Katja Bärenfänger

M.Eng., B.Arch.

Specialist planner for energy efficiency IngKH, Certified Passive House Designer

Building Physics and Building Performance

kbaerenfaenger@bollinger-grohmann.de

A  Kayley Adams  /   Lars Ahlfeld  /   Leila Akoucham  /   Bezuayehu Alemayehu  /   Holger Alpermann  /   Bettina Amann  /   Barbara Anton  /   Etienne Antuszewicz  /   Diego Apellániz  /   Jürgen Aßmus  /   B  Niccolo Baldassini  /   Matej Banozic  /   Benjamin Barbaros  /   Katja Bärenfänger  /   Simon Baus  /   Hendrik Behrens   /   Fouad Belhad  /   Alexander Berger  /   Louis Bergis  /   Marta Besalú i Canals  /   Elisabetta Bianchi  /   Elisabetta Bigliardi  /   Nikelina Bineri  /   Thomas Boekels  /   Csaba Böhm  /   Sascha Bohnenberger  /   Silvia Bölling-Zündorf  /   Klaus Bollinger  /   Aurélien Bonvalet  /   Pierre Bourdier  /   David Brey  /   Wolfgang Brühl-Gering  /   C  Stefano Cammareri  /   Daniel Capatana  /   Joseph Chappell  /   David Chavez-Monroy  /   Elena Corio  /   Gülüzar Coskun  /   Alessandro Costa  /   Paul Covillault  /   D  Klaas De Rycke  /   Aurélie Dell  /   Daniel Dieren  /   Sebastian Dietrich  /   Christopher Dinges  /   Luis do Vale  /   Corinna Dönges   /   Andreas Dönhoff  /   Jacqueline Dos Santos  /   Jakob Drömmer  /   Martin Dudek  /   Christoph Duppel  /   E  Philipp Eisenbach  /   Leonie Eitzenberger  /   Dajana  Elez   /   Zeineb Ellouze  /   Tim Elser  /   Martin Eppenschwandtner  /   Ümit Esiyok  /   F  Mark Fahlbusch  /   Olesja Fedorov  /   Angela Feldmann  /   Dennis Find  /   Paul-Marc Fleischmann  /   Hannah Franz  /   Alexander Freund  /   Carole Frising  /   G  Pauline Garreau  /   Liliana Gazda  /   Diana Gehrels  /   Christoph Gengnagel  /   Yannik Gies  /   Christian Götz  /   Nelli Gress  /   Manfred Grohmann  /   Claudia Groth  /   Verena Gruber  /   Jörg Grundke  /   H  Fardin Habibzada  /   Simone Hainz-Vrkić  /   Pia Halbich  /   Barbara Hasenmüller  /   Carina Haubfleisch  /   Franziska Häuptle  /   Silke Healy  /   Paul Hechinger  /   Moritz Heimrath  /   Alexander Heise  /   Laura Hinkel  /   Alexander Hofbeck  /   Arne Hofmann  /   Tobias Hövermann  /   Sarah Hübner  /   Florian Hutter  /   J  Wim Jansen  /   Ann-Kathrin Janzen  /   Tobias Jarosch  /   Justin Jégorel  /   K  Walter Karst  /   Werner Kastl  /   Katrin Maria Kaupa  /   Matthias Keil  /   Ali Sarmad Khan  /   Mirko Klein  /   Heike Kling  /   Meike Kraft  /   Simone Kraft  /   Martin Krämer  /   Wolfgang Kraus  /   Robert Krüger  /   Torsten Künzler  /   Mathias Kutterer  /   L  Hendrik Laing  /   Jérôme Lalande  /   Sabrina Langer  /   Narjis Lemrini  /   Marc Leyral  /   Martin Löhr  /   Michael Lommertz  /   M  Lukas Mahlendorf  /   Georgia Margariti  /   Nikola Markunovic  /   Pierre Marquis Lhuillier   /   Clément Martin  /   Thierry Martinez  /   Sandra Marx  /   Elisa Massari  /   Luka Pepe Matthias  /   Emiliano Mattiussi  /   Birgit May  /   Yasmin May   /   Michaela Mayer  /   Alessio Mazzucchi  /   Kinga Anna Michałek  /   Reinhard Mink  /   Niels Moskalenko  /   Farzam Movahedrad  /   Jens Müller  /   Astrid Münzinger  /   Simone Murr  /   N  Tristan Narcy  /   Nicholas Nearchou  /   Stefan Neuhäuser  /   Jean-Rémy Nguyen  /   Pero Novakovic  /   Susanne Nowak  /   O  Martin Opel  /   Adam Orlinski  /   Ilya Osherov  /   P  Tommaso Pagnacco  /   Vanessa Pamler  /   Janin Paninski  /   Franz Paschke  /   Rafael Pastrana  /   Julia Patzak  /   Maximiliam Pertl  /   Horst Peseke  /   Adrian Peter  /   Daniel Pfanner  /   Elisabeth Pichelbauer  /   Emilio Podreka  /   Clemens Preisinger  /   Sabrina Preuß  /   Rainer Pum  /   R  Margherita  Ratti  /   Sarah Reich  /   Christiane Richter  /   Eva Riebel  /   Martin Ripka  /   Roberto Ruggeri  /   Simon Ruppert  /   Julica Rupprath  /   Andreas Rutschmann  /   S  Kay Saßmannshausen  /   Luisa Sauerhammer  /   Natalia  Schäfer  /   Thomas Schaumberger  /   Frauke Schiffner  /   Anna Schmidt  /   Frank Schmidt  /   Jörg Schneider  /   Annette Schulte  /   Andreas Schwarz  /   Judit Schwarz  /   Alba Segura Orenga  /   Uwe Sennewald  /   Sepehr Setoodeh  /   Kathleen Shortle  /   Natalia Shtaveman  /   Daniel Skrzipek  /   Matteo Soru  /   Flemming Højbjerre Sørensen  /   Nadia Sreiss  /   Mikko Stachl  /   Marianne Stålhös  /   Heike Stasiak  /   Birger Steffe  /   Sarah Stipek  /   Ulrich Storck  /   Matthias Stracke  /   Timo Streitenberger  /   Nicole Streuer  /   Kosana Šušak  /   Mathias Süß  /   Mate Szabolcsi  /   T  Matthew Tam  /   Frank Tarazi  /   Ljuba Tascheva  /   Fumihiko Tomita  /   Richard Troelenberg  /   Heiko Trumpf  /   U  Daniela Unglaube  /   V  Brecht Van de Velde  /   Dwayne van Halewijn  /   Laure Vandeputte  /   Nannette Veith  /   Kenny Verbeeck  /   Gonçalo Viana Antunes  /   Robert Vierlinger  /   Paolo Viola  /   Edgar Vogel  /   Achim Vogelsberg  /   Tanja Volkert  /   W  Michael Wagner  /   Agnes Weilandt  /   Ines Weiß  /   Matthias Westermeier  /   Marius Wettlaufer  /   Frauke Wilken  /   Max Wittich  /   Y  Ning Yang  /   Z  Abdul Hanan Zahed

28 June 2018

Competition won: train station Altona

Congratulations to C.F. Möller who won the competition "train station Altona in Hamburg". B+G Oslo supported the architects with regard to the structural engineering, façade design and sustainability.

17 July 2018

Lecture: The ESO Supernova - State-of-the-Art planning and construction

In the course of the information event of the Bavarian Chamber of Civil Engineers, Axel Müller (Bernhardt+Partner) and Alexander Hofbeck (B+G) will talk about the parametric planning and building of the geometrically highly complex solid construction of the ESO Supernova.
In addition to the project presentation, the network "Junge Ingenieure" of the Chamber of Engineers and the relatively new digitalization initiative in the construction industry called "Digital Builders Munich" will be presented.

IASS 2018 Video Contest!: HiLo

This year, the IASS Symposium is hosting a video competition for accepted papers, offering a new way for participants and the public to engage with the work. Videos will be streamed throughout the conference and voted on by participants and public.

4 July 2018

FIABCI World Prix d'Excellence Awards: Silver

After winning Gold at the FIABCI Prix d'Excellence Germany (17.11.2017), the residential building Axis now also won Silver at the FIABCI World Prix d'Excellence Awards.
The well-known FIABCI Awards, according to the Wall Street Journal, the "Oscars of the Global Real Estate Industry", awards prizes in 14 categories each year. Axis, awarded in the category "Residential (High Rise)", is the only German project among the winners.

21 June 2018

Won: competition Castle Clemenswerth and Friedrich-Ludwig-Jahn-Museum

We are pleased to announce that the team of architects STUDIOBORNHEIM won together with hutterreimann Landschaftsarchitekten from Berlin in collaboration with Bollinger + Grohmann the 1st prize in the competition for the new vistor's centre in the Castle Clemenswerth in Sögel, Germany.

June 2018

Power plant Lausward in "Bautechnik"

After just being awarded with the regognition of the Deutscher Ingenieurbaupreis 2018, the building is also presented in detail in this month's issue of the technical magazine Bautechnik (Ernst & Sohn).

18 June 2018

Deutscher Ingenieurbaupreis 2018: recognition

for the project "Kraftwerk Lausward":
We are very happy about the decision of the jury to award the Lausward Power Plant with a recognition. The project is a collaboration with kadawittfeldarchitektur from Aachen and has already received several awards.

29 June 2018

3rd prize in the competition for the "Zentrum für Philologie und Digitalität (ZPD), University of Würzburg

Bruno Fioretti Marquez Architekten, Berlin, won the third prize together with Bollinger + Grohmann in the realization competition for the new "Zentrum für Philologie und Digitalität (ZPD)" of the University of Würzburg.

28 June 2018

ZAK World of façades

B+G Paris will participate in the 'ZAK World of Facades' conference in Paris on the 28th of June. Klaas de Rycke, the managing director of the Paris branch, will give a lecture on the topic of 'Double Curvature in the World of Facades'.

Location: Hôtel Novotel Tour Eiffel, Quai de Grenelle, Paris, France
Time: 2 p.m. - 2:20 p.m.

19 June 2018

ArcelorMittal launches Steligence®

ArcelorMittal has introduced a new concept for the use of steel in construction, which will facilitate the next generation of high performance buildings and construction techniques and create a more sustainable life-cycle for buildings.
On the occasion of the opening ceremony of Steligence® in London on 19 June, Manfred Grohmann was invited to speak about the new Arcelor headquarters in Luxembourg (architect: Wilmotte et Associés), for which our office is responsible for the structural engineering.

June 2018

Won: bridge competition in Liège

for the team of the architects from AgwA and B+G in the architecture competition for a 100 m long footbridge, with a central span of 25m over a railroad, near Liège in Belgium. B+G were responsible for the structural engineering.

4 June 2018

VILIAPRINT: 3D-printed housing in Reims

Bollinger + Grohmann Ingénierie is happy to be part of the team for this visionary project in collaboration with XtreeE, Christian Pottgiesser from architecturespossibles, l’entreprise de travaux Demathieu Bard Construction as well as the Ecole Nationale des Ponts ParisTech et la Fédération Française du Bâtiment (Marne et Grand-Est).

4 June 2018

Groundbreaking ceremony for the EU Commission: Bâtiment Jean Monnet II

The construction of the new building complex includes two construction phases. First, the 180-meter-long 7-storey main building will be built. In the second phase, the 90 meter high office tower is to be built. Both buildings should be completed by the beginning of 2024. The Bâtiment Jean Monnet II was designed by KSP - Jürgen Engel Architekten. Bollinger + Grohmann are responsible for the structural and façade engineering.

2 June 2018, 4.30 pm

Opening of the new entrance area for the Musée de la Cour d'Or

The new entrance area of ​​the Musée de la Cour d'Or in Metz is intended to radically change the perception and image of the museum. The visitor enters the museum through the old Chapelle des Petits-Carmes. This remarkable historic site was built in 1675 and once housed a monastery community and later the old city library.
Bollinger+Grohmann was in charge of the structural design.

23 May 2018

Biskop Gunnerus Gate 14B Complex

The Biskop Gunnerus Gate 14B Complex near Oslo Central Station with C.F.Møller, Kristin Jarmund and Rodeo Architects is featured in today's CTBUH (Council on Tall Buildings and Urban Habitat) Global News - a source for worldwide news on tall buildings and urban development.
Bollinger+Grohmann in Oslo was in charge of the feasibility study.

2 May 2018

Frankfurt Pavilion: The new landmark of the Frankfurt Book-Fair

A self-supporting wooden structure, 6.5 metres tall, with a translucent membrane on 500 square metres – presenting the Frankfurt Pavilion, the new emblem of the Frankfurt Book-Fair (10-14 October 2018). Designed and built by the renowned architects of schneider+schumacher, this iconic structure will make its debut at the 70th Book Fair and will host events with authors and industry experts from around the world.

9 May 2018

Merck Campus on baunetz.de

The recently completed Innovation Centre in Darmstadt is presented in detail on baunetz.de.

Bollinger und Grohmann was in charge of the structural design.

08 May 2018

Award for the Sheikh Zayed Desert Learning Center at Al Ain

We are happy to announce that we’ve been awarded with the "Austrian Green Planet Building Award" for our contribution as structural engineers of one of the most energy efficient buildings in the Gulf region, the Sheikh Zayed Desert Learning Center in Al Ain, UAE.

28 April 2018

Opening of ESO Supernova

The cutting-edge astronomy centre, hosting the largest titled planetarium in Germany, Austria and Switzerland, will open its doors to the public on the 28th of April. The centre is a public educational facility with an interactive exhibition that will engage the visitors to discover and understand the universe around us. Bollinger + Grohmann was in charge of the structural engineering.

18 April 2018

1st prize in the competition for the town hall in Hainburg

STUDIOBORNHEIM won the first prize together with Bollinger+Grohmann in the realization competition for the new town hall in Hainburg.

The work of all 14 applicants will be exhibited from 18-24 April 2018 in the clubhouse of Musikgesellschaft Eintracht Hainstadt 1888 e.V., Kanalstraße 54, 63512 Hainburg (daily open between 3-6 pm).

13 April 2018

Bollinger + Grohmann Ingenieure now also in Stuttgart

Bollinger + Grohmann Ingenieure is since this week also located with a branch in Stuttgart besides the offices in Frankfurt, Berlin, Munich, Vienna, Rome, Paris, Oslo and Melbourne.

The current company EFA Ingenieure GmbH (formerly RFR Stuttgart) joins us with all employees, their know-how and current projects as a new branch.

29 March 2018

ACSE Annual Excellence in Structural Engineering NSW awards 2018

In the ‘Unusual Projects’ category, the decision was unanimous to award ‘Interloop’, a sculptural installation by artist Chris Fox that hangs from Wynyard Station ceiling in Sydney.

21 March 2018

Excellent examples of the architecture in Hessen 2018

Two projects at the same time awarded with the "Simon-Louis-du-Ry-Plakette" were built in collaboration of Bollinger + Grohmann Ingenieure:

Atelier Balkenhol, Kassel , Germany (Punkt4 Architekten BDA, Kassel)
Grimmwelt, Kassel, Germany (kadawittfeldarchitektur, Aachen)

16 March 2018

Grand Prix Afex 2018 : the finalists have been chosen

Among the 10 finalists is also the crematorium on the grounds of the Hörnli cemetery in Basel, Switzerland. The project in collaboration with Frédéric Guarrigues (Paris) and Bernhard Maurer (Zurich). Bollinger + Grohmann engineers were responsible for the structural design.
The award winners will be announced during the Architecture Biennale in Venice (26.05 - 25.11.2018).

8 march 2018

Merck Campus - Innovation Centre in Darmstadt: Completion

On Thursday, March 8, just in time for Merck's 350th birthday, the project was completed. The official inauguration will follow in May.

2 February 2018

Competition for the Archive of the Avantgarde in Dresden

First Prize in the International Architectural Competition for the Archive of the Avantgarde of the Dresden State Art Collections for Nieto Sobejano Architectos (Madrid, Berlin). Bollinger + Grohmann gave expert advice.

23 January 2018

1st prize in the high-rise competition "Nordic Light" in Oslo

Bollinger + Grohmann Engineers have come in a unique position to contribute construction and environmental solutions in the further development of Oslo S, which will become Norway's most important and best-selling collective hub.

October 2017

Mit Teamwork zum KACST Headquarter

Article of Klaus Bollinger, Manfred Grohmann and Simon Ruppert about the Headquarter of the "King Abdullah City for Science and Technology" in the annual edition of the "Bauingenieur" 2017/2018.

July 2017

FOUR, Frankfurt

Frankfurt's new high-rise quarter FOUR is being built on the former DEUTSCHE-BANK-AREAL. The architecture of the buildings was chosen in February 2017 within the course of a competition by the Dutch architecture office UNStudio.

We are pleased to be in charge with the structural engineering together with Werner Sobek Frankfurt in a team (ARGE).

New website online: Ingenieurtalente

The website is supported by the German Consulting Engineers Association VBI state associations and provides information about careers, training and contact persons in the fiel of engineering careers. The goal is to arouse interest among young people for the job of a structural engineer and the workspace in an engineering office.