Ronda Beltway - Malaga

Date: 2010.
Type of work: Civil Work

These projects were carried out in the first quarter of 2010 and Alisply Walls, Alisply Universal, CL-40 Falsework and Multiform formwork equipment was provided to improve access to the beltway of the town of Ronda in Malaga. The versatility of the latter system was the key to making the complex Y-shaped piles required. These peculiar structures provided the biggest challenge in this project. The most complicated part of the project were the curved areas with a small radius in the Y angles; however, Alsina´s technical development efforts paid off and everything came out perfectly, leaving the client fully satisfied with the work that was done.
Alsina systems: Alisply walls, Alisply multipurpose, Multiform

Special Piles on A-23 Motorway

Alsina performs a job site offering an special solution of Metallic Piles. The most singular of the work is the shape of the piles. This site consists in a viaduct of 350 meters in length supported by three piles of 32, 31 and 25m high.
The shape of the piles is conical, the inferior diameter is 4.5 m and the superior diameter is 3m, for every formwork setting we need to make a custom mold.
Each pile form was made in 5m high and 6 different molds were necessary to form the entire pile of 32 meters high. Due to this we used those special forms in the other two piles of 31 and 25m high.
For climbing the pile we used the C.-240 Climbing Platform was used of 240 staked radially to the stem pile which were accessed through a Site stair tower braced on the pile.

Alsina systems: Alisply steel columns, C-240 climbing platform, Site stair tower

The new Human Evolution bridge in Burgos (Spain)

Date: 2010
Type of work: Civil Work

This new bridge replaces the already demolished Gasset Bridge that crossed over the River Arlanzón where it passed by Burgos last century.
The client’s requirements for works execution were a highly visible finish and to complete works execution within six months.
The bridge deck is 56 metres long, with variable width. The abutment start is 31 metres wide and reduces to 22.50 metres at the central section minimum part and 26 metres maximum part.
The most significant bridge characteristic is its geometry because its form varies from all points of view. A longitudinal section cut has a variable edge, commencing at 70 centimetres at the abutments and, in the same way as the central section, its thickness increases on the pier supports with a 140-centimetre edge. When the bridge is seen from one side, there are laterals with double curvature where they join on the portico capitals.
Several execution options were examined and the Special Parts Department finally decided to execute the project using fibre moulds. Encofrados Alsina delivered a test section in order to verify and reaffirm that the proposed solution was both valid and optimum for the works.
Alsina systems: Ar-80 shoring system, Multiform

BU-30 Beltway - Burgos

Date: 2008-2010.
Type of work: Civil Work

Several structures of major technical complexity are being built on the BU-30 beltway in Burgos. Structure 5: Comprising 2 tracks of insitu panel with gull wings of approximately 198 linear m each track. This was all done using fixed falsework. Structure 6 Construction of in-situ box beam, with a 7% cant and a small floor curve. 274 linear m viaduct made in 6 sections, where each section is made in 2 construction phases (1st phase bottom slab and gables, and 2nd phase, panel wings + top slab box beam). This is the most complex structure in terms of assembly as well as execution. Structure 7: In-situ gull wing overpasses of approximately 58 linear m each track. The complexity of the structure lies in the fact that the panel is skewed and there is a slope between the piers and the adjacent piles, which requires the construction of gantries with a light shaft of approximately 10 m to separate the slopes. This is done by installing 12 m long HEB 400 beams. In addition, on one of the piers - due to the small amount of free space - a foundation is made to support the 50 ton release wedges (on top of which the metal profiles are installed). Structure 3.3: In-situ gull wing overpass. Overpass of approximately 122.5 linear m, where Alsina has the longest concreting phase of the structures made with approximately 80 linear m. In addition, due to the 2 roads to be prepared 2 zones have to be separated with gantries, although in this case the distance to be made is 8 m. After that, the E-1 and E-7.2 structures are made (circular and symmetric structures, 32 m each). In this project, Alsina demonstrates the logistic, technical and service capacity it can offer in such ambitious projects.
Alsina systems: Alisply walls, Multiform, Site stair tower

Rocío Highway - Seville

Date: 2009
Type of work: Civil Work

Construction of an overpass on the Variante del Rocío bypass of the A-483 road in Seville. The piers have a marked deviation from the longitudinal axis of the deck (exactly 52 degrees). The deck is isostatic, reinforced, with three spans, with a total length of 51 m. The maximum thicknessis 1.10 m (without voids), the total width is 15 m, and the weight is 25.3 tonnes per linear metre. The average clearance of the deck is 6 m. The central load-bearing pillars are solid circular pillars with a diameter of 1.10 m. Over the support enclosure, and due to the large loads being supported, struts of mass concrete were made, upon which the legs of the shoring system were rested (the shoring system upright carrying the heaviest load transmitted a load of 6.3 t to the foundations). In this way we were able to guarantee admissible stress and deformations on the terrain. The structure of the formwork boat and the safety elements were pre-assembled on the ground, along with the partial lining. In total, 16 standard, full-section boat ere assembled, plus 8 more special ones with variable geometry (for closing off the deck against the piers). These were subsequently hoisted up and place over the falsework with the help of a mobile crane. The entire assembly of the overpass took 10 days, with a fast working pace being achieved.

Alsina systems: Alisply walls, Multiform

R-3 Motorway - Madrid

Date: 2009.
Type of work: Civil Work

The junction of the R-3 motorway with Avenida de Daroca and the extension of Calle O´Donnell (M-23) is a project designed to facilitate access to Madrid´s city centre for residents of the Vicálvaro neighbourhood, improving urban mobility around the junction of the R-3 motorway with the M-40. Alsina´s C-40 shoring system was chosen for its adaptability and lightness, helping to achieve rapid and effective results. The multi-directional assembly was carried out by Alsina. This job required fairfaced finishes for the slabs, which was solved using phenolic boards and wooden listels of the same thickness, providing a satisfactory finish for the client.

Alsina systems: Alsina cl-40 shoring system

Bridge over the Danube: Vidin-Calafat - Romania

Date: 2007-2013.
Type of work: Civil Work

Construction of various piers and retaining walls. The most complicated pier, A2, is designed to have a fair-faced finish. Alsina´s technical department solved the curve of the wings by using Alisply Walls, wooden shims and articulated rear buttresses. This solution has yielded optimum results.

Alsina systems: Alisply walls, Site stair tower, Reinforced scaffold

A-21 Jaca-Pamplona Motorway

Date: 2008-2010
Type of work: Civil Work

Construction of a 3.5 km section of the A-21 motorway between Jaca and Pamplona. Alsina built is made the piers, the piles and the slab. The overpass is 72 m long and 11 m wide, with an average height of 6.4 m and a works road to allow for the passage of earth-moving trucks. The slab of the structure has both a cant and a curve, for which reason the settingup of the falsework had to be perfect to allow for the subsequent perfect fi t of the boat, which were previously assembled on the ground. When stripping the stripping of the formwork systems, the vessels were left fi xed to the deck of the bridge using Dywidag bars in order to facilitate the dismantling of the falsework. Subsequently, two cranes were used to lower the boat to the ground, where they were dismantled. All of the project deadlines were met and the client was fully satisfi ed with the systems and the assembly service provided by Alsina.

Alsina systems: Alsina cl-40 shoring system, Multiform, Reinforced scaffold

Overpass in Toses - Girona

Date: 2009.
Type of work: Civil Work

Execution of an overpass to replace a RENFE level crossing in the village of Toses (Girona). The platform section is a 9 m wide (polygonal base) and 1.2 m thick reinforced slab that forms an “S” in plan view with transverse change in cant (that coincide with the change in curvature). The maximum cant is 6%, where the longitudinal slope of 13% formed by two isostatic vanes separated by a circular central pile with a diameter of 1 m.The metal gantries save “lights” of 6.5 m and 9 m to save the railway tracks and a small watercourse that supplies a local fi sh farm. Despite of the complicated geometry of the platform and the diffi cult pegging out and assembly of the gantry, Alsina carried out the assembly in just 15 days and the result was satisfactory.
Alsina systems: Alisply walls, Alisply steel columns, Multiform

Piles for overpass in Otopeni - Romania

Date: 2008/11.
Type of work: Civil Work

The work is on the site of the Bucharest ring road (Romania) where an overpass over the railway line is being built.Cable-stayed bridge with two 50 m tall central piles. Alsina is making the pile caps with Alisply, the 2 piles and the 2 abutments with Alisply, Multiform and AR-80 Shoring. Alsina technical department
Alsina systems: Alisply walls, Multiform

Vilablareix Bridge - Girona

Date: 2009.
Type of work: Civil Work

Expansion of an existing bridge executed with curved formwork. Up to the height of the side walls, formwork was used on two faces and for the key of the roof, only on one face. With respect to the formwork, as the level increased, the separation between the beams increased. The Multiform braces were positioned as met al trusses to transmit the loads to the shoring system and thus to the ground properly. The formwork sections were 3.60 m wide and the legs of the shoring system were 2.07 m apart.

Alsina systems: Multiform

Ortuella Road Link - Vizcaya

Date: 2008/10.
Type of work: Civil Works

The Ortuella road link is part of the work on the Supersur dual carriageway (ring road south of the Bilbao motorway) that as it passes through the town of Ortuella forks into several roads forming a junction.One of the most relevant aspects of this work was the special solution provided by Alsina for the resolution of the piles combined with the Alisply Wall with special steel.


Alsina systems: Alisply circular, Alisply walls, One-sided walls 3-9 m, Alispilar, C-160 climbing platform, C-240 climbing platform, Reinforced scaffold, Site stair tower

Cocentaina dual carriageway - Alicante

Date: 2009.
Type of work: Civil Works

The central dual carriageway between Valencia and Alicante is the culmination of the A7 and will connect these two provinces passing through the inland regions. Up to now this dual carriageway was interrupted as it passes through Alcoy, Cocentaina and Muro de Alcoy due to the complex orography of the area.To make the capitals the new SCAP system from Alsina was used. Despite the large dimensions of the capitals (3 m high and 14 m long in piles 35 m high), the high
versatility of this system meant these structures could be built with no problems.The system is recovered by removing all the formwork together (brackets, One-sided Walls and Multiform) at once, simply by removing the pin that joins the anchors. This greatly accelerates the change of the whole system from one capital to other.
Alsina systems:

Bypass of Lugoj - Romania

Date: 2008/09.
Type of work: Civil Work

Implementation of two bridges over two roads and a bridge over a river. The total length of the bridges is 350 m (150 m, 100 m and 100 m approximately). For the implementation of the abutments, Alsina supplied its Alisply Walls system, which helped to fulfi l the scheduled deadlines. The piles were implemented thanks to the Metal Piles system and the CL-40 Shoring system was assembled for the lintels. Thanks to itsgreat versatility, it allowed sorting out all the arising difficulties. Before starting with the project the Technical Department of Alsina produced a planning for all the lintels so the client could produce the different structures, optimising thus the material on site. This meant a saving of time and expenses for the client, who qualifi ed the services provided by Alsina as excellent.

Alsina systems: Alisply walls, Alisply steel columns, Alsina cl-40 shoring system, Site stair tower

Bridge in Campello - Alicante

Date: 2008
Type of work: Civil Work

Bridge implemented at the town of Campello over a newly built park, allowing vehicles and pedestrians to cross over. In addition, this bridge links the upper area of Campello with the beach. The viaduct is implemented with the Alsina AR-80 Shoring system and Multiform formwork system. The deck of the bridge consists of a light-weighted concrete slab shaped as the belly of a fish with a 1.400 m2 area.
The Site Management was completely satisfied and assessed very positively the services and high quality equipment supplied by Alsina. Finally, the Company also carried out the implementation of the large monumental fountain under the bridge, built by means of the Alisply system.

Alsina systems: Alisply circular, Alsina cl-40 shoring system, Multiform, Site stair tower

MU-31 Highway - Murcia

Date: 2009
Type of work: Civil Work

The Project for the new MU-31 highway, which runs along the southwest of Murcia city with an approximate length of 4,1 Km, started at the beginning of 2009. The Alisply Walls system was used for the implementation of the side shuttering of the capitals of the E-5 structure. This system was in its turn resting on the lower platform of the SCAP equipment (System for Capitals). Thanks to the set of descending wedges the system is made up of (with a 50 tons service capacity for vertical stresses), once the capital is concreted all the material can be unloaded, thus
facilitating the form release operations. Once the formwork is released, the whole system can be placed directly on top of the anchors of the next pile without having to carry out previous tasks, which increases signifi cantly the productivity rates of the capitals formworking/formwork release operations. Alsina is also implementing the E-7 structure, which consists of two parallel decks supported by a total of 40 piles.

Alsina systems: Alisply walls

Bridge in Bayacas - Granada

Date: 2007/08
Type of work: Civil Work

Alsina started this project by supplying Alisply Walls systems for the footings of the piles and abutments. Subsequently, Alsina supplied the material required to implement, climbing simultaneously, one pile and one abutment, since there were two abutments over 9 m high and two piles over 20. The abutments had sloping buttresses, which were implemented by means of the Alsina system winning the 2007 Innoval-sina Award (adjustable wall bulkhead). Access Stairways were used for the implementation of the abutments. The approximation slabs were subsequently implemented, fi rst the footing of the piles and afterwards the piles with Alisply universal at 12 m height with Site stair tower and last the beams and slabs with Vistaform slabs system on top of a CL-40 Shoring system.
Alsina systems: Alisply walls, Alisply multipurpose, C-160 climbing platform, Vistaform slabs

Asma river Viaduct - Tarragona

Date: 2007
Type of Work: Civil Work

The project consisted of the implementation of the abutments on each side of a viaduct running over the river Asma at the town of Falset in Tarragona, and also of a canal for the circulation of water with Alisply Walls. In addition, several lintels placed at a height of approximately 12 to 15 m were also implemented. To that end a Shoring
system that included an Access Stairway was designed with the aim of getting a fl at surfaceas “bottom” of the lintels. This system was used in the same way in each pile. The maximum difficulty of the whole project consisted of the superelevation of the structure. Nevertheless, both, the Alsina systems and the help provided by its Technical Department, were crucial to finish the work as planned. Subsequently, the side shutters of the lintels were also implemented with the panels of the Alisply Walls system.
Alsina systems: Alisply walls, Alsina cl-40 shoring system, Site stair tower

C-17 Underpass - Barcelona

Date: 2008
Type of work: Civil Work

Performing the C-17 road desviation passing by Montcada i Reixac. For approximately 3 km, the height of each of the two lanes suffered a decrease to allow communication with both sides of the roadway at the field level.
To accomplish this major work, Alsina built the buttresses for the railway passage, several overhead roundabouts with porticoed pass for the movement of heavy machinery. This was solved with the AR-80 Shoring System and the Multiform Formwork, which also facilitated the performing of the straight underpasses.
Besides the successive underpasses, Alsina also made some reservoirs to collect water.

Alsina systems: Alisply walls, One-sided walls 3-9 m, Alispilar, Alsina cl-40 shoring system

Overpass in Cubelles - Tarragona

Date: 2009
Type of work: Civil engineering

Overpass using a section head hammer of approximately 10 m wide and a 60 m light. To run the central part of the pass it was used
AR-80 Shoring System and then the Multiform formwork was supported with a opening of 5 m. The rest of the structure, except the edges,
was carried out with Lightweight CL-40 shoring system. In the edges it was used the 1.5 m Alsina post-shore with Vistaform slabs because of space problems. The final result was very satisfactory and
the customer praised the effi ciency of the Alsina systems that were used in this project.
Alsina systems: Alsina cl-40 shoring system, Multiform, Alisan post-shore 1,5-6

Fauna passage at Abia de la Ovispalia - Cuenca

Date: 2008
Type of work: Civl Engineering

Fauna passage implemented at the town of Abia de la Ovispalia, Cuenca. The structure has a maximum height of 9,6 m and supports a 1 m thick concrete slab. For its implementation the high load AR-80 Shoring System was used together with the Alsina’s Multiform modulable system. The primary beams of this system consist of DUPN-120 and the secondary distribution is carried out by HT-20 wood beams. The ribs and the walls supporting the 9,9 m high slab were implemented with Alisply equipments in just one go with the help of 9 m Aligners and no need of climbing sections. Both, the form and form release processes (with tractels) were carried out with Alsina equipments. In this way the safety requirements established by the Client Representative on site were fulfilled and the Client was completely satisfied.
Alsina systems: Alisply walls, Multiform

South Leg Abutments - Barcelona

Date: 1997/99
Type of work: Civil Engineering

Project of great expanse implemented with standard Alsina systems. All the pile caps and “hidden” piles were implemented with Alisply. Due to its great versatility, the Vistaform system was used to implement the special piles, the lintels and some of the exposed abutments. The system chosen for the implementation of the rest of the abutments was the Alisan Scaffold, supplied for the passages together with phenolic lining, Alisan boards and HT-20 Beams. The high productivity provided by the Alsina systems allowed the project to fulfil the tight completion periods set by the Site Management.
Alsina systems: Alisply walls, Alisan shoring system, Vistaform slabs

Potosí Bridge - Barcelona

Date: 1998
Type of work: Civil engineering

Civil work of great significance built to reinforce Barcelona’s connections with its metropolitan and commercial areas.
This bridge of great dimensions and complex implementation was designed for traffic but at the same time it tries to improve its background by raising its urban, civic and cultural tone. In this work Alsina implemented the complex abutments and a large central pile. The panel used was a mixed type composed by a metal frame on which the mass of concrete was made.

Alsina systems: Alisply walls, Springform columns

Encinas Reales-Benamejí stretch, A-45 - Córdoba

Date: 2008
Type of work: Civil engineering

Alsina performs the implementation of abutments on piles and on reinforced earth in an overpass. The client decided to use Alsina’s Metal Piles System due to the good quality of concrete finish it provides.
A Light Shoring System was subsequently assembled for the implementation of a more than 1,5 m thick abutment, together with the safety railings adapted for this particular project. One of the significant details of this project was the application of Alispilar System for the implementation of the abutment at places where, geometrically, because of the thickness; it was not possible to use Alisply Panels. Finally, the Client congratulated us on the great result.

Alsina systems: Alisply walls, Alispilar, Alsina cl-40 shoring system

Guadalajara Northern Ring Road – Madrid

Date: 2004
Type of work: Civil engineering

Alsina participated in the construction of an essential communication road for the city of Guadalajara. Alsina supplied equipment for building the piers of the bridges, using our Alisply Walls system.
The profitability and the excellent finishes offered by the Alisply system allowed the project deadlines to be met, while providing the perfect quality of a fair-faced white-concrete finish.

Alsina systems: Alisply walls, Alisply multipurpose, 3-9 m aligners, 3-9 m aligners

C-55 overpass Manresa – Barcelona

Date: 2008
Type of work: Civil engineering

Two overpasses were built on the C-55 road in Manresa (Barcelona). In the first phase, the piers of both structures were built using Alisply Walls, using the shoring system to assemble the metal rods. Then, the two post-tensioned covers with a bridge cross-section were built using Multiform formwork and braced with AR-80 Shoring system. The two covers are identical (except for their heights). They have a length of 27 m, a maximum thickness of 1.3 m, a width of 11.5 m and a transverse cant of 2% in the bends. To access both structures, an access ladder with a height of 8 m was installed. A deadline of fifteen days was given for formworking each structure.

Alsina systems: Alisply walls, Multiform, Reinforced scaffold, Site stair tower, Reinforced scaffold, Site stair tower

Dual carriageway between Segovia and Valladolid – Castile and León

Date: 2006
Type of work: Civil engineering

Dual carriageway with prefabricated overpasses and viaducts with in-situ lintels built using CL-40 Shoring system. This shoring system combined perfectly with the access systems which consisted of Site stair towers with considerable safety measures. A notable element was the use of the Alsipercha system to prevent falls from height during the process of boarding the lintels at a height of 20 m. The operators and site supervisors gave a very positive assessment of all the safety measures provided by Alsina.

Alsina systems: Alisply walls, Alisply steel columns, Alsina cl-40 shoring system, Reinforced scaffold, Site stair tower, Alsipercha, Reinforced scaffold

Beiro River Cut and Cover – Granada

Date: 2007
Type of work: Civil engineering

Around 400 m of cut and cover were built, consisting of a vault with a 2.30 m interior radius on a two-faced wall. The route is on a gentle slope (in the water evacuation direction) and also has a number of bends which complicate the work. Alsina proposes making the route without any bends, replacing them with arrises and straight sections, thus simplifying the construction. Once the wall was made and the orifices of the blades were sealed, we continued with the vault, made in sections of 10 m per set-up. Each of these sections consists of four independent CL-40 shoring system towers, braced in pairs using tubes and flanges. Each tower has three Vistaform Curved Walls interior panels attached to it (radius ≤ 2.50 m). Otherwise, Alisply Circular can be used: one central panel on the spindles and two lateral panels, with two outer panels on the top at the sides, leaving the centre free for concreting. The work was conducted in the upwards direction as decided by the construction company.

Alsina systems: Alisply walls

Z-40 ring road – Saragossa

Date: 2006
Type of work: Civil engineering

Most of the work was done using Alisply Walls. One notable element is the custom mould that Alsina had to design for the capital. Also of special importance is the climbing platfform wall that had to be built. This wall was climbing platfform in two goes because the corbel that supports the run-on slab had to be formed. This corbel had a changing height, and was therefore made with a horizontal corner and a small wooden negative frame, with the panels gradually being added or removed at the bottom to ensure the necessary height. Finally, shoring system was used for the underpasses.

Alsina systems: Alisply walls, Alisply steel columns, Alsina cl-40 shoring system, C-160 climbing platform, Vistaform slabs, Site stair tower, Reinforced scaffold, Site stair tower