Precast floor slabs with an in-situ concrete toping

Verification of the lap joint detailing

→ 1 Reinforcement and failure,test specimen B5

→ 2 Experimental and calculated changes in central deflection, test specimen B5

Two-way precast floor slabs require an overlapping joint of the load carrying reinforcement in both directions. As the overlapping reinforcement lies within the in-situ concrete, special detailing of this layered fabric joint is required according to [1] and [2]. The detailing of the lab joint between precast floor slabs with an in-situ concrete topping is discussed in [3]. Further consideration of precast floor slabs considering the deflection of these slabs are discussed in [5].

Experimental Studies

The aim of the described experimental studies [4] was to question the current restrictions of...

Issue 02/2013 Behavior of biaxially restrained precast slabs in torsion

New findings from tests and numerical simulations

For several decades, precast slabs with cast-in-situ infills have been successfully used in building construction and, more recently, in civil engineering. These precast elements are usually produced...

Issue 08/2017

Lattice girder floor slabs – tested application as a point-supported slab

To verify the load-bearing capacity of buildings or structural components, the planning engineer uses engineering models. These are secured in particular in the case of construction with reinforced...

Issue 02/2016 Experimental investigations, applications and recommendations

“Construction of slab-column-connections in semi-precast slabs”

Semi-precast slabs become more and more important as flat slabs due to the high degree of prefabrication. Their structural design is important in terms of safety owing to the high shear stress and...

Issue 12/2013

Efficiency analysis of precast floor slabs

Precast floor slabs consist of prefabricated floor elements supplemented with statically supporting cast-in-situ concrete. They combine the advantages of cast-in-situ construction with those of...

Issue 02/2017 Lattice girders under cyclic loading

Fatigue of semi-precast slabs

Due to the high efficiency and flexibility of semi-precast slabs with lattice girders compared to in-situ concrete structures, the use of these slab systems increase in building and industrial...