Time-dependent behaviour of timber lightweight concrete composite floors

FEM models of composite timber-lightweight concrete floor systems

Paper presents the main principals in designing wood-lightweight concrete composite floor structures using FEM models. All design-related analyses are performed by means of the FEA COSMOS/M program. Paper emphasises some important details in FEM model design (how to choose appropriate finite elements for different types of materials, how to connect concrete slab and timber beams to work togethe...

Structural Tests of Concrete Composite - Cross - Laminated Timber Floors Final Report

Experimental tests of a composite concrete-cross-laminated timber (CLT) floor system were conducted. The floor system was constructed with 5-ply CLT panels (6.75 in. thick) made composite with a 2.25 in. thick reinforced concrete topping slab. Four series of tests were performed using different specimen configurations and laboratory testing methods. Tests included: (1) Comparative one-way bendi...

Behaviour of a Timber-Concrete Composite Beam with Glued Connection at Strength Limit State

The paper reports the results of a collapse test performed on a 6 m span timber-concrete composite beam with glued re-bar connection. The beam was first ramp loaded to failure, then some push-out tests were performed on specimens cut from the end of the beam in order to fully characterise the connection. During the tests all relevant quantities such as deflections, slips and strains were monito...

Behavior of Composite Timber-Concrete Beam with CFRP Reinforcement

Nonlinear Time-Dependent Behavior of Composite Steel-Concrete Beams

This paper presents a mixed finite element model for the nonlinear time-dependant analysis of composite beams with partial shear connection. The key idea is to consider, as a first approach, a viscoelastic/plastic model for the concrete slab in order to simulate the interaction between the time effects of concrete, such as creep and shrinkage, and the concrete cracking. Creep is taken into acco...