Imperial. folds. Wall braces are attached to the multifunction. guard-railing post. Formworkprop. connectors and flange screws.

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1 Wall all braces / Working scaffolds folds Wall braces are attached to the multifunction profiles by formwork-prop connectors and flange screws. guard-railing post brace frame 250 consists of push-pull prop R 250, brace SRL 120 and double-jointed foot plate. Anchoring Before anchoring the formwork to the ground, the properties of the ground and the rating of the dowels or nails must be verified according to the federal, state and local codes and regulations. scaffolding adapter scaffolding bracket push-pull prop shoe plate Fig. 40.1: Guardrail system 1 (controlled access zone) Fig. 40.2: Guardrail system 2 (controlled access zone) Working scaffolds To provide a safe and roomy working platform you can either use two scaffolding brackets (Fig. 40.1) or a combination of a scaffolding bracket and the scaffolding adapter (Fig. 40.2). shoe plate anchored to the ground scaffolding adapter Detail: Shoe plate Detail: Scaffolding adapter D escription R ef.-n o Adjustmen t r range (ft) Adm dm. pressur ressure e ( (lbf lbf) Adm. tensile e f force (lbf) Weigh eight ( (lbs lbs) Recommended area of applicatio pplication Description Ref.-No. Push-pull props Push-pull prop R R R R Articulated foot plate Formworkprop connector scaffolding adapter shoe plate Push-pull prop R Push-pull prop R Push-pull prop R Push-pull prop R '-5 1/8" to 6'-6 3/4" 6'-2 3/4" to 10'-6" 11'-1 3/4" to 17'-0 3/4" 16'-8 3/4" to 24"-7 1/4" 5,620 5, ,620 6, ,495 6, ,100 2, Push-pull prop of the brace frame 250 suitable for wall heights up to 12' Wall formwork for up to 20' high walls Wall formwork for up to 30' high walls 40

2 Wall all braces / Working scaffolds folds freefall height < 6' Fig. 41.1: Guardrail system 3 (fall arrest system) freefall height < 6' Fig. 41.2: Guardrail system 4 (fall restraint system) The scaffolding adapter without guard rail gives you the possibility to attach lifelines and lanyards (Fig and Fig. 41.2). Braces for high walls For forms exceeding 30' in height we recommend using Triplex (reinforced braces specially designed for heavy duty use). Attention When using our products the federal, state and local codes and regulations must be observed. lifeline lanyard scaffolding adapter Detail: Lifeline with lanyard Description Ref.-No. Distances between wall braces For formwork alignment 12' For transfer of wind loads 8' Push-pull prop R R R R Articulated foot plate Formworkprop connector scaffolding adapter shoe plate

3 Stripping corner The stripping corner allows gangs for elevator shafts and core walls to be set and stripped without disassembling the gangs (Fig and 42.2). The stripping corner is designed with three pieces to permit inward movement when a turnbuckle connection is retracted. Minimal crane time is required because the stripping corners turn all sides of the gang into one moveable unit. After resetting the gang for the next pour, the turnbuckles return the gang form to the rectangular shape. Fig Stripping corners allow easy stripping of gangs adjacent to corners or pilasters (Fig. 42.3). Fig Fig Description Ref.-No. stripping corner 8 x x Detail (expanded) Detail (retracted) 42

4 Folding shaft formwork Fig ➂ ➄ ➃ ➁ ➀ ➅ ➀ outside corner ➁ articulated outside corner ➂ inner reinforcement with steel rails or squared timbers attached to the multi-function profile ➃ articulated inside corner ➄ brace SRL suited for drain channel construction or squared timbers and tensioning chains ➅ -panel The various shaft dimensions are formed with standard panels; if necessary length compensations are performed according to the examples shown on pages 24 and 25. Minimum shaft dimensions: 5'-1" x 5'-1" (without reinforcement being taken into consideration). Inner formwork Articulated inside corners are used to form the angles, whereas the hinged outside corners are inserted between the panels in the straight section (Fig. 43.1). This kind of assembly allows a star-shaped contraction of the complete inner formwork. 7 1/2 Fig combi-connector (reversible) or universal joint connector and combi-lock with coupling brace adjustment range Fig inner shaft dimensions* SRL 120 2'-11 1/4" to 4'-11 1/4" 6'- 3" to 6'-10 3/4" SRL 170 3'-11 1/4" to 7'- 2 1/2" 6'-10 3/4" to 9'- 2 1/4" * taking reinforcement into consideration Dismantling After removing the ties and steel rails, the inner formwork is contracted by means of SRL braces. The crane can now lift the complete inner core and remove it to the next place of application (Fig. 43.3). Use of universal joint connector The universal joint connector (Fig. 43.2) provides the lateral displacement of combilock and brace while contracting the inner formwork. Description Ref.-No. Combi-lock with coupling Universal joint connector Combi-connector (reversible)

5 Assembly and stripping (general) Planning stage Formwork Assembly Reasonable planning In most cases it is and preparation are recommended to set the keys to a successful the outside formwork application of any first. Always start at a modern formwork convenient location systems. and immediately First of all, determine attach a brace to the the amount of panels set in place. If formwork material you choose to preassemble large-size that will be needed. In this regard several gangs on the ground, factors of influence attach braces and should be taken into working scaffold account: before lifting the weight of the formwork to be handled have a flat surface for whole unit. You should time allowed for the pre-assembly. assembly and Don t forget to spray dismantling the alkus face with transportation of the release agent. formwork from one pour to the next Panel connection either panel by panel, In general the 4 and or in gangs (which 8 high panels are connected at the vertical considerably reduces forming time) joint using 2 assembly capacity of the lifting locks, while 12 high equipment panels are connected size of pours (taking with 3 assembly locks. into account the number of corners etc.) Exception: outside Once all these corners are connected aspects have been to the adjacent panels considered, the quantities of formwork outside corner 4 high: as follows: items can be specified. 2 assembly locks outside corner 8 high: Assembly Area 3 assembly locks The area where the outside corner 12 high: formwork is set should 5 assembly locks be clean, even and capable of taking the expected load. Fig Fig 44.2 filler for easy stripping 44

6 Assembly and stripping (general) formwork height = 8 Fig scaffolding bracket 125 push-pull prop with formwork-prop connector, attachment to the multifunction profile by flange screw safe attachment of the scaffolding bracket by means of a flange screw Bracing the formwork Closing the After erecting the formwork panels braces must be attached immediately in order to prevent the panels from tilting over. Anchor the foot plates of the braces to the ground. If anchoring in soil use ground nails: if anchoring to a concrete slab use heavy-duty dowels. (Fig. 45.1) The spacing of braces is described on page 41. Working scaffold Scaffolding brackets are attached quickly with their integrated self-locking pins. The brackets are the basic item for the working scaffold. The walk- Stripping boards can be bolted to the scaffolding brackets. The walkboards must not be placed on the scaffolding brackets before 1. the braces are attached to the formwork, and 2. all ties are placed connecting the 2 sides of the formwork. For planning and installation of the brackets see details on page 39. After setting and bracing the outside formwork: mark the pouring height install blockouts and reinforcement when using threadbars install a tie in all tie locations install PVC sleeves over the ties set the inside formwork tighten the formwork, using either standard or articulated flange nuts on both sides of the tie. When short wall sections ( 20') are involved, be sure to install a filler, or if possible use stripping corners while assembling the formwork (Fig. 44.2). This allows easy stripping. In all other cases start stripping at one end or at a corner. Flange nuts and ties are removed section by section. The side of the formwork without braces must be stripped immediately or otherwise secured in order to prevent the panels from tilting over. The panel units are stripped by removing the assembly locks from the panel joints. If the formwork is handled manually, remove working scaffold and braces prior to dismantling the panels. If the formwork is handled by crane, working scaffold and braces can remain on large-size gangs. The dismantled units are cleaned in upright position and release agent is applied before moving them to the next pour. When there is no further use for the large-size gangs they should be placed face down to remove scaffolding and braces. The panels are cleaned on the ground and stacked for transport (for example, with transport angles). Safety regulations When using our products the federal, state and local codes and regulations must be observed. 45

7 Assembly and stripping of gangs (exemplary) I. Unloading and assembly 1. For unloading panels from a truck, a stack at a time, use the crane slings 60. The stacks usually come with panels face up (Fig. 46.1). 2. Lift one panel at a time and lay it down (face up) on square timber. 3. Remove the crane slings 60 and attach crane hooks. 4. Lift and turn the panel by 180 and put it down again on the square timber face down. 5. Arrange all the panels you need for the gang in that manner and attach the assembly locks and steel rails. 6. Mount the scaffolding brackets and braces. Fig Fig

8 Assembly and stripping of gangs (exemplary) Fig II. Lifting and setting 1. For lifting the gang use at least 2 crane hooks plus standard crane slings (supplied by contractor (Fig. 46.2)). 2. Lift the gang to upright position and spray the alkus face with release agent (Fig. 47.1). 3. Move the gang into place and immediately anchor the braces to the ground. 4. Remove the crane hook. 5. Proceed with the other gangs in the same way (Fig. 47.2). Fig

9 Assembly and stripping of gangs (exemplary) III. Closing formwork The opposite formwork is assembled the same way as described before. For this formwork, however, you may not necessarily need braces. a) Closing with DW- threadbars 1. Insert the ties through the first formwork equal to the required wall thickness. 2. Install spacer cones and PVC sleeves over the ties. 3. Lift and move the second formwork into place. 4. Push the ties through the second formwork and secure them on both sides with flange nuts. 5. When using systems without spacers apply Z-bars to ensure constant wall thickness (Fig. 48.1, 48.2). b) Closing with taper ties 1. Lift and move second formwork into place. 2. Insert the taper ties and adjust them to the required wall thickness. Secure the ties on both sides with flange nuts. c) Closing with shebolts or steel cones Please consult technical department for details. Attention: Do not remove crane hooks until both sides of the formwork are sufficiently secured with ties. Fig Fig

10 Assembly and stripping of gangs (exemplary) Fig Fig IV.. Pouring See pages 39 ff. for safety advice for workers on platforms (Fig. 49.1). Observe all federal, state and local codes and regulations for pouring concrete. Attention: The admissible fresh concrete pressure of 2,025 lbs/ sq.ft. must not be exceeded. V.. Stripping and dismantling Do not start stripping until the concrete has set to the point where it cannot deform anymore. Always start with the second side of the formwork (the one without braces). 1. Mount the crane hooks to the gangs, attach the standard crane slings and pull them tight. 2. Remove the ties and assembly locks. 3. Pull the gang up vertically (Fig. 49.2). 4. Move the gang to the next pour or a temporary storage, or dismantle it (as required). 5. If heavily soiled you might need to clean the panels and spray them with release agent before the next use. Attention: All personnel must be OFF the formwork when moving gangs by crane. Make sure to remove all loose objects (such as concrete remnants, tools, etc.). 49

11 Crane slings Stapos 60 Crane slings made of polyester tape with double-sided textile coating. The loadbearing capacity is stamped on the coating. The sling is provided with a galvanized selflocking fastening device. 4 crane slings 60 are needed to move and transport panel stacks. They loop securely to the four corners (Fig. 50.1). Handling Place the panel stack on square timbers (Fig. 50.2). First push the suspension device under the stack with your foot (Fig. 50.3). Then yank the sling up (Fig. 50.5). The elastic fastening pin will engage completely in the profile groove and secures the stack against accidental uplift (Fig. 50.4). Fig Fig Fig Fig Description Ref.-No. Crane slings Stapos Fig

12 Crane slings Stapos 60 While transporting the stack by crane the load-bearing capacity is uniformly distributed to all slings. Just one person is required for attachment and removal of the slings. Attention The Stapos crane slings may be used only in conjunction with double-rope crane devices in compliance with applicable safety regulations. If panel width exceeding 6'-6" a four-rope crane device is imperative (Fig. 51.1). Fig Technical data Description Crane slings Stapos 60 Ref.-no Weight Color Adm. load-bearing capacity Adm. stack weight 9.9 lbs green per sling 2,200 lbs 4,400 lbs For frame profile width 2 3/8" Max. stack height Max. stack height for large size panels 10 panels 8'x8' = 5 panels 12'x8' = 3 panels 51

13 Lifting hook 60 / Crane slings 60 Transport device The transport device (Fig and 52.3) helps in quickly loading and unloading trucks and moving the stacks near the ground. The lifting hooks are inserted into the welded sleeves of the bottom panel frame. Lifting hook The lifting hook can be used with any fourrope crane device available on the construction site to transport stacks of panels (always use 4 hooks at a time). To calculate the admissible load-bearing capacity assume only 2 hooks. Attention After tightening the device check to make sure the hooks are safely locked (Fig. 52.2). Fig Fig locked position Description Ref.-No. Crane slings Lifting hook Fig

14 Lifting hook 60 / Crane slings 60 Technical data Crane slings 60 for stack height: 5 panels of 8' width or 10 panels of less than 4' width Weight: 48.5 lbs Max. load-bearing capacity: 4,400 lbs Ref.-No Lifting hook 60 Weight: 4.4 lbs Max. load-bearing capacity: 2,200 lbs Ref.-No Transport When transporting several panels at a time the stack must be secured against displacement using a tensioning belt or two Dywidag ties with integrated flange nut. Fig Maintenance The eccentric part of the lift hook must rotate under its own dead weight. If necessary, clean and grease the lifting hook. A drilled hole is provided for this, or it can be greased with a nipple. Inspection The lifting hook/crane slings must be regularly checked (at least once a year) by an expert. In addition, the user must check it during use for obvious damage. Fig Description Ref.-No. Crane slings Lifting hook

15 Crane hook The admissible load of a crane hook (Fig. 54.1) is 3,300 lbs. The handling is very simple: Open the safety lever as far as possible (Fig. 54.2). Then push the crane hook over the panel profile until the claw engages completely in the groove. Move the safety lever back to the starting position to lock the crane hook (Fig. 54.3). When moving gangs (Fig. 54.4), make sure that each crane hook is attached at a panel joint or above a stiffener (when horizontally stacked). This avoids displacement of the crane hook. For more illustrations see page 36. Safety tips Always check the crane hook before use. Do not overload the crane hook. Overloading causes damage. Attention If the reference dimension exceeds 2 13/32" the crane hook must be replaced immediately. (Fig. 54.5) Replace it even if only one side of the hook exceeds this dimension. Safety regulations When using our products the federal, state and local codes and regulations must be observed. Fig Fig Fig Fig reference dimension Description Ref.-No. M-crane hook Fig

16 Single-sided formwork Support frame STB The formwork together with support frames can also be applied when concrete has to be poured against an existing wall or the like, i.e. when a single-sided formwork is required. Support frames 300 are good for wall heights up to 12'. Support frames 450 with height extensions allow for wall heights over 26'. Technical data sheets are available on request. Climbing formwork KLK 230 When forming high walls, facades, pillars, staircases or elevator shafts, formwork is set and secured on climbing scaffold KLK 230. Technical data sheets are available on request. Attention The use of support frame and climbing scaffold requires a detailed formwork planning! 55

17 Service Rentals We offer our customers the option of renting supplementary material during peak times. We also give prospective customers the chance to test MEVA formwork so they can see its benefits for themselves in actual use. Formwork drawings Of course, all offices in our technical departments have CAD facilities. You get expert, clearly represented plans and work cycle drawings. MBS - MEVA Basic Support MBS stands for an addition to AutoCad. Developed by MEVA Formwork Systems in MBS is based on standard programs (AutoCad and Excel) and can be installed on every PC that has these two programs installed. It includes pull down menus for AutoCad and applications to ease forming. It also includes the possibility to create take offs. Special solutions Even if you are facing a really difficult job, like Y-shaped ducts or the like, we can help with special parts, purposedesigned for your project, as a supplement to our formwork systems. A separate department in our headoffice is devoted to creating such solutions. Static calculations Generally, this is only necessary for applications like single-sided formwork where the anchor parts are embedded in the foundation or the base slab. If requested, we can perform static calculations for such applications at an additional charge. 56

18 Notes 57

19 Notes 58