7.4.2 Rigid frame under horizontal loads (横向荷载作用下刚架内力简化计算) -Portal Method(算弯矩+剪力) solving the moment and shear distribution at the columns and beams over the frame -Cantilever Method=Footprint(算轴力) solving the axial forces in the columns caused by the overturn moments7.4.2 Rigid frame under horizontal loads （横向荷载作用下刚架内力简化计算） -Portal Method（算弯矩 +剪力） solving the moment and shear distribution at the columns and beams over the frame -Cantilever Method=Footprint（算轴力） solving the axial forces in the columns caused by the overturn moments