staggered intermittent weld. Fillet weld applications include continuous or intermittent conditions. e. Fillets welds can be made on both the arrow side and opposite side of the components. 8mm per weld where the leg length does not exceed 3/4 plate thickness. false. b. iv Foreword (This Foreword is not a part of ANSI/AWS A2. The length of the fillet weld can cover the complete length of the weld joint, or a specified weld length placed centrally over the length, or it can be intermittent weld lengths. The following images show cosmetic, fillet, and intermittent fillet welds. 1½ in. Proper weld strength for a CJP groove weld is achieved by having complete weld fusion and by using the correct strength filler metal (i. Lightweight fillet weld trajectories can be calculated automatically or manually (user-defined). It’s Intermittent fillet weld because there’s a . . 4. The weld symbol for fillet welds looks like a triangle, as shown in Figure 7. The welding of the longitudinal stiffeners to the plating using intermittent fillet welds could be carried out in a staggered or chain arrangement; Fig. Intermittent welds are to be doubled at the ends of all stiffening members andSkip welds or what some people call intermittent welds are a good tool to use in the right situation. weld face C. LeJeune Road, Miami, FL 33126 AWS A2. left. Double-Fillet Welding Symbol Chain Intermittent Fillet Welding SymbolStaggered Intermittent Fillet Welding Symbol Fillet Weld Size 1/46 3/164 Length Omission of Length indicates that Weld Extends Between Abrupt Changes in Direction or as Dimensioned 5/16 7/16 2-5 2-6 Pitch (Distance Between Centers) of SegmentsThe Fillet Weld tab consists of commands, tabs, and shortcut menus. A right-angle triangle attached to either side of the reference line. Steel tends to return to its normal state when it cools down, but the section will deform if the weld is continuous. Correct welding rod angle & electrode size. SUPPLEMENTARY SYMBOLS Tail Optional) Sequence of Information in the Tail • Process (as per ISO 4063) • Acceptance Level (as per ISO 5817 or ISO 10042)Intermittent fillet welds & corrosion. Root Opening Effective Throat Weld Size Depth of Bevel. Typical intermittent fillet welds: (a) chain intermittent fillet welding; (b) staggered intermittent fillet welding; and (c) the throat thickness of fillet welds [70]. 3-7(c). I don't believe I would like to see such a situation from a productivity or distortion standpoint, but as an inspector, it does meet the requirements. Also, they usually have a weld size to their left, indicating how much weld is needed to attain the required strength. The effective length of fillet weld should NOT be less than. a. 5 welds 10 mm leg lengths, 7mm throat thickness, (b)10 (a)7 3 x 15 (25) length of each weld 15 mm, the distance between each weld 25 mm. in a fillet weld symbol the two legs are assumed. ¾ in. If the weld is designed for shear only, it can consider the eccentricity. One 3-in. When welds are subjected to compressive or tensile or shear force alone, the stress in weld is given by : 3. The intermittent weld symbol is intended to ensure the weld is "strong" enough to transmit the load from one member to another. Welding cannot take its proper place as a fabricating tool unless means are provided for conveying the information fromAn ISO Weld symbol consists of 5 main parts: An Arrow Line. 8. continuous or intermittent fillet or partial penetration welds, provided the requirements of (1) through (4) be-low are met. Fillet weld leg. With stitch welding, these negative effects can be. 2. 3. This will be more common with thicker material when it is a. 4. The size of an unequal leg fillet weld is the shorter leg length of the largest right triangle that can be inscribed within the fillet weld cross section. Stitch-Welding. 3. 1. - Intermittent fillet welds: Lw-min = 4 a and 1. Furthermore, continuous partial penetration butt welds should be used with care in marine or very heavily polluted onshore environments, particularly where capillary action might occur. Spot and Seam Welds. Currently plate "PA" is welded with a continuous 1/2" fillet weld top and bottom for the full length of the plate. Q4. z8⌳ 5x200 (100) indicates an intermittent fillet weld with a leg length of 8 mm, divided up into five 200-mm-long welds, spaced 100 mm (free space between the welds) apart. These welds are portrayed as a set of two numbers to the right of the triangle instead of just one. 11. Note: When one member makes an angle with the other member, greater that 105 degrees, the leg length (size) is of less significance than the effective throat which is the controlling factor for the strength of. Tack welds are small welds that are spaced out along the workpieces. d) weld symbol. The feasibility of intermittent fillet weld at the connection of vertical web stiffener and web plate in steel box girder bridge was studied considering vehicular fatigue loading. Lincoln Arc Welding Foundation, Cleveland, Ohio, 1968. 7 combination of intermittent and continuous fillet welding34I am aware full penetration welds are not calculated. Module 4 – Welding Design Heat Flow Heat Flow with Moving Coordinate System tit 35674 quasi-steady final −θ θ o 4-25 transient 2 1 time wxVt=− Moving with the welding arc in quasi-steady region, the temperature is constant with respect to time. 7. The length of intermittent welds is to be measured over the length of the correctly proportioned fillet. 9. The bottom line is, a continuous fillet weld that has the correct size meets the reuirements of the intermittent fillet weld symbol based on the criteria provided by the A2. Continuous welds may be-accepted in place of intermittent welds. -dimensioning is on the right side of the fillet weld symbol, which show the length of each weld & the pitch. Intermittent Welding Techniques: The first weld you learned is a string bead which is a continuous weld in a straight line. a) Resistance Spot WeldsNo dimension to the right of a fillet weld symbol indicates that the welder may determine the length of the weld. Special attention is paid to. An intermittent fillet weld may be used. 12. Then and only then do we we wrap, and we pay very close attention to notches possibly created by wrapping. 3 is not clear as to what definition of “size” of a fillet weld is being considered… Here’s the words in Clause 2. 4. 4. Where two bars come together at an angle, a gap of at least 3/32-inch (2. 3. 24. 2 inches), and the pitch (6 inches in the below example). If possible, the design should use intermittent welds rather than a continuous run, to reduce the amount of welding. . 5 mm) after welding must be provided to ensure the area is wetted by the molten zinc. Fillet welds. For attaching stiffeners to. 8 mm) or less. standard d. Adding twice the leg length for stops and starts gives 85 mm: use 90 mm. Develop welding procedures e. Understanding Fillet Weld. The unwelds spaces between adjacent weld increments are considered to be maximums. AWS D1. You can create intermittent fillet welds by using pitch, length, and number of bead. At the juncture of the reference line and tail, a circle indicates the fillet welds. Groove. Typical applications. = 1. Lap. butt joint C. The fillet weld is employed for lap, corner and T joints. Project 1—Intermittent Fillet Welds, 2 sheets Project 2—Step Fixture Block, 1 sheet Project 3—Keyed Angle Mount, 1 sheet Project 4—Box Section, 1 sheet Example 1—Storage Tank Platform, 6 sheets Example 2—Stock Pusher Guide, 5 sheets Project 5—Post Base Assembly, 1 sheetTo determine the space between the weld segments for an intermittent fillet weld with the length and pitch dimensions of 4-10, you can follow these steps: 1. Both legs of the fillet weld are of. The note in the tail, "2 places", would indicate there are two identical joints that require the same extent, type, and size of intermittent weld. circumferential weld环缝; 环焊缝. indicates a square butt weld, with 5 mm penetration and a length of 300 mm. Typical Length and Spacing of Intermittent Welds Table and Formula ; Selection and Design of fillet weld sizes by rule-of-thumb; Strength of shielded-arc flush steel welds table. Menu. Edit. 550 N. _2. arrow side square groove with a fillet weld. To solve the problems of low teaching programming efficiency and poor flexibility in robot welding of complex box girder structures, a method of seam trajectory recognition based on laser scanning displacement sensing was proposed for automated guidance of a welding torch in the skip welding of a spatially intermittent welding. g. Hint: The minimum fillet weld thickness is usually chosen depending on the used material and the thickness of the welded parts. W. are two types of intermittent fillet welds, chain and staggered. Using this method of fabrication the construction costs and also the magnitudes of welding residual stresses are lowered when compared to continuous welding ones; Fig. Create intermittent or continuous fillet welds along the length of selected faces or use a groove weld to connect two faces with a solid weld bead. 41 Figure 40. it states that “all craters shall be filled to provide the specified weld size,exceptfor the ends of intermittent fillet welds outside of their. Each of these factors contributes to the formation of undercut, leading to weakened joints and defects in your welds. a. of undercut (depth) for 2 in. 11. The pitch of an intermittent weld is the ______. Weld Size. 2 inches), and the pitch (6 inches in the. In a single V-groove weld, what do you call the sloped surfaces on which the weld metal is applied?Expert Answer. The fillet weld symbol is represented as a triangle. Design-related specifications, such as type, thickness, and length of weld, weld quality, surface treatment, fillerIntermittent fillet welds with the segments directly opposite across the joint are called chain intermittent fillet welds. Intermittent Fillet Welds. 1¼ in. 4. Important note: The methods described below is based on the simple method of calculation of weld stress as identified in BS 5950- clause 6. a. If the segments of intermittent fillet welds are to be staggered in a symmetrical manner on both sides of a joint, the sequence of fillet size, fillet weld symbol, segment-length dimension, multiplication sign and the pitch. Groove weld reinforcement shall comply with Tables 5. 5 m Notes: The steel plate is made to CSA G40. 2. a filet weld in the below example), weld size, length of the weld (e. In some cases intermittent welds are staggered on both sides of the joint. The longitudinal spacing between intermittent fillet welds connecting two or more rolled shapes shall not exceed 24 in [600 mm]. Scarf Fillet Weld: This type of fillet weld is used to join two components that are beveled or chamfered at their edges. weld toe B. cluster weld丛聚焊缝Fig 3 Grove weld in a butt joint transverse to the direction of tensile stress – Source AWS D1. The leg size of the fillet weld is place to the left of the fillet symbol. The definitions provided ensures that goal is met. In a built-up member in which plates are connected by means of intermittent fillet welds: Continuous fillet weld should be provided on each side of the plate for a length at each end equal to at least ¾ of the narrower plate width 6 13. Which piece of metal is to be ground, machined, or cut prior to welding? 7. Meaning welding anything bigger would be total waste with no added benefits. 3. 9 Intermittent fillet welding (staggered/chain) 4. 4 Intermittent Fillet Welds (Minimum. 2 Exception for Intermittent Fillet Welds. Q5. Instead of creating a continuous weld, intermittent fillet welds are spaced apart, leaving gaps between each weld. What intermittent fillet weld dimensions are placed on both sides of the reference line but are not opposite each other? Staggered. Determine the throat thickness (in mm) of a fillet weld of size 5 mm, when the angle between fusion face is 90 degree: Q3. For intermittent welds, a dash separates the length of each portion of the weld and the spacing of the welds (length first, spacing second). 3 Intermittent and zig-zag fillet weld symbol. Notice that the spacing, or pitch, is not the clear space between the welds, but the center-to-center (or end-to-end) distance. (3) Crater Cross Section All craters shall be filled to provide the specified weld size, except for the ends of X X intermittent fillet welds outside of their effective length. common. The specific requirements may vary depending on the application, material, and design considerations. b) The size ofthe deep penetration welds (or precesses other than manual metal arc, has been left to the discretion ofthe deslgner-c) The allowable stresles in welda have been increased to bring them in line with thOle for parent meta) given in IS: 800-1962-. 25% MIN OF THE JOINT SHALL BE WELDED. 1 in. A relatively small depth of material will become molten, and upon cooling, the structural steel and weld metal will act as one continuous part where they are joined. Intermittent Weld. 1. MAX CLEAR SPACING BETWEEN WELDS SHALL NOT EXCEED 12 TIMES THE THINNER OF THE TWO SECTIONS JOINED OR 150 MM (6”) (CSA W59 12. They can be one-sided or two-sided, symmetrical or asymmetrical. Assuming both the intermittent fillet weld and the continuous fillet weld do meet the minimum size requirement, the continuous weld is more cost effective. 2. 1. What is the weld joint that is formed when two parallel members overlap each other? Groove faces. n x l (e) z. For performance purposes and additional enhancements, it is recommended that you use the Weld Bead tool instead of Fillet Bead to insert weld beads. Structural welding is a process by which the parts that are to be connected are heated and fused, with supplementary molten metal at the joint. Double-sided —Creates a symmetrical double-sided weld. Formula to Calculate the Fillet Weld Size. The maximum clear spacing between weld pieces shall be 12t or 200 mm whichever is minimum in case of compressing members. If you’re wondering about the specified length of tack welds on fillet welds, the tack weld length should be 2 inches, or 4 times the material thickness, but usually maximum of a 2-inch. 6 termination of intermittent fillet welding. 194 Welding Print Reading Intermittent Fillet Welds The continuity of an intermittent weld is broken by recurring unwelded spaces, Figure 15-10. Intermittent fillet welds and intermittent partial penetration butt welds should only be used where crevice corrosion is unlikely to occur. When selecting the size of fillet weld for plate or pipe to achieve full strength weld apply the below rules for fillet weld leg length: The minimum size of the Leg length of the fillet shall be 0. The center-to-center distance between intermittent welds is called the ______. ISO 2553:2019(E) Introduction The symbols given in this document can be used on technical drawings for welded components. Intermittent fillet welds are used when the two pieces need to be joined in multiple places along their length. Fillet welds are shown on welding symbols as little right-angle triangles pointing up or down and to the right. These welds are portrayed as a set of two numbers to the right of the triangle instead of just one. If it is not, then the weld size used for design is ¼ the length. Scarf fillet welds are often employed in applications where a smooth transition is needed between the components. Other terms in accordance with fillet welds include: Boxing which refers to the continuation of a fillet weld around a corner of a member. Root Opening Effective Throat Weld Size Depth of Bevel. This weld is used when the joint has two members coming together to form an intersection of. 1. The fillet weld symbol is represented as a triangle. , 2. 3. The definitions provided ensures that goal is met. Example 3: Indication: The weld height is 3, with full welding around. An intermittent weld on both sides of a joint in which the weld increments (lengths) on one side are alternated with respect to those on the other side. The weld is on both sides of the joint. Witness welder performance tests b. Consider the following with regards to intermittent fillet welds. Provide an intermittent 6mm fillet weld on both sides of the web, 90 mm hit and 110 mm miss. When intermittent fillet welding is used by itself, the symbol indicates that increments are located at the ends of the dimensioned. The size of the weld represented in Figure 1. lap joint D. In this article, we will explore various aspects of fillet weld, including its parts, symbols, joint types, and. 4:2007 An American National Standard Approved by the American National Standards Institute March 23, 2007 Study with Quizlet and memorize flashcards containing terms like 1. Staggered intermittent fillet weld: For intermittent welds, a dash separates the length of each portion of the weld and the spacing of the welds (length first, spacing second). When considering fatigue analysis of steels, it is important to note a critical distinction between two broad classes of steels: Class 1. 5. edge joint, 3. Refers to the center-to-center spacing of an intermittent fillet weld. Intermittent fillet welds should not be used in corrosive conditions. increments A fillet weld can be loaded in any direction in shear, compression, or tension. When placing the weld, you can locate the ends of the fillet. Ability to select between move stagger and mirrored stagger for JIS intermittent fillet welds on both sides. By 803056 Date 05-22-2014 14:14. 1 is 1-1/2 inch (38 mm). d) Formule for combination of Itre~les for fillet weld. Fillet welds are one of the most common weld types in the industry. ; Staggered intermittent fillet weld refers to two lines of intermittent welding on a joint. Create intermittent or continuous fillet welds along the length of selected faces or use a groove weld to connect two faces with a solid weld bead. In a weldment assembly, use commands on the Weld tab to create fillet welds, groove welds, and cosmetic welds. The welds are preferably spaced "uniformly" along the length of the joint to minimize distortion, i. For attaching stiffeners to. Welding heats up the element, so the steel expands, and the section is welded in its expanded state. 25 on the left and 4-1 on the right. A fillet weld substitution can often be made for CJP groove welds in tension, such as for bolted moment connections where flange plates are welded to the column (W-shape or HSS col-umns). c. In Welding, welds and feature geometry are represented as quilts with a high level of complexity. You’ll know that it’s an intermittent weld if the measurements are placed beside the fillet weld symbol. The first number as mentioned earlier refers to the length of the weld. A staggered intermittent fillet weld: It is made of two lines of intermittent welding on a joint where the fillet increments / welds that are in one line are staggered in comparison to the other line as shown in figure 10. Two quarter-inch plates will be welded together using a quarter-inch fillet weld. staggered intermittent weld. 지난 번 Weld Joint에 이어서 오늘은 Weld Type을 알아보자. (e) Intermittent fillet welds are permitted but these are usually only economical for limited applications involving the use of manual or semi-automatic processes; in many applications, a full length fillet weld of one size may be placed more economically using a fully or semi-automatic process. Click Applications > Welding. edge joint, 3. In the standard welding system, the _____ line Is used to apply weld symbols and other data. , 1/4 X 1/2". min. The center-to-center distance between intermittent welds is called the _____. Welded both sides: Three intermittent fillet welds with 6 mm leg lengths, the length of each weld 25 mm and the distance between each weld 40 mm. The first number as mentioned earlier refers to the length of the weld. Most of the common weld types in the industry are used when the joint has two members joining together to create an intersection of 90 degrees. 1 INTRODUCTORY CONCEPTS. To avoid the adverse effects of starting or stopping a fillet weld at. 3-30). 1 (3), "Minimum leg size shall meet the specified fillet weld size", as a measurement is implied in the report. ÐÏ à¡± á> þÿ N þÿÿÿþÿÿÿG H I J K L M. On a lap joint, the ____ is. Groove Faces. Explanation: A fillet weld joins two surfaces at an approximate right angle to each other. Calculated Available Area is inclusive of the Area Available in the fillet weld of minimum size, as defined in ASME B31. Special attention is paid to. However, if the size of the fillet weld is not even, designers can use two numbers in the form of, e. 1? Answer: The minimum length of an intermittent fillet weld in AWS D1. 3. For example, if the material thickness is 10 millimeters, you should. Fig. circular weld环形焊缝. of its length. 3. 550 N. Continuous welds will run the full length of the joint, where intermittent welds will only. The software supports ANSI, ISO, GOST, and JIS weld symbol libraries. 4 Staggered intermittent or single sided fillet welding is not to be used in the bottom shell structure of high speed ships. Weld dimensions/ sizes. Adds the symbol for staggered intermittent welds: Specify the weld details in the fields to the right of each Weld symbol button. Intermittent weld with 1/2-inch weld thickness, weld length of 8 inch and a pitch of 12 inch. I believe you are looking for the unwelded spaces between the weld segments. ¾ in. . 4. Weld symbols on the dashed line relates to weld on the far side of the plate. Fillet weld Fillet weld 1 Study with Quizlet and memorize flashcards containing terms like The primary element of any welding symbol is referred to as the, Information appearing below the reference line refers to the, The term _______ refers to the center-to-center spacing of an intermittent fillet weld. Chapter 22 Welding Joint Design and Welding Symbols 36. 25″ fillet weld that is located on the nearest side (or the arrow-side) of the joint. If the segments of intermittent fillet welds are to be staggered in a symmetrical manner on both sides of a joint, the sequence of fillet size, fillet weld symbol, segment-length dimension, multiplication sign and the pitch. High heat can also negatively impact a material's chemical and mechanical properties. Intermittent fillet welds with the segments directly opposite across the joint are called chain intermittent fillet welds. g. closed-chamber fusion weld闭室熔焊. a) increment b) contour c) pitch d) center and more. Additionally, when making intermittent fillet welds or stitch welds, engineers can add length and spacing (L and P) on a welding symbol reference line. 5/16". Intermittent fillet welds can not be less that four times the weld size, not to be less than 1 ½”. For an intermittent weld, 4@12 means 4" of fillet weld at 12" centre to centre of weld group; is my understanding correct? Dik . Four times the weld size d. 4-98, Standard Symbols for Welding, Brazing, and Nondestructive Ex - amination, but is included for information purposes only). An intermittent fillet weld may be used. Where two bars come together at an angle, a gap of at least 3/32-inch (2. center to center of a weld. Solution : - Answer 37 The fillet symbol is drawn on the reference line with the perpendicular leg always to the left. For intermittent welds, the length of each portion of the weld and the spacing of the welds are separated by a dash (length first. 2. DIMENSIONING OF WELDS Intermittent Fillet Welds. left c. 8/1/2017 (e) ALIREZA SAMIMI MOTTAGHIWELDINGENGINEER79@GMAIL. 지난 번 Weld Joint에 이어서 오늘은 Weld Type을 알아보자. I am trying to understand what the correct practice is for intermittent welds for a non-primary member. A fillet weld is a weld that joins two surfaces at an approximate right angle to each other. The weld symbol for fillet welds looks like a triangle, as shown in Figure 7. Intermittent fillet welding of stiffeners to plates and its influence on the collapse behaviour of stiffened plates is investigated applying the finite element method. The other side weld is represented on a dotted line in ISO 2553 while there is no dashed line, hence weld symbol placed above the reference line in the AWS welding symbol represents the weld on other side. Fillet welds are one of the most common weld types in the industry. 1 is defined as the area of the hull that, in normal design operation of the craft, will be subject to loads of sufficient magnitude and velocity for slamming to occur on a regular. Scarf fillet welds are often employed in applications where a smooth transition is needed between the components. Longitudinal Fillet Welds# If the weld is intermittent and not continuous, then the length of the weld and also the gaps between the welds can be mentioned. Eight times the weld size 7 In addition to the above limitation, what is the minimum length for intermittent fillet welds? a. The following table has demo illustrations for different weld symbols described in the article. of undercut (depth) for 2 in. The intermittent welding method transforms the full-length continuous weld into multiple short welds to minimize distortion by reducing the total heat input for a welded joint to control welding distortion. They can be one-sided or two-sided, symmetrical or asymmetrical. d. fillet weld shall be at least four times the nominal size, or. For all other grove welds and for fillet welds, the sum of visible piping porosity of diameter 1/32‘’ (1 mm) or greater shall not exceed 3/8 in. Multiple Choice. Fillet weld. intermittent weld (3. A joint formed by placing one piece of metal against another at an angle of approximately 90° is called a(n) A. An intermittent fillet weld is one that is not continuous across a joint. 7 'a', 'd' and 'f') or as a dressed-off weld as shown in 'b' and 'c'. High-quality, “clean” steels with precision machined. 23 -are placed intermittently on one side of the joint. When the pieces are aligned perpendicularly, the joint is known as fillet weld, whereas when the pieces are laid end to end, a butt weld is performed to join them together. LeJeune Road, Miami, Florida 33126 AWS D14. Among the following options, as per IS: 800-2007, in case of lap joints, usually the minimum lap should NOT be less than. Intermittent fillet welds. Note! Note: Weld symbols on the full reference line relates to welds on the arrow side of the plate being welded. e. 2. (20 mm) in. 5 dimensioning of intermittent fillet welding. A stringer bead is used to create a wider weld pool. 1 uses Leg length, ‘z’ for fillet weld measurements. Direction Changes the start position of an offset weld. Stitch-Welding. 01 kN/ mm) over 200 mm = (200 × 0. 11) on each side of a joint arranged so that the weld elements lie opposite one another along the joint Note 1 to entry: These are usually fillet welds in T-joints and lap joints. Example: 1:Fillet Weld, Rod: Rod1. Intermittent fillet welds are typically for connections that don't require the strength of a continuous fillet weld, but in some cases, there must be some degree of calculation performed to determine whether intermittent welds will support the load. 11. Any segment of intermittent fillet weld shall have an effective length of not less than 40 mm or 4 times the nominal size of the weld, whichever is the greater. I was unsure of what to indicate for 4. g. This can be done for both corner and flat welds. Fillet Welds. 8. 783b. An intermittent fillet weld is a type of weld that consists of a series of individual welds made at intervals along the length of a joint. 3 Minimum Length which states: “The minimum length of a fillet weld shall be at least four times the nominal size, or the effective size of the weld shall be considered not to exceed 25% of its effective length. 39 2. 3. Intermittent fillet welds are indicated on the welding symbol by length and_____. Study with Quizlet and memorize flashcards containing terms like The term _____ refers to the center-to-center spacing of an intermittent fillet weld. 3 Where staggered intermittent or single sided fillet welding is used, the welding is to be made continuous round the ends of brackets, lugs, scallops, etc. You'll find this to the right of the fillet weld symbol. These gaps are typically equal to or greater than the size of the weld itself. Fillet Welds Basic Concepts of Fillet Weld Symbols Fillet welds are the most common weld type and are used on tee joints, lap joints, and corner joints (basically any joint where the parts are at a 90° angle). Weld Joint가 모재를 붙이는 방식에 대해서 나타낸 것이라면 Weld Type의 Welding의 형상이나 방식에 대한 내용이다. chain intermittent weld并列焊接. fillet weld shall be 1-1/2 in. , one that is of at least matching strength to the base. On the Welding tab, click Fillet Weld. The welds will be placed on both sides of the joint but it will be offset with. May 2020 Column Eccentricity Intermittent Fillet Weld Spacing for Tension Members Beam Stability Bracing. 1 INTRODUCTORY CONCEPTS. ) E60XX (k/in. Notice that the spacing, or pitch, is not the clear space between the welds, but the center-to-center (or end-to-end) distance. Intermittent welds are specified by pitch and length of the fillet besides the fillet size. Bearing stiffeners are designed for bearing forces and they must also be checked for safety against compressive forces. The number of tack welds you need depends on the size of the materials you are joining together. As its symbol suggests, the fillet weld is roughly triangular in cross-section, although its shape is not always a right or an isosceles triangle. 5).