• Structural Bolt Tightening Procedure

    other erection and installation procedures must be. High strength bolt preload calculation, bolt tightening torque values (Eurocode 3 and EN1090-2) metric EC3 EN1090-2 bolt preloading torque Open calculation sheet Preview. Slip resistance - bolt tightening techniques Three methods of control of the preloading force are used Turn of the nut method (the most common, cheap and reliable method) the nut is first snug-tight and then rotated by additional 1/3, 1/2 or 3/4 turn (depending on the bolt length) Direct tension indicator tightening. Besides the tightening of the nut bolts 5, the robot control system 17 records all necessary, user defined parameter to provide a user defined documentation of the tightening process of each nut bolt 5. These connections are not subject to tension loads. 1) Establishment of Hydrotesting Procedure, Reinstatement Leak Test Procedure, Bolt Tightening Procedure & Valve Leak Test Procedure and Chemical Cleaning Packages. REQUIREMENTS. Use caution when working at elevated heights and around unit openings. When using hex head structural bolts for slip-critical joints, turn-of-nut will generally give you a more uniform installation than you get with other torque control methods. BOLT TORQUE GUIDE Tightening Moving automated machinery may cause death or injury. VSL systems have a well-earned reputation for their quality, reliability, and durability – and have been used throughout the world since 1956 to build, repair, and strengthen buildings, tanks, transportation and special structures. Note: Do not tighten this bolt and nut yet. DO NOT OVERRTIGHTEN THIS BOLT. Installing the new bolts is a piece of cake. of high-strength structural bolts, nuts and washers. APPARATUS 4. Jul 23, 2015 · In the most recent edition of the Canadian Highway Bridge Design Code, CAN/CSA-S6-14, the cs and ks coefficients that are used to calculate the slip-resistance of bolted connections have been modified, resulting in a superior slip-resistance calculation with the Turn-of-Nut method than that obtained with the coefficients in the earlier edition. BS EN 1090-2 gives requirements for four methods of tightening preloaded bolts. tightening procedure is given for specific application. The basic principles. FastenMaster. If all bolts achieve the proper tightening specification without stripping out, continue with Step 12 of this procedure. GBstandards. Heat exchanger designs and maintenance; and. The treatment is minimally invasive at an affordable price. Then fully tighten structural screws. The Golden Anniversary of the Mid-Atlantic. Clean the pipe following the pipe cleaning procedure explained in Note #2. ERECTION PROCEDURES. 8 Coarse Pitch 82 Flat Round Washers 83 Coronet Load Indicators 84-85 UNIFIED HIGH TENSILE HEXAGON BOLTS 13 86-87 Unified High Tensile Hexagon Bolts 86. After full cure, lift hull (& keel) clear of ground and re-torque to ultimate target. 2 SUBMITTALS ***** NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only the submittals required for the project. Experimental tests on 2400 structural bolts of different diameters and grip lengths – bolt tightening sensitivities to develop a new tightening procedure for structural bolts in friction. Make sure the locking channel tabs are seated on the channel’s grooves. More than one cycle through the bolt pattern may be required to achieve the required snug-tight condition. epoxy anchor an anchor such as threaded-rod or rebar, which is retained in a pre-drilled hole by means of a chemical adhesive. The purpose of this Primer is to provide the structural engineer with the information necessary to select suitable high-strength bolts, specify the methods of their installation and inspection, and to design. It is essential that the channel nut rotates into this position. We use only domestically melted and rolled material and produce the bolts in St. Keep the clamps. They can be threaded onto a new or existing bolt, stud, threaded rod or shaft. Step 4: Tighten oil pan nuts to 105 in-lb (12 Nm). 0 Bolted Connections Loose or missing bolts are to be noted. Tighten bolts in connections identified as slip-critical using Direct Tension Indicators. The bolts shall be tightened by torque control, using the specified lubricant, in. Insert end of the first bar halfway into the coupler to the center pin. ) suggested tightening torque (ft. Ivey's is capable of complex Steel Fabrication and Erection/Heavy Rigging on contracts nationwide offering a full range of services that include structural and miscellaneous steel fabrication and erection, advanced welding services, heavy rigging services, and bridge crane erection and maintenance. Jan 31, 2014 · In 1979 ITH has introduced the method as the leading method to tighten and loosen bolt connections in many industrial areas. Bent anchor bolts are embedded in concrete and used to support structural steel columns, light poles, highway sign structures, bridge rail, equipment, and many other applications. tightening operation is also quite small when a torque control is used. It is important for the Designer to appreciate the features and characteristics of the main methods employed to tighten bolts. Torque Tightening Values for Structural Steel Bolts Below is a list of the recommended tightening torques for 12. Tighten the fastener to reduce the gap to 0. 8 Coarse Pitch 82 Flat Round Washers 83 Coronet Load Indicators 84-85 UNIFIED HIGH TENSILE HEXAGON BOLTS 13 86-87 Unified High Tensile Hexagon Bolts 86. The scope of the present chapter is limited to bolted connections used in tension and compression members as well as in hangers. and less and 105 ksi for sizes over 1. *Research Council On Structural Connections, "Specification for Structural Joints Using ASTM or A490 Bolts. Tighten bolts using 5/16 inch Allen wrench until snug (do not to over tighten). Bolts shall be checked by calibrated torque wrench as per recommended tightening torque in the applied project standard. Install the supplied structural rivets using the pneumatic rivet gun (p/n W-AK175ACH) or equivalent (Fig. tightening by bolt torque control. An example approach would be to apply a centered thrust load while tightening the bolts using the alternating star pattern method. Calibrated wrench tightening may be used provided that the installation procedures are calibrated daily (for each bolt diameter, length, grade, and surface condition). Installation Procedure: Attach the eye-nuts on the threads of the bolt, tighten permanently (Figure 3). Quantifiable -Minimum tension value when installed to the snug tight condition means every bolt will have a known snug value. Tighten the oil pan closeout cover bolt to 9 N·m (80 lb in). 0 Erection Any alignment errors, significant lack of contact between bearing surfaces, or other erection errors should be noted. Most of these bolts are. Page 6, Picture B. The Standard for DTIs in North America is the ASTM International series of standards and the specific designation for testing and manufacturing DTIs is ASTM F959: Standard Specification for Compressible-Washer Type Direct Tension Indicators for Use with Structural Fasteners. Developing good bolting procedures can be a monumental task if you do not establish some criteria. \ Each bolt had a hole drilled in the center of the head and a hole drilled in the center of the shank. Tighten bolts in connections identified as slip-critical using Direct Tension Indicators. Repeat procedure for second clamp. These bolts feature a splined end which, when properly installed with a special wrench, should shear off when the target pretension is reached (See Figure 2). So what are the different types of assembly hardware? Well, for starters, assembly bolts may be designated as shop bolts or field bolts. When attaching horizontal braces to 10' uprights, use top and bottom sets of holes. Skidmore-Wilhelm Bolt Tension Calibrators let you build the inspection into your selected bolt tightening procedure. A ring gasket is placed between the flange faces and bolts (or studs and nuts) are tightened. Tightening done with properly calibrated wrenches, by turnofnut method or by use of direct tension indicators (bolts or washers). The use of high-strength friction-grip bolts 1 Scope 1. One washer shall be placed under the nut or the head of the bolt, whichever is to be rotated during the tightening operation. 4 (3) Load Indicating Bolts 5 Tightening by use of a load indicating bolt system is permitted provided it can be 6 demonstrated by an accurate direct measurement procedure that the bolt is tightened 7 in accordance with Table 440-1. Provide tightening procedures for mast. m (17 lb ft). Please note that this chart is only a guideline for structural bolt tightening. • After both the high speed and low speed couplings have been aligned, tighten the motor hold down bolts to the. SPECIAL INSPECTION. and material database. The HV assembly is more sensitive to over-tightening and requires more control on site. Mark each member with a number indicating its location in assembly sequence, its weight and its match marks to identify adjacent member and fit. holes and two smaller holes for fastening to the beam. It is shown that at 1/2 turn of the nut the bolts develop minimum tension. Nevertheless in the 1954 specification of the Research Council on Riveted and Bolted. Structural Steel 05120 - 4 A. Space the bolts out to match the panel spacing. DESCRIPTION Furnish and install high-strength bolts for structural connections. *Check your local building codes to determine structural mounting requirements for Post. 4 The tightening procedure is the same whether the preload washer is used on a stud or with a bolt 2-5 Screws. Disconnect power at fuse or circuit breaker before installing or servicing. Bolt Torques Tightening Procedure. This way you can visually check the angle. The Golden Anniversary of the Mid-Atlantic. Mohd Hafiz menyenaraikan 7 pekerjaan pada profil mereka. Controlling tension by the part turn of nut method is primarily a strain control procedure and the desired tension in the holding down bolt can be obtained with accuracy. Tighten Tighten the bolt. Quantifiable -Minimum tension value when installed to the snug tight condition means every bolt will have a known snug value. Put the slide plate on the structural support member and center it on the centerline of the pipe. The American Association of Railroads (AAR), faced with the problem of tightening bolts in remote areas without power tools, conducted a large. 9 to EN 14399. 8TB are in essence the. 20 for non plated steel fasteners and K=0. Due to the tension in the bolt, the interface between the plies (steel members in a joint) cannot move relative to each other because of the friction resistance. with tightening procedures or torque values. Tightening done with properly calibrated wrenches, by turnofnut method or by use of direct tension indicators (bolts or washers). tightening procedure is given for specific application. The cylinder head bolts on 1999-2006 Chrysler/Jeep 4. 6 bolts are. • Tighten the Class 8 nut while holding the lock-nut with an appropriate thin spanner. Be sure to check with the Steel Structures Technology Center at www. such that an understanding of available and under-development techniques could be obtained. A325s have a heavy hex head, a full body diameter, and are normally short in overall length since they are connecting steel to steel. It is important for the Designer to appreciate the features and characteristics of the main methods employed to tighten bolts. Feb 26, 2019 · The bolt head or nut is first tightened—in a normal crosshatch sequence if there are more than two—to a prescribed torque value; then, again starting with the first bolt, to a second, higher value. are tightened using a Torque-To- Angle procedure commonly referred to as TTA. Clean the pipe following the pipe cleaning procedure explained in Note #2. Feature; Measurement of preload induced in fasteners Accurate tightening of fasteners within 1% of induced load. Apr 09, 2015 · Dome Structure Bolt Tightening. Any defects? (eg Tilted bolts / holes enlarged by torch cutting) What is the remedy action (Attached report)? Y/N Embedment length and arrangement of holding down bolts. Damage should be repaired with an approved paint/material as soon as it occurs. " * Research Council On Structural Connections. Through Mr. Alternately, the AISC Hollow Structural Sections Connections Manual recommends an effective width of 2L with a maximum of 5 inches. in addition, the bevel used on the keyway shall. Support the other end of the pipe using the pipe stand. \ Each bolt had a hole drilled in the center of the head and a hole drilled in the center of the shank. The chair is now ready for use. A325s have a heavy hex head, a full body diameter, and are normally short in overall length since they are connecting steel to steel. Some of the misunderstanding is a. The reason for these instructions is to give you a general guide to follow. Damage should be repaired with an approved paint/material as soon as it occurs. Tightening Gear Case Hardware IMPORTANT: To help prevent structural damage caused by loose hardware, tighten gear case hardware as specified. Lihat profil Mohd Hafiz Haji Min di LinkedIn, komuniti profesional yang terbesar di dunia. FrugalPrepper's Garage & Garden Recommended for you. Install and tighten nonhighstrength bolts, except where high- - strength bolts are indicated. The design is such that you put the nut on the bottom below the toilet and use a screw driver on the top. That is, when an average erector fully tightens an ordinary bolt using a podger spanner the bolt is correctly tightened. Finger tighten only at this time. Bolt length is the distance from behind the bolt head to the end of the bolt. the proper belt tension and then tighten the top nuts and the pivot side nuts and bolts. Use, in structural steelwork to BS 449, of bolts to BS 3139:Part 1. The objectives of Demonstration Project No. Bolt tightening is also known as snug-tightening. that BS 2583 is a spanner standard and does not deal with tightening procedures or torque values. The plate can be attached to the work bench by C-clamps when is so required. threads into the beam as the bolt is installed. When tightening the nuts that are on the eyebolts, take care to maintain proper drive alignment. 8TB that the manufacturer’s specified tightening procedure has been followed and that the development of the minimum bolt tension is indicated by the tension indicating device. Procedure for designing riveted joint under eccentric. Tightening. New 200 ksi High-Strength Structural Bolts. Does specifications address storage and handling of bolts? Describe specification requirements. When North American design and construction practices are followed, theSpecification for Structural Joints Using ASTM A325 or A490 Bolts, Approved by the Research Council on Structural Connections, sets the basic rules for their use. Bolt and thread lengths are selected according to design specifications, and connection requirements. Bolt length is the distance from behind the bolt head to the end of the bolt. The purpose of this procedure is to verify that the DTI being tested is capable of indicating the achievement of a specified minimum bolt tension in an ASTM A 325 structural bolt. ERECTION PROCEDURES. twist-off bolts. Bolt tightening inspection. This 2016 edition of the Structural Bolting Handbook is based principally upon the June 2014 edition of the RCSC Specification for Structural Joints Using High-Strength Bolts, cited by the 2010 AISC Specification for Structural Steel Buildings (AISC 360-10). Analysis of Bolt Torquing by Clement Rajendra, PE Progress Energy, Southport, NC 28461 Introduction: During maintenance activities in a power plant environment, the plant engineer is often called upon to make decisions concerning bolts in bolted connections in a variety of situations. Thread the bolt that connects the cinching brackets and hand tighten it to hold the straps in position. For the installation of preloaded bolts, steelwork contractors should employ a certificated bolting coordinator and appropriately trained operatives, in accordance with the requirements of NHSS 20, and the BCSA Standard for Competence in Preloaded Bolting. To adjust the tilt angle, loosen the Pivot Bolt hardware and removing the Support Arm upper hardware attaching the Support Arm to the Strongback. For all except SVT Raptor, tighten to 25 Nm (18 lb. The minimum tension to verify at the anchor bolts are 20kips and 30 kips. Few other things you have to know is that up to 12” NPS pipe outside diameter of the pipe is more than 12” and above 12”, it is same as pipe size. Maximum Recommended Tightening Torques. fasteners shall be installed in properly aligned holes. Torque Curve for 45,000 psi Bolt Stress Torque Required For Standard Nut Torque Required For Superbolt® Torquenut Thread. International Building Code 1704. If the surface is sloping then fit a tapered washers 3. Install the battery cable channel bolt. The purpose of this test is to check the behaviour of the fastener assembly so as to ensure that the required pre-. Describe the personnel, procedures and safety precautions used when unloading iron for various types off jobs. Nevertheless in the 1954 specification of the Research Council on Riveted and Bolted. This way you can visually check the angle. NOTE: This procedure should be followed for wing and center body gear cases. Typically used for wood construction and landscaping. Mohd Hafiz menyenaraikan 7 pekerjaan pada profil mereka. • No Predrilling • Installs with an 18 volt cordless drill • No drill bits or wrenches required • Galvanized. 5 Bolt Tightening Procedures 6 Installation of Primary & Secondary Structural 7 Sheeting Information 8 Wall Insulation & Sheeting 9 Roof Insulation & Sheeting 10 Trim & Accessories 4 6 13 17 22 26 36 40 44 59 Index INDEX. Notes: Values calculated using industry accepted formula T = KDP where T = torque, K = torque coefficient (dimensionless), D = nominal diameter (inches), P = bolt clamp load (lbs). Hand tighten the nuts and check the level of the rail. The cylinder head bolts on 1999-2006 Chrysler/Jeep 4. Install and tighten the remaining bolts for both : main hoop mounting plates. 5 Bolt Tightening After completing alignment and Leveling continue to fastening and Tightening the bolts. Investigation of High-Strength Bolt-Tightening Verification Techniques Abstract The current means and methods of verifying that high-strength bolts have been properly tightened are very laborious and time consuming. tighten all bolts. Disconnect power at fuse or circuit breaker before installing or servicing. bolts come in two grades: ASTM A325 and ASTM 490. When used with the correct assembly and built-in tightening procedures, the recommended bolt load values are independently verified to deliver leak-free joints. The minimum tension to verify at the anchor bolts are 20kips and 30 kips. BOLT TIGHTENING SOLUTIONS No matter what your preference for bolt tightening, Atlas Copco have it covered. This is required to ensure a full-strength fastener. This allows the user to tighten the nut bolts 5 according to a specific pattern or predefined sequence as well as to tighten up one nut bolt 5 after the next in the row. • If any hole in the beam is stripped, it can be repaired by ordering a +1 mm oversize service bolt or stud. structural alignment/tolerance notes: sost-01-11 anchor-bolt`nut`tightening`procedure: 8) 7) 6) 5) 4) 3) 2) 1) be 2" unless otherwise shown. 3b 1 1/8” rocker bolt Tighten to a dry level of 790 lb-ft of torque During your check, if the bolts are loose a detailed inspection of the rocker is important to ensure that no structural damage has occurred. Dome Structure Bolt Tightening. 7) Continue monitoring the sign structure at Snelling and TH 36. QUALITY STANDARDS FOR STRUCTURAL WORKS Part 2 : Structural Steel Works Item* Standards 1 Main member/Partial assembled component 1a Physical dimensions 1) Cross sectional tolerance should meet approved structural steel specifications or approved plan Tolerance for length of structural steel member: 2) ±3mm 3) Tolerance for bolt hole size:. Several factors affect how much tension occurs when a given amount of tightening torque is applied. tightening procedure. Special inspection of the installation and tightening of all HSBs shall be conducted in accordance with the CBC, applicable reference standards (e. C-Engineer Structural by approved be must anchors installed post of Use 1909. High Strength Bolts Structural Fastener Questions & Answers. in addition, the bevel used on the keyway shall. The preload should be 70% of the minimum specified tensile strength of the bolt. The best way to ensure the proper foundation of the fire pump (skid mounted horizontal, end suction, turbine or in line style) is with the assistance of the structural civil engineer. Fully tighten all bolts and nuts. As other bolt calibration procedures ate discussed, it will become. 3 4wd Removal Procedure. [Type text] How to Tighten a Bolt Correctly Data Date 07/04/2015 Page 1 of 14 Allan S Phillips QA/QC Coordinator Abstract The site based SMP construction industry at large, take items manufactured by others, locate two holes that correctly line up fit a bolt through the holes and finally tightening up the bolt. 3 tighten all bolts the maximum possible with 12" to 15" wrench to bed washers and shims and to clean bolt threads, then loosen. In the early 20th century, engineers used analog meters. Technical Plan And Results for Keel Bolt Repair Valiant 40 Hull #249. (Equation 26) DB L Equivalent diameter of torque bearing surfaces (Equation 53) d2 L Effective diameter of internal (nut) threads db L Nominal bolt diameter and externally threaded material. for Expansion Bolts in Structural Steel Connections (Blind-Bolts) (AC437), dated October 2011. threads into the beam as the bolt is installed. With all pre-erection work completed, inspected, and passed by Quality Control, as well as your inventory completed, you are ready to start erecting the P. Some of the misunderstanding is a. Simpson S/HD15B Light Gauge Holdown For Steel - G90 Galvanized HD15 to tighten the 1" anchor bolt. When the Properties box appeared, rename the Part Number to Bolt&Nut and click OK. ” 770-P10 MULTIPLE UNDERGROUND CABLE: The plans call for using Multiple Underground. 2 Area of bolt cross-section. High Strength Bolts Structural Fastener Questions & Answers. The Research Council on Structural Connections says that bolt testing or tension measuring devices should be available at every job site. Torque wrenches are the most commonly used measures for this torque. No need for pliers or special tools. and plain bolts, nuts and washers lightly lubricated prior to installation? If not is an acceptable lubricant being applied before tightening? (See Art. Shoberg's efforts it is now gaining Wide acceptance in other industries. Upside the chair, and repeat step 2 procedure to secure the right side frame (A1). Tighten 3/8-16 hardware to 236 in-lbs. Thread Repair. Graduate Theses and Dissertations Iowa State University Capstones, Theses and Dissertations 2018 Tightening the large diameter anchor bolts of sign,. Traditional British practice has been to hand tighten ordinary bolts using podger spanners. Inspection procedure. 8 zinc plated finish bolts. in addition, the bevel used on the keyway shall. Use great care in this procedure as it can be dangerous if the procedure is not completed as described,. An installation cycle is defined as a procedure which produces a positive torque (increases preload) and then subsequently a negative torque (decreases preload) on a bolt. What is RotaBolt? When a standard bolt is tightened, the tension achieved is completely unknown, RotaBolt load indicating fasteners are measuring devices and highly accurate indicators of clamping force or tension. SCOPE This method statement identifies the basic structure of the Tightening & torque of high, ordinary strength bolts works used for the successful completion of the structural steel erection works, by using the FSI Procedure stage by stages will be followed. a t 3 e q u a l s p a c e s diameter of 1’3" type 5 footing diameter of type 5. This tool makes the job easier, faster and of course more accurate, since each rundown is monitored by a transducerized tool. required procedure for tightening structural bolts for many Through Mr. • Set stand in an upright position, ensuring that the hole on the top edge of the panels line up sufficiently to allow hex head bolts to pass through. is amended by the addition of the following: All welding shall be undertaken by a company certified in Division 1 or Division. Tighten the locknuts of hub first, then those of the center member to approximately ½ the stated torque value. Tightening Torque Guide for Grade 5 & 8 Hex Cap Screws This table is based on IFI 5th Edition Technical Data N-12/N-16, using Equation (1) and a torque coefficient, K=0. ) Remove remaining shrink wrap from handle bars. Torque all nuts to 85 lb-ft 12. Use a carpenter’s square to align the corner. 8 Coarse Pitch 82 Flat Round Washers 83 Coronet Load Indicators 84-85 UNIFIED HIGH TENSILE HEXAGON BOLTS 13 86-87 Unified High Tensile Hexagon Bolts 86. Note ‐ Bolt Tightening Structural Rack: The connections for our structural rack are bearing/shear type connections. When used with the correct assembly and built-in tightening procedures, the recommended bolt load values are independently verified to deliver leak-free joints. Structural Steel Design, Fabrication, and Construction sensitive to tightening procedures • A490 bolts require Structural Steel Design, Fabrication, and. TURN-OF-NUT BOLTING METHOD AISC & RCSC Turn-of-Nut (Part Turn) Note: As with every bolt pretensioning method, Turn-of-Nut may only be performed after all steel plies in a connection have been drawn into firm contact, i. 1—Specifications and approved by the Research Council on Structural Connections. Note: All bolts are “Grade 5” (#) = Quantity Supplied Hub Cover LED Light Kit EN561X3675 Or Lens (below) EN022X2222 [3 mm] 3/32” Aluminum Crimp (2) EN823X6955 [3 mm] 1/8” Cable Clamp Zinc. It is the sum of the thicknesses of all the parts being joined exclusive of washers. standard structural bolts. Safely lower. turn-of-nut installation tECHniCal Data sHEEt nuCor fastEnEr Turn-of-Nut Installation is one of four installation methods recognized by the Research Council on Structural Connections, RCSC, for installing Structural Bolts. and, according to the Technical Reference Specification, the pre-tightening ("snugging") of the bolts was done using a torque wrench as the tightening wrench on the nut (turned element) and an ordinary hand wrench on the bolt head (static element). Identify the basic components, tools, equipment, welding and safety precautions used in structural steel erection. Field Procedure for 8’ Reflector Antenna pole mount rests on the pipe clamp U-bolt. February 8, 2017. Oct 09, 2015 · Hi! Welcome to my blog. Jan 06, 2016 · The connected frame will be slightly lifted by two cranes (25-tonnes) into position and bolts tightened. Bolt-tightening Handbook The SKF Group The SKF Group is an international industrial corporation owned by SKF Sweden AB. ANCHOR BOLT GROUTING GUIDE ANCHOR BOLT GROUTING GUIDE This guide addresses proper procedures for the anchoring of embedments (bolts, threaded rod, rebar) into concrete. This dimension is the grip length of the bolted joint. This is the only thing you have to know when you differentiate pipe and tube. installation procedure is: A. Failure to do so will result in inadequate bolt pretension and loose connections. 3 tighten all bolts the maximum possible with 12" to 15" wrench to bed washers and shims and to clean bolt threads, then loosen. Saman Fernando from the Centre for Sustainable Infrastructure, Swinburne University of Technology. A final criss-cross sequence will be performed using the following procedure. The first factor is the bolt's diameter. Feb 26, 2019 · The bolt head or nut is first tightened—in a normal crosshatch sequence if there are more than two—to a prescribed torque value; then, again starting with the first bolt, to a second, higher value. As an alternate layout, the anchor bolts could be arranged on two sides of a rectangular column (see Figure 4). Investigation of High-Strength Bolt-Tightening Verification Techniques Abstract The current means and methods of verifying that high-strength bolts have been properly tightened are very laborious and time consuming. to the prescribed torque to bed washers and shims and clean bolt threads. Make sure bracket is held down tightly against truck bed rail before tightening. Install oil filter and drain plug. 6 bolts are shown in the table on the following page. the end of the bolt after tightening then a longer bolt should be used. Prepared April 1993 Updated April 2009. Does specifications address storage and handling of bolts? Describe specification requirements. Structural Joints(4)a table of equivalent torques is listed as a guide to proper bolt tensions. Figure 3 STEP 3 Attach the two Clevis Plates (13) to the end of the Hitch Side Bars using 3/8” x 2-1/4” Hex Head Bolts (9) and 3/8” Lock Nuts (5). The HV assembly is more sensitive to over-tightening and requires more control on site. Seshu Adluri. It’s important to constantly stress the correct cylinder base nut tightening procedure. INSTALLATION AND INSPECTION OF HIGH STRENGTH BOLTS IN THE BUILDING CONSTRUCTION INDUSTRY While high strength bolts are one of the most important elements of the structural system of modern steel frame buildings and other structures, their installation is frequently misunderstood. Figure 3 STEP 3 Attach the two Clevis Plates (13) to the end of the Hitch Side Bars using 3/8” x 2-1/4” Hex Head Bolts (9) and 3/8” Lock Nuts (5). Hold bar in place and hand-tighten all bolts. They are the first fasteners to provide a means for accurate, independent inspection of an assembled bolt for preload, thereby enhancing the structural integrity and reliability of both the bolt and the assembly. Remove the transmission jack. Here are just a few of the benefits of using the system for this condition. s9505-am-gyd-010 revision 2. Quantifiable -Minimum tension value when installed to the snug tight condition means every bolt will have a known snug value. formed steel structural members in which the thickness of. Torque the two right side dropout pinch-bolts to 19 in-lb (215 N-cm). It also allows an additional bolt assembly type of property class 10. 8TB that the manufacturer’s specified tightening procedure has been followed and that the development of the minimum bolt tension is indicated by the tension indicating device. If equipped, install the skid plate and the bolts. Tapping in the wooden caps (F) to cover bolts head using rubber mallet. c “Anchor Bolt Tightening”. the end of the bolt after tightening then a longer bolt should be used. Structural Steel Bolt Tightening Procedures Posted on November 15, 2018 by Fattana Standard asme b16 5 s bolt tightening and target china anchor bolt for blind connection to structural steel china customized high strength ford flex head bolts ad302 tightening of bolts tension control bolts turn of the nut method turnasure. Disassembly(Reverse The Procedure Below For Assembly) 124. bolt clockwise to allow the channel nut to lock into position. 5 mm terminal on the slightly shorter wire is for. bolt lengths over 4 diameters shall be 1/. 4 The tightening procedure is the same whether the preload washer is used on a stud or with a bolt 2-5 Screws. I need a very simple answer. TENSION: The force generated in the bolt to. is amended by the addition of the following: All welding shall be undertaken by a company certified in Division 1 or Division. All anchor bolts should be held in place with a template or similar means, so that they will remain plumb and in the correct location during placing of the concrete. " * Research Council On Structural Connections. Re: Tightening Torque of High-Strength Bolts 05/08/2010 1:47 PM With all due respect, the use of a Skidmore-Wilhelm still forces one to predict, guess and hope what the final pre-load of any individual fastener will be it's been torqued. enclosed a copy of the latest edition of the Structural Bolting Handbook for your reference. Since the approval of the first high-strength bolt specifications by the Research Council on Riveted and Bolted Structural Joints (RCRBSJ) in 1949 there have been.