Investigation of Concrete Cracking Effect in Deck Slab of Continuous Bridges

Abstract

Analysis of the literature has shown that two main factors, which should be taking into consideration in designing of continuous bridges, are the influence of cracking on serviceability of the structures and inelastic behaviour of structural elements. Crack control is often the governing design criterion for the choice of the amount of longitudinal pre-stressing of reinforced concrete bridges as well as for the construction sequence of composite bridges. Present paper investigates cracking behaviour of reinforced concrete decks of continuous bridges over intermediate supports. It should be noted that this section behaves almost as pure tension ties. The paper presents results of complex investigation which has included experimental and numerical analyses of deformations and cracking resistance of reinforced concrete tensile members and a deck slab. Different techniques on crack controlling were analysed. Analysis was showed that the techniques worth predicting deformational behaviour of reinforced concrete members as well as assuring the cracking control in the bridge deck.

Serviceability Analysis of Flexural Reinforced Concrete Members / Lenkiamųjų Gelžbetoninių Elementų Tinkamumo Analizė

“…The latter represent the global response of structure with smeared out local effects such as the cracking, slippage and degradation of bond stresses. Numerous studies have shown that bond-stresses degrade with an increase in load (Torres et al 2004;Kaklauskas et al 2009Kaklauskas et al , 2011aWu, Gilbert 2009;Gribniak et al 2010;Kala et al 2010;Ng et al 2010;Zanuy 2010;Ho, Peng 2011). This also can be observed from the moment-curvature diagrams shown in Fig.…”

Stochastic Tension‐Stiffening Approach for the Solution of Serviceability Problems in Reinforced Concrete: Constitutive Modeling

“…The application of the stochastic modeling procedure is shown, using the results of two RC ties tested by R. Kupliauskas and reported in Gribniak et al. (). The tests included shrinkage recordings.…”

Design of FRP Reinforced Concrete Beams for Serviceability Requirements

“…Adequate account of the serviceability behavior and the parameters involved in the post-cracking behavior is of major importance for the design of RC structures (Bischoff 2007;Baena et al 2011;Gribniak et al 2010;Kaklauskas et al 2012). Due to the mechanical properties of FRP materials, the Serviceability Limit States (SLS) may govern the design of FRP RC elements (ISIS Canada 2001;Matthys, Taerwe 2000;Nanni 2003;Saikia et al 2007;Rafi, Nadjai 2009).…”