EFCO FORMWORK PDF

EFCO offers formwork and shoring solutions for all types of concrete construction projects. Jennings, serving as the chairman and CEO of the organization. EFCO is known worldwide for high quality and innovative products and engineered solutions for concrete forming and shoring construction projects. The EFCO engineering team is the leader in the industry for solving some of the most challenging project opportunities in the concrete forming industry. EFCO field supervisors provide job site assistance with formwork assembly and cycling, using the EFCO drawings, and they assist with the development of methods and procedures to promote safety and productivity. The product range includes handset, radius and heavy duty formwork girders, column formwork, various shoring systems, a variety of slab formwork systems, aluminum posts, jump systems, self climbing systems, tie systems, services, software and training.

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As buildings grow ever taller, bridges ever bigger and designs ever more complex, these impressive projects rely upon increasingly sophisticated falsework and formwork solutions. Before the main construction began, a full-size sample panel with reverse curvature and slope was constructed on site. This was done to demonstrate buildability, wall geometry, surface finish and colour matching with the specialist lining material being used. Peri worked to a 3D design model developed by structural engineer specialist Arup.

By working with 3D drawings, Peri said it was easier to gauge the amount of structural support required to facilitate the build. In this way, 1, bespoke panels could be created.

Since the outer walls were not self-supporting, shoring props had to be used to hold them up until the roof was installed. Peri Up shoring was used as the scaffold support for the wall formwork.

With more than 1, tonnes of equipment, 1, drawings and 1, bespoke panels on site, Peri said strong internal communication was of the utmost importance. The simulations indicated that the shortest pier, at 31m, would be most affected by seismic forces, while the long bridge deck and the tallest pier, at m, would be more susceptible to creep, shrinkage and temperature effects, as well as wind loads.

Based on these results, only the four tallest piers are being cast monolithically with the deck sections. The balanced cantilevering superstructure sections are being constructed by Doka towards each other from pier head to pier head.

The four cantilever forming travellers CFTs work in pairs, to keep the horizontal forces acting on the bridge piers in equilibrium. The travellers can handle varying section lengths from 3 to 5m and concrete weights of up to tonnes.

The system climbs hydraulically, anchored to the structure at all times by guiding shoes, allowing it to continue climbing in windy conditions. A viaduct project in the UK demonstrates how the increasing popularity of off-site construction techniques, far from marginalising falsework and formwork companies, is providing plenty of work for them — if not more. According to US-based EFCO, this is because methods for the placement and support of pre-cast units on site often require at least as much temporary work as an equivalent cast-in-place solution.

It features a composite deck consisting of heavy steel members with pre-cast slabs and parapet beams. The pre-cast elements are then connected to complete the deck with an in-situ stitch pour. The challenge for EFCO was to design and supply a system of beams that could support the 6.

Adding to the complexity of the job, the bridge had a tight tolerance and complex geometry. First, adjustable beam members were provided and attached to the pre-cast units before they were transported to the project site. The beams had fine-adjustment threaded units that allowed for each member to be set to the correct angle before being lifted into position on the bridge. At the same time, twin support beam members were attached to the pre-cast slab on the bridge deck and adjusted to provide accurate bearing locations for the landed units.

Once each unit was placed, the crane was released and checks were made on the accurate final position of the pre-cast concrete. The support members then remained in place until the reinforcement for the stitch pour had been placed, the concrete pumped and adequate strength achieved for the structure to be fully self-supporting.

In total, pre-cast units weighing a total of 1, tonnes were placed on the bridge using 40 sets of support beam assemblies that were re-used and adjusted for geometry as they cycled down the structure. The footbridge at the Haguenau railway station in France was built using Paschal formwork. A reinforced concrete footbridge was recently constructed at the Haguenau railway station in France using formwork from Paschal.

The 98m-long bridge has four piers and two abutments. The pier foundations had a thickness of between 0. The universal formwork is based on a modular design concept by Paschal and it was said to minimise the need for on-site adaptations. The entire building was covered with multidirectional Brio scaffolding to refurbish more than 4,m 2 of space, both externally and internally. BIM technology was used to help the various collaborators interact effectively. It allowed Ulma to plan each section and register them all in a single place that was accessible to all parties.

For the north and south ends of the building, Brio Perimeter scaffolding with one-metre cantilevered extensions was used to reach a maximum height of 33m and cover a total surface area of 1,m 2. Digital planning was also used by Layher in a Swedish sugar factor project recently. A concrete silo with a height of 69m and a capacity of up to 80, tonnes of sugar was built by German contractor Heitkamp Bauservice using the slip-form method.

The silo wall grew at a rate of 2. When the individual components were not forming a closed structure, the tonne mass required high-strength support. It is important to keep on-site inventory to a minimum for reasons of efficiency and safety. The flat slabs for the new office building were supported by columns with drop panels. The MevaDec slab formwork was then assembled around the columns. Its grid-free assembly allowed it to be adjusted to the required geometries, minimising filler areas.

Continuous adaptation to different layouts could be achieved by simply changing the assembly direction of the primary beams. A key feature of the system was said to be its pre-defined prop grid, which minimises the number of props required and thereby helps to reduce the quantity of material needed on site.

Safety is of course an important concern too, and under the Austrian Regulation on the Protection of Construction Workers, suitable guard railings were required for elevated work locations at heights of more than 2m.

However, at the same time, it was important that these collective safeguards did not obstruct the works. Delivered directly to your inbox World Construction Week features the pick of the breaking news stories, product launches, show reports and more! New hydrodemolition product features help reduce noise while being easier to transport and set up. Access International. Concreto LatinoAmericana. Concreto Latino Americana. Construction Europe. Diesel Progress International.

Diesel Progress. International Construction. International Construction Turkiye. International Cranes and Specialized Transport. International Rental News. New Power Progress. Site powered by Webvision Cloud. Skip to main content Skip to navigation. Show Fullscreen The footbridge at the Haguenau railway station in France was built using Paschal formwork. Construction Europe - May Download the latest issue Subscribe to the magazine View the issue archive.

Newsletter Delivered directly to your inbox World Construction Week features the pick of the breaking news stories, product launches, show reports and more! Topics Construction doka efco Europe Layher meva paschal peri Ulma.

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Falsework & Formwork: Taking new forms

As buildings grow ever taller, bridges ever bigger and designs ever more complex, these impressive projects rely upon increasingly sophisticated falsework and formwork solutions. Before the main construction began, a full-size sample panel with reverse curvature and slope was constructed on site. This was done to demonstrate buildability, wall geometry, surface finish and colour matching with the specialist lining material being used. Peri worked to a 3D design model developed by structural engineer specialist Arup.

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