TY  - JOUR
A1  - Baumgartner, Werner
A1  - Fidler, Florian
A1  - Weth, Agnes
A1  - Habbecke, Martin
A1  - Jakob, Peter
A1  - Butenweg, Christoph
A1  - Böhme, Wolfgang
T1  - Investigating the locomotion of the sandfish in desert sand using NMR-Imaging
JF  - PLOS ONE
N2  - The sandfish (Scincus scincus) is a lizard having the remarkable ability to move through desert sand for significant distances. It is well adapted to living in loose sand by virtue of a combination of morphological and behavioural specializations. We investigated the bodyform of the sandfish using 3D-laserscanning and explored its locomotion in loose desert sand using fast nuclear magnetic resonance (NMR) imaging. The sandfish exhibits an in-plane meandering motion with a frequency of about 3 Hz and an amplitude of about half its body length accompanied by swimming-like (or trotting) movements of its limbs. No torsion of the body was observed, a movement required for a digging-behaviour. Simple calculations based on the Janssen model for granular material related to our findings on bodyform and locomotor behaviour render a local decompaction of the sand surrounding the moving sandfish very likely. Thus the sand locally behaves as a viscous fluid and not as a solid material. In this fluidised sand the sandfish is able to “swim” using its limbs.
KW  - magnetic resonance imaging
KW  - body limbs
KW  - swimming
KW  - lizards
KW  - deserts
Y1  - 2008
U6  - http://dx.doi.org/10.1371/journal.pone.0003309
SN  - 1932-6203
VL  - 3
IS  - 10
PB  - Plos
CY  - San Francisco, California, US
ER  - 
TY  - JOUR
A1  - Meskouris, Konstantin
A1  - Butenweg, Christoph
A1  - Gellert, Christoph
T1  - Iterativ verbessert : die RWTH Aachen entwickelt eine Software für einfache Nachweise von Mauerwerksbauten in Erdbebengebieten
JF  - Deutsches Ingenieur-Blatt : Ingenieurwesen, Bautechnik, Umweltschutz ; Organ der deutschen Ingenieurkammern / Hrsg.: Bundes-Ingenieurkammer e.V.
Y1  - 2009
SN  - 2365-192X
N1  - Printausg. in der Bibliothek Bayernallee vorhanden: 13 Z 842
IS  - Heft 5
SP  - 31
EP  - 36
PB  - Rauh Medien GmbH
CY  - Wandlitz
ER  - 
TY  - JOUR
A1  - Holtschoppen, B.
A1  - Butenweg, Christoph
A1  - Meskouris, Konstantin
T1  - Erdbebensichere Auslegung von Industrieanlagen
JF  - Der Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik
Y1  - 2009
SN  - 0005-6650
IS  - März
SP  - S9
EP  - S14
PB  - VDI Fachmedien
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Holtschoppen, Britta
A1  - Butenweg, Christoph
A1  - Meskouris, Konstantin
T1  - Seismic design of non-structural components in industrial facilities
JF  - International journal of engineering under uncertainty
Y1  - 2009
SN  - 0975-4806
VL  - Volume 1
SP  - 1
EP  - 13
ER  - 
TY  - JOUR
A1  - Meskouris, Konstantin
A1  - Butenweg, Christoph
A1  - Gellert, Christoph
T1  - Einfache Nachweise : einige Beispiele für die Anwendung des Bemessungsprogramms der RWTH Aachen für den Nachweis von Mauerwerksbauten in Erdbebengebieten
JF  - Deutsches Ingenieur-Blatt : Ingenieurwesen, Bautechnik, Umweltschutz ; Organ der deutschen Ingenieurkammern / Hrsg.: Bundes-Ingenieurkammer e.V.
Y1  - 2009
SN  - 0946-2422
N1  - Printausgabe in der Bibliothek Bayernallee vorhanden: 13 Z 842
IS  - Heft 6
SP  - 26
EP  - 29
PB  - Rauh Medien GmbH
CY  - Wandlitz
ER  - 
TY  - CHAP
A1  - Gömmel, Andreas
A1  - Kob, Malte
A1  - Niendorf, Thoralf
A1  - Butenweg, Christoph
T1  - An approach for numerical calculation of glottal flow during glottal closure
T2  - Proceedings / NAG/DAGA 2009, International Conference on Acoustics : Rotterdam, 23 - 26 March 2009 ; [including the 35th German Annual Conference on Acoustics (DAGA)] / [organisers: Acoustical Society of the Netherlands (NAG); German Acoustical Society (DEGA) ...]. Ed. by Marinus M. Boone
Y1  - 2009
SN  - 978-3-9808659-6-8
SP  - 1722
EP  - 1725
PB  - DEGA
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Gellert, Christoph
A1  - Butenweg, Christoph
T1  - Nichtlinearer Erdbebennachweis von Mauerwerksbauten
T2  - Erdbeben und Mauerwerk : 11. D-A-CH-Tagung 2009 ; [10./11. September 2009 in Zürich] / SGEB, Swiss Society for Earthquake Engineering and Structural Dynamics; Schweizerischer Ingenieur- und Architektenverein, Fachgruppe für Brückenbau und Hochbau. [Hrsg. Dazio, Alessandro ...]
Y1  - 2009
SN  - 978-3-03732-021-1
SP  - 125
EP  - 132
PB  - SIA
CY  - Zürich
ER  - 
TY  - CHAP
A1  - Meskouris, Konstantin
A1  - Holler, Stefan
A1  - Butenweg, Christoph
A1  - Meiners, Daniel
T1  - A multiphase model with hypoplastic formulation of the solid phase and its application to earthquake engineering problems
T2  - Computational structural dynamics and earthquake engineering / ed. by Manolis Papadrakakis .... (Structures and infrastructures series ; 2)
Y1  - 2009
SN  - 978-0-415-45261-8
U6  - http://dx.doi.org/10.1201/9780203881637.ch19
SP  - 293
EP  - 308
PB  - CRC Press
CY  - Boca Raton, Fla. [u.a.]
ER  - 
TY  - CHAP
A1  - Butenweg, Christoph
A1  - Gellert, Christoph
T1  - Erdbebenberechnung von Mauerwerksbauten nach DIN EN 1998-1 (12.2010)
T2  - Mauerwerksbau-Praxis / Schubert; Schneider; Schoch (Hrsg.)
Y1  - 2009
SN  - 978-3-89932-217-0
SP  - 299
EP  - 343
PB  - Bauwerk
CY  - Berlin
ER  - 
TY  - GEN
A1  - Butenweg, Christoph
A1  - Gellert, Christoph
A1  - Reindl, Lukas
A1  - Meskouris, Konstantin
T1  - A nonlinear method for the seismic safety verification of masonry buildings
N2  - In order for traditional masonry to stay a competitive building material in seismically active regions there is an urgent demand for modern, deformation-based verification procedures which exploit the nonlinear load bearing reserves. The Capacity Spectrum Method (CSM) is a widely accepted design approach in the field of reinforced concrete and steel construction. It compares the seismic action with the load-bearing capacity of the building considering nonlinear material behavior with its post-peak capacity. The bearing capacity of the building is calculated iteratively using single wall capacity curves. This paper presents a new approach for the bilinear approximation of single wall capacity curves in the style of EC6/EC8 respectively FEMA 306/FEMA 356 based on recent shear wall test results of the European Collective-Research Project “ESECMaSE”. The application of the CSM to masonry structures by using bilinear approximations of capacity curves as input is demonstrated on the example of a typical German residential home.
Y1  - 2009
N1  - COMPDYN 2009 - 2nd International Conference on Computational Methods in Structural Dynamics & Earthquake Engineering. Isles of Rhodes, Greece, June 22-24,2009.
PB  - National Technical University of Athens
CY  - Athen
ER  -