Thyssenkrupp test tower

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Thyssenkrupp test tower
Thyssenkrupp test tower
Data
place Rottweil
architect Helmut Jahn , Werner Sobek
Client Krupp Hoesch Stahl GmbH on behalf of ThyssenKrupp Elevator AG
Architectural style Modern
Construction year 2014-2017
height 246 m
Floor space 2830 m²
Coordinates 48 ° 10 '45 .2 "  N , 8 ° 37' 30.2"  E Coordinates: 48 ° 10 '45  .2 " N , 8 ° 37' 30.2"  E
particularities
• The tallest structure with a textile
facade • The first structure that can be actively vibrated

The Thyssenkrupp test tower ( spelling : thyssenkrupp test tower ) in Rottweil is a 246 meter high elevator test tower for express and high-speed elevators . The tower, which was built by Thyssenkrupp Elevator between 2014 and 2017 , offers the highest visitor platform in Germany at 232 meters and is the world's second highest test tower for elevator systems. With the underground floors, which are also used as a test environment for the elevator shafts, the shaft has a total length of 275.5 meters.

The tower has won numerous architecture, engineering and design awards and offers some unique selling points. It is the first building in the world that can be made to vibrate by a vibration pendulum inside the tower shaft. Real wind loads are simulated in this way. The shaft is covered with a special fiberglass textile along a helical tube, which defines the actual external shape of the tower. This makes the tower the tallest textile-clad building in the world.

history

Location search

The original plan was to build the tower in the Neckartal industrial area. But it turned out to be unsuitable based on the results of geological surveys and test drilling on July 17, 2013. Instead, on September 11, 2013, Thyssenkrupp suggested the Berner Feld industrial area above the valley as an alternative location, around one and a half kilometers north of Rottweil city center.

The Neuhausen production site was not possible due to its proximity to Stuttgart Airport . In addition to the not too great distance of around 100 kilometers from the production site, the large number of students and specialists in the region and, last but not least, the encouragement of the city of Rottweil spoke in favor of the chosen location.

Planning process

After a non-public information from the municipal council on April 24, 2013, the public was informed about the construction project one day later. A citizens' meeting was held on May 6, 2013, attended by around 420 interested parties.

In the run-up to the meeting, there were discussions among the population about whether the striking tower would impair the historic townscape of Rottweil, one of the oldest cities in Germany , or the landscape between the Black Forest and the Swabian Alb . Ultimately, the city ​​council voted in favor of the construction project in the hope of attracting tourists who will revive the local retail , catering and hotel industries.

On September 25, 2013, the municipal council requested that the planning process be prepared. On the last weekend in September, a so-called balloon test was carried out on the Bern field. A balloon was allowed to rise to exactly the height of the planned building height in order to clearly illustrate the effect of the building project. After another citizens' meeting, the local council decided on October 23rd to start the planning process and on December 11th of the same year gave the go-ahead for the sale of the property to Thyssenkrupp.

The competition also began in the second half of 2013. After a multi-stage bidding process, the decision on the companies and architects involved was made in March. The building is a design by the architects Helmut Jahn and Werner Sobek , who presented their design to the public in Rottweil on April 11, 2014. The Stuttgart construction company Züblin was chosen as the general contractor .

Naming

Company sign at the foot of the tower

After the first announcement of the construction project in April 2013, the Rottweiler Lord Mayor Ralf Broß brought up the name Powertower . The architect Helmut Jahn called the tower the Tower of Light .

In October 2014, a local newspaper started a campaign in which readers could submit name suggestions. At the same time, a private Facebook page collected suggestions for the name of the tower. Both actions were irrelevant for the actual naming, as they had not been discussed with either the client or the city administration.

Thyssenkrupp and the city of Rottweil simply referred to the structure as the test tower or test tower Rottweil, in English Rottweil Test Tower . Thyssenkrupp has been calling the tower thyssenkrupp test tower since 2017 .

construction

Foundation work and shaft construction

Construction progress in May 2015 with climbing crane

The groundbreaking ceremony for the foundation of the tower took place on October 2nd, 2014. An excavator with a shovel and a hammer dug the 30 meter deep shaft ever deeper. The subsoil consists of Lettenkeuper and an underlying layer of shell limestone . Due to the good load-bearing capacity of the shell limestone, a pile foundation could be dispensed with. After the excavation of the construction pit, the foundation stone was laid on December 16, 2014 .

The shaft walls were continuously secured with reinforcement nets and shotcrete. Due to the given situation, it was not possible to build a ramp for the construction pit, so that at the end of the work, the excavator was lifted out of the pit with a mobile crane. In February 2015, the foundation and the part of the concrete pipe that protruded 30 meters into the ground were completed.

The tower was built using the so-called sliding formwork method. In this case, the formwork and work platform are slowly pulled up and the vertical structure is continuously concreted. In this way, the tower has grown daily by up to 5.6 meters in three-shift operation. The first section of sliding began on March 10, 2015 and reached the surface after nine days. From then on, all formwork had to be removed and reassembled for the second section.

Due to a very hot summer in 2015 with temperatures of consistently over 30 degrees Celsius, a sprinkler system had to be set up to cool the rebars on the work platform. With the help of a separate silo in the Dotternhausen cement works, which was reserved for the construction project , enough concrete was kept in stock to allow enough time to cool down. With this measure, the work could continue and the building material could be kept between 21 and 24 degrees Celsius. The topping-out ceremony took place on July 29, 2015.

Interior finishing and base

Construction progress in May 2016 with full height of the tower shaft and base construction

The interior of the tower, which also includes the mezzanine floors, had to be completed in a second separate construction phase, as horizontal parts cannot be implemented using the slip-form construction. Therefore, the floor slabs were installed later; the required concrete was pumped up from below. Bringing in the concrete for the false ceilings from the outside using a crane would have been significantly more inefficient due to the long lifting distances and the tight space available. As a side effect, due to the necessary structural recesses on the shaft, light penetrates the corridors created in this way . After all the inner and outer walls had been completed, the pendulum could be installed and finally the base structure followed .

This special construction process required additional evidence. The critical phase was after the completion of the shell including the ceilings, but before the base construction was connected and before the pendulum was put into operation. This was because the tower was only clamped in the subsoil and the wind loads acting on the structure had to be passed on without the lever arm of the base construction. During this phase, it had to be ensured that the subsoil does not experience permanent plastic deformation. It could be proven mathematically that the subsoil was elastic enough to meet the safety requirements.

Installation of the membrane

Construction progress April 2017: the assembly ferry for attaching the membrane can be seen in the lower part of the shaft

The tower was officially put into operation in December 2016, the cladding was still missing, but both office and test operations could begin from there. Due to technical problems with the cladding, the viewing platform was not officially opened until October 7, 2017. To assemble the steel and membrane construction, a two-story, 50-ton assembly ferry was attached, which ran up on three rack rails. The amount of steel used for the facade construction was 300 tons. The construction, as well as the plastic membrane, was installed segment by segment in two shifts with the help of around 30 industrial climbers . For this purpose, a sled construction like a ruff was mounted on the tower shaft in sections, from which the climbers could work from top to bottom. On November 24, 2017, the last piece of membrane measuring 22 × 12 meters was attached to the base of the tower.

The total investment was 40 million euros. Around 150 engineers and 160 workers on the construction site were involved in the construction over the entire period.

Since opening

Since October 13, 2017, the platform has been generally accessible from Friday to Sunday and on public holidays. The following weekend the tower was officially opened with a city festival. Minister-President Winfried Kretschmann was among the guests . With a cultural and social supporting program under the name “Year of Towers - Good Prospects”, the city referred to various other, partly also historical, tower structures in 2017 and with this program drew prominent attention to the opening.

In mid-December 2017, the last construction site scaffolding was dismantled, the construction was officially completed. Since its opening, the tower has had the highest publicly accessible viewing platform in Germany, relegating the previous record holder, the visitor platform of the 368 meter high Berlin television tower , to second place. The platform is also one of the highest of its kind in Europe . Until the opening of the two-meter-higher tower, also built by Thyssenkrupp, in March 2018 in Zhongshan , China , the Rottweiler tower was also the tallest elevator test tower in the world . The tower in Rottweil thus trumped the previous record holder, the Hitachi G1 Tower , which was completed in April 2010 and is used by Hitachi as an elevator test tower.

On October 31, 2018, the crane at the top was removed by helicopter.

description

Location and surroundings

The tower is located 1.5 kilometers north of the historic city center of Rottweil in the Berner Feld industrial area, which is bordered by a loop of the Neckar, on a small hill at around 595  m above sea level. NN height. Only a few hundred meters north of its location is the Rottweil viaduct for the north bypass of Bundesstraße 27 , from which a junction leads to the industrial area.

The tower is visible from afar as a striking landmark from the north , for example from Hohenzollern Castle to the northeast, around 30 kilometers away as the crow flies . Seen from the other three cardinal points, the tower stands in a depression that is bordered by the Black Forest in the west, the Baar in the south and the part of the Swabian Alb in the east called Großer Heuberg . The center of Gosheim, eleven kilometers away as the crow flies, is 850 meters, i.e. nine meters higher than the top of the tower (841 meters).

There are public parking spaces for visitors to the viewing platform to the north of the test tower . The tower is located on the western edge of the commercial area and is accessed by a spur road that ends in a turning circle . A paved path branches off from this and leads around the tower. However, this is only separated from the public road for employees and with a barrier system. The entrance area for the public is located on the northeast part of the shaft at the entrance area of ​​the private property. There is a delivery ramp for goods traffic to the west. Additional parking spaces are grouped around the tower and are reserved for employees and customers. The entire area of ​​the tower covers an area of ​​10,000 square meters.

Architecture and construction technology of the tower

Sectional drawing of the Thyssenkrupp test tower with the shaft diagram (view from the east), its components and the different concrete classes

General structure and technical data

The 246 meter high structure protrudes 29.5 meters underground, so that the concrete shaft is up to 275.5 meters. The elevator shafts protrude up to 14 meters underground into the foundation shaft. As twelve shafts are built in at the core, a total of 2.1 kilometers of test route runs in the tower. In total, test shafts are available in the tower structure at an altitude of 260 meters. Since some of the elevators cover a shorter distance, the corresponding shafts end after a height of 115 meters. One of these is designed as a fire brigade elevator and one serves as a glazed panoramic elevator for the visitors to the viewing platform. In addition, all stairwells in the building have a total of 1617 steps. Apart from the shafts, ceilings with in-situ concrete have been put in at a distance of about 10 meters , which allow access to the individual shafts. The wide-span semicircular ceilings are up to 40 centimeters thick.

A total of 15,300 cubic meters of concrete, 200 rock nails and 2,640 tons of steel were used to build the tower. The mass of the structure is 40,000 tons, which is around 30% more than the Berlin television tower.

Werner Sobek was involved in this building not only as an architect but also as a structural and facade planner.

Foundation plate and concrete strength

The two meter thick foundation slab consists of 700 cubic meters of concrete. It was introduced and compacted in one operation. In addition to a high degree of reinforcement , the floor slab has sensors for temperature measurement.

The concrete quality is graded differently depending on the height. Since the property of the concrete should guarantee a moderate heat development, the maximum strength class for the building material was chosen to be C50 / 60. The lower 80 meters of the tower shaft , like the foundation slab, are made of class C50 / 60 concrete, the other 50 meters of C40 / 50, up to the top the strength grade C30 / 37 was used. Concrete of type C50 / 60 was only used at a height of 190 meters (29th floor) because a pendulum mass was installed at this point .

Vibration absorber

The vibration absorbers should at deflections dampen according to the tower. For this purpose, a 240-ton concrete slab was suspended from a roughly nine-meter-long rope in the cavity of the heat storage tank, which is both passive and can be actively operated via two actuators ( linear motors ). In addition, the system contains viscous damping elements for energy dissipation . The vibration mass had become necessary because tests in the wind tunnel had already shown in the early planning phase that the tendency of the cylindrical tower shaft to transverse vibrations could not be completely eliminated by the facade membrane.

With the passive use of the absorber, wind-related tower movements can be reduced from 76 centimeters to less than 15 centimeters; the natural frequency of the structure is 0.2 Hz. Active use simulates real wind loads during the elevator test runs. With a relatively small effort of 35 kilonewtons , artificially caused deflections of up to 20 centimeters are possible at the tower head . The Thyssenkrupp test tower was the first structure in the world that can be actively vibrated in order to simulate real wind loads.

Since the active use of the pendulum could theoretically lead to the self-destruction of the structure, strict limit values ​​were calculated that limit the period and the maximum horizontal deflection. The calculated stress ranges and vibration cycles form the necessary proof of fatigue . This means that 20 centimeters in the head deflection of the test tower do not represent any restrictions in terms of fatigue strength for the reinforcement and the concrete and are therefore considered to be harmless.

Perimeter structure

Perimeter structure

At the base of the tower there is a foyer area, which is enclosed by a frustoconical edge structure. Its diameter is 48 meters and part of this structure was realized as a glass roof, the other part with a green roof . The edge structure, which acts as a base, extends up to 4.5 meters below the ground. The edge structure fulfills the static function of horizontal bracing. Ten radially attached bulkheads increase the lever arm of the tower and convert part of the horizontal forces into vertical forces, which in turn are diverted to the ground via the foundation. In addition to the static utility value, the peripheral structure increases the spatial utilization possibilities. In addition to the reception hall for the visitor audience, there is also a media room for presentations.

Tower shaft and head

Furthermore, further office and conference rooms are distributed at a height of 120 to 220 meters. The wall thickness of the tower shaft decreases from a height of 110 meters from 40 to 25 centimeters.

At the top is a conference room, above it a covered viewing platform at 232 meters. The architect Werner Sobek calls this area a penthouse . It is a light steel construction with trapezoidal sheet metal roofing. An uncovered terrace area runs around the penthouse up to the outer edge of the tower. This open-air area is enclosed by panes of glass that are attached to haunched steel profiles and are each 1.5 meters apart.

An insulated flat roof with a slight slope closes the tower structure four meters above the viewing platform . The approx. 2 percent inclination, together with point drainage in two drains, ensures that the rainwater is drained away.

Facade membrane

Tower in the soffit: the membrane structure is easy to see
The edge of the facade membrane on the viewing platform

The Thyssenkrupp test tower has a round base area with a diameter of 21 meters, which continues upwards without tapering . The concrete facade is clad by a close-meshed, semi-transparent, spiral-shaped upwardly striving glass fiber fabric with a coating of polytetrafluoroethylene (PTFE), which increases the diameter of the structure to 24.8 meters. In addition to the aesthetic aspect, the PTFE membrane has an insulating function that is supposed to protect the interior of the tower from excessive overheating and cooling. At the same time, the so-called Scruton helix is created with the plastic membrane , which has a positive effect on vortex shedding on the tower shaft and thus reduces the transverse vibration loads typical for these structures by around 40 percent.

The total of more than 16,000 square meters of PTFE glass mesh is attached to a steel substructure. This consists of six tubular steel coils, which are mounted on A- frames and are guided around the tower from the bottom upwards at a distance of 1.8 to 2.7 meters from the concrete surface. The roughly 800 anchor plates were installed around the tower using dowels or welded joints. The helical tubes have an end tube at the top. This is sloping in elevation from south to north and is concave over 40 meters . The membranes are stretched from one helical tube to the next, and their center lines are additionally supported against wind influences. The four different materials gradually run from bottom to top, becoming more transparent. At the top, the membrane tapers off at an angle and optically reveals the end of the tower shaft with the rows of windows facing south.

Industrial engineering

The elevators built into the tower are linked to a power recovery system, which is more efficient the more the cabins are loaded. In this way, up to 30% of the energy can be reused. In addition, the heat that all components and equipment in the tower produce is returned to the heated rooms via a heat exchanger with the help of electronic measurement, control and regulation technology and two heat pumps . For this, the shaft area above the 120 meter mark serves as an air heat energy store. The electrical supply of the six main information points distributed in the tower - the deepest is at -4 meters in the basement area, the highest at 206 meters - was realized with aluminum cables. The degree of self-sufficiency in heat is therefore high.

Fire protection

The tower has multiple point sensors for each floor; a total of 421 of these alarm systems are installed in the structure. There are also around 40 manual call points. In the event of a fire, the reporting system enables the fire brigade to be informed of the floor on which the fire broke out and, in an emergency, only moves the fire brigade elevator to the level below the level where the alarm was triggered. In addition to these passive measures, ventilation and smoke extraction dampers are controlled as required. There is also a sprinkler system .

Another fire protection measure is the installation of a 36 centimeter thick rock wool insulation on the roof of the test tower. The insulation also ensures that the heat collected in the air reservoir is returned to the rooms via a heat exchanger . However, the material was mainly used because of its high temperature resistance up to 1000 ° C, because extinguishing at such altitudes is difficult for the fire department.

lighting

The 44 spotlights that illuminate the membrane went into operation for the first time on February 14, 2019. A certain lighting scheme was agreed with the city. From February 15 to May 15, the tower is only illuminated at dusk so as not to irritate flocks of birds. The tower also has a fog sensor that switches off the lighting in fog.

Due to its height, the tower is considered an aviation obstacle and therefore has red flight lights every 50 meters , which are visible from all sides. If the weather permits, a flashing white fire ( Medium Intensity Obstacle Light, Type A ) is used at the top of the tower during the day. This is e.g. B. in fog or high fog , when the contrast of the building to the sky is low even from close up, switched.

use

Test facility

The test tower in Rottweil plays a key role for Thyssenkrupp Elevator in implementing the global innovation strategy . Together with the elevator plant in Neuhausen auf den Fildern and as part of the research and development site in Pliezhausen , the test tower forms the innovation center for elevator technologies in Germany.

On the one hand, high-speed elevators with speeds of up to 18 m / s are tested, developed and approved in the tower. The test of the high-speed elevators is also one reason for the enormous height of this test facility. To get to the appropriate speed, you need an acceleration distance of 90 meters. The elevator can travel between 10 and 20 meters at full speed. On the other hand, the TWIN systems with two cars in the same shaft and MULTI are used, in which several elevator cars can move independently of one another without ropes. The same technology is used here as with magnetic levitation trains . The use of magnetic fields enables not only a purely vertical movement of the elevator car , as is only possible with conventional systems, but also a horizontal movement. In addition, drop and braking tests are carried out on conventional elevators in the facility in Rottweil.

The Rottweiler test tower has a total of twelve elevator shafts, nine of which are intended for conventional test operations. Three shafts are used to test the new MULTI system, in which the cabins move upwards on two connected vertical rails. For safety reasons, no people may initially be transported with the MULTI system in the test tower until TÜV approval.

Tourism and event location

View of the old town of Rottweiler

In order to anchor the acceptance of the eye-catching and high test structure in the population, the company decided to make the test tower accessible to the public and to create a corresponding visitor magnet for the region with the construction of the highest viewing platform in Germany. In order to efficiently meet the expected influx of visitors, a corresponding infrastructure with parking spaces was created on the tower area. In addition, a connection between the tower area and Rottweiler's old town via a pedestrian suspension bridge is planned.

The publicly accessible, floor-to-ceiling glazed 125 square meter visitor platform offers space for up to 199 guests and enables a 360-degree panoramic view of the Swabian Alb and, in ideal weather conditions, of the Swiss Alps . With binoculars that magnify ten times, the height of the tower and its location allow for a distance of up to 210 kilometers with optimal visibility. In the covered visitor platform, digital information steles in binocular optics are installed at the corresponding points of the sky, giving data and facts on various cities with large collections of high-rise buildings.

Tower head with the viewing platform

In the first year of its opening in 2018, the tower recorded almost 210,000 visitors.

The city of Rottweil also offers two guided tours to the tower.

The operator offers various rooms for events for rent. In addition to a large conference room measuring 157 square meters by 220 meters and a small one measuring 65 square meters by 216 meters, there is a 37 square meter lounge on the same floor. A media lobby on the ground floor with 82 square meters offers an extra-wide presentation screen. The visitor lobby (146 square meters) and the customer lobby (160 square meters) can also be rented.

Flight of stairs

On September 16, 2018, a run called the thyssenkrupp Towerrun took place for the first time through the staircase from the ground floor up to the visitor platform: around 700 runners climbed 1,390 steps. The fastest runner was Christian Riedl, who mastered the 232 meters in altitude in 6:56 minutes, the fastest woman Martina Nagel, she managed the staircase run in 9:53 minutes. The flight of stairs has been carried out annually since then. The flight of stairs at the test tower in Rottweil, in which you can participate individually, in a team of two or in a two-man relay, is the highest in Western Europe to date. There are also special ratings for firefighters and police officers.

On September 15, 2019, the 2nd flight of stairs with around 1000 participants took place at the Rottweiler test tower, which was also the venue for the German Stairway Championships.

reception

On May 17, 2018, the Thyssenkrupp test tower received the Balthasar Neumann Prize from the Deutsche Bauzeitschrift (DBZ) and the Association of German Builders, Architects and Engineers , which is awarded for structures that are characterized by sustainable construction. The prize, which is awarded every two years and is endowed with 10,000 euros, was awarded for the successful collaboration in the field of architecture, supporting structure and energy / sustainability concept. The jury recognized that the structure and construction had to meet very high technically complex requirements and that both the form and the construction were intertwined in a remarkable way.

The unusual facade design of the tower with the PTFE membrane received recognition in 2018 from the company that distributes the German facade award for ventilated curtain walls .

On June 13, 2018, the test tower received the German Civil Engineering Award 2018, which is considered the state award as the most important award for civil engineers in Germany. The structure prevailed among the jury from a total of 20 submissions. Its innovative facade and construction were recognized. The President of the Federal Chamber of Engineers , Hans-Ulrich Kammeyer, stated another reason:

“The winning project is characterized by the fact that it also makes innovative engineering accessible to the public. And that is exactly what we want with the award: making impressive engineering achievements tangible. "

The winning design was endowed with prize money of 30,000 euros.

The building received three design awards for the special design of the visitor area. On April 24, 2018, the test tower's visitor center received an award from the Art Directors Club as part of the German Creative Festival. On August 16, 2018, a jury team of 24 members also presented the visitor center with the Red Dot Design Award . The project, which was convincing in the Communication Design discipline, prevailed from a selection of 8610 submissions from 45 countries. On January 30, 2019, the iF Award for the exhibitions in the foyer of the test tower was presented. The interior architecture discipline was honored.

On February 9, 2018, the cabin of the MULTI ropeless elevator system tested in the test tower was awarded the German Design Award .

literature

  • Christian Meinhardt: Application of a hybrid damper system for a 246 m high building. in: 6th VDI symposium. Baudynamik 2018 , VDI reports 2321, VDI Verlag GmbH, Düsseldorf 2018, ISBN 978-3-18-092321-5 , pp. 83-92. ( Table of contents )
  • Rainer Büchel, Thomas Kaczmarek: The concrete for the test tower in Rottweil. In sliding construction up to 246 m. in: Beton , 2018, ISSN  0005-9846 , pp. 374–377.
  • Andreas Gabriel, Markus Jetter: A revolutionary elevator system in the test tower in Rottweil. in: Structure , 2018, ISSN  2568-2253 , pp. 54–58.
  • Award winners. thyssenkrupp test tower, Rottweil . in: DBZ - Deutsche Bauzeitschrift , 2018, ISSN  0011-4782 , pp. 6–9. ( here online )
  • Christian Petersen, Horst Werkle: Dynamics of building structures . Springer Vieweg, Wiesbaden 2017, ISBN 978-3-8348-1459-3 , p. 1113.
  • Federal Chamber of Engineers (Ed.): Ingenieurbaukunst 2017 . Ernst & Sohn, Berlin 2016, ISBN 978-3-433-03167-4 , pp. 104-109.
  • Thomas Glunk: Klaus Strohmeier: Construction of the elevator test tower for thyssenkrupp AG in Rottweil . in: Bauingenieur , 2017, ISSN  0005-6650 , pp. 81–83.
  • Holger Hinz, Wener Sobek: The test tower in Rottweil - Germany's highest viewing platform. Reinforced concrete tube with textile facade. in: Beratende Ingenieure , 2017, ISSN  0005-8866 , pp. 18–22. ( here online )
  • Karin Kronthaler: Test tower with fire-proof insulation. Flat roof insulation and drainage at great heights . in: Industriebau , 2017, ISSN  0935-2023 , pp. 48–49.
  • Birgit Kümmel: Test tower made of reinforced concrete. in: Baukultur , magazine of the German Architects and Engineers' Associations (DAI), ISSN  1862-9571 , issue 1/2016, pp. 20–21. ( here online )
  • Let's go up. High test tower for elevators in Rottweil . in: Opus C , 2016, ISSN  1860-0298 , pp. 82–87.
  • Horst Erler, Werner Remarque: Building of Records - The Test Tower in Rottweil . in: Beton-Informations , 2016, ISSN  0170-9283 , pp. 3–15. ( here online )

Web links

Online representations

Commons : Thyssenkrupp test tower  - collection of images, videos and audio files

Video and film contributions

Individual evidence

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  38. ↑ Good vibrations: The test tower in Rottweil swings to the rhythm of the city , last accessed on February 22, 2019
  39. ↑ a b Petersen, Werkle: Dynamics of Building Constructions. P. 1113.
  40. ↑ Civil Engineering 2017 , pp. 107/108.
  41. ↑ a b Schwarzwälder Bote: Tower swings in rhythm , article from February 18, 2016, last accessed on April 3, 2019
  42. ↑ ING BW aktuell: High performance at the edge of Rottweil (PDF, p. 5), 07–08 / 2016, last accessed on March 29, 2019
  43. ↑ B_I Medien: Tower of Rottweil: With sliding formwork 246 meters in height. , Article from June 26, 2015, last accessed on February 25, 2019
  44. ↑ B_I Media: Rottweil test tower: Flat roof insulation at a height of 237 meters , article from April 28, 2017, last accessed on February 23, 2019
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  46. ↑ schwarzwaelder-bote.de: Test Tower: A visit to the membrane builders , article from September 1, 2017, last accessed on February 20, 2019
  47. ^ Society for control engineering and energy saving mbH: GFR delivers the extraordinary building automation for the "Thyssenkrupp elevator test tower" in Rottweil , press release of October 6, 2017, last accessed on February 26, 2019
  48. ↑ baunetzwissen.de: Well insulated at a height of 237 meters. Flat roof insulation on a test tower for elevators in Rottweil , last accessed on April 1, 2019
  49. ↑ Südkurier: The Rottweiler test tower lights up at night
  50. ↑ Black Forest Messenger: Test tower shines on Valentine's Day
  51. ↑ Birgit Kümmel: Test tower made of reinforced concrete. in: Baukultur , magazine of the German Architects and Engineers' Associations (DAI), ISSN  1862-9571 , issue 1/2016, pp. 20–21.
  52. ↑ Information about the tests on the test tower page
  53. ↑ manager-Magazin.de: Elevators without a rope - this is how Thyssen wants to revolutionize high-rise construction , article from June 22, 2017, last accessed on February 22, 2019
  54. ↑ Schwarzwälder Bote: New project on the Berner Feld , article from February 22, 2019, last accessed on February 25, 2019
  55. ↑ Press release Züblin: Aiming high with the latest technology: Züblin's test tower is right on schedule (PDF, p. 3), last accessed on February 22, 2019
  56. ↑ bba-online.de: Record number of visitors and rain of prizes for the ThyssenKrupp test tower in Rottweil , article from November 27, 2018, last accessed on February 25, 2019
  57. ^ Rottweil.de: Guided tours at the test tower , last accessed on February 26, 2019
  58. ↑ List of rentable rooms in the Thyssenkrupp test tower , last accessed on February 25, 2019
  59. ↑ Sportsmanship . In: Späre Alb - Discover the Swabian Alb habitat. Römerstein , 3/2018. P. 41
  60. ↑ Event website with overviews
  61. ↑ thyssenkrupp-towerrun.de , last accessed on February 19, 2019
  62. ↑ untime.de: 1st DM stair run Rottweil: thyssenkrupp test tower , article from January 29, 2019, last accessed on March 8, 2020
  63. ↑ Information about the Towerrun , last accessed on February 20, 2019
  64. ↑ Neue Rottweiler Zeitung: thyssenkrupp test tower 2019 will be the first venue for the German Stairway Championships , article from January 29, 2019, last accessed on February 25, 2019
  65. ↑ SWR Aktuell : 1,000 runners climb the Rottweiler test tower , article from September 15, 2019, accessed on September 16, 2019
  66. ↑ Balthasar Neumann Prize 2018. The Thyssenkrupp test tower wins the Balthasar Neumann Prize 2018 , last accessed on February 25, 2019
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  68. ↑ fvhf.de: German Facade Prize 2018 for rear-ventilated curtain walls , last accessed on February 25, 2019
  69. ↑ Press release of the Federal Office for Building and Regional Planning : German Civil Engineering Award 2018 goes to test tower for high-speed elevators in Rottweil , last accessed on February 25, 2019
  70. ↑ BauNetz : Werner Sobek's test tower in Rottweil wins , article from June 20, 2018, last accessed on February 25, 2019
  71. ↑ milla.de: Lighthouse of Innovation , last accessed on February 25, 2019
  72. ↑ Thyssenkrupp press release on October 23, 2017: thyssenkrupp Elevator wins the German Design Award , last accessed on February 25, 2019 , with the cabin of the world's first ropeless elevator MULTI
This article was added to the list of excellent articles in this version on April 21, 2019 .