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SANT JOSEP BUILDING REFURBISHMENT

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"The house from the roof". European Steel Design Awards 2011.

"The house from the roof". European Steel Design Awards 2011.

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  • 1. ECCS BiannualEuropean Steel DesignAwards 2011SANT JOSEP BUILDING REFURBISHMENTIN VALL DE NÚRIA 1 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 2. “The house from the roof”Project Description :Technical dataWhere is Vall de NúriaBackgroundThe buildingChronologyDescriptive reportPhotographs, drawingsAcknowledgements 2 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 3. 1 – TECHNICAL DATAPROJECT TEAM:Owner: Ferrocarrils de la Generalitat de Catalunya (FGC)Address: Cardenal de Sentmenat 4, 08017 Barcelona, SpainArchitect(s): A&M ArquitectesAddress: Trafalgar 10, 1º and 2nd D, Barcelona , SpainSteelwork Contractor(s): ESTRUCAD METÀL.LICS SAAddress: Alemanya 37 – 43, Pol. Ind. Pla de Llerona, 08520 Les Franqueses delVallès, Barcelona, Spain 3 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 4. NAME OF THE PROJECT: SANT JOSEP BUILDING REFURBISHMENTLOCATION: VALL DE NÚRIA, Girona, SpainPROGRAMME OF CONSTRUCTION:PHASE 0 : Structural reinforcement and roofPHASE 1 : Outdoors rehabilitationPHASE 2 : Indoors rehabilitationCOMPLETION DATE: 31 / 12 / 2010GENERAL DIMENSIONS: 60 x 13 x 21 mLAMINATE STEEL TOTAL TONNAGE: 350 Ton 4 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 5. 2 - WHERE IS VALL DE NÚRIAVall de Núria is located in themunicipality of Queralbs,Ripollès, in the heart of thePyrenees. Many fountains andstreams are born in the valley,where there is an artificial lakeand the Sanctuary of the Virgin ofNuria, with a church that wasopened n 1911.The sanctuary is situated at an altitude of 1964 meters above sea level, at the placewhere three valleys of nearly 3000 m high converge. Due to its geographical locationand climate, typicall high alpine flora and fauna are found there. Endemic plants andanimal species from the Pyrenees are found there.The valley can only be accessed by foot, following one of the mountain trails thatlead up to Nuria or by the rack railway, which has become an iconic feature of thevalley and the Ripollès region. There is only one more similar rack railway in Spain,which is located in Montserrat.The Sanctuary of Núria is mainly formed by the church and a set of interconnectedbuildings (Sant Josep, Sant Justí, Sant Antoni and Sant Gil), designed by thearchitect Josep Danés and built during the period between 1923 and 1955. 5 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 6. A few later an hotel was added and in 1931, in room number 202, it was drafted whatwould be the Statute of Autonomy of Catalonia after ratified by the voters on Augustthe Second of 1931 and finally approved by the Parliament on the 9th of Septemberof 1932. Soon after, the construction of the Via Crucis began in the path of Coma delClot. It was not finished until 1963. It is characterized by a monumental and diversesculptural style and a surprising characterization of the seasons.3 - BACKGROUNDRailways of the Generalitat of Catalonia (FGC) promotes conservation andmaintenance tasks since1982,when the Generalitat of Catalonia through FGC beganthe rehabilitation and the improvement of Núria´s heritage.The initial interventions aimed to stop the progressive degradation ofinsfraestructures These initial interventions showed serious structural deficienciesthat remained hidden and serious deficiencies in facilities, services andinfrastructure.Sant Josep building is the longest wing of the building. It has been closed for thegeneral public for a long time due to structural deficiencies. During this period it hasbeen a warehouse. All interventions are targeted towards :- The preservation of herotage and historic appearance of the Vall de Nuria- The improvement of communication, accessibility and comfort for visitors.- The improvement of quality in hotel service- The use of geothermal energy and the achievement of the maximum energy rating. 6 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 7. 4 - THE BUILDINGSant Joseps building was conceived as a rectangular building 58.95 x 10.96 m. Itreally is the conjunction of two buildings : the main one, north connected by thefaçade wall with the building of Sant Justí, and the Rectoria, which was added lateron the other facade wall. All of them had ground, main, first and attic floors. TheRectoria also had a low height basement. Side view of Sant Josep buildingStructurally the building was resolved with three galleries: the central one and twoaside, which housed the old cells. The ceilings made of wooden beams with aspecial brick mixture covered all three galleries, and were supported by outside wallsfrom 50 to 60 cm thick and inner brick walls of 14 cm thick. The geometry of the roofconsists on two slopes with an approximately 50% inclination.The structure of the three galleries is repeated on the attic floor, where you canappreciate the proficiency of the ancient master builders in covering the building : 7 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 8. short length wood bars with strut braces are used to form some kind of lattice wherethe central lower pair, the roof of the lower central corridor compresses so the indoorlight can be reduced and with rather scarce sections manage to withstand the load ofthe two slopes roof. The maximum height of the building in relation with the groundfloor level was 12.30 m.5 - CHRONOLOGYInitial stage: structural strength, future structure and new roof execution.Execution: July 2007 - December 2009.Works: Demolition of roof, ceilings, walls and inner partitions.Consolidation of façade walls.New structure with bolted metal framesNew panel roof with nervesConsolidation of land with low-pressure injections.Reduction and basement excavation and implementation of perimeter walls.Phase 1: Outdoors renovation and indoor adaptation.Execution: July 2007 – December 2010.Works: Isolation and improvement of facades with enclosuresRoof slateInner structure holes to pass through installationConcrete frameworksNew metal structure body accessAssembly of spiral emergency stairs in Sant Josep Tester 8 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 9. Assembly of inner metallic stairs- 10 stairs access to attic- 1 main Hotel stairs- 1 access stairs to basement- 1 Body Ladder AccessPhase 2: Internal ReformImplementation: November 2009 – December 2010.Works: DivisionsFacilitiesFinished in generalPhase 3: Furniture, equipment and interiorsExecution: September 2010 – March 2011.6 - DESCRIPTIVE REPORT – INITIAL PHASE STRUCTURAL REINFORCEMENTThe intervention was to solve structural and building problems from the old buildingand at the same time would allow maximum flexibility of spaces, both now and in thefuture.Considering the weather conditions in Núria, it was decided to design thereinforcement with bolted metal structure. The workshop allowed manufacturingspeed and better quality control. The assembly of the structure with high strengthbolts easier control of erection. 9 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 10. The design of the arcade geometry responded to a number of factors:Basement floor : Avoid pillars from descent on this floor so as not to pierce thedouble support, conflicting element from the point of potential entry of water.Maximum freedom of the whole plant and prediction of the location of the geothermalplant.Ground and main floors : Maximum freedom on the ground, where the arrangementof pillars does not involve any functional or visual restriction of space. These plantswould hold public reception, nature workshops, the bar, exhibition halls, etc.Second floor and mezzanine : Maximum high of the ceiling only limited by thedimensions of the building of Sant Justí. Here it is not as important to minimize thenumber of pillars, but must be carefully modular disposed to achieve the maximumintegration with the distribution of future apartments or hotel rooms.All floors : The elevation of pavement on each floor must suit with the building ofSant Justí in order to achieve a functional connection, and also with the covered linkstep to connect with the rest of the Sanctuary Building.Land consolidation : Land should be able to withstand the loads resulting from therehabilitation, allow digging a new basement and secure from runoffs anddecompressions of the terrain. 10 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 11. There were a number of conditioners that hindered the performance with traditionalsystems:The foundations: They were only the continuation of the front wall up to about 1 mdeep. There was material filling with gravel and pebbles before finding resistant layerof rockProximity of the Eina torrent : It was necessary to execute the work from inside thebuilding to minimize the impact abroad.The treatment and improving system of land conditions finally chosen were injectionsat low pressure. This technique allowed :- To inject according to land needs- Can be run from inside the building and the machinery required is small.- At the same time gives some waterproofing to the ground.- Micropiles available where needed.- You can immediately control the movements of the building.- No concrete at low temperatures.- The collection of material is easy : pipes and cement.- The cost is fixed price.INITIAL PHASE CONSTRUCTION PROCESSGiven that the building can not be completely demolished, anything profitable fromthe renovation will be maintained, so it seems appropriate that both the roof andceilings to be demolished given its state of degradation, while at the same time wemaintain the front walls which define the building areas and its historical image. The 11 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 12. Walls and interior walls are demolished to facilitate the functional spaces of SantJosep building. The construction process was as follows :1st Delineation of work area.2nd Fulfill inner and front walls holes and gaps.3rd Assembly of the scaffolding and disconnection of live installations4th Assembly of the temporary work panel and water supply.5th Assembly of debris pipes and location of containers6th Workshop manufacture of interlocked structural profiles7th Roof and mezzanine walls demolition8th Assembly of the interlocked structure of the attic floor and roof9th Demolition of the second floor10th Assembly of the interlocked structure of the second floor11th Demolition of first floor12th Assembly of the interlocked structure of the first floor13th Demolition of the main floor14th Assembly of the interlocked structure of the main floor15th Roof panel with insulating nerves16th Pull out and lower ground level to ground floor17th Drilling and injection18th Deep – rooted ground holes19th Assembly of structural ground floor porch20th Ground floor and basement walls concrete21st Mounting of ceiling plates and concreting of the roof22nd Removal of debris and final dismantling of the scaffolding and cleaning work 12 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 13. ACKNOWLEDGEMENTSGreenbuilding Programme from the European UnionThis project has been submitted to the Greenbuilding Programme. Railways of theGeneralitat of Catalonia has been recognized as a full partner of this prestigiousprogram that since 2005 recognizes the best practices in sustainability and energyefficiency of all buildings in the European Union that at least achieve a 25% energysaving in relation with conventional buildings. The Programme promotes at aEuropean level even the candidate even the project.Promotes best practices throughout themedia machinery of the European Union. Sothen, is a European-level program with agreat reputation in Germany, Sweden,Austria and France. In Spain, energyconsulting firms are in charge of thedissemination of this prestigious sustainablelabel. For this reason the award to a Catalanbuilding takes even more importance, afterhaving competed with over 120 buildings andwon the prize of one of the existing 12categories.Sant Josep building has an area of 3990.45 m2 spread over 5 floors plus basement,where the geothermal facilitie and the picnic area are located. The ground floor isdedicated to restoration, the main one is versatile and has the hotel lobby located in.The remaining floors belong to the hotel. 13 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18
  • 14. With the implementation of a mixture of passive and active solutions we have reacha 55.8% saving (GreenBuilding requires a minimum of 25%). This project hasobtained a grade A calification according to energetic standards.Energy excellences of the building.Geothermal energy : Heat harnessing from the subsoil. 36 wells of 100 feet deepused for heating and hot water. Underfloor distribution system at low temperatureand support fan-coils throughout the building.The management and control system is fully computerized. Among other things, itallows turn the heating off automatically if detects that a room window is opened.Light control of rooms through radio frequency. Computer scan of the entireinstallation, which improves maintenance tasks.Efficient lighting with motion detectors and energy saving lamps (LED).Improving of the thermal coating of the building, with stronger insulation of roofs,facades and walls and soil of the basement. Installation of high density woodenframes protected with aluminum and glass with air chamber to secure a very low lossfactor. 14 Estrucad Metàl·lics SA c/ Alemanya 37 - 43 Pol. Ind. Pla de Llerona 08520 Les Franqueses del Vallès, Barcelona, Spain www.estrucad.com + 34 93840 48 18