Comparison of seismic response of a rc frame building of older and modern building practices

Abstract eng:
The paper presents some results of a study on the seismic response of two variants of the three-story reinforced concrete frame structure SPEAR. The basic structure is representative of building practice before the adoption of seismic codes. This structure has been compared with the variant, which was designed completely in accordance with the Eurocode family of standards. For seismic assessment the practice-oriented nonlinear N2 method was used. The results demonstrate low seismic resistance of buildings designed for gravity loads only. On the other hand, the advantages of new standards are visible. By taking into account the requirements of Eurocode 8 it is possible to ensure adequate strength, stiffness and ductility. By means of capacity design it is possible to ensure a global plastic mechanism. All these characteristics contribute to the high seismic resistance of structures designed according to Eurocode 8 and to their satisfactory behaviour during smaller and larger earthquakes, with only modest additional cost. The study also demonstrates the feasibility of the N2 method for the evaluation of the seismic response of building structures, using a commercial program like SAP2000.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket