Liangding: Liangding is an unlucky term in Feng Shui, which refers to the place where people sit and lie, and the beam is just above their heads. From a professional point of view, if there are beams at home, it is best to deal with them when decorating. In the process of renovation, the owner will decorate the beam, such as installing a fake ceiling, so that the beam can't be seen from the outside, which may minimize the harm. Generally, the cross beam is a prominent part when reinforced concrete is used to strengthen the thickening bearing capacity. In ancient times, beams were generally used to support roofs. Traditionally, beams are regarded as the backbone of a house, and even beams have to be erected, which requires certain ceremonies, such as choosing a day and setting off firecrackers.