Seismic Restraints. Cent-R-Rail Supplement* SYSTEMS THAT MAKE SENSE

Transcription

1 SRSCR-0 Seismic Restraints Cent-R-Rail Supplement* Multi-Directional Bracing For Data-Track, Half-Rack and Multi-Tier Half-Rack Systems Structural Engineer S 9 *To be used in conjunction with Cooper B-Line s Seismic Restraints Brochure (SRS-00) SYSTEMS THAT MAKE SENSE

2 TABLE OF CONTENTS General Information and Notes Cent-R-Rail Bracing Selection Procedure Data-Track Bracing Details Data-Track Bracing Schedules Data-Track Attachments to Structure Data-Track Uneven Loading Supports Half-Rack Mounting Details Multi-Tier Half-Rack Mounting Details Anchoring Notes IMPORTANT This document contains bracing details, selection procedures, and spacing tables for the Cent-R-Rail system cable trays listed. It serves as a supplement to the previously approved B-Line Seismic Restraints brochure (SRS-00) R-04 dated SEP 22, West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

3 GENERAL INFORMATION B-Line Seismic Restraint Systems are designed to resist seismic loading in any direction while minimizing installation time and providing superior performance. On the following pages, several methods of seismically bracing Cent-R-Rail are illustrated. The choice of brace design should be governed by the system requirements and location of supports. A section on how to select seismic restraints is located on page 4. Actual applications may vary and are not strictly limited to the combinations of fittings and supports shown. Any changes to the depicted designs should be in accordance with standard engineering practices and meet the specific project requirements. Certain projects in California must also be approved by OSHPD (California Office of Statewide Health Planning & Development). For information on other styles of hangers, fittings, and miscellaneous hardware, see the latest version of B-Line s Strut Systems Catalog or Cent-R-Rail Catalog. The details shown in this document are based on the California Code of Regulations Title 24, Part 2 requirements for hospitals and essential facilities in seismic zone 4. Essential facilities are those structures which are necessary for emergency post-earthquake operations. See CCR, Title 24, Part 2, Table 2-K for a list of the types of essential facilities. As per the California Code of Regulations, Title 24, Part 2, seismic restraints are required on piping, electrical conduit, cable trays and air handling ducts. These regulations state that for the rigidly supported piping, electrical conduits, cable trays or air handling ducts, the seismic restraints shall be capable of supporting a horizontal force of 0.45 G. General Notes For Seismic Bracing A). The seismic restraint assemblies shown in this document are designed to resist vertical loading simultaneously with seismic loading (transverse & longitudinal loading). B). Channel brace length shall not exceed 9-4. C). Transverse and longitudinal braces shall be no more than 45 above or below the centerline of the cable tray. D). All channel nuts and bolts shall be tightened to the following torques: /4-6 ft.-lbs.; /8-9 ft.-lbs.; /2-50 ft.-lbs. E). Transverse and longitudinal bracing shall be spaced in accordance with the applicable table for the cable tray type. F). The cable tray system should not be braced to parts of a building that may respond differently during an earthquake. Example: Solid concrete wall and a roof (metal deck filled with lightweight concrete). G). Transverse bracing for one cable tray section may also act as longitudinal bracing for the cable tray section connected to it, if the bracing is installed within 24 inches of the elbow or tee. H). Rod stiffeners (if required) need only be installed on seismically braced support locations. B-Line Systems, Inc. 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

4 BRACING SELECTION PROCEDURE ). Determine which system is to be used: Data-Track, Half-Rack, or Multi-Tier Half-Rack (See Cent-R-Rail Catalog for fill data, load ratings, and dimensional information.) For Data-Track Systems: 2). Determine total cable tray loading in lbs./ft. ). Select bracing details from pages ). Find structure connection type (anchor size), and maximum support spacing: For cable trays up to 2 wide use Table - page 9. For cable trays greater than 2 wide use Table 2 - page 0. 5). For unevenly loaded cable trays, select applicable support method from Table 5 - page. 6). Determine if rod stiffeners are required: Maximum length for /2 - rod without requiring a rod stiffener is 25. If rod is greater than 25 use rod stiffener detail on page 8 of SRS-R. Rod stiffeners (if required) need only be installed on seismically braced support locations. 7). Review the design. For Half-Rack and Multi-Tier Half-Rack Systems: 2). Determine total tray loading in lbs./ft. ). Select support details from pages ). Find maximum support spacing from detail tables. 5). Review the design. Half-Rack Data-Track Multi-Tier Half-Rack 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

5 B-Line Channel Longitudinal Brace DATA-TRACK BRACING DETAILS Longitudinal & Transverse Bracing: Using Connector Bolt Holes ATR All Threaded Rod Rod Stiffener (if required) B-Line Channel Transverse Brace (min.) (min.) B5-2- /2 Adjustable Hinge /2 - Diameter Hardware Throughout CAS-SB Splice or Adjustable Pivot Connector Figure Data-Track Top or Bottom Rung Notes: ). Important: When one or both adjustable hinges are attached to the splice or adjustable pivot connector, a longer ( /2 x min.) bolt must be used (not included). 2). Either brace may be removed to form a longitudinal brace only or a transverse brace only, if desired. ). Both adjustable hinges may be attached to the same bolt as shown in Figure 2 below. (Rod removed for clarity.) 4). Either hinge (or both) may be attached to the all threaded rod instead of the connector bolt as shown in Figure. 5). B-Line channel is type B22 or B22SH. (See SRS-R pages 2 & 9 for load data.) 6). Note the position of longitudinal bracing when selecting hanger rod locations. Figure 2 Figure 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

6 DATA-TRACK BRACING DETAILS Longitudinal & Transverse Bracing: Drill-Through Method ATR All Threaded Rod (stiffener may be required) B-Line Channel Transverse Brace B-Line Channel Longitudinal Brace (min.) /2 - Diameter Hardware Throughout (min.) Data-Track Top or Bottom Rung 4 Maximum B5-2- /2 Adjustable Hinge Rod Attachment To Tray (See Note 2) Figure 4 Notes: ). Important: When one or both adjustable hinges are attached to the cable tray, a /2 x 4 (min.) bolt must be used (not included). 2). Rod attachment to tray may include CZNH-CD clevis hanger (shown in Figure 4), CAS-SB splice connector, ATR through field drilled holes, or other methods per B-Line recommendations. ). Either brace may be removed to form a longitudinal brace only or a transverse brace only, if desired. 4). Both adjustable hinges may be attached to the same bolt as shown in Figure 5. 5). B-Line channel is type B22 or B22SH. (See SRS-R pages 2 & 9 for load data.) 6). Note the position of longitudinal bracing when selecting hanger rod locations. 4 Maximum Figure West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

7 DATA-TRACK BRACING DETAILS Transverse Braces Using CZNH-CD Clevis Hanger ATR All Threaded Rod Rod Stiffener (if required) B-Line Channel Transverse Brace (min.) Data-Track Top or Bottom Rung /2 - Diameter Hardware Throughout CZNH-CD Clevis Hanger B5-2- /2 Adjustable Hinge Figure 6 Notes: ). Important: When attaching bracing to the CZNH-CD clevis hanger, a longer bolt ( /2 x min.) must be used (not included). 2). B-Line channel is type B22 or B22SH. (See SRS-R pages 2 & 9 for load data.) 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

8 DATA-TRACK BRACING DETAILS Longitudinal or Transverse Bracing: Using CAM-DSC Seismic Clamp B-Line Channel Transverse Brace B-Line Channel Longitudinal Brace (ATR) All Threaded Rod (Stiffener may be required) (min.) (min.) B5-2- /2 Adjustable Hinge Data-Track Top or Bottom Rung 4 Maximum /2 - Diameter Hardware Throughout Rod Attachment To CZNM-DSC Clamp Figure 7 Notes: ). Rod attachment to tray may include CZNH-CD clevis hanger (shown in Figure 7), CAS-SB splice connector, ATR through field drilled holes, or other methods per B-Line recommendations. 2). Either brace may be removed to form a longitudinal brace only or a transverse brace only, if desired. ). The adjustable hinges may be attached to different CZNM-DSC bolts as shown in Figure 8 below. 4). B-Line channel is type B22 or B22SH. (See SRS-R pages 2 & 9 for load data.) Figure West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

9 DATA-TRACK SCHEDULES Table Data-Track Bracing Schedule - For 2 Wide And Under Total Cable Structure Maximum Maximum Maximum Maximum Loading Connection Allowable Transverse Longitudinal Vertical (lbs./ft.) Type Load Split 2 Support Support Hanger Rod Spacing (ft.) Spacing (ft.) Spacing (ft.) 4 I 00/ lbs./ft. II 00/ III 00/ II 00/ lbs./ft. III 00/ IV 00/ V 00/ IV 80/ lbs./ft. V 80/ IV 60/ lbs./ft. V 60/ lbs./ft. V 50/ Notes: ). See pages -2 for structure connection details and pages 2-22 for anchor notes. 2). Load split example: 00/0 = Total weight of cables on one side. 50/50 = Weight of cables equally divided on both sides. IMPORTANT: This chart gives the maximum allowable load split for seismic calculation purposes only. Additional vertical hanger rod support methods may be required depending on the actual amount of uneven loading. See page. ). Maximum support spacings are to be rounded down to nearest vertical hanger rod location. Bracing must be installed within 4 of vertical hanger rod as shown in the bracing details. 4). Vertical hangers may consist of CZNH-CD clevis hangers, CAS-SB splice connectors, ATR through field drilled holes in the tray center rail, or other methods per B-Line recommendations. 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

10 DATA-TRACK SCHEDULES Table 2 Data-Track Bracing Schedule - For 8 & 24 Wide Total Cable Structure Maximum Maximum Maximum Maximum Loading Connection Allowable Transverse Longitudinal Vertical (lbs./ft.) Type Load Split 2 Support Support Hanger Rod Spacing (ft.) Spacing (ft.) Spacing (ft.) 4 II 00/ lbs./ft. III 00/ IV 00/ III 00/ lbs./ft. IV 00/ V 00/ lbs./ft. V 80/ lbs./ft. V 60/ lbs./ft. V 50/ Notes: ). See pages -2 for structure connection details and pages 2-22 for anchor notes. 2). Load split example: 00/0 = Total weight of cables on one side. 50/50 = Weight of cables equally divided on both sides. IMPORTANT: This chart gives the maximum allowable load split for seismic calculation purposes only. Additional vertical hanger rod support methods may be required depending on the actual amount of uneven loading. See page. ). Maximum support spacings are to be rounded down to nearest vertical hanger rod location. Bracing must be installed within 4 of vertical hanger rod as shown in the bracing details. 4). Vertical hangers may consist of CZNH-CD clevis hangers, CAS-SB splice connectors, ATR through field drilled holes in the tray center rail, or other methods per B-Line recommendations. 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

11 ATTACHMENTS TO STRUCTURE Table Anchorage Schedule Anchor Thread Diameter* Essential Bldgs. Other Than Essential Bldgs. Cast-In Wood Attachment Structure Hilti Kwik Bolt II In Hilti Kwik Bolt II In Place 4" Bolt Thru Beam Connection 000 psi Hardrock 000 psi Hardrock Anchors Type Concrete Concrete (See Tables & 2) STRUCTURE ATTACHMENT DETAILS Detail Detail 2 Detail Detail 2 Detail Detail 2 Detail Detail 4 I /8" /8" /8" /8" /8" /8" /2" /2" II /2" /8" /8" /8" /2" /8" /4" /2" III 5/8" /2" /2" /8" 5/8" /2" " 5/8" IV /4" /2" 5/8" /2" /4" 5/8" -- /4" V -- /4" -- 5/8" /4" 5/8" -- " Minimum distance from edge of concrete to center of bolt is (0 x 'D'). Detail Expansion or cast-in place anchors* of diameter D (See Table ) Minimum embedment of anchor in concrete is 'E'. Minimum distance from edge of concrete to center of bolt is (0 x 'D'). Minimum embedment of anchor in concrete is 'E'. B5-2-Bolt Size Adjustable Hinge *See anchor notes on pages B202 Square Washer & Hex Nut *See anchor notes on pages Detail 2 Minimum distance between expansion or cast-in place anchors is X B5-2- /2 Adjustable Hinge B22 Channel Longitudinal or Transverse Brace (9-4 Maximum Length) B22 Channel Longitudinal or Transverse Brace (9-4 Maximum Length) /2 x /4 Hex Head Cap Screws & N225WO Nuts Minimum Embedment Minimum Anchor In 000 psi Distance Diameter Hardrock Concrete Between 'D' 'E' Anchors 'X' /8" 2 /2" 4 /2" /2" /2" 6" 5/8" 4 " 7 /2" /4" 4 /4" 9" Table 4 Expansion or cast-in place anchors* of diameter D (See Table ) B22 Channel 5 /8 x 5 /8 /2 x /4 Hex Head Cap Screws & N225WO Nuts 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

12 ATTACHMENTS TO STRUCTURE Wood Beam Attachment Detail Flat Washer or B200 Series Square Washer & Hex Nut Bolt of diameter 'D' thru wood beam that has a minimum thickness of /2 (see Table -page ) Must be above the neutral axis of wood beam and a minimum of (4 x 'D') from bottom of the beam. B5-2-Bolt Size Adjustable Hinge /2" x /4" Hex Head Cap Screws & B225WO Nuts B22 Channel Longitudinal or Transverse Brace (9-4 Maximum Length) Note: See load data on Table -page. Wood Beam Attachment Detail 4 Used where brace runs parallel to wood beam or where double bolts are required. 4" x 6" x /8" steel angle mounted to wood beam with two bolts of diameter 'D' that are a minimum of (4 x 'D') on centers. Bolt holes are centered in 4" side of angle. (see Table -page ) /2" x /4" Hex Head Cap Screw with Lock Washer & Hex Nut B5-2- /2 Adjustable Hinge Angle must be attached to wood beam above the neutral axis at a minimum distance of (4 x 'D') from the bottom of the beam. /2" x /4" Hex Head Cap Screws & B225WO Nuts Note: See load data on Table -page. B22 Channel Longitudinal or Transverse Brace (9-4 Maximum Length) 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

13 Support Method Table 5 Data-Track Uneven Loading Supports DATA-TRACK SCHEDULES Allowable* Load Split 2 Wide 8 & 24 Data-Track Wide & less Data-Track Loads between 0-0 lbs./ft. Detail : /2 all thread rod with hex nuts on top and bottom of cable tray, splice or fitting 00/0 75/25 Detail 2: /2 all thread rod with CZNH-CD clevis hanger 80/20 67/ Detail : /2 all thread rod stiffened with B22 and SC228 s 00/0 90/0 Detail 4: 2-/2 all thread rods connected with B07 s 00/0 00/0 Detail 5: Transverse bracing attachment within 4 of any vertical hanger rod 00/0 00/0 Loads between 0.0 and 25 lbs./ft. Detail : /2 all thread rod with hex nuts on top and bottom of cable tray, splice or fitting 90/0 65/5 Detail 2: /2 all thread rod with CZNH-CD clevis hanger 70/0 65/5 Detail : /2 all thread rod stiffened with B22 and SC228 s 00/0 80/20 Detail 4: 2-/2 all thread rods connected with B07 s 00/0 00/0 Detail 5: Transverse bracing attachment within 4 of any vertical hanger rod 00/0 00/0 Loads between 25.0 and 50 lbs./ft. Detail : /2 all thread rod with hex nuts on top and bottom of cable tray, splice or fitting 70/0 60/40 Detail 2: /2 all thread rod with CZNH-CD clevis hanger 65/5 55/45 Detail : /2 all thread rod stiffened with B22 and SC228 s 75/25 65/5 Detail 4: 2-/2 all thread rods connected with B07 s 80/20 80/20 Detail 5: Transverse bracing attachment within 4 of any vertical hanger rod 80/20 80/20 Loads between 50.0 and 75 lbs./ft. Detail : /2 all thread rod with hex nuts on top and bottom of cable tray, splice or fitting 55/45 55/45 Detail 2: /2 all thread rod with CZNH-CD clevis hanger 55/45 55/45 Detail : /2 all thread rod stiffened with B22 and SC228 s 60/40 60/40 Detail 4: 2-/2 all thread rods connected with B07 s 60/40 60/40 Detail 5: Transverse bracing attachment within 4 of any vertical hanger rod 60/40 60/40 Loads between 75.0 and 00 lbs./ft.-load evenly 50/50 50/50 Detail Detail 2 Detail Detail 4 Detail 5 * Criteria based on a 6 degree tilt of the tray with respect to the horizontal. Tests were performed on single sections of cable tray with a span of 2 between supports. Maximum hanger rod length tested was West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

14 HALF-RACK MOUNTING DETAILS CZNH-WH Wall Hanger: In Concrete Slab Expansion or Cast-In Place Anchor* Use Flat Washer with /8 Dia. Anchors CZNH-WH Wall Hanger (Spacers Included) 2 Max. 6 Max. Tray Width Tray Width Thread Diameter Total Cable Wedge Drop-In Cast-In Place Loading Anchor* Anchor* Anchor* (lbs/ft) /8 /2 /8 /2 /8 / *See anchor notes on pages Figure 9 Half-Rack Table 6 Note: This mounting detail serves as a vertical support, and meets all seismic bracing requirements. CZNH-WH Wall Hanger: In Hollow CMU Wall Figure 0 Sleeve Anchor* or Toggle Bolt* Use Flat Washer with /8 Dia. Anchors CZNH-WH Wall Hanger (Spacers Included) Half-Rack 2 Max. 6 Max. Tray Width Tray Width Toggle Sleeve Total Cable Bolt* Anchor* Loading Diameter Diameter (lbs./ft.) /8 /8 / *See anchor notes on pages Table 7 Note: This mounting detail serves as a vertical support, and meets all seismic bracing requirements. 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

15 HALF-RACK MOUNTING DETAILS Drill Through Method: In Concrete Slab Expansion or Cast-In Place Anchor* Flat Washer Figure Half-Rack 2 Max. 6 Max. Tray Width Tray Width Thread Diameter Total Cable Wedge Drop-In Cast-In Place Loading Anchor* Anchor* Anchor* (lbs/ft) /8 /2 /8 /2 /8 / *See anchor notes on pages Table 8 Note: This mounting detail serves as a vertical support, and meets all seismic bracing requirements. B594 Clevis U-Bracket: In Concrete Slab Expansion or Cast-In Place Anchor* B594 U-Bracket Thread Diameter Total Cable Wedge Drop-In Cast-In Place Loading Anchor* Anchor* Anchor* (lbs/ft) /8 /2 /8 /2 /8 /2 Use Flat Washer with /8 Dia. Anchors Figure 2 Half-Rack 2 Max. 6 Max. Tray Width Tray Width *See anchor notes on pages Table 9 Note: This mounting detail serves as a vertical support, and meets all seismic bracing requirements. 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

16 HALF-RACK MOUNTING DETAILS B594 Clevis U-Bracket: In Wood Stud Wall B594 U-Bracket Half-Rack Total Cable Loading (lbs/ft) Lag Bolt* Size /4 /8 /2 Lag Bolt* Embedment into Wood Figure Use Flat Washers Except For /2 Dia. Bolts 2 x 4 Nominal (Min.) 2 Max. 6 Max. Tray Width Tray Width CZNB-U0 U-Bracket: In Drywall & Metal Stud Wall *See anchor notes on pages Table 0 Note: This mounting detail serves as a vertical support, and meets all seismic bracing requirements. Flat Washers CZNB-U0 U-Bracket Total Cable Sheet Metal Thickness Loading 20 Ga. 8 Ga. 6 Ga. 4 Ga. (lbs/ft) (.06) (.046) (.06) (.075) /4 Metal Screws Half-Rack 2 Max. 6 Max. Tray Tray Width Width Metal Stud Figure 4 Table Note: This mounting detail serves as a vertical support, and meets all seismic bracing requirements. 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

17 MULTI-TIER HALF-RACK MOUNTING DETAILS CZNH-WM Wall Hanger: In Concrete Slab Expansion or Cast-In Place Anchor* Flat Washer CZNH-WM Wall Hanger (Spacers Included) Multi-Tier Half-Rack (2-4 Tiers) Trunk Figure 5 Attachment to Trunk 2 Max. 6 Max. Tray Width Tray Width 2 Tiered Systems Thread Diameter Loading Wedge Drop-In Cast-In Place Per Tier Anchor* Anchor* Anchor* (lbs/ft) /4 /8 /4 /8 /4 / *See anchor notes on pages Table 2 or 4 Tiered Systems Thread Diameter Loading Wedge Drop-In Cast-In Place Per Tier Anchor* Anchor* Anchor* (lbs/ft) /4 /8 /4 /8 /4 /8 /4 Diameter Expansion Anchor* CPM-MTSC- /4 Clip CPM-MTSC- /4 Clip /6 2 Max. 6 Max. Tray Width Tray Width ** ** *See anchor notes on pages Gauge Galvanized Steel ** 2 maximum rung spacing. Notes: Table ). This mounting detail serves as a vertical support, and meets all seismic bracing requirements. 2). CPM-MTSC- /4 Clip must be attached to the trunk nearest each cable tray support location using a /4 diameter x /2 long self-tapping metal screw (included). ). The CPM-MTSC- /4 Clip must be attached to the wall using a /4 diameter expansion anchor.* 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

18 MULTI-TIER HALF-RACK MOUNTING DETAILS CZNH-WM Wall Hanger: In Hollow CMU Wall Toggle Bolt or Sleeve Anchor* CZNH-WM Wall Hanger (Spacers Included) 2 Tiered Systems Toggle Sleeve Loading Bolt* Anchor* Per Tier Diameter Diameter (lbs/ft) /8 /8 /2 Multi-Tier Half-Rack (2-4 Tiers) CPM-MTSC Clip Attachment to Wall Use Flat Washer with /8 Dia. Anchors Trunk Attachment to Trunk Figure 6 2 Max. 6 Max. Tray Width Tray Width *See anchor notes on pages Table 4 or 4 Tiered Systems Toggle Sleeve Loading Bolt* Anchor* Per Tier Diameter Diameter (lbs/ft) /8 /8 /2 CPM-MTSC Clip (See notes and 4.) / ** ** *See anchor notes on pages Gauge Galvanized Steel ** 2 maximum rung spacing. Notes: Table 5 ). This mounting detail serves as a vertical support, and meets all seismic bracing requirements. 2). CPM-MTSC Clip must be attached to the trunk nearest each cable tray support location using a /4 diameter x /2 long self-tapping metal screw (included). ). The CPM-MTSC Clip must be attached to the wall using a /4 diameter sleeve anchor* or a /8 diameter toggle bolt*. 4). Use CPM-MTSC- /4 for /4 diameter hardware, and CPM-MTSC- /8 for /8 diameter hardware. 2 Max. 6 Max. Tray Width Tray Width 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

19 MULTI-TIER HALF-RACK MOUNTING DETAILS CZNH-WM Wall Hanger: In Drywall & Metal Stud Wall /4 Screws & Flat Washers CZNH-WM- /4 Wall Hanger (Spacers Included) Multi-Tier Half-Rack (2-4 Tiers) Trunk 2 Max. 6 Max. Tray Tray Width Width 2 Tiered Systems Loading Sheet Metal Thickness Per Tier 20 Ga. 8 Ga. 6 Ga. 4 Ga. (lbs/ft) (.06) (.046) (.06) (.075) Table 6 Notes: Attachment to Trunk CPM-MTSS Strip Attachment to Metal Stud Metal Stud Gauge Galvanized Steel 50 CPM-MTSS Strip Figure 7 2 Max. 6 Max. Tray Tray Width Width or 4 Tiered Systems Loading Sheet Metal Thickness Per Tier 20 Ga. 8 Ga. 6 Ga. 4 Ga. (lbs/ft) (.06) (.046) (.06) (.075) Table 7 ). This mounting detail serves as a vertical support, and meets all seismic bracing requirements. 2). A CPM-MTSS Strip must be run continuously below the bottom tier as shown. Discontinuous gaps between CPM-MTSS Strips are permitted between studs. ). The CPM-MTSS Strip must be attached to the trunk of the cable tray at a spacing not to exceed the maximum support spacing given in Table 6 or 7; using /4 diameter x /2 long self-tapping metal screws (4 screws included with each CPM-MTSS Strip). 4). The CPM-MTSS Strip must be attached to the wall at a minimum of every 2-0 using /4 diameter self-tapping metal screws (not included) fastened into the metal studs. 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

20 MULTI-TIER HALF-RACK MOUNTING DETAILS CZNH-WM Wall Hanger: In Wood Stud Wall Lag Bolt* Embedment into Wood CZNH-WH Wall Hanger (Spacers Included) Loading Per Tier (lbs/ft) 2 Tiered Systems Lag Bolt* Size /4 /8 /2 Multi-Tier Half-Rack (2-4 Tiers) Trunk Attachment to Trunk Use Flat Washers Except For /2 Dia. Bolts 2 Max. 6 Max. Tray Width Tray Width *See anchor notes on pages Table 8 or 4 Tiered Systems Loading Lag Bolt* Size Per Tier /4 /8 /2 (lbs/ft) Notes: CPM-MTSS Strip Attachment to Wood Stud 2 x 4 Nominal (Min.) CPM-MTSS Strip Figure Max. 6 Max. Tray Width Tray Width Gauge Galvanized Steel ** ** *See anchor notes on pages **2 maximum rung spacing. Table 9 ). This mounting detail serves as a vertical support, and meets all seismic bracing requirements. 2). A CPM-MTSS Strip must be run continuously below the bottom tier as shown. Discontinuous gaps between CPM-MTSS Strips are permitted between studs. ). The CPM-MTSS Strip must be attached to the trunk of the cable tray at a spacing not to exceed the maximum support spacing given in Table 8 or 9; using /4 diameter x /2 long self-tapping metal screws (4 screws included with each CPM-MTSS Strip). 4). The CPM-MTSS Strip must be attached to the wall at a minimum of every 2-0 using /4 diameter lag bolts with a minimum embedment of 2 into the wood studs. 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

21 ANCHORING NOTES Wedge Anchors Notes: ). Wedge anchors shall be Hilti Kwik Bolt-II, ICBO Report Number Carbon steel or stainless steel anchors can be used. Other anchors may be used in place of Hilti Kwik Bolt-II provided they have an ICBO rating of equal or greater loading values. Install anchors in accordance with manufacturer s recommendations. 2). Minimum embedment depth is as follows: Anchor Diameter Min. Embedment Depth /4 2 /8 2 /2 /2 /2 ). When the slab thickness is less than the minimum embedment plus inch; use through bolts, washers, and nuts. 4). 50% of the anchors shall be proof tested to 80% of twice the allowable load in tension. If any anchor fails, the immediate adjacent anchors must also be tested. 5). The anchors shall be installed in 000 psi normal weight concrete. Consult the engineer of record for lightweight concrete or where the concrete has a strength less than 000 psi. 6). When installing drill-in anchors in existing non-prestressed reinforced concrete, use caution to avoid cutting or damaging existing reinforcing bars. When installing them into existing prestressed concrete (pre- or post-tensioned), locate the tendons by using a non-destructive method prior to installation. Maintain a minimum clearance of one inch between the reinforcement and the anchor. Sleeve Anchors Notes: ). Sleeve anchors shall be Hilti Hex Head Sleeve Anchors. Carbon steel or stainless steel anchors can be used. Other anchors may be used in place of Hilti provided they have a rating of equal or greater loading values. Install anchors in accordance with manufacturers recommendations. 2). Minimum embedment depth is as follows: Anchor Diameter Min. Embedment Depth /8 /4 /2 /2 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

22 ANCHORING NOTES Drop-in (Shell Type) Anchors ). Shell type anchors shall be Hilti Drop-In, ICBO Report Number Other anchors may be used in place of Hilti Drop-In provided they have an ICBO rating of equal or greater loading values. Install anchors in accordance with manufacturers recommendations. 2). Minimum embedment depth is as follows: Anchor Diameter Min. Embedment Depth /4 /8 9 /6 /2 2 ). When the slab thickness is less than the minimum embedment plus inch; use through bolts, washers, and nuts. 4). 50% of the anchors shall be proof tested to 80% of twice the allowable load in tension. If any anchor fails, the immediate adjacent anchors must also be tested. 5). The anchors shall be installed in 000 psi normal weight concrete. Consult the engineer of record for lightweight concrete or where the concrete has a strength less than 000 psi. 6). When installing drill-in anchors in existing non-prestressed reinforced concrete, use caution to avoid cutting or damaging existing reinforcing bars. When installing them into existing prestressed concrete (pre- or post-tensioned), locate the tendons by using a non-destructive method prior to installation. Maintain a minimum clearance of one inch between the reinforcement and the anchor. Do not use drop-in anchors in the tension zone of concrete slabs. Cast-In-Place-Anchors ). Cast-in-place anchors shall meet the requirements as set forth in the California Building Code. Lag Bolts ). Lag bolts of all diameters shall have embedment into wood studs, unless noted otherwise. Toggle Bolts ). Toggle bolts are to be used for hollow CMU construction, and consist of a toggle head and a machine screw. Toggle bolts shall be B-Line ATB series. Other anchors suitable for hollow CMU construction may be used provided they have a rating of equal or greater load values. Install anchors in accordance with manufacturers recommendations. 509 West Monroe Street Phone : Highland, Illinois Fax : Structural Engineer S of

23 APPENDIX - SEISMIC MAP & METRIC CONVERSION CHARTS SEISMIC MAP 2B 0 2A 2B 4 2A 2B 0 2A 4 2B 0 2A 4 2A 2A Alaska 2B 4 0 2B 4 2B 2B Hawaii 2B 0 2A 0 2A Aleutian Islands Puerto Rico This guideline is based on the California Code of Regulations Title 24, Part 2 requirements for hospitals and essential facilities in seismic zone 4. Essential facilities are those structures which are necessary for emergency post-earthquake operations. See CCR, Title 24, Part 2, Table 2-K for a list of types of essential facilities. The formula for lateral seismic force from CCR, Title 24, Section 2-0 and Table 2-P; FP = ZICpWp = 0.45Wp (seismic zone 4). Any modifications of this guideline for less stringent seismic zones, shall be made in accordance to the most recent uniform building code and by a qualified registered engineer. To Convert From To Multiply By inch (in) millimeter (mm) x 0 + inch (in) centimeter (cm) inch (in) meter (m) x 0-2 foot (ft) meter (m) x 0 - inch 2 (in 2 ) * centimeter (cm 2 ) inch (in ) ** centimeter (cm ) x 0 + inch 4 (in 4 ) *** centimeter (cm 4 ) x 0 + pound (lb) kilogram (kg) x 0 - pound/foot (lb/ft) kilogram/meter (kg/m) pounds-force (lbf) kilonewton (kn) pounds-force (lbf) newton (N) METRIC CONVERSION CHART Metric Symbols cm = centimeter kg = kilogram kn = kilonewton m = meter mm = millimeter N = newton * Area of Section ** Section Modulus (S) *** Moment of Inertia Date: Page No. Sheet Number: of

24 SRSCR-0 Bolted Framing Spring Steel Fasteners Electronic Enclosures Electrical Enclosures Cable Runway & Relay Racks Electrical/Mechanical Customer Service Telecom Phone: Fax: Address: Cooper B-Line Cooper B-Line 509 West Monroe St East 2nd Parkway Highland, IL Aurora, CO B-VOCAL SM with B-Line Voice Of the Customer...Actively Listening ext. 456 SYSTEMS THAT MAKE SENSE 200 Cooper B-Line Printed in U.S.A..50