Yes, I haven't. The steps at the entrance are too narrow. As long as the design structure is not affected, they can be widened and the user's walking can be improved. No problem, mainly including drilling, planting steel bars and adding inclined beams. If it is a reinforced concrete step, it can be widened by planting steel bars on the side and repaving cement. Steps generally refer to buildings built with bricks, stones and concrete for people to get up and down, mostly in front of the gate or on the ramp. The calculation of engineering quantity generally involves the calculation of step engineering quantity.