Post on 13-May-2018
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.
Bedford Reinforced Plastics Inc. www.bedfordreinforced.com Page 2
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.
Bedford Reinforced Plastics Inc. www.bedfordreinforced.com Page 3
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.