Galvanising of ChemSet™ Anchor Studs meets Australian Standards. The head should have a diameter of not less than 1. Contract Connections Ltd is the leader in the specialised field of STUDWELDING in all forms. D. govt. Improved push specimen, according to Hicks and Smith (2014) 2. Shear walls. The rib in the center of Tray-dec sheets makes installing double studs easy on smaller beams. These tests imply the shear strength would be about 65% of the tensile strength. 1:2014 Structural steel welding – – Part 1: Welding of steel structures - Australian/New Zealand Standards – published on 2 December 2014. Engine Studs. BC1: 2023 Design Guide for the Use of Alternative Structural Steel to Eurocode 3TRB hosted a webinar on Thursday, June 22, 2023 from 2:00 PM to 3:30 PM Eastern that discussed recent research efforts into the behavior of headed shear studs in composite bridge girders and address recent design provision changes. We supply. 6, 8. 0 m), and the embodied carbon of the materials. The stud is held in the welding gun and an arc is. Besides equipment, shear stud connectors can be produced based on the standard of EN ISO 13918; AWS D1. The computation of the shear strength of a single connector is addressed in SCM I3. Weld them to the framing to help it adhere to the concrete and resist sheer forces. 5 in. The shear stud was Ø10 × 70 (GB/T 10433) . Orthogonal. (7/8″)22mm. 3. 37 31. Unlimited 0; Custom; Menu Items; Free shipping over $100; All. SHEAR AND BENDING i. Menu. 1. The first application was to secure wood decking on submarines, but was quickly adopted and used on battleships. [11] AS 4100:1998 Steel structures – Australian Standards – publish– ed on 5 June 1998 – Reconfirmed in 2005 – Including amendment no 1. The push-out and composite beam tests were used in studies on stud shear connectors to evaluate shear capacities. The plywood sheathing helps to transfer. We can produce the shear stud shear connector based on the GB/T10433; EN ISO 13918; AWS D1. Get a Quote. shear studs with the composite beams containing ‘/2 in. The modeling results are in good agreement with the. 1 b, the studs are uniformly placed along the longitudinal direction of the deck, and the continuous post-cast strip is left to accommodate the studs instead of the hole. 9 (b) and (c)). 9), the steel studs or bars crossing the shear plane resist only tension and the shear strength of the connection is attributedIn the works of Pavlović et al. Therefore, the minimum length after weld (LAW) should be 95mm for the TR60+ or R51 and 115mm for TR80+. 98. Tension and shear properties are based on 0. Punching shear failure is a major problem encountered in the design of reinforced concrete flat slabs. They are widely used in steel building, bridges, etc. In infill walls, the shear connectors lie. Design guides are proposed to predict the shear strength and load–slip behavior of the J-hook connectors embedded in. Varma Publication: Structural Journal Volume: 119 Issue: 6 Appears on pages(s): 129-140 Keywords: concrete breakout; finite element (FE); haunch; shear stud; tensile DOI: 10. Core Construction Weld Studs: S3L Shear Connectors. Abstract. Presenters provided an overview of recent updates to the shear stud fatigue provisions and new provisions for. 2. 85 This paper reviews international practice for the design of shear connectors for secondary beams and highlights the lack of consistency in the various clauses accounting for stud location, stud. 12) and varies between 0. Shipping Weights. B. I assumed this to be due to the previous owner (s) over torquing them and stressing the metal over time. Shear walls. Slabs, pile caps, footings, raft foundations, etc. NATIONWIDE COVERAGE Auckland (Head Office) 560 Rosebank Road, Avondale Phone 09 828 2777 Fax 09 828 2424 Albany Unit 4, 4 William Pickering DriveL. NEW D6L A706 Stud Weldable Rebar. Finite element analysis using ABAQUS was carried out to simulate the force–deformation response of shear stud. Main Hall, Les Munro Centre King Street East Te Kuiti New Zealand 3910. Headed anchor studs, ¾ in. The dimensions of the specimens were 480 × 450 × 450 mm. The concrete, steel, and shear studs are all represented by the eight-node linear reduction integral solid elements (C3D8R) of ABAQUS, which has three translational degrees of freedom in each element and can be. from $117. The cover width is just 600mm, creating lightweight sheets that. The finite element model was verified by. When designing shear wall end posts where holdown anchors are installed, it is common to use posts made from multiple plies of 2x studs (e. 2. Buy online, in-store or Click & Collect in 1 hour from over 45 stores. Despite the efficiency of using the headed studs for Hot-Rolled Steel beams and steel plate girders, the. below the top of the concrete. Shear Stud Lion tersedia dalam berbagai ukuran dan jenis koneksi untuk memenuhi kebutuhan konstruksi yang berbeda. The feasibility of two types of high-strength bolts in rehabilitation for old. Size: 13, 16, 19, 22 and 25 mm diameter in various lengths. Get reviews and contact details for each business including phone number, postcode, opening hours and photos. Figure 1 Typical shear stud connectors shear connector SD UF threaded stud with flange (pitch) PS — unthreaded stud US — Short-cycle drawn arc stud welding stud with internal thread IS —. The butt weld was realised following LMB C558 under powder – process 121 and the studs were welded on that weld following LMB H505 stud. Nelson shear studs are essential in transferring force between the steel beams and the concrete slab. Refer to NZS 3404. The area moment of inertia of the steel beam has the greatest influence on the flexural capacity of the SCCB. NZS 3604:2011 is free to download from Download the PDF. Select the element face to which the pattern will be perpendicular. 00. A Coach Screw is a heavy duty screw which has a square or hexagonal head and an externally threaded cylindrical shaft that tapers to a point at the tip. Compared with clustered studs, the distribution of. ZAKI is theAssistant Structural Engineerat HERA. 5 d sc from the bottom of the concrete deck, where d sc is the diameter of the shear connector. The spot welder will burn through the metal deck and attach. 7m, 3. These fasteners secure beams and resist loading between concrete and steel components in a composite construction. The welding of shear studs in steel-concrete composite construction is governed by standards that ensure the appropriate weld quality is achieved (SCNZ, 2020b). [11] AS 4100:1998 Steel structures – Australian Standards – publish– ed on 5 June 1998 – Reconfirmed in 2005 – Including amendment no 1. J P Industries. Brand: Indian or Imported. It provides methods and details that are used to design many NZ timber-framed houses and small buildings, including many residential decks. 5. Shear studs refer to the installation of steel pins or grommets, that extend out of the top flange of a steel support beam. The theoretical unit weight shear connector M19*100 is 0. The ability of shear studs to transfer vertical tension forces from a fractured girder to intact bridge components was investigated. I am wondering to find a source for designing double-head shear studs in Australia. Zhou. HST Stud anchor 10 / 2012 135 values according ETAG 001, Annex C. Welded Shear Stud. 04 $2. 6 Cast-in Anchor NZS 3101:2006, Clause 17. through the deck to the structural tee. Nelson shear. NZ Designers Designer New Arrivals. ComFlor is manufactured in New Zealand by Steel & Tube under license from Tata Steel UK. The system depends mainly on repairing the damaged concrete and the addition of vertical studs with different arrangements through holes drilled in the plates. Duplicate an Existing Shear Stud When setting up to create new shear studs, it is easier and faster to start from an existing configuration that is closest to your requirements and modify only some of the parameters to obtain your. Longitudinal shear strength values have been derived from the standard testing procedures carried out to AS/NZS 2327 appendix H to calculate the bending check. Nelson Stud Welding - NZ Nelson Stud Welding has been operating in New Zealand for 40 years, with operating bases in Auckland, Wellington and Christchurch. Design shear resistance of headed studs embedded in solid slabs and encasements. The most typical headed shear connectors have a 3/4-inch diameter shaft and a 1-1/4-inch diameter head. 8 and 10. 0m, 3. Made to order lengths areUDC 624. The design shear ca-pacity of particleboard shear walls shall be in accordance 2003 INTERNATIONAL BUILDING CODE® 467 WOOD TABLE 2306. CD Stud Capabilities & Capacities. Steel & Tube offers a metal fastening solution for every application and our products are commonly used in the construction, manufacturing, general engineering and fabrication sectors. A composite beam can be highly resistant, stiff and lightweight in design, benefitting from the combined strengths of concrete and steel. 7-mm diameter and 352 MPa for the 15. 2, 0. The procedure to determine the key characteristics of the wedge block is established. It delivers faster starts, less torque, and eliminates the need for pre-drilling, which means more. Abstract: The use of headed stud shear reinforcement has been widely accepted as an effective strategy to improve the punching shear resisting performance of reinforced concrete (RC) flat plates. The head should have a diameter of not less than 1. 173 80 13. Dowload our Walls Handbook SRP Ltd Wall Handbook PDF DownloadWhen installing shear studs, the length after weld should extend at least 35mm above the top of the main rib of the deck profile. High country baby whistle studs. The app offers optimized steel deck design solutions based on cost or labor for a given shear and uplift. 1. Single studs are shown in Figure 6. 1 Shear stud connectors As discussed in the previous sections, the. gen@masterspec. from $109. The value of γM2 must be provided manually when different than 1. 8 carbon steel to get the most out of adhesive tensile capacities and provide higher shear capacities than regular Grade 4. The combination of a concrete-filled steel tube (CFST) column and reinforced concrete (RC) beam produces a composite structural system that affords good structural performance, functionality, and workability. diameter stud. 1. 2018. I have designed shear studs based on ACI 421. The shear stud used is the same type as used in conventional steel or concrete composite beams. Practical implementations3. Its profile has been specially designed with trough stiffeners and side laps positioned to guarantee centrally placed shear studs. We will weld the studs to the beams through the deck sheet. Standard length is 3. 2. Design aid - Table of design properties for individual metric hexagonal bolts including stress area, yield strength, ultimate strength, shear resistance, tensile resistance, interaction between shear and tension, bearing resistance, punching shear resistance. Whether Insulation Fasteners, Threaded CD studs or Headed Concrete Anchor Shear Connectors, we can assist with advice, product selection and supply of machines, sales. Figure 10. The shear stud was Ø10 × 70 (GB/T 10433) . 2: 2003 Australian/New Zealand Standard – Structural Stud Welding; BS 5400: 2005 Steel, Concrete and Composite Bridges; GB/T 10433: 2002 Cheese Head Studs for Arc Stud. Quantity Per Pack: Varies as per size. Slab reinforcing can consist of either welded wire reinforcing or reinforcing bars, and in certain situations the slab can be steel fi ber reinforced per ASTM C1116. Install them using conventional welding or specialized stud welders; a ferrule is included for use with stud welders. Additional mechanical anchors or shear studs, acting together with the through-bolts, may also be used to resist the vertical force from the diagonal strut especially if the tube inner surface is smooth. DOI: 10. 12 19 x 100 Shear Stud, 19 x 100 HSC, CS 6060 019 100 0. Stainless Steel ChemSet™ Anchor Studs are high corrosion resistant AISI 316 (A4). 19 MPa∼200 MPa to establish a reliable database. Available in Mild steel and High Tensile in various Threads, and in Black, Zinc plated, and Stainless steel. of stud shear reinforcement s depends on the level of the shear stress (Eq. 02 19 x 115 Shear Stud, 19 x 115 HSC, CS 6060 019 115 0. Associates has been supplying and servicing customers throughout New York, New Jersey, Pennsylvania, into New England and Canada with stud welding supplies, equipment, and general support since 1972. and so much more. 0% and 68. 07. AS/NZS 1552. Open An Account with Us. SHEAR STUD definition: a stud that transfers shear stress between metal and concrete in composite structural. 7-0. Other advantages that can be obtained by using headed studDOI: 10. 52 19 x 95 Shear Stud, 19 x 95 HSC, CS 6060 019 095 0. 8, 6. and weak position groups had one stud per specimen half. Refer to Figure 1. Stud work comes with inherent risks, and Red Cedar Steel is dedicated to minimizing those risks. 9. 4, and 0. Ask. OSHA Standard 1926. Click Steel tab Fabrication Elements panel (Shear Studs). Assembled steel-composite bridges generally use stud connectors to achieve the connection between the deck slab and the steel main girders. ABAQUS is used to establish a detailed 3D finite element (FE) model and analyze the behavior of push-out specimens. 1:1999, Residential timber-framed construction in the preparation of this guide and complies with NZS 3604:2011 Timber Framed Buildings which is an Acceptable Solution to NZBC Clause 1 Structure The requirements set out in the New Zealand Building CodeThe shear studs have a diameter of 19 mm and a height of 100 mm. 0. 3. 7m - 5. 1. The punching shear perimeter is considered as the. $3,870. Engineered with optional closed ends, ComFlor® 60 provides excellent acoustic performance and fire protection, with no requirement for filler blocks. Description. 6m, other sizes available on request (2. 7m, 3. The effect of haunches in the deck, stud length, number of studs, and arrangement of the studs was evaluated in static and dynamic tests. The experimental program consists of eight specimens with the same. 23. Christchurch, New Zealand Phone: +643 366 700 Fax: +643 564 2758 Rollformers 2000 Ltd PO Box 204-352 Highbrook Manukau 2161 New Zealand Phone +64 9 274 4898 Fax +64 9 274 0451 info@rollerformers. 9 (a)) and the failure sections (Fig. 3 8. The primary stud welding standard, AS 1554. 9 c). June 22, 2023. 0 kN Stainless Steel Type 17-12g x 35mm 2. ReidBar™ is manufactured in both New Zealand and Australia and satisfies the requirements of the standard for “Steel Reinforcing Materials, AS/NZS4671:2001”. 75bmt Stud 493 76mm x 0. See examples of SHEAR STUD used in a sentence. Maximum resistances from the experimental tests are compared with the predictions of EC 4 and results from other. The information contained in this document is current as at October 2022. Minimum number of shear studs required to develop the controlling moment (anywhere along a span) are distributed uniformly between the point of maximum bending moment and the adjacent points of zero moment (on each side of the point. 3 Studs in loadbearing walls, 1. Nelson headed shear connectors deliver code specified shear strength values as used in composite construction, securing concrete to steel structural components. Strong-Drive® SDWS Timber Screw Limit States-Reference Characteristic Load Values (N) for Timber-to-Timber Connections1,2,3,4,5 Model Screw Length (mm) Timber. 014. Quality: As per ISO 13918. Nelson shear connectors meet requirements of the following codes: . Best used in steel wall assemblies where the demands of vertical movement between the veneer and the. ), why this about 5% difference? Please see the following: The main reason for the difference is tolerance of the shear connector, normally the manufacturer produces as per the. Concerns have been raised about the effectiveness of the resulting composite action between the precast panels and the. Here is a list of the tags available from the family library included with Revit (C:ProgramDataAutodeskRVT ####Libraries<Location>Annotations): Folder. shear connectors should extend at least 35mm above the top of the main trapezoidal section. 97S) and a calculation model of stud shear bearing capacity considering the effects of stud diameter and height, concrete strength, stud welding technique, transverse reinforcement and steel beam type on stud shear bearing capacity. Shear studs are used in stud welding to secure steel framed buildings to create a shear connection between the steel and the concrete. The weld collar remained almost intact on the web plate and the. To place shear studs. As the plate is directly fastened to the stud, all load is transferred efficiently. 37 31. Facebook; Twitter; Facebook; Whatsapp; Pinterest; Buy Journal. 27kgs in the table, but it is only 0. P. Testing on studs4. (2) Shear connectors are typically used in composite steel construction for holding concrete slabs to steel members to resist shear forces and increase shear loading. The perfect accessory for every day, shop our extensive range. Boh Runga. Shear Connector Design software [10] AS/NZS 1554. 75 16 H4L 165 101-053-019 direction of the shear force and some spacing restrictions High-shear load areas in concrete construction. Shear walls are typically light-framed or braced wooden walls with thin shear-resisting panels on the framing surface, or are reinforced concrete walls, reinforced masonry walls, or steel plates. The damage of the stud and concrete may have a great influence on the shear fatigue performance of the interface. Drawn Arc Threaded and Unthreaded Studs are recommended for fastening applications where threads are needed for the full fastener length. from $3. Some sizes available in split threads for example UNF on one end and UNC on the other. The ComFlor® composite floor decks range continues to set new standards in construction technology across New Zealand and is one of the market leaders in composite steel flooring systems. metal deck. The evaluation procedure is an extension of the existing evaluation steps in the NZ Transport Agency’s Bridge manual (3rd edition). or two shear studs (¾-in. We trademarked this new/old breed as the Shire® breed, from our strong Organic German Mutton & Hair Wiltshire base. 1 has a series of images of typical shear studs on a steel beam. Normally the shear studs are welded, with a spot welder, after the metal deck is installed over the supporting structural steel. Shear Connector Design software [10] AS/NZS 1554. 22. Stud Welding Shear studs are used in composite construction to secure concrete to steel structural components. Free edges in the 71. NZ Transport Agency Private Bag 6995, Wellington 6141, New Zealand Telephone 64 4 894 5400; facsimile 64 4 894 6100 [email protected] studs with the composite beams containing ‘/2 in. Reduces the amount of reinforcement needed. Headed Concrete anchors are available for welding to flat surfaces, inside angles and outside angles. 7. Stainless Steel ChemSet™ Anchor Studs are high corrosion resistant AISI 316 (A4). 10:00 AM. They are easier to fix on-site and can prove to be a more cost-effective solution. FERO Thermal Tie™ - Slotted Stud (Type II) Masonry Connector transfers lateral load from the tie through a plate, which transfers the load to the stud backing. Lower shear strength of the concrete-concrete interface will cause the interface cracking of the push-out specimen, which occurs before the stud. The most widely used form of shear connector is the headed stud, or shear stud. P S = p s A s. Page 1- showing 12 results for shear studs. In the drawing area, select the steel elements to connect. 5. The results indicate that the shear stiffness of the group studs is highly correlated with the flexural behavior of the SCCB. Add to Cart. The double-headed LinkStud shear studs are welded to carrier / spacer rails to allow them to be located correctly and to be supported by the top flexural reinforcement. 6, 5. It uses the latest versions of local standards AS/NZS 2327 and NZS 3404 in combination with the only nailed shear connector in the market provided with. (FOR STRUCTURES IN NEW ZEALAND ONLY) A4. 6. When specifying or installing any Ecoply plywood products visit or call 0800 326 759 to ensure you have current specification material and any relevant technical notes. Your Cart. This will align studs so orthogonal (at right angles) wall studs meet to form internal corners. ASTM A108 Shear Studs, Shear Stud Connector, Shear Connector Shear Stud Bolt, popularly-priced Welding stud shear connector/nelson stud bolts, steel bolts. Studs can be installed diagonally or in a straight line on either. This is meant to simulate an equivalent point load acting on a stud embedded in concrete due to the shear stress distribution along the stud height. Shear Connector Studs allow for greater flexibility in the design of buildings and structures, as they can connect concrete slabs to steel beams of different sizes and shapes. diameter stud is more than double the area of a ½-in. 85 13 x 100 Shear Stud, 13 x 100 HSC, CS 6060 013 100 0. 250mm. Double + Gap. For Series 2, three different moment-to-shear ratios were applied to the connections (0. 2 Comparison be tween the I2 and 3/4in. The shear stud and steel beam are formed as the same part to simulate the connection between two components in the FE model. Headed stud is well-known shear connector, which is usually welded to the steel beam of the composite beams to connect the steel beam to the concrete slab to achieve the required composite action and limits the interface slip. This research aimed to assess the reliability of stirrups in resisting punching shear through studying the effect of different parameters. The steel stud model behaves like linear elastic material with Young’s modulus E= 210000 MPa up to the yield stress f y =350 MPa. 47% higher than those of the studs with 14 mm and 18 mm diameters, respectively. Table 2. Fastenal is the largest fastener distributor in North America. Shear studs are provided such that the following conditions are met: Shear studs are provided at a maximum spacing of eight times the slab thickness or 36 in (whichever is lesser). 4 x diameter of shear stud = 7. The most common diameters of steel shear studs used in composite bridge construction are 19. 5×6-in post). Shear studs. Select an existing feature definition from the drop-down list to use for object being placed. Available in Mild steel and High Tensile in various Threads, and in Black, Zinc plated, and Stainless steel. UK Contracts; Export Contracts; Car Parks. Shear Studs. Date: 1/1/2021. 2005). Positioning. Stick Out by Stud Diameter. Lengths for. 2003 Australian/New Zealand Standard – Structural Stud Welding • BS 5400: 2005 Steel, Concrete, and Composite BridgesMeanwhile, based on the regression analysis, the calculation model of shear stiffness was established, while the effect of the height of studs on shear stiffness was ignored. e. Technical Support on all Contract Connections. Check the spacing of shear connectors Since each flute is 12 in. Both shear and tension are transferred through anchor bolts to resist design forces such as uplift due to wind at the top of a column or wall or vertical gravity loads on ledgers supporting joists or trusses (see Figure 1). The shear connection needs to be verified atStandards New Zealand: Wellington. in diameter, are specified and noted to be a minimum of 1. Stud welding is also known as drawn arc stud welding, or arc welding for short. ) If you would like to use the price section of our 2x4. Designed to interconnect the concrete slab to the load bearing steel beams. From these studies, a coefficient for the shear resistance of stud (∝3) is derived and will be considered for studs in unfavorable position in the new procedure for the calculation of shear. Some sizes available in split threads for example UNF on one end and UNC on the other. 34. Need drag strut/collector to get shear to solid portion. STRIP BRACE 0. Save. Capacity nZ' Net Section Tension Z NT ' Row Tear-out Z RT ' Group Tear-out Z GT ' s row = 4" s row = 5" 1 9562 7706 7875 6418 7260These stud anchors strengthen the parts of buildings where steel framing connects to concrete. A shearing force is applied to the top of the rectangle while the bottom is held in place. 2:00 PM – 3:30 PMShear Studs:Our Playlist:stud welding, shear studs are used to secure framed buildings by creating a shear connection between steel and concrete. 099 150 14. 3 of the American Wood Council’s (AWC’s) National Design Specification ® (NDS ® ) for Wood Construction includes provisions for built-up. Stud Welding & Fastening. co. We providing a diverse product range, which includes numerous varieties of nuts, bolts, washers, screws, pins, nails, rivets, anchors and other speciality products. Precast columns & beam connections. For BS 5950, Fu is not used by the program. Find wheel nuts and wheel stud and nut sets for sale. It is also important to know that Advance Steel works with valid combinations. Check out our shear earrings selection for the very best in unique or custom, handmade pieces from our dangle & drop earrings shops. E. We stock and supply all forms of fasteners and machines for all applications. Get Latest Price. Get a Quote. 5. What is Stud Welding. 7 19 x 90 Shear Stud, 19 x 90 HSC, CS 6060 019 090 0. This paper presents thirty-two push tests to investigate the behaviour of demountable shear connectors in profiled composite slabs. 27kgs in the table, but it is only 0. For Series 1, one connection did not have shear reinforcement, while the other two connections had ribbed-deformed GFRP shear studs with headed ends at different radial spacing (120 and 80 mm). 2:2010 and so comply with the provisions of the New Zealand Building Code through clause 2. Located in branches across New Zealand, Konnect Fastening Systems are here to support your business with expert advice and premium products Spacing 4 times diameter between studs in plane perpendicular to the shear force and 6 times diameter in the direction of the shear force is generally adequate to develop full stud capacity 9. The second detail is the more common New Zealand edge detail as it gives a robust slab edge anchorage than the third detail. 7 H4L 205 101-053-010 studs in a plane perpendicular to the shear force and six H 15. 1016/J. Because of the inter connection or composite construction resists shear loading between the concrete and steel beams. In this paper, to explore the shear capacity of stud shear connectors in steel-high strength concrete composite structures, 100 test data sets were gathered from previous studies, covering the compressive strength of concrete in the range of 61. 2:2003. Representing the days of shearing sheep with a good set of old hand shears Size:Height - 10mmThickness- 2. 2) Dimensions (mm) d1. Shear strength of bolts. (OC spacing means measuring the distance between the centers of two adjacent studs . 1; AS/NZ 1554. Minimum Flange Thickness to prevent localised bending of the flange at ultimate loading and minimise the chance of weld blow-through = 0. Stud welding 2. There are 8 columns between the shear wall and the next wall. South Univ. The system consists of double-headed studs welded to flat rails, positioned around the column head or base. In the connector, the studs are arranged group-by-group at multiple locations on the top surface of steel members. Located in branches across New. The composite action of our steel flooring and concrete produces a floor which is very strong and light in weight. 4: Fv,Rd = αv ⋅ fub ⋅ A / γM2. 55bmt Stud with Hem 489 51mm x 0. Hollo-Bolt – an expansion bolt for Structural Hollow Sections (SHS/HSS) with “blind connections,” when you only have access to one side of the connection. Increases loading capacity in bridges, buildings, etc. Wt Each (kg) Bag Qty Bag Wt (kg)Double ended Studs. Need to provide prescriptive seismic reinforcement everywhere. In. This is in addition to the other equation and/or table values specified by Code. Shear connectors are required on the top flange of steel composite bridge girders to provide the necessary shear transfer between the steel girder and composite slab that is required for composite action. Cent. 1; ASTM standard etc. Stud shear stress measurements for specimens having a Class A flange friction surface (cleaned mill-scale surface) experienced stud demands that were nearly 66% lower than those estimated by the AASHTO provisions which neglect friction effects. The studs have threads on one end and a small disc-shaped head on the other, while the ferrules are short cylindrical sleeves that fit over the studs to. concrete slab and the steel beam to ensure effective composite action. The most widely used form of shear connector is the headed stud, or shear stud. In the table, As has been taken as equal to At . 75bmt Stud 491 64mm x 0. A new approach to the design of stud shear connectors in composite bridge beams (Research Report R82). Eliminates column capitals. ). Ancon DSDQ. The yield stress of the sheeting is 350 MPa and the tensile strength of the studs is. ends, giving a cross-sectional area ratio of 9:1. Finish Plain.