Second European Workshop on the Seismic Behaviour of Asymmetric and Irregular Structures

8-9 October 1999, Istanbul

A workshop on ‘Seismic Behaviour of Asymmetric and Irregular Structures’ was held in Istanbul, Turkey from October 8 to 9 1999, hosted by Istanbul Technical University , Civil Engineering Faculty. The workshop was linked with the activities of EAAE Task Group TG8 on Seismic Behaviour of Irregular and Complex Structures.

Discussions held by participants from different European countries covered five sessions:

First Session

Dumanoglu, A. A., Ates, S. "Dynamic Response Analysis of 3D-Base Isolated Asymmetric Building Structures"

Kilar, V., Fajfar P. "Application of the BST Surface For Seismic Evaluation of an Asymmetric Multi-Storey...."

Sommer, A., Weber, B., Bachmann, H. "Torsion and Ductility Demands on RC Buildings Under Earthquake Action"

Ozmen, P., Pala, S. Yalçin, K. "Investigations of Set-Back Irregularity in EQ Resistant Design of Multi-Storey Structures"

Sofronie, R. "Design Concepts of Irregular Buildings"

Bonev, Z., Dimova, S., Petrov, P. "Study of Seismic Design of Irregular Structural Systems"

Second Session

Paulay, T. "Some Principles Relevant to the Seismic Torsional Response of Ductile Buildings"

Rutenberg A., Leibovich E. "What is Wrong With The Seismic Code-Design For Asymmetric Structures"

Dimova, S., Bonev, Z., Petrov, P. "Seismic Design of Irregular Structures Including Rotational Component..."

Marusic, D., Fajfar, P. "Non-linear Seismic Response of Asymmetric Steel Frame Buildings"

Essiz, O., Sahin, M., Okten S. "High-Tech Structures under EQ Effects"

Third Session

Smith, R. S. H., Tso, W. K. "Re- Evaluation of Seismic Torsional Provisions"

Zembaty, Z., Rutenberg, A. "Effects of Soil Irregularities on Seismic Response of Multi-Support Structures"

Moghadam, A. S., Tso, W. K. "Inelastic Wall-Frame Interaction in Asymmetric Buildings"

Celebi, E., Gunduz, N. "Elastic EQ Analysis of Mono-Symmetric Single-Story Buildings Including Soil-Structure Interaction"

Perus, I., Fajfar, P. "On the Seismic Response of Idealised Asymmetric Single-Storey Structures"

Ghersi, A., Marino, E., Rossi, P.P. "From One-Storey to Multi-Storey Asymmetric Systems: Conceptual Differences and Problems"

Fourth Session

Negro, P. Molina, F.J. "Bi-Directional Pseudo-Dynamic Tests on a Three-Storey Full Scale Composite Asymmetric Building"

Ghersi, A., Rossi P. P. "Seismic Response of Mono and Bi-Eccentric In-Plan Irregular Systems"

Como, M., De Stefano, M., Ramasco, R. "Seismic Response of Columns under Three Components of Earthquakes"

Melkumyan M., Vardanian, G. "Evaluation of EQ Resistance and Non-Linear Behaviour of Tichrin Educational Hospital, 14-Story RC Frame Buildings at Lattakia City"

Senel, S. M., Kaplan, H., Atımtay, E. "Assessment of Lateral Diaphragm Irregularities"

Fifth Session

Ghersi, A., Marino, E., Rossi, P. P. "Influence of Design Criteria on the Inelastic Response of Regularly Asymmetric Multi-Storey Buildings"

Zorbozan, M., Ozmen, G. " A Method of Successive Approximations for the Lateral Load Analysis of Non-Orthogonal Multi-Storey Structures"

Tezcan S. S., Alhan C. "Irregular Structures under Seismic Loading"

Gülay, G., Özmen, G., Calim, G. "A parametric Investigation of Multi-Storey Buildings with Torsional Irregularity"

Faella, G., Magliulo, G., Ramasco, R. " Seismic Response of Asymmetric RC Buildings under Bi-Directional Input Ground Motion"

A special session in relation with Kocaeli Earthquake was also held:

Special Session

Ansal, A. "Kocaeli Earthquake"

Karadoğan, F. "Prefabricated Industrial Type Structures in Adapazari and Microtremor Measurements on Irregular Structures"

The activities were ended after paying a short visit to most damaged sites within the disaster area.