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PA/HPA Purlin Anchors

PA/HPA

Holdowns and Tension Ties

This product's information may differ depending on the category of use. You are currently viewing details related to Holdowns and Tension Ties. You can also view product information related to the category: Purlin Anchors

PA/HPA purlin anchors offer solutions for CFS to concrete and concrete block connections which satisfy code requirements. The PA's dual embedment line allows installation in concrete or concrete block.

Material

  • PA — 12 gauge; HPA — 10 gauge

Finish

  • Galvanized; PAs available in HDG or ZMAX® coating

Installation

  • Use all specified fasteners; some models have extra fastener holes. See General Notes.
  • Purlin anchor must hook around rebar.
  • Allowable loads are for a horizontal installation into the side of a concrete or masonry wall.
  • Strap may be bent one full cycle. (Bent vertical 90° then bent horizontal.)

Edge Distance: Minimum concrete edge distance is 5". Minimum concrete block left-to-right edge distance is 20".
Concrete Block Wall: The minimum wall specifications are:

A - One # 4 vertical rebar, 32" long, 16" each side of anchor
B - Two courses of grout-filled block above and below the anchor (no cold joints allowed)
C - A horizontal bond beam with two #4 rebars, 40" long, a maximum of two courses above or below the anchor
D - Minimum masonry compressive strength, f'm = 1,500 psi

Options

  • See LTT, HTT and S/LTT, S/DTT tension ties for alternate retrofit solutions

Codes

ASCE 7-10 12.11.2.2.5 states:
... Diaphragm to structural wall anchorage using embedded straps shall be attached to, or hooked around the reinforcing steel or otherwise terminated so as to effectively transfer forces to the reinforcing steel.

Related Links

Wood Construction

Cold-Formed Steel Construction

Corrosion Information

Catalog Pages

Related Literature

Load Tables

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

  1. Loads may not be increased for short-term loading.
  2. For concrete installs, the minimum compressive strength, f'c = 3,000 psi.
  3. Multiply Seismic and Wind ASD load values by 1.4 or 1.6 respectively to obtain LRFD capacities.
  4. In accordance with 2006 and 2009 IBC Section 1613.1, detached one- and two-family dwellings in Seismic Design Category (SDC) C may use "Wind and SDC A&B" allowable loads.
  5. Minimum center-to-center spacing is 3 times the required embedment (Smin = 3 x le) for PA/HPAs acting in tension simultaneously, where le = embedment depth. Standard installation is based on minimum 5" end distance.
  6. Install fasteners symmetrically and with a minimum of 4 of the required fasteners between the embedment line and the first tooling hole. In some cases, not all of the fastener holes will need to be filled.
  7. Per ASCE7-10, 12.11.2.2.2, for diaphragms in structures assigned to SDC C-F, maximum allowable strap tensile capacity shall be no less than 1.4 times the design load. Not applicable (NA) for Wind and SDC A&B designs.
  8. See more information on Simpson Strong-Tie fasteners.

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
HPASee specific model numbers for code listings.
HPA28 ESR-2920 ESR-2523 FL13326
HPA35 ESR-2920 ESR-2523 FL13326
PASee specific model numbers for code listings.
PA18 ESR-2920 ESR-2523 FL13326 FL13904
PA23 ESR-2920 ESR-2523 FL13326 FL13904
PA28 ESR-2920 ESR-2523 FL13326 FL13904
PA35 ESR-2920 ESR-2523 FL13326 FL13904

ESR-2523 is an Index of many of Simpson Strong-Tie Stamped and Welded Cold-formed Steel Products for Wood or Cold-formed Steel Construction

Drawings

Part Orthographic Perspective
HPANone None
HPA28
HPA28 Front View
DWG DXF
HPA28 Left View
DWG DXF
HPA28 Right View
DWG DXF
None
HPA35
HPA35 Front View
DWG DXF
HPA35 Left View
DWG DXF
HPA35 Right View
DWG DXF
None
PANone None
PA18
PA18 Front View
DWG DXF
PA18 Left View
DWG DXF
PA18 Installed: Stud to Foundation Connection - Right View
DWG DXF
PA18 Right View
DWG DXF
PA18 Installed Perspective View - PA & HPA
DWG DXF
PA23
PA23 Front View
DWG DXF
PA23 Left View
DWG DXF
PA18 Installed: Stud to Foundation Connection - Right View
DWG DXF
PA23 Right View
DWG DXF
PA18 Installed Perspective View - PA & HPA
DWG DXF
PA28
PA28 Front View
DWG DXF
PA28 Left View
DWG DXF
PA18 Installed: Stud to Foundation Connection - Right View
DWG DXF
PA28 Right View
DWG DXF
High Wind Resistant Construction Detail D22: Girder/Truss to Masonry/Concrete - HWRC D22 GirderTruss to MasonryConcrete
DWG DXF
High Wind Resistant Construction Detail - HWRC D23 Girder/Truss to Masonry/Concrete
DWG DXF
PA18 Installed Perspective View - PA & HPA
DWG DXF
PA35
PA35 Front View
DWG DXF
PA35 Left View
DWG DXF
PA18 Installed: Stud to Foundation Connection - Right View
DWG DXF
PA35 Right View
DWG DXF
PA18 Installed Perspective View - PA & HPA
DWG DXF