Optimized seismic retrofit of steel-concrete composite frames

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dc.contributor.author Papavasileiou, G en
dc.contributor.author Charmpis, DC en
dc.contributor.author Lagaros, ND en
dc.date.accessioned 2014-03-01T02:53:25Z
dc.date.available 2014-03-01T02:53:25Z
dc.date.issued 2011 en
dc.identifier.uri http://hdl.handle.net/123456789/36299
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-80054795410&partnerID=40&md5=9b0fc6f86242813ceb4db9455d509c0f en
dc.subject Composite en
dc.subject Concrete en
dc.subject Optimization en
dc.subject Retrofit en
dc.subject Seismic en
dc.subject Steel en
dc.subject.other 20th century en
dc.subject.other Composite en
dc.subject.other Construction method en
dc.subject.other Design codes en
dc.subject.other Design method en
dc.subject.other Economic considerations en
dc.subject.other Eurocodes en
dc.subject.other Existing structure en
dc.subject.other High stiffness en
dc.subject.other Market competition en
dc.subject.other Minimal cost en
dc.subject.other Minimum cost en
dc.subject.other Multistorey buildings en
dc.subject.other Retrofit en
dc.subject.other Seismic en
dc.subject.other Seismic retrofits en
dc.subject.other Steel concrete structure en
dc.subject.other Steel-concrete en
dc.subject.other Steel-concrete composite en
dc.subject.other Structural codes en
dc.subject.other Structural systems en
dc.subject.other Total costs en
dc.subject.other Civil engineering en
dc.subject.other Competition en
dc.subject.other Computational methods en
dc.subject.other Costs en
dc.subject.other Earthquakes en
dc.subject.other Engineering geology en
dc.subject.other Retrofitting en
dc.subject.other Seismic design en
dc.subject.other Structural dynamics en
dc.subject.other Structural optimization en
dc.title Optimized seismic retrofit of steel-concrete composite frames en
heal.type conferenceItem en
heal.publicationDate 2011 en
heal.abstract The present paper investigates the optimum way of reinforcing existing composite steel-concrete structures that violate the criteria suggested in Eurocode 4. The motivation to conduct the specific research is the need for existing structures to conform to new regulations without extensive operations. Composite steel-concrete systems are an attractive construction method, since they have been found to be cost-effective, especially for multi-storey buildings, and also successfully take advantage of the high stiffness of steel without its vulnerability to fire. These structural systems are not new and have been used since the beginning of the 20th century, so there is a number of existing structures which have been designed with previous versions of structural codes and have to conform to the modern regulations. It is obvious that each new set of design codes takes into account new dangers that might occur and updates the design methods already used. On the other hand, the economic considerations which have to be taken into account and the high market competition force the engineers to seek solutions that are at the same time easily and rapidly constructed, but also yield the required performance with the minimum cost. The present work presents two retrofit methods for composite steel-concrete frames, which are evaluated in the context of structural optimization. The frames considered fail to satisfy the provisions of Eurocode 4 and are therefore retrofitted with the two aforementioned methods in a way minimizing the total cost of steel and concrete required for the retrofit. This way, the frames are upgraded with minimal cost. en
heal.journalName ECCOMAS Thematic Conference - COMPDYN 2011: 3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering: An IACM Special Interest Conference, Programme en

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