Bedford Reinforced Plastics Inc. www.bedfordreinforced.com Page 1  

   

Product Specifications  Bedford Standard Ladders

       

Disclaimer

BEDFORD REINFORCED PLASTICS INC. disclaims liability for any personal injury, property or other damages of any nature whatsoever, whether special, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or reliance on BEDFORD REINFORCED PLASTICS INC. documents. BEDFORD REINFORCED PLASTICS INC. also makes no guaranty or warranty as to the accuracy or completeness of any information published herein. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances.  

 

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Product Specifications BRP Standard Ladders

Scope  

This   specification   covers   the   details   about   the  design   criteria,   product   description   and  installation  details  of  BRP  standard  ladders.  

Design  Criteria  

BRP   ladder   systems   are   designed   to   meet   or  exceed   the   minimum   load   requirements   of  Standard   Caged   Ladder   as   per   OSHA   1910.27  and   to   meet   60   psf   loading   on   the   landing  platforms.    

BRP  Ladder  Systems  

BRP   offers   standard   caged   ladders,   access  ladders,   and   access   ladders   with   walk-­‐through  and   return.   The   components   of   BRP   ladder  systems   such   as   ladder   side   rails,   rungs,   cage  hoops  and  straps  are  all  made  of  BRP  pultruded  fiber-­‐reinforced  plastics.    

The  side  rails  are  made  of  2"  x  ¼"  square  tube.  Ladder   rungs   are   1¼"   dia.   fluted   tubes   for  added  traction.    

The   components   for   caged   ladders   are:   cage  hoops  made  of  4"  x  ⅛"   flat   sheet  and   the  cage  straps   or   ribs   made   of   2½"   x   3⁄16"   flat   sheet.  Installation   accessories   such   as   stand-­‐off   clips  and  anchor  clips  are  made  of  8"  x  23⁄16"  x  ⅜"  and  3"  x  ⅜"  angle  clips  respectively.    

All   BRP   ladders   are   shop   assembled   by  mechanically   fastening   the   fluted   rungs   to   the  side  rails  using  ¼"  dia.  series  300  SS  spring  pins  with   the   option   of   supplying   pre-­‐drilled   stand-­‐off  clips  and  anchor  clips  for  field  attachments.        

BRP  Landing  Platforms  

BRP   offers   landing   platforms   that   are   required  for  fixed  ladders  exceeding  20  feet  as  per  OSHA  1910.27.   BRP   landing   platforms   are   capable   to  handle   a   uniform   load   of   60   psf.   The   landing  platforms  provide  a  landing  area  of  maximum  of  4'   x   6'   equipped   with   BRP   standard   handrail  systems  with   kick   plate   along   the  perimeter   of  

the   landing   while   providing   an   entry   point   as  required  to  safely  access  the  ladder.  The  landing  platform   framework   shall   be   made   of   BRP  standard   structural   shapes   with   1½"   x   1½"  square   grid   molded   grating   and   300   series  hardware  shall  be  used  for  connections.    

Product  Description  

All   the   fiberglass   components   used   for   BRP  ladder   systems   are   made   with   the   pultrusion  process  using  fiberglass  reinforcement  and  resin  systems   necessary   to   meet   the   design  requirements  and  minimum  properties  given  in  Table  1.    

Glass   Reinforcements:   Pultruded   structural  shapes  used   for   BRP   ladder   systems   shall   have  the   fiber   reinforcement   in   the   form   of  continuous   rovings   and   continuous   strand  mat  for   adequate   mechanical   and   physical  properties   and   surface   veil   for   UV   protection  and  corrosion  resistance.  

Resin  Systems:  Resin  systems  used  in  BRP  ladder  systems   provide   superior   corrosion   resistance  and   are   available   in   FR   Iso-­‐Polyester   and  Vinylester   resin   systems   with   additives   for  superior   fire   resistance,   UV   protection   and  pigments.   BRP   ladder   systems   are   typically  pigmented  yellow  and  can  match  other  colors  if  needed.    

Table  1.  Minimum  Properties  Property   ASTM     Value  Tensile  Strength,  psi   D  638   30000  Tensile  Modulus,  psi   D  638   2.5  x106  Flexural  Strength,  psi   D  790   30000  Flexural  Modulus,  psi   D  790   1.8  x106  Short  Beam  Shear,  psi   D  2344   4500  Full  Section  Modulus,  psi   N/A   2.8  x106  Density,  lb/in3   D  792   0.062-­‐0.07  Flame  Spread   E  84   25  or  less    Installation  Methods  

BRP   ladder   systems  have   to  be   installed  as  per  the  directions  of  approved  assembly  drawing  or  design  engineer.  

 

 

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Typical  BRP  Standard  Caged  Ladder  with  Walk-­‐Through  

 

6' MAX COLUMNTO COLUMN

1-1/2" GRATING THICKNESS

5' MAX

4' MAX

QTY.LENGTHDESCRIPTIONPART NAMEDRAWING NUMBERITEM

120.000CM-15CM-15CM-151321.500HEXBOLT1/2-13x1_1/2_SSHEX-BOLT_500X1500_S_SHEX-BOLT_500X1500_S_S2161.813SQTB1X1/8SPCRSPCR3122.000HEXBOLT1/4-20x2_SSHEX-BOLT_250X2000_S_SHEX-BOLT_250X2000_S_S442.000SLOTTED_SPRING_PINASM-DOWELASM-DOWEL544.000FHSC_SCREW1/2X4_SSFHSC_SCREWFHSC_SCREW624.000TOE PLATE CLIPBRP-38VBRP-38V744.250HEXBOLT1/2-13x4_1/4_SSHEX-BOLT_500X4250_S_SHEX-BOLT_500X4250_S_S8165.000HEXBOLT3/8-16x5_SSHEX-BOLT_375X5000_S_SHEX-BOLT_375X5000_S_S966.500ANG4X3/8CLP-1CLP-110111.446ANG3X1/4P_ANG_4P_ANG_411111.946ANG3X1/4P_ANG_3P_ANG_312229.500SQTB2X1/8HR1_SQTB_7HR1_SQTB_713141.563CH8X2_3/16X1/4P_CH_2P_CH_214145.813CH8X2_3/16X1/4P_CH_1P_CH_115145.813CH8X2_3/16X1/4P_CH_3P_CH_316158.000SQTB3X1/4P_SQTB_2P_SQTB_217158.500SQTB3X1/4P_SQTB_1P_SQTB_118166.761ANG4X3/8P_ANG_1P_ANG_119166.761ANG4X3/8P_ANG_2P_ANG_220175.000CH8X2_3/16X1/4P_CH_4P_CH_421179.375CH8X2_3/16X1/4P_CH_5P_CH_522179.375GRATE1_1/2X48GP-1GP-12376FLW1/2SSFLAT-WASHER_500_S_SFLAT-WASHER_500_S_S2412FLW1/4SSFLAT-WASHER_250_S_SFLAT-WASHER_250_S_S2532FLW3/8SSFLAT-WASHER_375_S_SFLAT-WASHER_375_S_S261HAND RAIL ASSEMBLYHR-1HR-1271HAND RAIL ASSEMBLYHR-2HR-2281HAND RAIL ASSEMBLYHR-4HR-4291HAND RAIL ASSEMBLYHR-5HR-53040HEXNUT1/2-13SSHEX-NUT_500_S_SHEX-NUT_500_S_S3116HEXNUT3/8-16SSHEX-NUT_375_S_SHEX-NUT_375_S_S3212LOCKNUT1/4-20SSLOCKNUT_250_S_SLOCKNUT_250_S_S338RIVET1/4NYLON-YEASM-RIVETASM-RIVET34

DESCRIPTIONDATEBYREV.

---00SHEET 1 OF 1" = 1"3/32± 0.5°ANG:

PLATFORM-FRONT 10-27-14± .010.XXX:± .030.XX:

RESTING PLATFORMFRONT ACCESS BB± 1/16X/Y:

AECTOLERANCES

PLAN VIEW

FRONT ELEVATION SIDE ELEVATION

FRP MOLDED GRATING:MOLDED GRATING BY BEDFORD REINFORCED PLASTICS 1 1/2" SQ. MESH x 1-1/2" THICK, PREMIUM GRADE THERMOSETTING POLYESTER RESIN AND THERMALLY CURED. NON SKID GRITTED WALKING SURFACE, COLOR TO BE GREEN. MEETS ASTM E-84, CLASS 1, FLAME SPREAD RATING LESS THAN 25 AND SELF EXTINGUISHING REQUIREMENTS OF ASTM D-365.

FRP STRUCTURAL SHAPE:FRP STRUCTURAL SHAPES BY BEDFORD REINFORCED PLASTICS, PREMIUM GRADE POLYESTER RESIN WITH FIRE RETARDANT, COLOR TO BE DARK GRAY, STANDARD STRUCTURAL SHAPES ARE MANUFACTURED USING A SURFACE VEIL AS U.V. INHIBITORS TO PROTECT AGAINST U.V. DEGRADATION. MEETS ASTM E-84, CLASS 1, FLAME SPREAD RATING LESS THAN 25 AND SELF EXTINGUISHING REQUIREMENTS OF ASTM D-635.

TWO RAIL HANDRAIL BY BEDFORD REINFORCED PLASTICS, RAILS TO BE MADE WITH 2" x 1/8" SQUARE TUBE AND POST TO BE MADE WITH 1 3/4" X 1/4" SQUARE TUBE WITH SLEEVE. PREMIUM GRADE POLYESTER RESIN WITH FIRE RETARDANT, COLOR TO BE YELLOW. MEETS OSHA SPECIFICATION REQUIREMENT 1910.27. MEETS ASTM E-84, CLASS 1, FLAME SPREAD RATING LESS THAN 25 AND SELF EXTINGUISHING REQUIREMENTS OF ASTM D-635.

FRP HANDRAIL:

GENERAL NOTES:

1. RESIN SYSTEM TO BE FIRE RETARDANT POLYESTER.2. CUSTOMER TO VERIFY ALL DIMENSIONS AND APPROVE DRAWING.3. ALL CUTS TO BE SHOP SEALED WITH CLEAR HETROLAC.4. ALL GRATING WILL SHIP CUT TO SIZE & LOOSE FOR FIELD ATTACHMENT BY OTHERS5. ALL STRUCTURAL SUPPORTS TO BE SUPPLIED BY BEDFORD PLASTICS AS SHOWN ON DRAWING.6. S.S. GRATING HOLD DOWN CLIPS TO BE SUPPLIED BY BEDFORD PLASTICS7. ALL HARDWARE FOR GRATING TO BE S.S. 1/4 DIA W/ LOCKNUTS,8. ALL HARDWARE FOR STRUCTURALS AND HANDRAIL TO BE 316 S.S.9. HAND RAILS TO SHIP IN SECTIONS AS SHOWN.

FRP CAGE:FRP CAGE BY BEDFORD REINFORCED PLASTICS, CAGE HOOPS TO BE 4" WIDE X 1/8" THICK FLAT STRIPS. MAXIMUM HOOP SPACING TO 4'-0", RIBS ARE TO BE 2 1/2" WIDE X 3/16" THICK FLAT STRIPS. CAGE ATTACHEMENT CLIP IS TO BE MADE FROM C8" X 2 3/16" X 3/8" CHANNEL. RIBS, HOOPS AND CAGE ATTACHMENT CLIPS TO BE ASSEMBLED ON LADDER

FRP LADDER:FRP LADDER BY BEDFORD REINFORCED PLASTICS, RAILS TO BE MADE WITH 2" x 1/4" SQUARE TUBE AND 1 1/4" FLUTED ROUND TUBE. PREMIUM GRADE POLYESTER RESIN WITH FIRE RETARDANT, COLOR TO BE YELLOW. MEETS OSHA SPECIFICATION REQUIREMENT 1910.27. MEETS ASTM E-84, CLASS 1, FLAME SPREAD RATING LESS THAN 25 AND SELF EXTINGUISHING REQUIREMENTS OF ASTM D-635.

GRATING NOT SHOWN

THIS DRAWING IS THE CONFIDENTIAL PROPERTY OF BEDFORD REINFORCED PLASTICS, INC.,AND MUST NOT BE MADE PUBLIC OR COPIED, AND IS SUBJECT TO RETURN ON DEMAND. ALL RIGHTS OF INVENTION OR DESIGN ARE RESERVED.

SCALE REV.

DRAWN

CHECKED

APPROVED

TITLE

JOB

DRAWING NO.

REF.

DATE:

ISOMETRIC VIEW

3' 6"

3' 8"

6' 7-3/8"

3' 7-13/16"

4'

1-1/2" GRATING THICKNESS

6'

4' REF

6' MAXCOLUMN TO

COLUMN

30.0°

5' MAX

4' MAX

QTY.LENGTHDESCRIPTIONPART NAMEDRAWING NUMBERITEM

80.000CM-15CM-15CM-151301.500HEXBOLT1/2-13x1_1/2_SSHEX-BOLT_500X1500_S_SHEX-BOLT_500X1500_S_S281.500HEXBOLT1/4-20x1_1/2_SSHEX-BOLT_250X1500_S_SHEX-BOLT_250X1500_S_S3121.813SQTB1X1/8SPCRSPCR442.000SLOTTED_SPRING_PIN1/4X2_SSASM-DOWELASM-DOWEL542.000SPRING_PINHR1-DOWELHR1-DOWEL643.000FIXED-1_3/4YE1-3001_75_FIXED_CONNECTOR1_75_FIXED_CONNECTOR744.000FHSC_SCREW1/2X4_SSFHSC_SCREWFHSC_SCREW824.000TOE PLATE CLIPBRP-38BRP-38944.250HEXBOLT1/2-13x4_1/4_SSHEX-BOLT_500X4250_S_SHEX-BOLT_500X4250_S_S10125.000HEXBOLT3/8-16x5_SSHEX-BOLT_375X5000_S_SHEX-BOLT_375X5000_S_S1166.500ANG4X3/8CLP-1CLP-11228.000SQBR1_1/4X1_1/4HR1_SQBR_3HR1_SQBR_31328.000SQBR1_1/4X1_1/4HR2_SQBR_3HR2_SQBR_31428.000SQBR1_1/4X1_1/4HR3_SQBR_2HR3_SQBR_215111.946ANG3X1/4P_ANG_3P_ANG_316111.946ANG3X1/4P_ANG_4P_ANG_417120.380TOE4X5/8X1/8HR3_TOE_1HR3_TOE_118121.750SQTB1_3/4X1/4HR2_SQTB_2HR2_SQTB_219123.000SQTB2X1/8HR3_SQTB_1HR3_SQTB_120123.000SQTB2X1/8HR3_SQTB_2HR3_SQTB_221629.500SQTB2X1/8HR1_SQTB_2HR1_SQTB_222136.531TOE4X5/8X1/8HR1_TOE_1HR1_TOE_123141.563CH8X2_3/16X1/4P_CH_2P_CH_224141.781SQTB2X1/8HR1_SQTB_1HR1_SQTB_125141.781SQTB2X1/8HR1_SQTB_3HR1_SQTB_326147.625TOE4X5/8X1/8HR2_TOE_1HR2_TOE_127148.000CH8X2_3/16X1/4P_CH_1P_CH_128148.000CH8X2_3/16X1/4P_CH_3P_CH_329148.000GRATE 1 1/2 X 37 1/2GP-1GP-130149.875SQTB2X1/8HR2_SQTB_1HR2_SQTB_131149.875SQTB2X1/8HR2_SQTB_4HR2_SQTB_432251.370SQTB1_3/4X1/4HR3_SQTB_4HR3_SQTB_433251.375SQTB1_3/4X1/4HR1_SQTB_4HR1_SQTB_434251.375SQTB1_3/4X1/4HR2_SQTB_5HR2_SQTB_535158.500SQTB3X1/4P_SQTB_1P_SQTB_136158.500SQTB3X1/4P_SQTB_2P_SQTB_237166.761ANG4X3/8P_ANG_1P_ANG_138166.761ANG4X3/8P_ANG_2P_ANG_239175.000CH8X2_3/16X1/4P_CH_4P_CH_440175.000CH8X2_3/16X1/4P_CH_5P_CH_54172FLW1/2SSFLAT-WASHER_500_S_SFLAT-WASHER_500_S_S428FLW1/4SSFLAT-WASHER_250_S_SFLAT-WASHER_250_S_S4324FLW3/8SSFLAT-WASHER_375_S_SFLAT-WASHER_375_S_S4438HEXNUT1/2-13SSHEX-NUT_500_S_SHEX-NUT_500_S_S458HEXNUT1/4-20SSHEX-NUT_250_S_SHEX-NUT_250_S_S4612HEXNUT3/8-16SSHEX-NUT_375_S_SHEX-NUT_375_S_S4710RIVET1/4NYLON-YEASM-RIVETASM-RIVET4810RIVET1/4NYLON-YEHR1-RIVETHR1-RIVET4914RIVET1/4NYLON-YEHR2-RIVETHR2-RIVET5010RIVET1/4NYLON-YEHR3-RIVETHR3-RIVET511HR-1HR-1521HR-2HR-2531HR-3HR-3541PLATFORMPLATFORM55

DESCRIPTIONDATEBYREV.

---00SHEET 1 OF 11" = 1"5/64± 0.5°ANG:

PLATFORM-THRU_LEFT-EXIT 10-22-14± .010.XXX:± .030.XX:

RESTING PLATFORMTHRU ACCESS LEFT EXIT± 1/16X/Y:

AECTOLERANCES

PLAN VIEW

ELEVATION VIEW

FRP MOLDED GRATING:MOLDED GRATING BY BEDFORD REINFORCED PLASTICS 1 1/2" SQ. MESH x 1-1/2" THICK, PREMIUM GRADE THERMOSETTING POLYESTER RESIN AND THERMALLY CURED. NON SKID GRITTED WALKING SURFACE, COLOR TO BE GREEN. MEETS ASTM E-84, CLASS 1, FLAME SPREAD RATING LESS THAN 25 AND SELF EXTINGUISHING REQUIREMENTS OF ASTM D-365.

GRATING NOT SHOWN

ISOMETRIC VIEW

THIS DRAWING IS THE CONFIDENTIAL PROPERTY OF BEDFORD REINFORCED PLASTICS, INC.,AND MUST NOT BE MADE PUBLIC OR COPIED, AND IS SUBJECT TO RETURN ON DEMAND. ALL RIGHTS OF INVENTION OR DESIGN ARE RESERVED.

SCALE REV.

DRAWN

CHECKED

APPROVED

DATE:

TITLE

JOB

DRAWING NO.

REF.

3' 6"

3' 8"

6' 7-3/8"

2' 11-5/8"

4'

1-1/2" GRATING THICKNESS

6'

4' REF

6' MAXCOLUMN TO

COLUMN

30.0°

5' MAX

4' MAX

QTY.LENGTHDESCRIPTIONPART NAMEDRAWING NUMBERITEM

80.000CM-15CM-15CM-151321.500HEXBOLT1/2-13x1_1/2_SSHEX-BOLT_500X1500_S_SHEX-BOLT_500X1500_S_S281.500HEXBOLT1/4-20x1_1/2_SSHEX-BOLT_250X1500_S_SHEX-BOLT_250X1500_S_S342.000SLOTTED_SPRING_PIN1/4X2_SSASM-DOWELASM-DOWEL442.000SPRING_PINHR1-DOWELHR1-DOWEL5122.000SQTB1X1/8SPCRSPCR643.000FIXED-1_3/4YE1-3001_75_FIXED_CONNECTOR1_75_FIXED_CONNECTOR744.000FHSC_SCREW1/2X4_SSFHSC_SCREWFHSC_SCREW824.000TOE PLATE CLIPBRP-38BRP-38944.250HEXBOLT1/2-13x4_1/4_SSHEX-BOLT_500X4250_S_SHEX-BOLT_500X4250_S_S10125.000HEXBOLT3/8-16x5_SSHEX-BOLT_375X5000_S_SHEX-BOLT_375X5000_S_S1166.500ANG4X3/8CLP-1CLP-11228.000SQBR1_1/4X1_1/4HR1_SQBR_3HR1_SQBR_31328.000SQBR1_1/4X1_1/4HR2_SQBR_3HR2_SQBR_31428.000SQBR1_1/4X1_1/4HR3_SQBR_2HR3_SQBR_215111.946ANG3X1/4P_ANG_3P_ANG_316111.946ANG3X1/4P_ANG_4P_ANG_417120.380TOE4X5/8X1/8HR3_TOE_1HR3_TOE_118121.750SQTB1_3/4X1/4HR2_SQTB_2HR2_SQTB_219123.000SQTB2X1/8HR3_SQTB_1HR3_SQTB_120123.000SQTB2X1/8HR3_SQTB_2HR3_SQTB_221629.500SQTB2X1/8HR1_SQTB_2HR1_SQTB_222136.531TOE4X5/8X1/8HR1_TOE_1HR1_TOE_123141.563CH8X2_3/16X1/4P_CH_2P_CH_224141.781SQTB2X1/8HR1_SQTB_1HR1_SQTB_125141.781SQTB2X1/8HR1_SQTB_3HR1_SQTB_326147.625TOE4X5/8X1/8HR2_TOE_1HR2_TOE_127148.000CH8X2_3/16X1/4P_CH_1P_CH_128148.000CH8X2_3/16X1/4P_CH_3P_CH_329148.000GRATE 1 1/2 X 37 1/2GP-1GP-130149.875SQTB2X1/8HR2_SQTB_1HR2_SQTB_131149.875SQTB2X1/8HR2_SQTB_4HR2_SQTB_432251.370SQTB1_3/4X1/4HR3_SQTB_4HR3_SQTB_433251.375SQTB1_3/4X1/4HR1_SQTB_4HR1_SQTB_434251.375SQTB1_3/4X1/4HR2_SQTB_5HR2_SQTB_535158.500SQTB3X1/4P_SQTB_1P_SQTB_136158.500SQTB3X1/4P_SQTB_2P_SQTB_237166.761ANG4X3/8P_ANG_1P_ANG_138166.761ANG4X3/8P_ANG_2P_ANG_239175.000CH8X2_3/16X1/4P_CH_4P_CH_440175.000CH8X2_3/16X1/4P_CH_5P_CH_54176FLW1/2SSFLAT-WASHER_500_S_SFLAT-WASHER_500_S_S428FLW1/4SSFLAT-WASHER_250_S_SFLAT-WASHER_250_S_S4324FLW3/8SSFLAT-WASHER_375_S_SFLAT-WASHER_375_S_S4440HEXNUT1/2-13SSHEX-NUT_500_S_SHEX-NUT_500_S_S458HEXNUT1/4-20SSHEX-NUT_250_S_SHEX-NUT_250_S_S4612HEXNUT3/8-16SSHEX-NUT_375_S_SHEX-NUT_375_S_S4710RIVET1/4NYLON-YEASM-RIVETASM-RIVET4810RIVET1/4NYLON-YEHR1-RIVETHR1-RIVET4914RIVET1/4NYLON-YEHR2-RIVETHR2-RIVET5010RIVET1/4NYLON-YEHR3-RIVETHR3-RIVET511HR-1HR-1521HR-2HR-2531HR-3HR-3541PLATFORMPLATFORM55

DESCRIPTIONDATEBYREV.

---00SHEET 1 OF 11" = 1"5/64± 0.5°ANG:

PLATFORM-THRU_RIGHT-EXIT 10-22-14± .010.XXX:± .030.XX:

RESTING PLATFORMTHRU ACCESS RIGHT EXIT± 1/16X/Y:

AECTOLERANCES

PLAN VIEW

ELEVATION VIEW

FRP MOLDED GRATING:MOLDED GRATING BY BEDFORD REINFORCED PLASTICS 1 1/2" SQ. MESH x 1-1/2" THICK, PREMIUM GRADE THERMOSETTING POLYESTER RESIN AND THERMALLY CURED. NON SKID GRITTED WALKING SURFACE, COLOR TO BE GREEN. MEETS ASTM E-84, CLASS 1, FLAME SPREAD RATING LESS THAN 25 AND SELF EXTINGUISHING REQUIREMENTS OF ASTM D-365.

GRATING NOT SHOWN

ISOMETRIC VIEW

THIS DRAWING IS THE CONFIDENTIAL PROPERTY OF BEDFORD REINFORCED PLASTICS, INC.,AND MUST NOT BE MADE PUBLIC OR COPIED, AND IS SUBJECT TO RETURN ON DEMAND. ALL RIGHTS OF INVENTION OR DESIGN ARE RESERVED.

SCALE REV.

DRAWN

CHECKED

APPROVED

DATE:

TITLE

JOB

DRAWING NO.

REF.