Forming Technical Manual - Meadow Burke
Forming Technical ManualMeadowBurke
MeadowBurkeForming Technical Manual www.MeadowBurke.comGeneral Form Design Data.5Common Forming Lumber Properties .9Snaptie Accessories.19Residential Snapties .20Form Aligners .24Single Waler Forming Application.25Single Waler Bracket Installation .26Flat Ties.33Quick Cleats .34Meadow Burke SnaptiesSnaptie - Standard .15Single Waler SystemWaler Brackets .21Snap Jack .24Panel Ties/Panel Tie AccessoriesPanel Ties .3021 – 28Safety Considerations .429 – 34General Form Design Data15 – 201 – 14Table of ContentsLight, Medium and Heavy Forming ProductsShe Bolt.4235 – 44Taper Ties .41Formtie Accessories and Working PartsCoil Nuts .46Washers .47Coil Bolt.48Cone-Fast Products .50Coupler .50Plylag .51Angle Weld Bracket .52Crimped Anchors .59Rock Anchors .6145 – 52Pencil Rod .36Coil Ties.38Euro Medium and Heavy Forming ProductsEuro Swivel Wing Nut .67Euro Angle Weld Bracket .67Pemanent Movement: Double Shear DowelAdvantages .70Joint Solutions.71Reinforcement Details .72Installation.73Temporary Movement: Lockable DowelAdvantages .74Applications.75Performance Data .78Dimensions .79Reinforcement Details .80Installation.8163 – 68Euro Bar - Hot Rolled.66Euro Nut Washer .66Euro Threaded Wing Nut .67Structural Movement SolutionsMedium and Heavy Forming MiscellaneousMedium and Heavy Forming Misc .83Form Hangers .85Screeding .8669 – 82Euro Taper Tie .64Euro Threaded She Bolt .65Euro Bar - Cold Rolled .6683 – 88Coil Inserts for Form Anchorage.5353 – 62Form Anchorage89 – 91IndexIndex .89MB10183
MeadowBurkeForming Technical Manualwww.MeadowBurke.comSafeTy ConSideraTionMeadow Burke recommends that provisions outlined in the American Concrete Institute publication, “Recommended Practice for Concrete Formwork” (ACI 347),be strictly adhered to by all persons and organizations working in the concrete construction industry. Meadow Burke also strongly advises that the safety factorsshown in the Minimum Safety Factors of Formwork Accessories Table be followed. If there are any unusual job site conditions, such as shock, impact, vibration,etc., safety factors must be increased to ensure worker protection.MiniMUM SafeTy faCTorS of forMWorK aCCeSSorieSaccessorySafety factorType of ConstuctionForm TieForm HangersForm AnchorForm Anchor2:12:12:13:1Insert Used as Form Tie2:1All formworkSupporting form, concrete weight and live loadsSupporting form weight and concrete pressure onlySupporting form weight, concrete pressure, live loads and impactPrecast concrete panels used as formworkHeavy cantilever formworkraTed LoadSWorn WorKinG ParTSIt is apparent from the Table that the safety factor applied to a given productIt is the responsibility of the user to continually inspect working parts andis a variable depending on the degree of hazard involved in the application ofhardware for wear. If wear is present, the product should be discarded. Do notthe product. The user of the products in this publication must determine theattempt to straighten bent bolts; they should be scrapped. Discard any boltsapplicable safety factor for the products as a function of its use as describedknown to have been used at loads of 70% or more of ultimate capacity.in the Table.WeLdinGProduct load ratings are based on the ultimate strength of the metal. SafeSince it is impossible to control field conditions, Meadow Burke does not guar-working loads displayed in this publication are approximate minimum values.antee any product that has been altered in any way afterDue to the variety of applications, the responsibility of selecting appropriateleaving its factory of origin. This includes any type of welding orsafety factors is up to the user of the product. Any recalculation of safe work-bending. Do not weld any Meadow Burke product without theing loads due to a change in the approximate minimum safety factor shouldassurance from a qualified engineer that the weld is in a non-critical area.include a careful analysis of all hardware used in the application and the antic-Welding can cause embrittlement at the load point and greatly reduce load car-ipated concrete strength involved. If any doubt, contact a Meadow Burkerying capacity.Service Center for clarification.CAUTION: It is extremely important for the user of Meadow BurkeProdUCT LiaBiLiTyproducts to evaluate product applications, determine the appropriate mini-Meadow Burke stresses that the products in this publication are to be used bymum safe working loads and control all field conditions to prevent loads inexperienced workers with competent supervision. If an end user does not haveexcess of the determined minimum safe working loads.qualified and experienced workers or installers, or does not have the technicalexpertise in the application of the product or does not know the consequencesWARNING: Improper application or faulty installation of any productfrom improper use of the product; do not use the product without consulting adisplayed in this publication can cause hazardous conditions that can result inMeadow Burke Service Center.serious injury or death.MB10184
MeadowBurkeForming Technical Manual www.MeadowBurke.comProdUCT deSiGnConCreTe ViBraTionMeadow Burke reserves the right to change product designs and/orInternal vibration is a primary method of consolidating concrete in the form. Itproduct safe load ratings at any time without prior notice.results in temporary, local lateral pressures that are 10 to 20percent greater than those caused by simple spading. Since internal vibratingfaCTorS affeCTinG LaTeraL PreSSUre onis an accepted common practice, forms should be designed to handle theforMWorKadded pressures.WeiGHT of ConCreTeRevibration and external vibration are other types of vibration used inThe weight of concrete is a direct influence since hydrostatic pressure at anycertain types of construction. Revibration and external vibration methods pro-point in a fluid is created by the weight of the superimposed fluid. Liquidduce higher lateral loads than the internal vibration process and require spe-(hydrostatic) pressure is the same in all directions at a given depth in the fluidcially designed forms. External vibration (also referred to as form vibration) isand acts at right angles to any surface that confines it. Ifaccomplished by attaching vibrators to the outside of the form. The form itselfconcrete acted as a true liquid, the pressure would be equal to theis vibrated to hammer the form against the concrete. The frequency/ampli-density of fluid times the depth, to the point at which the pressure was beingtude of external vibration must be regulated to consolidate the concrete butconsidered. However, concrete is a mixture of solids and water whosenot too strong to damage the form. Revibration is the process where a vibra-behavior only approximates that of liquid for a limited time.tor is forced down through the upper placement into layers of concrete thathave stiffened or have nearly reached initial set. Localized lateral pressures,raTe of PLaCeMenTup to 300 psf/ft of head of concrete, have been recorded using vigorous revi-The average rate of rise of the concrete in the form is referred to as the ratebration. Neither revibration nor external vibrations have been sufficientlyof placement. The rate of placement has a primary effect on lateral pressureinvestigated to be expressed in a standard formula. Pressure formulae in thisand the maximum lateral pressure is proportional to the rate of placement, uppublication are limited to concrete vibrated internally at the time of placement.to a limit equal to the full fluid pressure. As the concreteis being placed, the lateral pressure at a given point increases as theconcrete depth above the point increases. Finally, by consolidation and/orstiffening, the concrete will support itself and will no longer cause lateral pressure on the form.5MB10181 – 14GeneraL forM deSiGn daTa
MeadowBurkeForming Technical Manualwww.MeadowBurke.comsize, placing procedures, type of cement, depth of placement, cross-section ofConCreTe TeMPeraTUreThe temperature of the concrete at the time of placement has an importantinfluence on pressure due to the affect it has on the setting time of the con-the form, smoothness of the form faces and permeability of the form can allcrete. At lower concrete temperatures, the concrete takes longer to stiffen, sohave an effect on the lateral pressure in the form. However, under normal con-a greater depth of concrete can be placed before it becomes firm enough toditions and forming practices, the range of these variable effects is generallybe self-supporting. The greater liquid head results in higher lateral pressures.small and is usually neglected.This is an important form design consideration when anticipating concreteplacement in cold weather, with fly ash replacement or when using retardingOn the other hand, the use of fly ash or other pozzolan as a cementadmixtures.replacement at low ambient temperatures or with a retarding mixture canhave a significant effect on lateral pressure. Likewise, superplasticizingoTHer VariaBLeSadmixtures and the retarders themselves can have a substantial effect on theThere are numerous other variables that will affect the lateral pressure in thelateral pressure. These conditions must be given due consideration during theform. Such things as the consistency of the concrete, the amount and locationform design process.of reinforcing steel, ambient temperature, pore water pressure, aggregateLaTeraL PreSSUre VaLUeS for forM deSiGnVerTiCaL WaLL forMSThe American Concrete Institute Committee 347-04 (Chapter 2) has developed the formulas below for maximum lateral pressure on the form,prescribed temperatures, rate of placement, vibration, concrete weight and slump. They are working formulas based on available data and arerecommended for form design. No claim is made for their theoretical precision.Walls with Rate of Placement (R) not exceeding 7 ft/hr and wall height not exceeding 14 ft and columns:p (150 9,000R/T) CcCw .2.1Maximum wxhMinimum 600CwpsfWalls with Rate of Placement (R) not exceeding 7 ft/hr and wall heights exceeding 14 ft, and forall walls with a placement rate of 7 to 15 ft/hr:p CwCc (150 43,400/T 2,800R/T) .2.2Maximum wxhMinimum 600CwpsfWhere:p maximum lateral pressure (psf)R rate of placement (ft/hr)T temperature of the concreteh maximum height of fresh concretew unit weight of concrete (pcf)Cw unit weight coefficient, 1.0 for w 150 pcfCc chemistry coefficientMB10186
MeadowBurkeForming Technical Manual The formulae are applicable for internally vibrated structural concrete of nor-Table 2.3 is based on Formulae 2.1 and 2.2 and wall heights not exceeding 14mal weight and density, produced with Type I cement and containing no poz-ft. It shows the maximum lateral pressures to be used for form design for rateszolans or admixtures and with a slump of less than four inches. Good con-of placement up to 10 ft/hr and concrete temperatures from 40º to 90º F.crete placing procedures are assumed; for example, vibration is used for consolidation only and is limited to four (4) feet below the surface of the concrete.Since studs and sheathing are usually uniform throughout their height, onlyThe formulae assume that concrete “set” will occur as expected, usually in onethe maximum pressure value is required for their design. However, wales andhour. Do not use design pressures in excess of w x h.tie spacing may be increased near the top of the form due to lower lateralpressure there.MaXiMUM LaTeraL PreSSUre for deSiGn of VerTiCaL WaLL forMSrate of Placement,r (ft per hr)12345678910p, Maximum Lateral Pressure, psf,for Temperature indicated, max wall height 14 ft.90º F80º F70º F60º F50º F40º 5786008251050127515001725179518651935Table 2.3noTe: Do not use design pressures in excess of w x h of fresh concrete in forms.A wall form 14' high may be concreted at R 10' per hour with normal weight concrete (150 pcf), whenthe temperature is 60ºF. Maximum pressure by Formula 2.2 or from Table above is 1340 psf. Since this9'is comparable to fluid pressure up to the time concrete begins to stiffen appreciably, any point within1340/150 9' from the top of the form will have proportionately less pressure than the maximum. TheH 14'1340 maximum is used for design throughout the remaining 5' of the form.5'Keep in mind that the pressure given in the formula (and shown in the sketch to right) represents anenvelope of maximum pressure exerted during the total time required to fill the form. The diagram does1340 psfnot show distribution of pressure over the form surface at any one time.In the case of a wall form only 6' high, concrete at the same R 10' per hour and temperature of 60ºF, the limit of w x h applies since it is less than the value given by the formula. The envelope of maximum6'pressure then is as shown to the right.900 psf7MB10181 – 14www.MeadowBurke.com
MeadowBurkeForming Technical Manualwww.MeadowBurke.comTyPiCaL Tie LoCaTionS and forM deSiGnnoTeS, CaUTionS and WarninGS:a. If actual rate of placement exceeds design rate of placement, a snaptie or form failure may occur.b. If “set” time of concrete is altered by additives, i.e. entrained air, pozV Vertical Spacingzolans, fly ash or other retarders, excess vibration or any other means ofalterations or incorrect temperature allowances, then one of the lowerrow ties will likely fail due to an over-load condition.c. Remember, a full liquid head of 150h can develop if concrete “set”does not occur when expected (or if concrete “set” is interrupted byexcessive vibration). If, for example, a 12' wall is poured in 3 hours at arate of 4' per hour design, and a form tie (or ties) fails, usually in the 2ndor 3rd row from the bottom, then the concrete probably did not “set”when expected, and a full or partial liquid head (150h) developed, causingmuch higher pressure than expected.Note: Normal concrete, 150 lbs. per cu. foot, without any additives,retarders or excessive vibration, at 70ºF to 80ºF will “set” in about1-3/4 hours. It is possible for concrete “set” to take up to 3 hours undercertain conditions. Forming contractors should exercise the utmost caution when evaluating expected “set” time. It is the least controllable of allparameters involved.Caution: It takes the concrete more than one hour to “set” under the following conditions:H Horizontal Spacing The addition of admixtures or pozzolans The addition of retarders or entrained air Actual temperature is less than design Excessive vibration to depths greater than Vibrator used to move concrete laterally in Revibration of prior vibrated areas Concrete slump in excess of four inches Use of cement other than Type 1 Portland Cementtemperaturefour feet below concrete surfacethe formTyPiCaL Tie LoCaTion and forM deSiGnRecommended Form DesignTie SpacingHorizontalSpacingVerticalSpacingTie ngStud Size &SpacingWalesR Rate of placement and ambient temperature ctual TieLoad,lbs2250 LB Safe WorK Load SnaP TieS5/8 Plyform3/4 Plyform5/8 Plyform3/4 Plyform5/8 Plyform3/4 Plyform2x4@10"o/c DBL 2x4/2x4@11"o/c SGL 2 x 62x4@9"o/c DBL 2x4/2x4@10"o/c SGL 2 x 62x4@10"o/cSGL 2 x 0"4'-8"5'-4"6'-0"75022503250 LB Safe WorK Load SnaP 8 Plyform3/4 Plyform5/8 Plyform3/4 Plyform5/8 Plyform3/4 Plyform2x4@9"o/cDBL 2x62x4@10"o/c2x4@10"o/cDBL 2x62x4@12"o/c2x4@10"o/c DBL 2x4/2x4@12"o/c SGL 2 x -0"4'-7"6093250Table is based on a concrete “set” time of one hour. If “set” times of more than one hour are anticipated, adjust pour rates accordingly.Table is based on equation 2.1 on page 4.Stud spacing based on plywood face grain parallel to span and APA rated Class 1 Plywood.Stud and waler design based on SYP #2 lumber.MB10188
MeadowBurkeForming Technical Manual www.MeadowBurke.com1 – 14CoMMon forMinG LUMBer ProPerTieShxxxhxxxbbbProPerTieS of STrUCTUraL LUMBeramerican StandardnominalSize (in.)Size (in.)bxh S4S*bxh19% Maximum Moisture4x26x28x210 x 212 x 22x42x62x82 x 102 x 123x43x63x83 x 103 x 124x44x64x84 x 103 1/2 x 1 1/25 1/2 x 1 1/27 1/4 x 1 1/29 1/4 x 1 1/211 1/4 x 1 1/21 1/2 x 3 1/21 1/2 x 5 1/21 1/2 x 7 1/41 1/2 x 9 1/41 1/2 x 11 1/42 1/2 x 3 1/22 1/2 x 5 1/22 1/2 x 7 1/42 1/2 x 9 1/42 1/2 x 11 1/43 1/2 x 3 1/23 1/2 x 5 1/23 1/2 x 7 1/43 1/2 x 9 1/4area of Sectiona bh, (sq 7513.7518.1223.1228.1212.2519.2525.3832.38Moment of intertia (in.) Section Modulus (in.)I bh3S 1.15230.84* Rough dry sizes are 1/8" larger, both dimensions.† Based on a unit weight value of 40 lb. per cu. ft. Actual weights vary depending on species andmoisture content.Data supplied by the National Forest Products 012.6021.9035.6552.737.1517.6530.6649.91Board feet(per linealft of piece)approx.Weight(lbs perlinea
crete. At lower concrete temperatures, the concrete takes longer to stiffen, so a greater depth of concrete can be placed before it becomes firm enough to be self-supporting. The greater liquid head results in higher lateral pressures. This is an important form design
The Burke Adult Fitness Center is open to the public. Members of the community, as well as current and prior patients at Burke Rehabilitation Hospital - all are welcome to participate in our programs. Burke Adult Fitness Center provides exercise experiences for members ages 40 and over who want to improve and maintain overall health and .
3. Return all forms fully completed to the Burke Adult Fitness Center. -E-mail: burkefitness@burke.org -Address: Burke Rehabilitation Hospital Attn: Burke Adult Fitness Center . 785 Mamaroneck Ave. White Plains, NY 10605 -Fax: 914-597-2809 4. The fitness center will call you to schedule an assessment whenall of the forms have been received.
Meadow Burke metal reinforcing bar supports can be manufactured in compliance with American Concrete Institute (ACI) ACI-SP-66, ACI-315 and ACI-315R. Quality rebar metal supports are available in the following CRSI Classification for finishes: Class 1A – Epoxy coated. C
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A review of spinning, shear forming and flow forming process: In the last few years or so spinning and flow forming have gradually matured as metal-forming processes in production of engineering components from small to medium batch quantities. C.C. Wong and T.A. Dean have introduced the process details of the flow forming and tube spinning .
Resume 1/12 Thomas Burke Thomas K Burke P.E. Senior Water Resources Engineer Mr. Burke is a hydrologist and water resources engineer with over 30 years of experience in surfacewater and groundwater hydrologic modeling. Prior to
Weill logo, scale it down to about 65% of the height of the Burke logo. Do not match the height of the Burke logo with the height of Weill Cornell’s logo. Messaging Always include this language on communications from Burke Neurological Institute: Burke Neurological Institute is an academic affiliate of
shop at library book sales? Viewpoints Seasonal themes deco-rate the white board in the children's book section of the Burke Centre Library book sale on Saturday, March 19. Inside one of the donated books is a secret hiding place. Guesses as to what it could have concealed include a small gun, cash, photos or a flask. The Burke Centre Library .
