Headed steel stud anchors shear connectors welded to a steel base and encased in concrete have been the most common method for transferring forces between the steel and concrete materials in composite construction This type of anchor has been investigated by numerous researchers worldwide
A headed anchor bolt is a rod that is heated on one end and then forged into a hex heavy hex or square shape The headed end will be embedded in the concrete foundation while the opposite end is threaded and will project from the concrete A nut will be assembled to the threaded end in order to anchor structural steel building columns light poles bridge rail substation structures
Specifying ASTM A325 or A490 anchor rods Standard ASTM A325 and A490 bolts include defined threaded length and heading require ments and must be special ordered when their lengths exceed 9 189 in This can take up to four months Specify ASTM F1554 anchor rods This standard covers anchor rods with yield strengths of 36 55 and 105 ksi in hooked
HS A Expansion anchor Everyday standard expansion anchor for uncracked concrete Anchor version Benefits HSA HSA F HSA R HSA R2 M6 M20 Fast amp convenient setting behaviour Reliable ETA approved torqueing using impact wrench with torque bar for torque control Small edge and spacing distances High loads Three embedment depths for maximal design
Threaded Rod Hex Bar Key Stock Parallel Keys Threaded Inserts Belts Gears Chain Tamper Proof Screws Thumb Screws Thumb Screw Knobs Pipe Plugs Grease Fittings O Rings O Ring Assortments Rivets Sealing Rings Spiral Pins Stand Offs Bins And Cabinets Drives And Threads Washers Roll Dowel Cotter Pins Accessories Fittings Wire Rope amp Clips Hinges
Easy Install Threaded Anchors for Concrete Install like a stud anchor just thread the anchor a nut and a washer onto the end of a threaded rod drive into a hole and turn the nut to expand the base Also known as rod anchors they re often
anchor rod setting procedures and tolerances The impor tance of the accurate placement of anchor rods cannot be over emphasized This is the one of the key components to safely erecting and accurately plumbing the building The material in this Guide is intended to provide guidelines for engineers and fabricators to design detail and specify
The head on the end of the anchor bolt is part of the round bar providing a structurally sound anchor bolt that is easy to set Headed anchor bolts are available in square hex and heavy hex shapes Portland Bolt can forge heads on anchor bolts through 2 189 diameter in
Anchor Diameter Head Style Working Load Concrete Coating Material Approvals Similar Anchoring Products Concrete Lightweight Concrete Hollow Core Plank Grout filled Concrete Masonry Hollow Concrete Masonry Solid Hollow Unreinforced Masonry Steel Drywall Stud Finished Hex Head Round Acorn Nut Flat Head countersunk Mushroom Head Tie
2015 07 01 nbsp 0183 32 The specification for ASTM F1554 covers straight and bent headed and headless carbon carbon boron alloy or high strength low alloy steel anchor bolts also known as anchor rods The anchor bolts are furnished in three strength grades and in the sizes specified below Grades F1554 Grade 36 Low carbon 36 ksi yield steel anchor bolts
1 1 This specification covers straight bent headed and headless anchor bolts also known as anchor rods made of carbon medium carbon boron alloy or high strength low alloy steel It provides for anchor bolts in three strength grades two thread classes and in the diameters specified in Section 4 The specification also covers all thread rod for use in anchor ing to
Deformed Bar Anchors DBA LENGTH Length is before weld Stud diameters D 1 2″ and below will be approximately 1 8″ shorter after welding 5 8″ and larger will be approximately 3 16″ shorter after welding MATERIAL Low carbon steel ASTM A1064 18 ASTM A496 has been withdrawn Print Dbar Spec Sheet ESR 2823 Dbar LA City Approvals DBAR Mechanical
2018 08 31 nbsp 0183 32 RE Tack weld nut vs headed bolt dhengr Structural 1 Sep 18 20 56 Delagina My old std go to detail was pretty much as Dik suggested a headed bolt or a plain round bar threaded at each end and with a nut and washer on the embedded end Our A B had to be cut to length and then threaded on both ends and a nut and washer added
Anchor Bolt Source provides custom manufactured and stock threaded anchor rods and bent anchor bolts in galvanized or plain finish in various ASTM grades to fit your project requirements
Compare 1 4 x 1 3 4 inch 410 Stainless Steel Hex Washer Head Concrete Anchor 25pc Tapcon 1 4 x 1 3 4 inch 410 Stainless Steel Hex Washer Head Concrete Anchor 25pc 36 And 73 Cents each Add To Cart Free Shipping over 49 Not Sold in Stores Add To Cart Compare 1 4 inch x 1 1 2 Long Size Lag Shield Anchor 1 2 inch Drill Size More Options
Anchor Head Protection The most important section of an anchor that needs adequate corrosion protection is the portion of the anchor exposed to air oxygen This is typically defined as the anchor head which generally consists of a steel bearing plate a hex nut and washer for a bar system or a wedge plate and wedges for a strand system For permanent ground
F1554 anchor bolts can take the form of either headed bolts straight rods or bent anchor bolts The three grades 36 55 and 105 designate the minimum yield strength ksi of the anchor bolt The bolts can be either cut or roll threaded and a weldable grade 55 can be substituted for grade 36 at the supplier s option Color coding on the end – 36 blue 55 yellow and 105 red – helps
Headed Concrete Anchor WELD STUD SPECIFICATIONS WELD STUD PACKAGING WELD STUD WEIGHTS D Diameter L Length SWP Part Pieces Per Box Boxes Per Pallet Pieces Per Pallet Box Weight Pallet Weight 1 000 Piece Weight 1 4 1 1 8 HCA 14 118 2 000 27 54 000 48 lbs 1 296 lbs 22 lbs 1 4 2 11 16 HCA 14 21116 1 000 27 27 000 45 lbs
The system shown below allows the engineer to design an anchor system that can be cast in place and after the concrete sets the anchor can be prestressed The bond breaker provides a free stress length commonly used in post tensioning systems The free stress length helps to prevent load loss and concrete spalling that can eventually lead to corrosion problems or
Anchor Rod Embedment Spacing and Edge Distance OK Min Rquired Anchor Reinft Development Length ratio 0 87 OK Overall ratio Anchor bolt head type Anchor effective cross section area A se 0 606 in 2 Anchor bolt head bearing area A brg in 2 Anchor bolt 1 8 quot 3mm corrosion allowance Select anchor bolt pattern c 1 5 00 s 1 16 00 c 3 5 00 c
Common anchor bolt configurations include a rod that is threaded on both ends with a nut and or anchor plate welded to the embedded end of the anchor bolt Headed anchor bolts can also have an anchor plate welded to the head of the bolt if the head itself does not provide enough pull out resistance Supplementary Testing The following supplemental requirements apply to
2020 05 12 nbsp 0183 32 The design of anchor rods has become complex and cumbersome with the development of the ACI 318 anchoring provisions originally in the Appendix D of the ACI 318 11 and earlier and in the Chapter 17 of the ACI 318 14 and later This document covers the required steps in the process of the design of cast in anchor rods normally encountered in column
THE HEADED BOLT AS AN ANCHORAGE The headed bolt as designed herein is recommended as the most efficient type of anchorage to use for both tension and shear loads Other anchorages which have been used are L bolts J bolts rods with a bolted bearing plate and shear lugs L bolts have been shown to be less effective in resisting
2022 01 18 nbsp 0183 32 Need abbreviation of Headed Anchor Rod Short form to Abbreviate Headed Anchor Rod 1 popular form of Abbreviation for Headed Anchor Rod updated in 2022
For headed anchor bolts with similar mechanical properties see ASTM F1554 Grade 36 Note that most A307 Grade A hex bolts that are readily available in the marketplace will not cross certify to ASTM F1554 Grade 36 For more information on this topic refer to this FAQ ASTM A325 A325 is a structural bolt specification intended for use on steel to steel connections Per
Based on the experimental results 16 and the recommendations of EN 1993 1 8 2006 17 Gresnigt et al 2008 15 proposed a new formulation for the shear strength of anchor rods
A total of 5 headed rods and 1 reference rod has been tested to evaluate their performance 3 TESTING The GFRP anchors were tested in concrete blocks measured 200 215 200 215 200 mm by pullout tensile loading till failure The load was intended to be resisted by the head of the GFRP anchor So debonding tubes were attached to the headed GFRP bars starting from the end
F593 Headed anchor bolts are different from bent anchor bolts or anchor rods because the non threaded end has a forged hex heavy hex or square head The headed end is embedded into concrete foundations to secure structural steel
2020 12 22 nbsp 0183 32 Unlike most anchor bolts headed anchor bolts have a forged head on their unthreaded end It is typically a hex heavy hex or square head The head is embedded into the concrete to secure a variety of constructions including structural columns bridge railing and light poles At Birmingham Fastener we distribute straight with headed anchor bolts in 1 2 2
2002 08 30 nbsp 0183 32 There are three basic alternatives ASTM F1554 covers anchor rods in headed threaded and nutted and hooked configurations with three yield strength levels 36 55 and 105 ksi It is intended that this umbrella specification cover the full range of material needs for anchor rods including galvanized applications