DISCUSSION ON THE INTERNAL FORCE ADJUSTION IN SEISMIC DESIGN OF MAIN BUILDINGS FOR THERMOELECTRICAL POWER PLANT WITHOUT SHEAR WALL IN TRANSVERSE DIRECTION

The main building for a thermal power plant usually has shear wall only in longitudinal direction,and in 0.2Q_0 adjustment,the design software always adjust section internal forces of all the beams connected with the frame column,which exaggerates section internal forces of lateral beams,causing unnecessary conservativeness.It is proposed twice design calculation should be done for this kind of structure.In the first step,the structure is designed according to frame-shear wall system.Then the second step calculation and design are carried out,in this case the structure is designed being as frame system.It is suggested to use the calculation results from second and first step design for lateral frame beams and the other components respectively.