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RISS 인기검색어
- 검색키워드
- 저자 : Matej Fischinger (검색결과 2 건)
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Implementation of a macro model to predict seismic response of RC structural walls
Matej Fischinger,Tatjana Isakovic,Peter Kante 한국계산역학회 2004 Computers and Concrete, An International Journal Vol.1 No.2
A relatively simple multiple-vertical-line-element macro model has been incorporated into a standard computer code DRAIN-2D. It was used in blind predictions of seismic response of cantilever RC walls subjected to a series of consequent earthquakes on a shaking table. The model was able to predict predominantly flexural response with relative success. It was able to predict the stiffness and the strength of the pre-cracked specimen and time-history response of the highly nonlinear wall as well as to simulate the shift of the neutral axis and corresponding varying axial force in the cantilever wall. However, failing to identify the rupture of some brittle reinforcement in the third test, the model was not able to predict post-critical, near collapse behaviour during the subsequent response to two stronger earthquakes. The analysed macro model seems to be appropriate for global analyses of complex building structures with RC structural walls subjected to moderate/strong earthquakes. However, it cannot, by definition, be used in refined research analyses monitoring local behaviour in the post critical region.
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Nonlinear finite element modelling of centric dowel connections in precast buildings
Blaž Zoubek,Yasin Fahjan,Matej Fischinger,Tatjana Isaković 사단법인 한국계산역학회 2014 Computers and Concrete, An International Journal Vol.14 No.4
The modelling approach in the case of connections in precast buildings is specific. The assembly of the constitutive parts of the connection requires the inclusion of contact definitions in the model. In addition, the material non-linearity including the influence of the spatial stress distribution should be takeninto account where appropriate. Here a complex model of a beam-to-column dowel connection is presented. Experiments on the analysed connection were performed within the framework of the European project SAFECAST (Performance of Innovative Mechanical Connections in Precast Building Structures under Seismic Conditions). Several material and interaction parameters were investigated and the influence of each of them was evaluated. The set of parameters which gave the best match with the experiments was chosen.
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