SP Prop Steel prop. // Versatile, strong, safe

Transcription

1 Steel prop // Versatile, strong, safe

2 IMPORTANT: Any safety provisions as directed by the appropriate governing agencies must be observed when using our products. The pictures in this brochure are snapshots of situations at different stages of assembly, and therefore are not complete images. For the purpose of safety, they should not be deemed as definitive. All of the indications regarding safety and operations contained in this brochure, and the data on stress and loads should be respected. Any change or unusual construction requires special calculations or solutions. Our equipment is designed to work with accessories and elements made by our company only. Combining such equipment with other systems without carrying out the corresponding verifications may be dangerous. The company reserves the right to introduce any modifications deemed necessary for the technical development of the product. All rights reserved. Neither all nor part of this document may be reproduced or transmitted in any way by any electronic or mechanical procedure, including photocopy, magnetic recording or any other form of information storage or retrieval system without the written permission of ULMA. National Book Catalogue Number: SS

3 SP prop Product description Assembly, use and disassembly Solutions Conditions of handling and maintenance General safety tips Components and accessories Safety Note Control Note Warning Note

4 Product description ULMA s SP prop is well known and in great demand on the market. It has been used for shoring in countless construction projects, and our customers still prefer it because of its efficiency and ease of use. This experience, and the prestige of the brand, places the ULMA s props in a privileged place, which can only be reached by providing reliability and safety at the construction site. If we further consider the quality of raw materials used, the manufacturing processes and final treatment applied to our products, the results in a site are guaranteed. All the data shown in this document are supported by rigorous testing carried out in our testing laboratory. For more details on the correct functioning, use and handling of the SP prop, please contact the Application Engineering Technicians of our delegation nearest to your site or location. They will be happy to attend to your queries. 4

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6 The SP prop has been designed for shoring horizontal formwork systems, and for other shoring requirements that may arise on the construction site. It is known for its special design, which permits regulating and securing at specific heights thus permitting fast height adjustment of the element to be shored. Galvanizing and polyester resin coating techniques give them an effective anti-rust protective coating. There are three types of props available in the SP range: Normal Prop Strong Prop SP Prop Normal Prop It is designed to bear loads commonly found in housing construction. There are two models of Normal Props available ranging in height from 1.75 m to 3.5 m. Strong Prop This prop shares the same design as the Normal Prop, although as its name indicates, it is stronger. There are three models of Strong Props available ranging from 2.1 m to 5.25 m high. SP Prop Light weight, strong and high load capacity. The inner tube is protected against unintentional disengagement, thus avoiding loss of components or accidents during transport. Fast prop removal system: facilitates formwork stripping. Self-cleaning nut: removes dirt and concrete and it is quickly fitted and released thanks to its double thread. Anti hand trap: provides hand protection when handling the inner tube. 1- Inner tube 2- Outer tube 3- Base plate 4- Nut 5- Regulator 6- Pin 6

7 The following table provides the working loads (kn) for SP props based on heights reached by the props with the progressive extension of the inner tube. NORMAL PROP STRONG PROP SP-30 SP-35 SP-40 SP-50 Height (m) ,65-5, ,00-3, ,50-4, These data are valid for new or used (maintained and ready to use) props, plumbed and with vertical centered load. 7

8 Assembly, use and disassembly NORMAL AND STRONG PROP ASSEMBLY Use the handle to lower the adjustment nut to the minimum extension. 1 2 Extend the inner tube to the required height and insert the pin in the hole closest to the nut. Use the regulator to adjust the height. Correct prop adjustment is achieved when the weld bead on the lower end of the nut cannot be seen. If the weld bead is still visible it means that the pin was not inserted into the regulator in the proper position. The ground in which the prop rest must be compacted in such a way that, either the ground itself or planks placed on it, can bear the loads exerted on it. 3 Make the fine adjustment by turning the adjustment nut until the prop is firmly fixed in position. 8

9 SP PROP ASSEMBLY 1 Lower the collar nut until below the slot of the prop thread by using the handle. 2 Extend the inner tube of the prop until the desired height is reached. Insert the pin into the hole closest to the collar nut. 9

10 3 Make a final adjustment by turning the nut until the prop is fixed firmly in its position. 10

11 NORMAL AND STRONG PROP DISASSEMBLY 1 Loose the adjustment nut until the prop is released. 2 Remove the pin from the hole where it was inserted while holding the inner tube with one hand. 11

12 3 Insert the inner tube back to its lowest position. 4 Put the recovered prop on the corresponding pallet. 12

13 SP PROP DISASSEMBLY 1 Hit the end of the pin of the prop in working position until the recesses fit on the nut and rest on the flange. The pin and the inner tube will have been lowered by 2.5 mm. Inner tube Threaded part Inner tube Threaded part Pin stop Pin stop Pin in working position Nut Nut Pin in stripping position 13

14 2 Loosen the nut manually with the handle or if necessary by hitting the protrusion of the nut at one side with a hammer until the prop is released. Use the handle only with the hand to set or release the props. Do not strike the handle with the hammer. 3 Remove the pin from the hole with a hammer blow. This is best done by firmly holding the inner tube. 14

15 4 Take the recovered prop in its new location or put it on the corresponding pallet. 15

16 Solutions Formwork shoring with props consists of placing as many units per square meter as necessary to achieve a secure and stable shoring, capable of supporting the slab thickness defined for the job. 16

17 Handling and maintenance conditions SP Prop RECEIVING MATERIALS ON SITE Fence off, enclose or and close off the working area when appropriate. Receive transport vehicles on site after obtaining the necessary permits when applicable. The storage zone must be established beforehand and duly marked. UNLOADING MATERIAL STORAGE All the material must arrive grouped or strapped together. The person in charge of receiving the material will revise the condition of the pallets or packages. The forklift route will be marked out in order to avoid interferences with personnel. The forklift operator will store the materials following the operator instructions provided by the person in charge of storage. Under no circumstances must the operator in charge of storage or receiving, stand on the forklift travel route. During unloading by crane, the operator incharge of unloading must not stand underneath the load. Loads bigger than 25 kg must not be handled by a single person. The SP props must be stacked off the ground on leveled supports, and they should be stacked one on top of another. Then, they must be tied off using two or three straps secured against several wooden blocks. 17

18 LIFTING MATERIAL The props must be lifted or lowered by hoist to the different floors (or the different heights) in packages that are strapped on both ends. These packages must be suspended by slings fastened to the tower crane hook. Check safety hooks and slings before lifting or lowering the Props. Never lift by the straps. Handling packages or pallets with a single sling can cause material to slip with respect to their centre of gravity. This can cause material to fall from the package. Transit is forbidden under hanging loads or in areas where machinery is operating. 18

19 CRITERIA FOR ELIMINATING NON-VALID PARTS Provided below is the criteria for identifying props that are considered not valid for use because they be a cause of risk of accidents to the operators who are handling the material or a risk of breakage of some part on the prop when it is loaded. Deformations: outer tube with large dent or deflection. Poor condition: inner or outer corrosion. Check if any original component of the prop is missing and if all of them are ready to use: the pin, the collar nut NO YES Do not replace any of the prop s components with components from other products. 19

20 General safety tips RECOMMENDATIONS The prop support must be horizontal with a flat surface and stable base. The prop must be plumbed. YES The load applied over the prop must be vertical and centered. Horizontal loads must not be exerted on the prop. YES Only single props must be used between the support and the load. It is not advisable to join these together in order to use them at greater heights since this may lead to collapse and decreased working load capacities. 20

21 PREVENTIVE AND CORRECTIVE MEASURES As with all construction material, handling the SP props implies a series of risks. The preventive and protective measures to be taken when assembling and handling the props are given in detail in this section. If an assembly project exists, always follow the instructions strictly. If not, follow the assembly process as described in the product user s manual. Follow the manufacturer s general instructions at all times. Follow internal safety standards at all times. The props must be used appropriately, respecting the load limits, plumbed and with stable support. When height of prop is exceeded, an ancillary shoring system must be used. Personal protective equipment must be used at all times. All workers will be provided with the personal protective equipment and must know how to use them. Personal protective equipment should include, at least: - Hard hat - Safety footwear - Gloves - Tool holder belts Other personal protective equipment should be used depending on the site guidelines, based on risk assessments. If necessary, an anti-fall harness, lifeline, protective goggles or masks, hearing protection, breathing masks, reflective jackets and any other element required in the relevant occupational health and safety guidelines shall be used. Do not work with formwork when wind speed exceeds 60 km/h. It is recommended that no more than two props be carried at once by a single man, to prevent over stressing. Thoroughly inspect the props after the assembly is complete. Respect the distance between props in accordance with the project. Respect the load limits that can be supported by the specific props as provided in the loads chart. The load applied over the prop must be vertical and centered. Horizontal loads shall not be exerted on the prop. Check the formwork and the props assembly before pouring concrete. Pour the concrete from a height that does not produce sudden movements on the formwork and props. Avoid the sudden emptying of the bucket on the formwork. Check the state of the props before undertaking any disassembly work. After stripping stack the props neatly. The formwork should be stripped and recovered only when the concrete is strong enough. In case of post-tensioned slabs, do not strip or remove any prop before post-tensioning without express approval of the project management. LEGAL REFERENCES AND STANDARDS ON HEALTH AND SAFETY IN THE WORKPLACE AND ENVIRONMENTAL RISKS Council Directive 89/391/EEC on the introduction of measures to encourage improvements in the safety and health of workers at work. Council Directive 89/656/EEC on the minimum health and safety requirements for the use by workers of personal protective equipment at the workplace. Directives 89/655/EEC- 95/63/EC /45/EC concerning the minimum safety and health requirements for the use of work equipment by workers at work. Council Directive 92/57/EEC on the implementation of minimum safety and health requirements at temporary or mobile construction sites. Council Directive 90/269/EEC on the minimum health and safety requirements for the manual handling of loads where there is a risk particularly of back injury to workers. Council Directive 92/58/EEC on the minimum requirements for the provision of safety and/or health signs at work. 21

22 Components and accessories CODE WEIGHT (kg) CODE WEIGHT (kg) SP Props SP-30 prop SP-35 prop SP-40 prop SP-50 prop SP-30 prop P SP-35 prop P SP-40 prop P SP-50 prop P Normal prop 1.75/3.1 Normal prop 2.1/3.5 Strong prop 2.1/3.65 Strong prop 2.35/4 Strong prop 3.65/

23 CODE WEIGHT (kg) CODE WEIGHT (kg) ACCESSORIES Prop bracing clamp Normal prop nut Strong prop nut Clamp SP-EP ,6 Normal prop regulator Strong prop regulator Right angle coupler 42/42 Swivel coupler 42/ Normal prop pin Strong prop pin Tripod 42-87mm Right angle coupler 48/48 Swivel coupler 48/ Right angle coupler42/48 Swivel coupler 42/48 Right angle coupler 64/

24 ULMA C y E, S. Coop. Ps. Otadui, 3 - P.O Oñati, Spain T F FAM93