Punching shear capacity is a key factor for governing the collapsed form of slabs. This fragile failure that occurs at the slab-column connection is called punching shear failure and has been of concern for the engineers. The most common practice in evaluating the punching strength of the concrete slabs is to use the empirical expressions available in different building design codes. The estima...

This paper deals with the modeling of punching shear failure in reinforced concrete slabs using nonlinear finite element analysis. The 3D finite element analyses (FEA) were performed with the appropriate modeling of element size and mesh, and the constitutive modeling of concrete. The FE numerical models are validated by comparing with the experimental results obtained from tested specimens and...

The punching and post-punching shear behaviours of reinforced concrete (RC) flat plate structures are often studied by using a representative slab–column connection isolated from the parent structure. In this study, set numerical modelling techniques is established to create competent three-dimensional non-linear model simulate RC connections without reinforcement, through use which failure fea...

Flat slabs in contemporary buildings are most commonly supported by rectangular cross-section columns. Research of columns for punching is rather narrow. The purpose this work was the experimental research and adjustment their design method. Reinforced concrete 6 cm thickness without transverse reinforcement were used as testing specimens. During tests load on slab transferred using stamps. Sid...

Punching shear failure in thin slabs under concentrated loads can cause stresses near columns. The use of steel fiber is a practical way to improve slab-column connection's punching strength and deformation capacity. In this study, the capacity behavior fiber-reinforced concrete flat are examined force. Ten small-scale were tested, eight which had two without. Two parameters studied paper, volu...

Flat slab concrete buildings are widely found in infrastructure such as office and residential buildings or industrial facilities. The susceptibility of progressive collapse of such structures due to accidental loads is highly dependent on the structural performance of the slab-column connections. This paper presents a framework for a simplified reliability analysis and derivation of safety fac...

Punching shear is the most common failure mechanism of slabs that are supported directly on columns. The slab–column connection always vulnerable to critical punching shear; thus, it necessary investigate effect various parameters behavior flat slabs. This work presents an experimental study evaluate level prestressing force and layout strands in terms maximum load, deflection, stiffness, ducti...