Underground parking structures often consist of flat slabs connected by columns, for which punching shear is often the most critical design criterion. In fire conditions, the punching load can increase due to restraint of the thermal curvature of the slab or due to the expansion of the columns....
Shear Reinforcement SteelUltra High Performance ConcreteSteel FiberBEHAVIORExtensive studies have focussed on the issue of the failure of punching shear in flat slabs and ways to strengthen it internally, externally and the importance of this structure (flat slab), and the danger of punching shear ...
1) punching shear slab 冲切板1. The deflection,ductility,energy absorption and bearing capacity o f punching shear slabs were investig ated and analyzed with the formula for calcul ating punching shear strength of sla bs provided. 研究结果表明,在高强混凝土板柱体系中掺入钢纤维不仅可减小冲切板在...
Punching is a critical design case for reinforced concrete flat slabs but the provisions for punching shear design and detailing of the shear reinforcement differ considerably among the various European and American design codes. Therefore the thickness of the slab or the amount or distribution of sh...
Punching of flat slab with shear reinforcement and reentrant corner columnAlbuquerque, Elaine Jaricuna Pereira de
In RF-PUNCH Pro, enlarged column heads can be arranged at point-supported punching shear points, thus increasing the shear force resistance of a reinforced concrete floor. In the following article, we will show the punching shear design with the optional
Phase-1 was concerned in developing a typical FEM model for PT-UHPC flat slab considering concrete compressive strength (Fcu), strands layout (in terms of the average pre-stressing stress in the punching zone) (Fps), shear reinforcement capacity (Ash.Fy) and the aspect ratio of the column ...
Punching Shear Behavior of Flat Slabs Strengthened with Fiber Reinforced Polymer Laminates The present work reports the test results of seven full-scale reinforced concrete slab-column edge connections strengthened against punching shear using di... E El-Salakawy,K Soudki,MA Polak - 《Journal of Co...
In addition, although the specimens were both small-scale and full-scale, specimen size effects on the evaluation of the punching shear strength were not considered. Thus, the proposed models might not be applicable to real (full-scale) flat slab systems. This issue can be resolved through ...
One of the major problems of flat slab is the punching shear failure of slab-column connection. This form of failure must be avoided. Fourteen slab-column connections are tested to failure and categorized in two phases. The first “Phase I” consisted of testing ten interior square slabs axial...