Does the elevator of Hefei low-rise building need to be forced to land?

No need. According to China's national standard "Elevator Safety Code", elevators in residential areas below 6 floors of low-rise buildings should stop running and open elevator doors in case of emergency such as fire, but there is no need to make a forced landing. If it is an elevator in a public or commercial building, it should be handled in accordance with the building fire prevention regulations.