The Earthquake Damage Analysis of RC Frame Structure with Strong Beam and Weak Column

The dinning room of Xuankou middle school in Wenchuan county is used as a simplified model in this paper.According to the code for seismic design of buildings(GB50011-2001),the calculation result based on the simplified model is compared to the earthquake damage.The comparison shows that the increasing of the beam stiffness caused by the stiffness of the slab is considered when the bending moment of two ends of the beam is calculated,and the beam reinforcement is calculated according to this moment.In the same time,the increasing of the bearing capacity of the beam caused by the reinforcement in the slab is ignored.The ignoring brings the RC frame structure withstrong beam and weak columnto the areas with low seismic fortification intensity.