SAFETY INFORMATION
WARNING: IMPROPER USE OF CONCRETE ACCESSORIES CAN CAUSE DEATH OR SEVERE INJURY.
It is important that you read and understand the information contained in this booklet before using any of the Olivetti Concrete Lifting Systems accessories. If you have any questions regarding the correct use or installation of any Olivetti Concrete Lifting Systems accessories, please contact Olivetti Concrete Lifting Systems either in VIC or NSW for immediate clarification.
Olivetti Concrete Lifting Systems products are specifically intended to be used by trained, qualified and experienced people. Misuse or lack of supervision and/or inspection can contribute to serious accidents or deaths. If you employ any other application than those shown in this booklet it should be tested before use.
If any of the Olivetti Concrete Lifting Systems products are used, you must first evaluate the product application in order to determine the safe working load and control all field conditions to prevent application of loads in excess of the product’s safe working load. Olivetti Concrete Lifting Systems has developed safe working loads for the products contained in this booklet in combination with actual testing and/or other industry sources. It should be noted that the recommended safe working loads given for each of the products must never be exceeded.
Alternate Product & Design
Many of the products that Olivetti Concrete Lifting Systems manufactures and supplies are designed to be used as part of a complete system. Olivetti Concrete Lifting Systems discourages interchanging products supplied by other manufacturers with components supplied by Olivetti Concrete Lifting Systems, as it loses the integrity of the major product. When used in accordance with instruction, Olivetti Concrete Lifting Systems products have proven to be among the safest in the industry. It should be noted that when the Olivetti Concrete Lifting System products are used with incompatible components supplied by other manufactures, the products or system may be rendered unsafe.
Olivetti Concrete Lifting Systems reserves the right to change product designs, rated loads and product dimensions at any time without prior notice.
Modification
It should be noted that welding concrete accessories can compromise its safe working load value and cause hazardous situations. Knowledge of welding procedures, heat treating, etc, are necessary for the most appropriate welding. Consult a welding expert or licenced dealer for assistance in determining the appropriate welding procedures.
It should be noted that unless approved by a licensed metallurgical engineer You must not weld to any casting; welding to an iron casting may cause brittleness, etc, which destroys the products load value. Since Olivetti Concrete Lifting Systems cannot control workmanship or conditions in which modification are done, Olivetti Concrete Lifting Systems cannot be responsible for any product altered or modified by external parties.
Service of Wear & Tear
Concrete accessories must be used and maintained accordingly to abide by safety rules and regulations. The various products contained in this booklet may be subject to wear, corrosion, overloading, deformation, and other factors that may affect the device’s performance. All reusable products must be inspected regularly to determine if the products may be used at the rated safe working load. Factors such as the amount of use, period of service and environment determine the amount of inspections required. It is the responsibility of the user to arrange inspections for wear and to remove from service if it is no longer rated safe.
RIGGING METHOD
HARDWARE
Anchors
Note: the safe working load varies with application, panel thickness, insert depth, etc. Please refer to the documentation and panel layouts for appropriate sizes. It should be noted that the lifting anchor has a safety factor of 3:1 to the safe working load.
5 Tonne Stub Anchor
Olivetti has developed the stub anchor predominantly for use in areas where conventional 5 tonne anchors are to large to be used. For example, in the situation where a panel may have a window or door opening located where the lifting point must be.
5 Tonne Face Lift Anchor
Olivetti provides anchors for face lifting applications. By using this type of anchor, panels may be lifted in a flat position. The design allows for shear bars to be placed across the anchor as shown, and the entire anchor itself is self supporting. The use of 5/9 tonne lifting clutch means reduced down time in rigging both on the workshop floor and on site.
5/9 Tonne Lifting Clutch
The Olivetti lifting clutch is designed to assist in the tilt-up and lifting of concrete panels. When the clutch is engaged to the lifting anchor and pressure is applied, meaning disengaging the clutch is impossible. This assuring the Precaster of safely lifting the panel. The placement of the lifting clutch must be made by hand. The clutch must never be subjected to shock, welding, hammering nor any kind of reworking. A minimum factor if safety of 5 is applied with respect to the lifting clutches in accordance with AS3850.
Erection Anchor
The erection anchor is specially designed for horizontal and vertical edge pull and shear rotation of thin-walled units. Two steel protrusions on the head provide added protection against spalling. These protrusions hug the two sides of the ring clutch to give added support when pulled laterally. Notches on the side of the anchor accept reinforcement for-free panel rotation.
Reinforcement Shear Bar
The shear bar provides simple and economical reinforcement
for the erection anchor during the rotation phase of edge lifts. The loop
of the shear bar of over the erection anchor and spreads the shear stress
over a wide area. It is stronger, less expensive and easier to use than
fabricated rebar.
Anchor Reinforcement Bar
The reinforcement bar is fitted through the hole in the erection anchor. The reinforcement bar will provide extra tension capacity for the edge tension lifts up to tension capacity of anchor.
Void Formers
In order to attach a lifting anchor, you must firt create a void in the surrounding concrete. To achieve this we use a rubber former shaped slightly larger than the lifting clutch and designed to attach to the lifting anchor. Concrete us poured from the panel, when curing has taken place the rubber former is pulled out thus revealing a void in the concrete large enough for the lifting clutch to be attached to the lifting anchor.
Packing Shims
- Shims are placed in between footing and concrete walls
- Packing shims are safer than steel, as they will not rust, or leave stains when wet, and are UV stabilised
- If placed ontop of each other, ensure they are taped up so they will form one rigid pack.
- When placing shims there should be a minimum of one shim positioned at each end of panel, and one shim in the middle if the panel is large/wide
- Do not exceed a height of 40mm packing between footing and panels, by using shims
- Shim heights should be set with dumpy level to ensure panels or precast will sit plumb
- With
panel in place ensure non-shrink grout is placed around shims at a minimum
of 400m
TILT UP GUIDE
General Safety
-
Each of the clutches must be checked before they are transferred to a new job site
- All clutches have individual I.D. Numbers for registration and checkup
- Users guidelines must be supplied to those erecting and job site superintendent before using the lifting system
- Check the markings on the clutch and lifting anchors
- Check if the lifting anchor is in 90 degrees to the panel surface
- Clutches have to be checked by an approved authority every year
- Ensure that the right rigging is used in respect to the anchor position
- Check if the void is clean
- Check if the rigging/lifting slings have the correct lengths
- Check the clutch for any form of damage, cracks, or distortion
- Keep clear a safe distance from the panel or do not go under or on the panel during erecting.
- Consult Australian standard guide lines for safety before using tilt up equipment.
- For all your question on the use of this system please contact Olivetti Concrete Lifting Systems.
Tilt Up
Tilt-up items consist of panels, tilt slabs etc, cast at the job site. These essential items are cast on a floor slab, or casting beds, tilted to a vertical position and then moved to final position. The panels are braced temporarily until permanently secured.
Reinforcing steel should be used when the precast member would be overstressed during handling operations. The size and location of the reinforcing steel, should be determined by an engineer or experienced person.
The choice of type, size, quantity and location of inserts should take into consideration those factors which affect insert loading and concrete stresses, such as:
-
Panel weight
- Strength of concrete at time of initial lift
- Physical dimensions
- Reinforcement placement
- No. and locations of openings
- Insert safety factor
- Bondbreaker suction
- Rigging configuration
In lifting panels the Face Lift Anchors are in a combination of tension and low shear. As the panel is tilted, tension decreases and shear increases until, when the panel is in a vertical position, the entire load on the inserts is in shear.
Anchors performance may be improved by placing the reinforcing steel tightly adjacent to the inserts and on the side from which the external force is applied.
Notes for Use:
- Do not use for edge lifting of panels, as face lifters are not designed for such use.
- Reasonable care should be taken to ensure that the insert is the correct overall height for the panels and remains perpendicular to the panel face during the concrete placement.
- Anchor must be at least 350mm from panel edge or opening.
- Concrete should be of the correct strength and slump.
- A minimum concrete strength of 25mpa should be achieved before lifting.
- Lifters are to be placed in the panel so as to allow the panel to be lifted from a horizontal position to a vertical position.
- All panels should have their lifting placement design (shop drawings) calculated on a computer program by a suitably qualified designer. No lifters should be changed from this configuration.
- No welding should ever be
done to any components.
OLIVETTI
CONCRETE LIFTING SYSTEMS
Email: admin@olivettieng.com.au
Phone: +61 3 9799 6430 Fax: +61 3 9799
2936