Layher Allround Scaffolding with aluminium platform stairway up to 51-metre height at a cement plant in Rajasthan

Layher produces high-quality scaffolding systems in Germany. Layher has worldwide presence with more than 40 sales subsidiaries. The products are being used by industries like construction, cement plant, chemical plants, power plants, at shipyards and offshore.

Layher Products and Services
Layher’s present product characteristics and services help customers achieve long-term success and increase the profitability of their companies. The Layher Allround Scaffolding has been established as a synonym for modular scaffolds on the market. The Allround Scaffolding offers unsurpassed versatility to be used in construction sites, chemical industry, power plants, aircraft, shipyards, event sector, theatres and arenas.

Layher Allround Scaffold in cement industries
Cement silos are either part of the production process in integrated cement plants or they can also be the key part of distribution terminals. For the cement industry these storage silos are very important because this allows a continuous production while the cement dispatch can be discontinuous. Largest cement storage silos in the cement industry are built with diameters up to 27 m while typical silos for the storage of cement have typically 27 metres in diameter and 84 metres in height. For additional stability of the structure, additional strengthening required for future application. It is clear that such silos require an efficient and trouble-free emptying. Accordingly highest requirements are given to overall plant reliability and practically 100 per cent availability. To achieve a high availability flow problems have to be strictly eliminated. From the theory of flow in silos it is well-known, that this can only be achieved with mass-flow. For cement silos the central cone version has become the predominant design. On the one hand the central cone has a displacement function for the material in the silo; on the other hand several designs especially for multi-compartment designs become possible. Multi-compartment silos are used for producing special cements from a number of main and secondary cement components.

Construction of circular structure is only possible by Layher Allround scaffolding due to 8 different connections possible with variable choice of angles, it is a simple task to erect scaffolding around curved surfaces.

Not only has the shape of the building reminded of a crystal, but also the surface of the façade. The Local Scaffolder solved this task technically with the Layher Scaffolding and Technical team: section by section they adapted the scaffold to the slope of the building with various brackets on the inside and then shifted it inwards by one scaffold width. Scaffold was anchored with the help of Layher Anchoring equipment, even the increased wind loads could be transferred without putting unnecessary strain on the structure.

The construction of scaffolding for maintenance of Silo is a challenging task due to wind pressure. The selection of support systems (scaffolding with permanent structure) and avoid obstructions by bracket or cable tray around the silo. Layher Allround Scaffolding systems provide unique, bolt-less connection technique, the patented Allround joint has replaced the conventional scaffold technique especially in construction of scaffold for silo up to height 51 metres and 1.57 metres width. For additional safety when working at height considered stair tower at two locations. Allround Scaffolding can accommodate all types of high loads and is the ideal system for all kinds of support scaffolding. Allround scaffolding has an efficient solution to deal with all challenges, regardless of whether they involve false work at great height or round inner scaffolding.

It needs to be built in a modular scaffolding system for maintenance of silo and high-rise industrial structure. Additional safety of factored considered due to wind force as per locations and height of scaffolding.

Anchoring is essential for the stability of the scaffolding must be continually installed as scaffolding assembly progresses. Only provide anchoring on sufficient strong components, if necessary testing the anchoring surface by pull – out tests. A check can be dispensed with if sufficient load bearing capacity is assessed on the basis of professional experience and the service value of the anchoring force does not exceed 1.5 KN or in the case of reinforced concrete.

Connect Horizontal Ledger with two standard couplers with very wide scaffolding structures, it must be necessary to anchor with the aid of a horizontal ledger. The selection of anchoring configuration depends on the bay width, the load on the scaffolding, live load, wind load and the structural height of the scaffolding. As the load on the scaffold increase, the anchoring configuration must become denser in order to pass the force safely into the anchoring surface. The dense the anchoring configuration shall the lower the force on the individual wall ties.

Authored by__
Mithilesh Kumar, Director,
Layher Scaffolding Systems Pvt Ltd
Tele: +91-11-26162185/86
E-mail: mithilesh.kumar@layher.co.in, info@layher.co.in
Web.: www.layher.co.in