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Probabilistic assessment of calculation resistance models of composite section with partial shear interaction

Ivica Džeba ; Sveučilište u Zagrebu, Građevinski fakultet, Zavod za konstrukcije, Kačićeva 26, 10000 Zagreb, Croatia
Ivan Ćurković orcid id orcid.org/0000-0001-8607-7428 ; Sveučilište u Zagrebu, Građevinski fakultet, Zavod za konstrukcije, Kačićeva 26, 10000 Zagreb, Croatia
Ivan Palijan orcid id orcid.org/0000-0001-8899-1731 ; Palijan d.o.o., Štefanovečka 26, 10000 Zagreb, Croatia


Puni tekst: hrvatski pdf 571 Kb

str. 863-870

preuzimanja: 555

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Puni tekst: engleski pdf 571 Kb

str. 863-870

preuzimanja: 350

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Sažetak

Composite beams in buildings with partial shear connection have been researched. The procedure of determining the exact resistance of such composite beams in bending with partial shear interaction is iterative and tedious. Four different calculation resistance models of various authors for non-iterative determination of such cross-section resistance have been analysed. Bending resistance of cross-section obtained from laboratory tests is compared with the resistance calculated from different models after which the calculation models are probabilistically evaluated. The result is the most certain non-iterative calculation resistance model of cross-section in bending for a beam with partial shear interaction. Furthermore, a new resistance model is proposed. The proposed model is based on a linear model which is then modified according to the most favourable non-iterative calculation resistance model. Correction coefficient is obtained on a deterministic level, after which probabilistic evaluation of the new model is conducted. The result is a very simple non-iterative model with the reliability levels close to the target value of the reliability index.

Ključne riječi

composite beam; model uncertainty; partial shear interaction; reliability index

Hrčak ID:

93560

URI

https://hrcak.srce.hr/93560

Datum izdavanja:

12.12.2012.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.586 *