Energy Dissipation Mechanism And Ductility Design Of Reinforced Concrete Frame Structure

Reinforced concrete structure is used in multistory and high rise building commonly . Reinforced concrete frame structure is the most popular which is widely used in the areas where earthquakes often happen for its enough intensity, good ductility and massive character. Reinforced concrete frame structure has a good anti-earthquake performance but those that are not designed well may be damaged badly in an earthquake.The nature of structure anti-earthquake performance is ductility, improving the ductility can strengthen the potentiality of anti-earthquake,increase the ability of anti-collapse. With the deformation ofthe plasticity hinge area, ductile structure can effectively absorb and consurne the earthquake energy. At the same time, the deformation can decrease the rigidity of the structure to reduce the reaction caused by the earthquake, that's to say, the deformation can reduce the force from the earthquake, so ductility structure has a stronger anti-earthquake capability. In order to use structure's ability of elastic-plastic deformation to consume the earthquake energy, decrease the reaction in the earthquake, ferroconcrete frame structure should be designed into ductile one.In this paper the energy dissipation mechanism and anti-earthquake ductility design of ferroconcrete frame structure are expounded mainly. Both New Zealand and country standards are adopt in the example. It proves that structure has a strong intensity, good ductility and excellent ability of anti-earthquake using the ductility design based on conective elasticity analyzing method.