As barrio abound anytime taller, bridges anytime bigger and designs anytime added complex, these absorbing projects await aloft added adult falsework and formwork solutions.
One notable archetype is the V&A Museum in Dundee, UK, the architectonics of which was aggressive by cliffs of sedimentary bedrock continuing appreciative adjoin the sea. It stands at the centre of the city’s £1 billion (€1.13 billion) beach about-face scheme.
The £80.11 actor (€90.8 million) architectonics combines circuitous authentic architectonics with bottle facades and beeline authentic cladding. Peri was appointed by Carey’s Civil Engineering to accommodate engineering casework and bespoke formwork solutions.
Before the capital architecture began, a full-size sample console with about-face curvature and abruptness was complete on site. This was done to authenticate buildability, bank geometry, apparent accomplishment and colour analogous with the specialist lining actual actuality used.
Peri formed to a 3D architectonics archetypal developed by structural architect specialist Arup. By alive with 3D drawings, Peri said it was easier to barometer the bulk of structural abutment appropriate to facilitate the build. In fact, it was appropriate that it would accept been absurd to accomplish the architect’s architectonics after 3D structural modelling.
Peri’s Vario panels and Variokit rafters provided a accepted 2,500mm-wide assemblage with capricious abyss and height, tailormade to cede the structure’s busy twists and turns. In this way, 1,277 bespoke panels could be created.
Meanwhile, Peri’s Trio band-aid was acclimated to anatomy beeline walls, minimising costs and acclimation time breadth possible.
Since the alien walls were not self-supporting, shoring backdrop had to be acclimated to authority them up until the roof was installed. Peri Up shoring was acclimated as the arch abutment for the bank formwork.
At the busiest point during this ample and circuitous project, Peri had added than 40 designers from assorted subsidiaries beyond the apple bartering CNC (computer after control) files and artifact assets already the 3D architectonics had been finalised.
With added than 1,500 tonnes of equipment, 1,100 assets and 1,200 bespoke panels on site, Peri said able centralized advice was of the absolute importance.
Similarly, in the architecture of Turkey’s accomplished viaduct, the Eyiste Viaduct, 3D planning has been essential.
At 1,372m in length, the arch will amount the Göksu River to articulation Axial Anatolia with Turkey’s Mediterranean region. In its construction, a absolute of 130,000m³ of authentic and added than 25,000 tonnes of animate will be used.
CSiBridge software was acclimated to archetypal the arch in 3D so that the bridge’s adeptness to handle vertical and crabbed armament could be adjourned and the after-effects congenital into its planning.
The simulations adumbrated that the beeline pier, at 31m, would be best afflicted by seismic forces, while the continued arch accouter and the tallest pier, at 155m, would be added affected to creep, abbreviating and temperature effects, as able-bodied as wind loads.
Based on these results, alone the four tallest piers are actuality casting monolithically with the accouter sections.
The counterbalanced cantilevering architecture sections are actuality complete by Doka appear anniversary added from berth arch to berth head. The four axle basic travellers (CFTs) assignment in pairs, to accumulate the accumbent armament acting on the arch piers in equilibrium. The travellers can handle capricious breadth lengths from 3 to 5m and authentic weights of up to 227 tonnes.
The arch piers are actuality formed by six commutual sets of Doka’s automated aggressive formwork Xclimb 60. The arrangement climbs hydraulically, anchored to the anatomy at all times by allegorical shoes, acceptance it to abide aggressive in airy conditions.
Work on the Eyiste Arch started in March 2017 and is appointed for achievement in mid-2020.
A arch activity in the UK demonstrates how the accretion acceptance of off-site architecture techniques, far from marginalising falsework and formwork companies, is accouterment affluence of assignment for them – if not more. According to US-based EFCO, this is because methods for the acclimation and abutment of pre-cast units on armpit generally crave at atomic as abundant acting assignment as an agnate cast-in-place solution.
One archetype is the 750m-long arch actuality congenital over the River Great Ouse and the East Coast abuse band as allotment of the A14 Cambridge-to-Huntington advance activity in the UK.
It appearance a blended accouter consisting of abundant animate associates with pre-cast slabs and work beams. The pre-cast elements are again affiliated to complete the accouter with an in-situ stitch pour.
The claiming for EFCO was to architectonics and accumulation a arrangement of beams that could abutment the 6.5 tonne pre-cast units as they able on the bend of the animate afore the final stitch cascade was executed.
Adding to the complication of the job, the arch had a bound altruism and circuitous geometry. So, EFCO’s band-aid appropriate acceptable acclimation in all three axes at the key ambience out locations, and the beams had to be pre-set to acquiesce for a affected bend beneath amount already the crane was released.
Working in aing accord with the project’s architect and sub-contractor during planning, EFCO developed a two-stage approach.
First, adjustable axle associates were provided and absorbed to the pre-cast units afore they were transported to the activity site. The beams had fine-adjustment threaded units that accustomed for anniversary affiliate to be set to the actual bend afore actuality aerial into position on the bridge. At the aforementioned time, accompanying abutment axle associates were absorbed to the pre-cast slab on the arch accouter and adapted to accommodate authentic address locations for the landed units.
Once anniversary assemblage was placed, the crane was appear and checks were fabricated on the authentic final position of the pre-cast concrete. The abutment associates again remained in abode until the accretion for the stitch cascade had been placed, the authentic pumped and able backbone accomplished for the anatomy to be absolutely self-supporting.
In total, 252 pre-cast units belief a absolute of 1,638 tonnes were placed on the arch application 40 sets of abutment axle assemblies that were re-used and adapted for geometry as they cycled bottomward the structure.
A able authentic footbridge was afresh complete at the Haguenau railway base in France application formwork from Paschal.
The 98m-long arch has four piers and two abutments. To abutment the authentic piers and blot endless cautiously and steadily, French architect Eiffage acclimated 18m² of Paschal’s Modular accepted formwork to anatomy the foundations for the piers.
The berth foundations had a array of amid 0.6 and 1m, and they were complete on apathetic bags that went to a abyss of amid 10 and 15m.
The accepted formwork is based on a modular architectonics abstraction by Paschal and it was said to minimise the charge for on-site adaptations.
Paschal’s ample LOGO.3 formwork arrangement was acclimated not alone for the piers but additionally for the architecture of the two abutments with chip engineering rooms, in affiliation with Modular accepted formwork, demonstrating the versatility of the two systems.
A contempo activity to restore the Ágora architectonics of the Palace of Sciences and Arts in Valencia, Spain, demonstrates how agenda technology can advice with the process. Ulma acclimated architectonics advice modelling (BIM) to accouterment the structure’s abnormal egg-shaped geometry.
The absolute architectonics was covered with multidirectional Brio axle to refurbish added than 4,247m2 of space, both evidently and internally.
BIM technology was acclimated to advice the assorted collaborators collaborate effectively. It accustomed Ulma to plan anniversary breadth and annals them all in a distinct abode that was attainable to all parties.
For the arctic and south ends of the building, Brio Perimeter axle with one-metre cantilevered extensions was acclimated to ability a best acme of 33m and awning a absolute apparent breadth of 1,000m2.
For the four axial phases of the building, which amplitude to a acme of 48m and accept a apparent breadth of 2,600m2, the aforementioned Brio Perimeter axle was acclimated but with cantilevers that continued up to 3m and push-pull backdrop that were adapted to acclimate the axle absolutely to the building’s assorted curvature.
Digital planning was additionally acclimated by Layher in a Swedish amoroso agency activity recently. A authentic silo with a acme of 69m and a accommodation of up to 80,000 tonnes of amoroso was congenital by German architect Heitkamp Bauservice application the slip-form method.
The silo bank grew at a amount of 2.5m per day, but a decidedly arduous allotment was the roof structure, which consisted of roof rafters and a animate compression arena as the top cease aspect at a acme of 63m. When the alone apparatus were not basic a bankrupt structure, the 45-tonne accumulation appropriate high-strength support.
Applications engineers from Layher helped to plan a band-aid application the company’s software LayPLAN, which includes a CAD module. This constituent for Autodesk AutoCAD can be acclimated to actualize 3D designs of all types of axle structures.
The band-aid acclimated in this book included three of Layher’s systems – Allround Axle Lightweight, Allround Shoring Frames TG 60 and pre-assembled Allround Shoring Towers TG 50.
It is important to accumulate on-site account to a minimum for affidavit of ability and safety. This was absolutely the case on a contempo activity to assemble a bartering architectonics for retail, warehousing and offices in Austria, on account of the aggregation Spiral Reihs & Co.
Meva’s MevaDec band-aid was acclimated for the conception of the four-storey architectonics with slab areas of 2,000m² on anniversary akin and abundant columns, as able-bodied as the accession of aggregate safeguards.
The collapsed slabs for the new appointment architectonics were accurate by columns with bead panels. The columns themselves were aboriginal casting application Meva‘s Mammut 350 bank formwork.
While the 3.5m console heights alone the charge for any vertical extension, the 100kN/m²
fresh authentic amount accommodation accustomed absolute cascade speeds for casting up to this height, which was said to advance progress.
The MevaDec slab formwork was again accumulated about the columns. Its grid-free accumulation accustomed it to be adapted to the appropriate geometries, minimising accompaniment areas. Continuous adjustment to altered layouts could be accomplished by artlessly alteration the accumulation administration of the primary beams.
A key affection of the arrangement was said to be its pre-defined prop grid, which minimises the cardinal of backdrop appropriate and thereby helps to abate the abundance of actual bare on site.
Safety is of advance an important affair too, and beneath the Austrian Regulation on the Protection of Architecture Workers, acceptable bouncer railings were appropriate for animated assignment locations at heights of added than 2m.
However, at the aforementioned time, it was important that these aggregate safeguards did not arrest the works. This is where Meva’s able stop-end brackets, stop-end balustrade and shoes came in advantageous because they could be anchored in a array of means to anticipate the assurance cobweb from assuming a hindrance.
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