Redistribution effects in linear elastic analyses of continuous composite steel-concrete beams according to Eurocode 4

Abstract

Different analytical methods, with different levels of approximations and accuracy, are available for analysis of continuous composite steel-concrete beams. The Eurocode 4 recommends few simple methods for calculation of creep, shrinkage, cracking of concrete and shear lag effects that are explained in the paper. Through the numerical examples of four continuous composite steel-concrete beams, the proposed methods of analyses are evaluated and compared. Practical recommendations for analysis of this type of girders are formulated.

Keywords

• composite structures
• creep
• shrinkage
• cracking of concrete
• shear-lag