Influence Wing Wall Reinforcement Ratio Of Wing Wall Reinforcement Column Performance Analysis

In the life cycle of the building structure,the structure is inevitably subject to a variety of factors(including load factors and non-load factors),resulting in reduced safety of the building,for a variety of reinforcement methods have been born to meet people residential building comfort,practicality,safety and other requirements.Reinforced concrete structure is one of the most widely used structure,reinforced concrete structure reinforcement accounts for more than 50%of the industry.Methods for reinforcing concrete structures are increasing section reinforcement method,paste method of steel reinforcement,concrete reinforcement method substitution,outsourcing steel reinforcement method,carbon fiber reinforcement method,etc.,reinforced concrete wing wall as a new method,the current theory is not yet perfect.This article is based on concrete wing wall on reinforced columns,in-depth research and analysis of vertical bearing capacity of the reinforcing member were calculated and analyzed by numerical simulation wing wall reinforcement ratio of wing wall reinforcement columns for influence analysis.The main work of this paper is divided into three aspects:One is to develop wing wall reinforcement columns under vertical load bearing capacity formula,and demonstrate its reasonableness;The two parts are:the wall and the wall.The two parts are:the wall and the frame.The influence of reinforcement ratio on the bearing capacity,energy dissipation capacity,stiffness and ductility of the columns is analyzed.The effect of ABAQUS value on the performance of the reinforced concrete column is analyzed in third aspects:the two kinds of reinforcement ratio,the hysteretic curve and skeleton curve,the effect of different parameters,the energy dissipation capacity,stiffness and ductility.After inquiry,we can get the following conclusions:1.In this paper,the theory proposed vertical bearing capacity of normal section wing wall reinforcement column formula:N?0.9?[fcAc+fy'As'+0.85(?fwAw+?fyw'Asw')]2.The wing wall reinforcement columns mechanisms:one wing walls and columns as a whole have to bear vertical loads,reducing the axial compression ratio member;horizontal load after the structure into the elastoplastic stage,the wing walls in earthquake first crack at yield,absorb seismic energy to achieve the two seismic fortification lines,wing walls and columns together bending damage;increase rear wing wall on the one hand increases the original column section,increasing the moment of inertia,in the earthquake,reducing the height of the column cross-section of the main tensile stress;on the other hand increase the bending ability of the wing wall member,increasing the rigidity of components,reducing the deformability.3.Forces on a wing wall reinforcement ratio by force status under the wing wall reinforcement columns for analysis:With the improvement of wing wall reinforcement ratio,the bearing capacity components,energy dissipation capacity increase,lower ductility,stiffness degradation mitigation;single flank wall reinforcement effect was significantly lower than the double flank wall reinforcement effect;reinforcement in the form of wing walls of their little effect.4.Secondary for influence wing wall reinforcement ratio under stress condition of the wing wall reinforcement Columns:With the improvement of wing wall reinforcement ratio,the bearing capacity components,energy dissipation capacity increase,stiffness degradation mitigation;secondary load capacity,energy consumption was significantly lower than the first force;with the increase of wing wall reinforcement ratio,wing wall reinforcement member symmetrical improve ductility,ductility reduce asymmetric reinforcement.5.Reasonable wing wall reinforcement ratio located about 0.2%to 4%.