TY  - CHAP
A1  - Milkova, Kristina
A1  - Butenweg, Christoph
A1  - Dumova-Jovanoska, Elena
T1  - Methodology for development of seismic vulnerability curve for existing unreinforced Masonry buildings
T2  - 17th World Conference on Earthquake Engineering, Sendai, Japan, September 27 to October 2, 2021.
N2  - Seismic behavior of an existing unreinforced masonry building built pre-modern code, located in the City of Ohrid, Republic of North Macedonia has been investigated in this paper. The analyzed school building is selected as an archetype in an ongoing project named “Seismic vulnerability assessment of existing masonry structures in Republic of North Macedonia (SeismoWall)”. Two independent segments were included in this research: Seismic hazard assessment by creating a cite specific response spectra and Seismic vulnerability definition by creating a region - specific series of vulnerability curves for the chosen building topology. A reliable Seismic Hazard Assessment for a selected region is a crucial point for performing a seismic risk analysis of a characteristic building class. In that manner, a scenario – based method that incorporates together the knowledge of tectonic style of the considered region, the active fault characterization, the earth crust model and the historical seismicity named Neo Deterministic approach is used for calculation of the response spectra for the location of the building. Variations of the rupturing process are taken into account in the nucleation point of the rupture, in the rupture velocity pattern and in the istribution of the slip on the fault. The results obtained from the multiple scenarios are obtained as an envelope of the response spectra computed for the cite using the procedure Maximum Credible Seismic Input (MCSI). Capacity of the selected building has been determined by using nonlinear static analysis. MINEA software (SDA Engineering) was used for verification of the structural safety of the chosen unreinforced masonry structure. In the process of optimization of the number of samples, computational cost required in a Monte Carlo simulation is significantly reduced since the simulation is performed on a polynomial response surface function for prediction of the structural response. Performance point, found as the intersection of the capacity of the building and the spectra used, is chosen as a response parameter. Five levels of damage limit states based on the capacity curve of the building are defined in dependency on the yield displacement and the maximum displacement. Maximum likelihood estimation procedure is utilized in the process of vulnerability curves determination. As a result, region specific series of vulnerability curves for the chosen type of masonry structures are defined. The obtained probabilities of exceedance a specific damage states as a result from vulnerability curves are compared with the observed damages happened after the earthquake in July 2017 in the City of Ohrid, North Macedonia.
KW  - Masonry structures
KW  - Vulnerability Curves
KW  - Capacity Curve
KW  - Neo-Deterministic
KW  - Seismic Hazard
Y1  - 2020
N1  - Die Konferenz war ursprünglich für den 13-18 September 2020 angesetzt.
ER  - 
TY  - CHAP
A1  - Milkova, Kristina
A1  - Butenweg, Christoph
A1  - Dumova-Jovanoska, Elena
T1  - Region-sensitive comprehensive procedure for determination of seismic fragility curves
T2  - 1st Croatian Conference on Earthquake Engineering 1CroCEE 22-24 March 2021 Zagreb, Croatia
N2  - Seismic vulnerability estimation of existing structures is unquestionably interesting topic of high priority, particularly after earthquake events. Having in mind the vast number of old masonry buildings in North Macedonia serving as public institutions, it is evident that the structural assessment of these buildings is an issue of great importance. In this paper, a comprehensive methodology for the development of seismic fragility curves of existing masonry buildings is presented. A scenario – based method that incorporates the knowledge of the tectonic style of the considered region, the active fault characterization, the earth crust model and the historical seismicity (determined via the Neo Deterministic approach) is used for calculation of the necessary response spectra. The capacity of the investigated masonry buildings has been determined by using nonlinear static analysis. MINEA software (SDA Engineering) is used for verification of the structural safety of the structures Performance point, obtained from the intersection of the capacity of the building and the spectra used, is selected as a response parameter. The thresholds of the spectral displacement are obtained by splitting the capacity curve into five parts, utilizing empirical formulas which are represented as a function of yield displacement and ultimate displacement. As a result, four levels of damage limit states are determined. A maximum likelihood estimation procedure for the process of fragility curves determination is noted as a final step in the proposed procedure. As a result, region specific series of vulnerability curves for structures are defined.
KW  - seismic risk
KW  - seismic vulnerability
KW  - fragility curves
KW  - masonry structures
Y1  - 2021
U6  - http://dx.doi.org/10.5592/CO/1CroCEE.2021.158
SP  - 121
EP  - 128
PB  - University of Zagreb
CY  - Zagreb
ER  - 
TY  - CHAP
A1  - Milkova, Kristina
A1  - Rosin, Julia
A1  - Butenweg, Christoph
A1  - Dumova-Jovanoska, Elena
T1  - Development of Seismic Vulnerability Curves for Region Specific Masonry Buildings
T2  - 16th European Conference on Earthquake Engineering, Thessaloniki, 18-21 June, 2018
Y1  - 2018
N1  - Paper No 10522
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Mistler, M.
A1  - Butenweg, Christoph
A1  - Anthoine, A.
T1  - Evaluation of the failure criterion for masonry by homogenisation
T2  - Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping and C.A. Mota Soares
Y1  - 2004
SN  - 0-948749-95-4
U6  - http://dx.doi.org/10.4203/ccp.79.201
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - JOUR
A1  - Mistler, Michael
A1  - Anthoine, A.
A1  - Butenweg, Christoph
T1  - In-plane and out-of-plane homogenisation of masonry
JF  - Computers & structures
Y1  - 2007
U6  - http://dx.doi.org/10.1016/j.compstruc.2006.08.087
SN  - 1879-2243 (E-Journal); 0045-7949 (Print)
VL  - Volume 85
IS  - Issues 17-18
SP  - 1321
EP  - 1330
ER  - 
TY  - JOUR
A1  - Mistler, Michael
A1  - Butenweg, Christoph
T1  - Verformungsbasierter seismischer Nachweis von Mauerwerksbauten mit der Kapazitätsspektrum-Methode
JF  - Mauerwerk : European journal of masonry
Y1  - 2005
U6  - http://dx.doi.org/10.1002/dama.200590098
SN  - 1437-1022 (E-Journal); 1432-3427 (Print)
VL  - Volume 9
IS  - Issue 6
SP  - 255
EP  - 261
ER  - 
TY  - CHAP
A1  - Mistler, Michael
A1  - Butenweg, Christoph
T1  - A seismic design procedure for masonry buildings
T2  - Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping
Y1  - 2005
SN  - 1-905088-00-0
U6  - http://dx.doi.org/10.4203/ccp.81.193
SP  - 465
EP  - 467
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - JOUR
A1  - Mistler, Michael
A1  - Butenweg, Christoph
A1  - Fehling, Ekkehard
A1  - Stürz, Jochen
T1  - Verformungsbasierte seismische Bemessung von Mauerwerksbauten auf Grundlage zyklischer Schubwandversuche
JF  - Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt
Y1  - 2007
SN  - 1434-6591
VL  - Band 82
SP  - S3
EP  - S11
ER  - 
TY  - JOUR
A1  - Mistler, Michael
A1  - Butenweg, Christoph
A1  - Meskouris, Konstantin
T1  - Modelling methods of historic masonry buildings under seismic excitation
JF  - Journal of seismology
Y1  - 2006
U6  - http://dx.doi.org/10.1007/s10950-006-9033-z
SN  - 1383-4649 (Print) ; 1573-157X (E-Journal)
VL  - Volume 10
IS  - No. 4
SP  - 497
EP  - 510
ER  - 
TY  - JOUR
A1  - Morandi, Paolo
A1  - Butenweg, Christoph
A1  - Breis, Khaled
A1  - Beyer, Katrin
A1  - Magenes, Guido
ED  - Ansal, Atilla
T1  - Latest findings on the behaviour factor q for the seismic design of URM buildings
JF  - Bulletin of Earthquake Engineering
N2  - Recent earthquakes as the 2012 Emilia earthquake sequence showed that recently built unreinforced masonry (URM) buildings behaved much better than expected and sustained, despite the maximum PGA values ranged between 0.20–0.30 g, either minor damage or structural damage that is deemed repairable. Especially low-rise residential and commercial masonry buildings with a code-conforming seismic design and detailing behaved in general very well without substantial damages. The low damage grades of modern masonry buildings that was observed during this earthquake series highlighted again that codified design procedures based on linear analysis can be rather conservative. Although advances in simulation tools make nonlinear calculation methods more readily accessible to designers, linear analyses will still be the standard design method for years to come. The present paper aims to improve the linear seismic design method by providing a proper definition of the q-factor of URM buildings. These q-factors are derived for low-rise URM buildings with rigid diaphragms which represent recent construction practise in low to moderate seismic areas of Italy and Germany. The behaviour factor components for deformation and energy dissipation capacity and for overstrength due to the redistribution of forces are derived by means of pushover analyses. Furthermore, considerations on the behaviour factor component due to other sources of overstrength in masonry buildings are presented. As a result of the investigations, rationally based values of the behaviour factor q to be used in linear analyses in the range of 2.0–3.0 are proposed.
KW  - Unreinforced masonry buildings
KW  - Modern constructions
KW  - Seismic design
KW  - Linear elastic analysis
KW  - Behaviour factor q
Y1  - 2022
U6  - http://dx.doi.org/10.1007/s10518-022-01419-7
SN  - 1573-1456
SN  - 1570-761X
VL  - 20
IS  - 11
SP  - 5797
EP  - 5848
PB  - Springer Nature
CY  - Cham
ER  - 
TY  - CHAP
A1  - Morandi, Paolo
A1  - Butenweg, Christoph
A1  - Breis, Khaled
A1  - Beyer, Katrin
A1  - Magenes, Guido
ED  - Arion, Christian
ED  - Scupin, Alexandra
ED  - Ţigănescu, Alexandru
T1  - Behaviour factor q for the seismic design of URM buildings
T2  - The Third European Conference on Earthquake Engineering and Seismology September 4 – September 9, 2022, Bucharest
N2  - Recent earthquakes showed that low-rise URM buildings following codecompliant seismic design and details behaved in general very well without substantial damages. Although advances in simulation tools make nonlinear calculation methods more readily accessible to designers, linear analyses will still be the standard design method for years to come. The present paper aims to improve the linear seismic design method by providing a proper definition of the q-factor of URM buildings. Values of q-factors are derived for low-rise URM buildings with rigid diaphragms, with reference to modern structural configurations realized in low to moderate seismic areas of Italy and Germany. The behaviour factor components for deformation and energy dissipation capacity and for overstrength due to the redistribution of forces are derived by means of pushover analyses. As a result of the investigations, rationally based values of the behaviour factor q to be used in linear analyses in the range of 2.0 to 3.0 are proposed.
KW  - unreinforced masonry buildings
KW  - modern constructions
KW  - seismic design
KW  - linear elastic analysis;
KW  - behaviour factor q
Y1  - 2022
SN  - 978-973-100-533-1
SP  - 1184
EP  - 1194
ER  - 
TY  - JOUR
A1  - Mykoniou, Konstantin
A1  - Butenweg, Christoph
A1  - Holtschoppen, Britta
A1  - Klinkel, Sven
T1  - Seismic response analysis of adjacent liquid-storage tanks
JF  - Earthquake engineering and structural dynamics
N2  - A refined substructure technique in the frequency domain is developed, which permits consideration of the interaction effects among adjacent containers through the supporting deformable soil medium. The tank-liquid systems are represented by means of mechanical models, whereas discrete springs and dashpots stand for the soil beneath the foundations. The proposed model is employed to assess the responses of adjacent circular, cylindrical tanks for harmonic and seismic excitations over wide range of tank proportions and soil conditions. The influence of the number, spatial arrangement of the containers and their distance on the overall system's behavior is addressed. The results indicate that the cross-interaction effects can substantially alter the impulsive components of response of each individual element in a tank farm. The degree of this impact is primarily controlled by the tank proportions and the proximity of the predominant natural frequencies of the shell-liquid-soil systems and the input seismic motion. The group effects should be not a priori disregarded, unless the tanks are founded on shallow soil deposit overlying very stiff material or bedrock.
KW  - liquid-structure interaction
KW  - seismic response
KW  - impulsive effects
KW  - liquid-storage tank
KW  - structure-soil-structure interaction
Y1  - 2016
U6  - http://dx.doi.org/10.1002/eqe.2726
SN  - 1096-9845 (E-Journal); 0098-8847 (Print)
VL  - 45
IS  - 11
SP  - 1779
EP  - 1796
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Norda, Hannah
A1  - Butenweg, Christoph
T1  - Möglichkeiten und Grenzen der Anwendbarkeit statisch nichtlinearer Verfahren nach DIN EN 1998-1
JF  - Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt
Y1  - 2011
SN  - 1436-4867 (E-Journal); 0005-6650 (Print)
N1  - Printausgabe in der Bibliothek Bayernallee vorhanden: 13 Z 049-2011
VL  - Band 86
SP  - S13
EP  - S21
PB  - VDI Fachmedien
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Park, Jin
A1  - Butenweg, Christoph
A1  - Reindl, Lukas
T1  - Untersuchung der Eignung von Ankerschienensystemen unter Erdbebeneinwirkungen
T2  - Conference proceedings / ANSYS Conference & 28th CADFEM Users´ Meeting 2010 : 3. - 5. November 2010, Eurogess Aachen / CADFEM; ANSYS
Y1  - 2010
SN  - 3-937523-07-3
SP  - Dokument 2.11.1
PB  - CADFEM [u.a.]
CY  - Grafing
ER  - 
TY  - CHAP
A1  - Park, Jin
A1  - El-Daib, Khaled
A1  - Butenweg, Christoph
A1  - Gellert, Christoph
T1  - A novel macroelement approach for masonry walls
T2  - Proceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011 : Leuven, Belgium, 4 - 6 July 2011 / Katholieke Universiteit Leuven, ... G. De Roeck ... (eds)
Y1  - 2011
SN  - 978-90-76019-31-4
SP  - 3281
EP  - 3286
PB  - K. U. Leuven, Dep. of Civil Engineering
CY  - Leuven
ER  - 
TY  - CHAP
A1  - Rajan, S.
A1  - Butenweg, Christoph
A1  - Dalguer, L. A.
A1  - An, J. H.
A1  - Renault, P.
A1  - Klinkel, S.
T1  - Fragility curves for a three-storey reinforced concrete test structure of the international benchmark SMART 2013
T2  - 16th World Conference on Earthquake, 16WCEE 2017 Santiago Chile, January 9th to 13th 2017
Y1  - 2017
N1  - Paper No 2119
PB  - Chilean Association on Seismology and Earthquake Engineering (ACHISINA)
ER  - 
TY  - CHAP
A1  - Rajan, Sreelakshmy
A1  - Holtschoppen, B.
A1  - Dalguer, L. A.
A1  - Klinkel, S.
A1  - Butenweg, Christoph
ED  - Sas, P.
T1  - Seismic fragility analysis of a non-conventional reinforced concrete structure considering different uncertainties
T2  - Proceedings of ISMA2016, International Conference on Noise and Vibration Engineering/USD2016, International Conference on Uncertainty in Structural Dynamics, / ISMA 2016, USD 2016
Y1  - 2016
SP  - 4213
EP  - 4225
PB  - KU Leuven
CY  - Leuven
ER  - 
TY  - CHAP
A1  - Rajan, Sreelakshmy
A1  - Kubalski, Thomas
A1  - Altay, Okyay
A1  - Dalguer, Luis A
A1  - Butenweg, Christoph
T1  - Multi-dimensional fragility analysis of a RC building with components using response surface method
T2  - 24th International Conference on Structural Mechanics in Reactor Technology, Busan, Korea, 20-25 August, 2017
N2  - Conventional fragility curves describe the  vulnerability of the  main  structure under  external  hazards. However, in complex structures such as nuclear power plants, the safety or the risk depends also on the components associated with a system. The classical fault tree analysis gives an overall view of the failure and contains several subsystems to the main event, however, the interactions in the subsystems are not well  represented.  In  order  to  represent  the  interaction  of  the  components,  a  method  suggested  by Cimellaro et al. (2006) using multidimensional performance limit state functions to obtain the  system fragility curves is adopted. This approach gives the possibility of deriving the cumulative fragility taking into account the interaction of the response of different components. In this paper, this approach is used to evaluate seismic risk of a representative electrical building infrastructure, including the component, of a nuclear power plant. A simplified model of the structure, with nonlinear material behavior is employed for  the  analysis  in  Abaqus©. The  input  variables  considered  are  the  material parameters,  boundary conditions and the seismic input. The variability of the seismic input is obtained from selected ground motion time histories of  spectrum compatible  synthetic ccelerograms.  Unlike the  usual Monte  Carlo methods used for the probabilistic analysis of the structure, a computationally effective response surface method is used. This method reduces the computational effort of the calculations by reducing the required 
number of samples.
Y1  - 2017
SN  - 9781510856776
SP  - 3126
EP  - 3135
PB  - International Assn for Structural Mechanics in Reactor Technology (IASMiRT)
CY  - Raleigh, USA
ER  - 
TY  - CHAP
A1  - Reindl, Lukas
A1  - Butenweg, Christoph
A1  - Kubalski, Thomas
T1  - Numerical simulation of unreinforced masonry walls subject to dynamic out-of-plane loading
T2  - COMPDYN 2011 : ECCOMAS Thematic Conference ; Proceedings of the 3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering ; 25-28 May, 2011, Corfu, Greece / Eds.: M. Papadrakakis ...
Y1  - 2011
SN  - 978-960-99994-0-3
SP  - 1
EP  - 10
PB  - National Technical Univ. of Athens
CY  - Athen
ER  - 
TY  - CHAP
A1  - Reindl, Lukas
A1  - Park, Jin
A1  - Norda, Hannah
A1  - Butenweg, Christoph
T1  - Seismic design of masonry walls subject to out-of-plane bending
T2  - Proceedings of the Tenth International Conference on Computational Structures Technology : Valencia, Spain, 14 - 17 September 2010 / organised in association with: Universidad Politecnica de Valencia ... Ed. by B. H. V. Topping ...
Y1  - 2010
SN  - 978-1-905088-36-2
U6  - http://dx.doi.org/10.4203/ccp.93.348
SP  - Paper 348
PB  - Civil-Comp Press
CY  - Kippen
ER  -