.5.1 Seismic action (work) .5.1.1 Shear-weight ratio and lateral displacement checking calculation- According to Clause 5.2.5 and Clause 5.5.1 of Code for Seismic Design of Buildings GB50011-2010 (official version), the horizontal seismic shear force of any floor of the structure shall meet the following requirements during seismic checking: > where: Vaki the storey shear force of the i floor corresponding to the characteristic value of horizontal seismic action; 1-shear coefficient, take 0.006: G;-representative value of gravity load of layer j. For checking calculation of seismic deformation under the action of frequent earthquakes, the maximum elastic story drift in the floor shall meet the requirements of the following formula: Au. where: Vaki the storey shear force of the i floor corresponding to the characteristic value of horizontal seismic action; 1-shear coefficient, take 0.006: G;-representative value of gravity load of layer j. For checking calculation of seismic deformation under the action of frequent earthquakes, the maximum elastic story drift in the floor shall meet the requirements of the following formula: Au.