000013117 001__ 13117
000013117 005__ 20161114160328.0
000013117 04107 $$aeng
000013117 046__ $$k2009-06-22
000013117 100__ $$aWijesundara K., K.
000013117 24500 $$aNumerical simulation of behaviour of gusset plate connections in concentrically braced frame under the cyclic loading

000013117 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013117 260__ $$bNational Technical University of Athens, 2009
000013117 506__ $$arestricted
000013117 520__ $$2eng$$aConcentrically braced frames (CBFs) are commonly used for the seismic design in high seismic areas due to its high stiffness and strength compare to the moment resisting frame. Past experimental studies [10, 11] have shown that CBFs exihibit poor performances under the severe earthquake loading, resulting brace fracture and the failure in the gusset plate connections. So this study investigate the performances of the brace to beam-column connection through the gusset plate designed according to EC8 [2] and AISC [4] codes and an approach with trilinear yield mechanism, to optimize the design of the gusset plate. For this purpose, 3 finite element models (FE models) are developed in the Midas computer program and a comprehensive series of inelastic analyses are performed to better understand the cyclic behaviour of the gusset plate and the surrounding elements. Two different cyclic loading: nearly symmetrical loading history in compression and tension and the highly unsymetrical loading history are applied to each of the model to investigate the effect of the loading history to the performance of brace and the gusset plate connections. The results of inelastic analyses of the finite element models (FE models) show that the gusset plate connection can significantly influence to the cyclic performance of the CBFs and the try-linear approach could optimize the design of the gusset plate connection. Furthermore, the results show that there is significant influence of the applied loading history to the fracture life of the brace.

000013117 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013117 653__ $$aConcentrically Braced Frame, Gusset Plate Connection, FE Models, Yield Mechanism, Equivalent Plastic Strain, Local Buckling. Abstract. Concentrically braced frames (CBFs) are commonly used for the seismic design in high seismic areas due to its high stiffness and strength compare to the moment resisting frame. Past experimental studies [10, 11] have shown that CBFs exihibit poor performances under the severe earthquake loading, resulting brace fracture and the failure in the gusset plate connections. So this study investigate the performances of the brace to beam-column connection through the gusset plate designed according to EC8 [2] and AISC [4] codes and an approach with trilinear yield mechanism, to optimize the design of the gusset plate. For this purpose, 3 finite element models (FE models) are developed in the Midas computer program and a comprehensive series of inelastic analyses are performed to better understand the cyclic behaviour of the gusset plate and the surrounding elements. Two different cyclic loading: nearly symmetrical loading history in compression and tension and the highly unsymetrical loading history are applied to each of the model to investigate the effect of the loading history to the performance of brace and the gusset plate connections. The results of inelastic analyses of the finite element models (FE models) show that the gusset plate connection can significantly influence to the cyclic performance of the CBFs and the try-linear approach could optimize the design of the gusset plate connection. Furthermore, the results show that there is significant influence of the applied loading history to the fracture life of the brace.

000013117 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013117 720__ $$aWijesundara K., K.$$iBolognini, D.$$iNascimbene, R.
000013117 8560_ $$ffischerc@itam.cas.cz
000013117 8564_ $$s806323$$uhttps://invenio.itam.cas.cz/record/13117/files/CD155.pdf$$yOriginal version of the author's contribution as presented on CD, section: Steel and composite structures - ii.
000013117 962__ $$r13074
000013117 980__ $$aPAPER