Research On Punching Shear Resistance Of Reinforced Concrete Slab Column Connection Structure And Numerical Analysis

In the contemporary civil engineering construction, the construction safety is more and more concerned, and the two main factors that affect the construction safety are the construction quality control and the optimization of the structure design. Structural design optimization occupies the dominant position, he directly affects the stability of the structure and structural safety. In the design of the structure, the structure of the housing, which is composed of the floor and the column, is generally called the slab column structure. This structure is generally more applicable to the multi-storey plant, warehouse, there is a flexible space, simple layout, at the same time it can also effectively reduce the height of the building. This structure has undisputable advantages but also has inevitable shortcomings, after a long-term research and a large number of experimental data found that the structure in the region around the column are prone to punching shear failure, the damage is extremely easy to cause the collapse of the whole structure. The damage of punching and cutting is very huge, and it is a kind of brittle failure. The most easily damaged place of plate column structure is its node, so it is very important to study its ability to resist damage. The main contents of this paper:(1)Node of reinforced concrete slab column structure in addition to to transfecaused by horizontal load unbalanced moment and transfer the passing of vertical shear and their structures are very prone to an immeasurable amount of brittle failure and need to study the damage of failure mechanism and principle(2)Reinforced concrete slab column structure node at an anti punching failure, from the node at the worthy of the gluten, the improved node punching detailed analysis.Reinforced concrete slab column joints of reinforced and node failure improved way, in the actual engineering we must through these improved methods to avoid reinforced concrete structure of punching shear failure and the slab column structure can be more and more effective and safe is applied in practical engineering the construction process.(3)Through the analysis of the experimental data of several universities, factors that influence structure of punching shear strength(4)Using the finite element software ANSYS simulation of reinforced concrete from by the load until the destruction of the whole process, the analysis of crack formation and failure mechanism, determine the failure load of the structure, and provide a reliable basis for the design of the structure. ANSYS for reinforced concrete analysis of the selected objects are SOLID65 and LINK8. This paper introduces the use of SOLID65 to simulate the crack of reinforced concrete slab column structure Punching failure mechanism of plate with finite element simulation.