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JHM

Joist Hanger for Masonry

The JHM and JHMI range of joist hangers can be used to connect solid sawn joists, trusses and engineered joists to masonry walls or steel beams.

CE Marking
CE Marking
EPD
EPD

Product Details

Images

SPEC JHMSK Skewable Option
SPEC JHMSK Top View
Timber in the flange of the ‘I section steel beam is required when hanger depth is shallower than steel depth. Timber to finish flush with outer edges of ‘I’ section’s flanges.
Hanger to be tight against the face of the supporting member. No gap allowed.
Fasteners to be installed through the inner obround slot in the hanger top flange.

Features

Material

  • Pre-galvanised mild steel

Benefits

  • Built-in inspection slot at the base of the hanger to aid inspection from the ground
  • Top flange provides widest area in contact with masonry support allowing superior performance.
  • Embossments on JHM stiffen top flange and holes allow improved mortar keying.
  • JHM side flange on deeper hangers is much higher than traditional style, providing greatly enhanced resistance to joist rotation.

Technical Data

Product Dimensions

Dimensions

ReferenceConnector Dimensions
Timber size[mm]Product Dimensions[mm]Joist holesOther
Width[mm]HeightA[mm]B[mm]C[mm]D[mm]E[mm]F[mm]t[mm]RoundWeight[kg]
Ø4
JHM100/3835100.03810064647575220.384
JHM125/3835125.03812564647575220.435
JHM150/3835150.03814064647575220.465
JHM175/3835175.03816564647575220.517
JHM200/3835200.03819064647575220.568
JHM225/3835225.03821564647575220.62
JHM250/3835250.03824064647575220.671
JHM150/4444150.04414064647575220.471
JHM175/4444175.04416564647575220.523
JHM200/4444200.04419064647575220.574
JHM225/4444225.04421564647575220.626
JHM100/4747100.04710064647575220.393
JHM125/4747125.04712564647575220.444
JHM150/4747150.04714064647575220.475
JHM175/4747175.04716564647575220.526
JHM200/4747200.04719064647575220.577
JHM225/4747225.04721564647575220.629
JHM250/4747250.04724064647575220.68
JHM100/5050100.05010064647575220.397
JHM125/5050125.05012564647575220.447
JHM150/5050150.05014064647575220.478
JHM175/5050175.05016564647575220.529
JHM200/5050200.05019064647575220.581
JHM225/5050225.05021564647575220.632
JHM250/5050250.05024064647575220.684
JHM125/6363125.06312564647575220.46
JHM150/6363150.06314064647575220.491
JHM175/6363175.06316564647575220.542
JHM200/6363200.06319064647575220.594
JHM225/6363225.06321564647575220.645
JHM250/6363250.06324064647575220.697
JHM100/752x35 or 75100.07510064647575220.422
JHM125/752x35 or 75125.07512564647575220.472
JHM150/752x35 or 75150.07514064647575220.503
JHM175/752x35 or 75175.07516564647575220.555
JHM200/752x35 or 75200.07519064647575220.606
JHM225/752x35 or 75225.07521564647575220.658
JHM250/752x35 or 75250.07524064647575220.709
JHM100/912x44 or 91100.09110064647575220.438
JHM125/912x44 or 91125.09112564647575220.489
JHM150/912x44 or 91150.09114064647575220.52
JHM175/912x44 or 91175.09116564647575220.571
JHM200/912x44 or 91200.09119064647575220.623
JHM225/912x44 or 91225.09121564647575220.674
JHM250/912x44 or 91250.09124064647575220.726
JHM125/1252x63125.012512564647575220.523
JHM225/1252x63225.012521564647575220.708
JHM250/1252x63250.012524064647575220.76
JHM300/1252x63300.012529064647575220.863
JHM175/1503x50 or 2x75175.015016564647575220.56
JHM225/1503x50 or 2x75225.015021564647575220.734
JHM250/1503x50 or 2x75250.015024064647575220.786
JHM300/1503x50 or 2x75300.015029064647575220.888

Product Performance - Masonry

ReferenceHanger capacity
Standard
Number of FastenersCharacteristic Capacities[kN]Safe Working Loads[kN]
JoistR₂,ₖR₁,ₖR₂,ₛWₗ,ₛₕₒᵣₜ ₜₑᵣₘR1,SWL
QtyType2.8N/mm² Solid AAC3.5N/mm² Solid LAC7.0N/mm² Solid DAC2.8N/mm² Solid AAC3.5N/mm² Solid LAC7.0N/mm² Solid DAC
JHM2.0N3.75x301.810.512.82015.26.410

Product Performance - Masonry & Skewed

ReferenceHanger capacity
Skewed
Safe Working Loads[kN]Number of Fasteners
R₂,ₛWₗ,ₛₕₒᵣₜ ₜₑᵣₘR1,SWLJoist
2.8N/mm² Solid AAC3.5N/mm² Solid LAC7.0N/mm² Solid DACQtyType
Spec JHMSK15.15.25.24.03.75x30

1. Maximum skew 45º

Product Performance - Shot fired to Steel Girder

ReferenceHanger capacity
Shot Fired to Steels
Safe Working Loads[kN]Number of Fasteners
R₁,ₛWₗ,ₗₒₙg ₜₑᵣₘJoistHeader
QtyTypeQtyType
JHM5.12.0N3.75x304.0Shot fire pins

1.The above Safe Working Loads are based upon product tests using four No. Hilti 12mm X-EDNI steel pins fired through the top flange material, onto a minimum 4mm thick steel plate. Other pins may be used provided similar structural performance is verified by the pin manufacturer. Pin Head size must be sufficient to prevent pull through during loading.

2.The designer must ensure that the steel support member will support the imposed loads.

3.Install shot-fired pins in accordance with manufacturer’s instructions

Product Performance - Mechanically Fixed to Steel Beam

ReferenceHanger capacity
Mechanically Fixed to SteelsShot Fired to Steels
Safe Working LoadsCharacteristic Load[kN]Number of FastenersNumber of Fasteners
R₁,ₛWₗ, ₗₒₙg ₜₑᵣₘR₁,ₖHeaderJoist
QtyTypeQtyType
JHM10.8192.0XLQ114B12242.0N3.75x30
  • The designer / engineer must ensure that the steel support can take the imposed loads
  • Suitable for Steel I-beams and Hollow Sections upto 12.5mm thick
  • Timber is required in the web of steel I-beam when the hanger depth is less than the steel depth.  Timber must finish flush with outer edges of steel I-beam
Fastener Reference

Length

[mm]

Hex Head 

[in]

Washer Diameter

[mm]

Shank Diameter

[mm]

Suitable Material Thickness

[mm]

Recommended Install Speed

[rpm]

XLQ114B1224 32 5/16" 16 5.5 3.5 - 12.5 1400

 

Installation

Installation

Installation

Standard Masonry Installation

  • Use all specified fasteners. See "General Notes".
  • Set hanger back flange tight against block wall when built to desired level, then continue with additional courses to complete wall height. Joist should be tight into back of hanger when possible. Maximum gap permitted is 6mm.
  • MINIMUM 3 COURSES OF SOLID BLOCK (675MM MASONRY) REQUIRED ABOVE HANGER WITH MORTAR FULLY CURED BEFORE APPLYING LOAD.
  • Do not stack blocks or heavy loads on the joists during construction unless the joists have additional support to take the full load of the blocks vertically and horizontally.

Fixed to Steel Beams

  • The JHM range can be mechanically fixed to steel beams of
    thicknesses up to 12.5mm. 
  • Timber is required in the web of the ‘I’ section steel beam when
    the hanger depth is less than the steel depth.
  • Timber must be flush with the outer edges of the ‘I’ section steel
    beam.
  • The shot-fired pins must be installed by a qualified person in accordance with the manufacturer’s installation requirements.

Options

Options

  • Return configuration provides additional support by wrapping around three sides of the block. Designate "return" and length of return dimensions when ordering.
  • JHM, JHMR OR JHMS HANGERS DO NOT SATISFY THE REQUIREMENTS FOR LATERAL RESTRAINT TYPE HANGERS UNLESS STRAPS ARE FITTED.
  • Straddle configuration provides two hangers connected across top of support enabling exact alignment on both sides of supporting wall. Designate "straddle" and length of straddle dimensions when ordering.
  • Other widths and heights available to order. Contact Simpson Strong-Tie® for details.
  • SPEC JHM’s up to 61mm width can be skewed from 5 to 45 deg. See skewed hanger load table.

Certification

Declaration of Performance (DoP)

Show history

Environmental Product Declarations (EPD)

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Contact

Simpson Strong-Tie U.K.

Simpson Strong-Tie

Cardinal Point, Winchester Road
Tamworth
Staffordshire
B78 3HG
United Kingdom