON ICC EVALUATION SERVICE Attn: Kamil Celik EVELUATION REPORT NO. ESR-2379 (918) REEVALUATION DUE DATE: June 1, 2011 Issued Date: September 1, 2009 Code: 2008 LABC GENERAL APPROVAL - Clerical Modification/Reevaluation - Exterior or Perimeter Sill and Interior Plate Anchorages. DETAILS The Powder Driven Fasteners are approved when in compliance with the description, identification and conditions of use in Evaluation Report No. ESR-2379, dated November 1, 2008, revised June 2009, of the ICC Evaluation Service, Incorporated. That report, in its entirety, is attached and made a part of this general approval. The parts of Evaluation Report No. ESR-2379 marked by the asterisks are modified by the Los Angeles Building Department from this approval. The approval is subject to the following conditions: 1. The use of fasteners is limited to installation in uncracked concrete. 2. The allowable values listed in the attached report and tables are for the fasteners only. Connected members shall be checked for their capacity (which may govern). 3. The fasteners are manufactured and identified in accordance with this report. 4. The minimum concrete thickness must be three times the fastener embedment in concrete. LADBS G- (Rev.6/08) AN EQUAL EMPLOYMENT OPPORTUNITY - AFFIRMATIVE ACTION EMPLOYER RR2708 Page 1 of 2

2 Hilti, Inc. Re: Exterior or Perimeter Sill and Interior Plate Anchorages. Calculations demonstrating that the applied loads are less than the allowable loads described in this report shall be submitted to the plan check Engineer at the time of permit application. The calculations shall be prepared by a Civil or Structural Engineer registered in the State of California. 6. X-CR-L 72 fasteners may be used in exterior, damp environments. For all other fasteners in this report, installation is limited to dry, interior locations. 7. The X-CP 72 and the X-CR-L 72 fasteners may be installed in contact with preservativetreated wood complying with IBC Section Use of other fasteners in this report is limited to installation in naturally durable wood. 8. The fasteners must be installed by personnel certified by Hilti, and having a current, Hilti-issued operator s license. DISCUSSION The clerical modification is to change the contact person. The report is in compliance with 2008 LABC. The approval is based on tests conducted pursuant to AC-70 Addressee to whom this Research Report is issued is responsible for providing copies of it, complete with any attachments indicated, to architects, engineers and builders using items approved herein in design or construction which must be approved by Department of Building and Safety Engineers and Inspectors. This general approval will remain effective provided the Evaluation Report is maintained valid and unrevised with the issuing organization. Any revisions to the report must be submitted to this Department, with appropriate fee, for review in order to continue the approval of the revised report. YEUAN CHOU, Chief Engineering Research Section 201 N. Figueroa, Room 880 Los Angeles, CA Phone (213) Fax (213) YC:elcm RR2708/MSW3 R08/31/09 C2/ /1901 Attachments: ICC-ES Report No. ESR-2379 (4 Pages). RR 2708 Page 2 of 2

3 ICC-ES Evaluation Report ESR-2379* Issued November 1, 2008 This report is subject to re-examination in one year. (800) (62) A Subsidiary of the International Code Council DIVISION: 03 CONCRETE Section: 0311 Concrete Anchoring REPORT HOLDER: HILTI, INC. 400 SOUTH 122 ND EAST AVENUE TULSA, OKLAHOMA (800) HiltiTechEng@hilti.com EVALUATION SUBJECT: EXTERIOR OR PERIMETER SILL AND INTERIOR PLATE ANCHORAGES 1.0 EVALUATION SCOPE Compliance with the following codes: # 2006 International Building Code (IBC) # 2006 International Residential Code (IRC) # 1997 Uniform Building Code (UBC) Property evaluated: Structural 2.0 USES The Hilti fasteners described in this report are used as alternatives to the cast-in-place anchors described in IBC Section , IRC Section R and UBC Section for the anchorage of wood sill plates to normalweight concrete foundations. 3.0 DESCRIPTION 3.1 Fasteners: The Hilti fasteners are powder-actuated fasteners with preattached washers. The X-DNI 72, X-ZF 72 and X-CF 72 fasteners and preattached washers are manufactured from carbon steel, with an electro-deposited zinc coating complying with ASTM B 633 SC 1, Type III. The X-CP 72 fasteners and preattached washers are manufactured from carbon steel and are mechanically galvanized in accordance with ASTM B 69 Type I, minimum Class. The X-CR-L 72 fasteners are manufactured from SAE 316 SS and the preattached washers are manufactured from SAE 304 SS. See Figures 1 through 3 for depictions of the fasteners. 3.2 Concrete: The concrete must be uncracked, stone aggregate, normal-weight concrete complying with IBC Section 190, IRC R402.2 or UBC Section 190. Concrete must have a minimum compressive strength at 28 days (fn c ) of 2,00 psi (17.2 MPa) (IBC and IRC) or 2,000 psi (13.8 MPa) (UBC). 3.3 Sill Plates: The sill plates are nominally 2-inch-thick lumber that is naturally durable or preservative-treated in accordance with the applicable code. See the footnotes to Table 1 for specific gravity requirements. 4.0 DESIGN AND INSTALLATION 4.1 General: The use of the fasteners to attach wood sill plates to the concrete must be under the following conditions: 1. No cold joint exists, between the slab and foundation, below the sill plate. 2. The sill plate is not installed on slabs supported by concrete-block foundation walls. 3. Only the X-CP 72 and the X-CR-L 72 fasteners are allowed to be used to attach preservative-treated wood to concrete. The X-DNI 72, X-ZF 72 and X-CF 72 fasteners may be used to attach naturally durable wood to concrete. 4. Where sill plates are installed on foundation walls with unbalanced soil conditions, the Hilti sill plate fasteners are not used to provide lateral support at the top of the foundation wall, and are not an alternate to the bolting required by IRC Section R Design: Table 1 specifies the allowable fastener spacings for attachment of wood sill plates to concrete foundations in Seismic Design Category A or B (IBC or IRC) and Seismic Zones 0, 1, 2 and 3 (UBC), and in areas assigned basic wind speeds up to 100 mph (161 km/h) for a 3-second gust wind speed or 8 mph (137 km/h) for a fastest mile wind speed. For sill plate connections in Seismic Design Category A or B (IBC or IRC) and Seismic Zones 0, 1, 2 and 3 (UBC) in areas assigned basic wind speeds of 10 mph (169 km/h) or greater (3-second gust) or 90 mph (14 km/h) or greater, (fastest mile), an engineered design using allowable loads described in Table 2 must be provided to the code official for approval. Exception: These seismic and wind limitations may be waived for interior non-shear walls. *Revised June 2009 ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, Inc., express or implied, as to any finding or other matter in this report, or as to any product covered by the report. Copyright 2008 Page 1 of 4

4 ESR-2379 Most Widely Accepted and Trusted Page 2 of Installation: The fasteners are to be installed in accordance with this report and the manufacturer s published installation instructions. A copy of the instructions is to be available on the jobsite at all times during installation. Installation of the X-DNI 72, X-ZF 72, X-CF 72 and X-CP 72 fasteners is limited to dry, interior locations. The X-CR-L 72 fasteners may be installed in exterior or damp locations. The X-CP 72 and the X-CR-L 72 fasteners may be installed in preservative-treated lumber. Fastener placement requires the use of a low-velocity, powderactuated tool in accordance with the manufacturer s recommendations. The concrete must attain a minimum compressive strength of 2,000 psi (13.8 MPa) prior to installation of the fasteners. The fasteners must be installed through the sill plate. Minimum edge distance is 1 3 / 4 inches (44 mm). Concrete thickness must be a minimum of three times the embedment of the fastener into the concrete..0 CONDITIONS OF USE The exterior or perimeter sill and interior plate anchorages described in this report comply with, or are suitable alternatives to what is specified in, those codes listed in Section 1.0 of this report, subject to the following conditions:.1 The fasteners are manufactured and identified in accordance with this report..2 Fastener installation complies with this report and the manufacturer s published installation instructions. In the event of conflict between this report and the manufacturer s published installation instructions, this report governs..3 For sill plate connections in 10 mph (169 km/h) 3- second gust wind speed or 90 mph (14 km/h) fastest mile wind speed areas, and Seismic Design Categories A and B (IBC) or Seismic Zones 0, 1, 2 and 3 (UBC), calculations demonstrating that the applied loads are less than the allowable fastener loads described in Table 2 and do not exceed the capacity of the sill plate, must be submitted to the code official for approval. The calculations are to be prepared by a registered design professional where required by the statutes of the jurisdiction in which the project is constructed..4 The use of fasteners is limited to installation in uncracked concrete. Cracking occurs when f t > f r due to service loads or deformations.. The minimum concrete thickness must be three times the fastener embedment in concrete..6 X-CR-L 72 fasteners may be used in exterior, damp environments. For all other fasteners in this report, installation is limited to dry, interior locations..7 The X-CP 72 and the X-CR-L 72 fasteners may be installed in contact with preservative-treated wood complying with IBC Section or IRC Section R319, as applicable. Use of other fasteners in this report is limited to installation in naturally durable wood..8 When the sill plates are supported by foundation walls with unbalanced soil conditions, the Hilti sill plate fasteners are not used to transfer lateral load from the wall to the sill plate and are not alternates to the anchor bolts required by IRC Section R The fasteners must be installed by personnel certified by Hilti, and having a current, Hilti-issued operator s license. 6.0 EVIDENCE SUBMITTED Data in accordance with the ICC-ES Acceptance Criteria for Fasteners Power-driven into Concrete, Steel and Masonry Elements (AC70), dated October IDENTIFICATION Each package of fasteners is identified with the manufacturer s name (Hilti) and address, the fastener type and size, and the evaluation report number (ESR-2379). Additionally, an H or HI is imprinted on the fastener heads, as shown in Figures 1 through 3. Furthermore, each fastener type has a unique alphanumeric code as well as the name HILTI stamped on the premounted washer. Refer to Figures 4 through 8 for depictions of the premounted washers.

5 ESR-2379 Most Widely Accepted and Trusted Page 3 of 4 FASTENER TYPE LENGTH X-DNI / 8 X-ZF / 8 X-CF / 8 X-CP / 8 TABLE 1 ALLOWABLE FASTENER SPACING 1,2,4,6 HEAD DIAMETER DIAMETER (inch) Interior Shear Walls MAXIMUM SPACING (feet) Interior Nonshear Walls 3 Exterior Shear Walls / / / / X-CR-L / 8 / For SI: 1 inch = 2.4 mm, 1 foot = 30 mm, 1 lbf = 44 N. 1 Spacings are based on the attachment of 2-inch nominal thickness, minimum 0.0 specific gravity wood sill plates to concrete floor slabs or footings. For lumber with a lower specific gravity, multiply the required spacing of fasteners for shear walls by 0.81 for lumber with a minimum specific gravity of 0.42, and 0.6 for lumber with a minimum specific gravity of Spacings shown are independent of the number of building stories. The number of stories must not exceed the limitations for conventional light-frame construction given in the applicable code. 3 All walls must have fasteners placed at 6 inches from ends of sill plates with maximum spacings as shown above. 4 Refer to Section 4.2 for seismic and wind limitations. One fastener each must be placed 6 inches and 10 inches from each end of each braced wall panel, and at 6 inches from the ends of sill plates, with maximum spacing between as shown. 6 Spacings noted above apply to concrete having a minimum compressive strength of 2,000 (13.8 MPa) at the time of fastener installation. Concrete must have a minimum compressive strength at 28 days (fn c ) of 2,00 psi (17.2 MPa) (IBC and IRC) or 2,000 psi(13.8 MPa) (UBC). TABLE 2 ALLOWABLE LOADS FOR FASTENERS DRIVEN INTO MINIMUM 2,000 psi NORMAL-WEIGHT CONCRETE 1,2 FASTENER TYPE LENGTH DIAMETER (inch) X-DNI / X-ZF / X-CF / X-CP / X-CR-L / For SI: 1 inch = 2.4 mm, 1 foot = 30 mm, 1 lbf = 44 N. EMBEDMENT CONCRETE EDGE DISTANCE TENSION (pounds) SHEAR (pounds) Washer bearing $ on sill plate 1 3 / Washer bearing $ on sill plate 1 3 / Washer bearing $ on sill plate 1 3 / Washer bearing $ on sill plate 1 3 / Washer bearing $ on sill plate 1 3 / Wood members connected to the substrate must be investigated for compliance with the applicable code in accordance with referenced design criteria, for both lateral resistance and fastener pull-through. 2 The concrete base material must have a minimum compressive strength of 2,000 psi (13.8 MPa) at the time of fastener installation. Concrete must have a minimum compressive strength at 28 days (fn c ) of 2,00 psi (17.2 MPa) (IBC and IRC) or 2,000 psi (13.8 MPa) (UBC).

6 ESR-2379 Most Widely Accepted and Trusted Page 4 of 4 FIGURE 1CHILTI X-DNI, X-ZF and X-CF SILL PLATE FASTENERS FIGURE 2CHILTI X-CP SILL PLATE FASTENER FIGURE 3CHILTI X-CR-L SILL PLATE FASTENER FIGURE 4CHILTI X-DNI WASHER FIGURE CHILTI X-ZF WASHER FIGURE 6CHILTI X-CF WASHER FIGURE 7CHILTI X-CP WASHER FIGURE 8CHILTI X-CR-L WASHER