The six functional indexes are: sliding friction coefficient, ball rebound rate, rolling load, impact absorption rate, standard vertical deformation and relative vertical deformation rate. The key to evaluate whether the sports wood floor is qualified or not and the overall structure and surface performance is to look at the above six functional indicators.
Three characteristics of wooden sports floor in gymnasium
① sports performance
Sports function means that the wooden floor used in the gym should meet the technical requirements of various sports and the rules of indoor ball games as much as possible, and use the floor for sports competition or training, such as the take-off action and ball rebound of ball games such as basketball. The comparison coefficient between the rebound of the ball on the sports floor and the rebound on the concrete floor should be ≥90%.
② Protection function
Protective function is a necessary feature of gym wood floor. When athletes are exercising, they can reduce the injury when they fall, or the wooden floor can reduce the load generated by sports equipment, which can protect the athletes and the floor. Sometimes it is necessary to add synthetic bedding, such as wooden floors for gymnasiums in badminton, volleyball, table tennis and judo. This requirement includes: avoiding the danger of moving sports equipment acting on the wooden floor; Avoid athletes consuming too much energy in sports and causing sports fatigue.
③ technical performance
Technical function is also a necessary feature of gym wood floor. The bearing capacity, firmness and service life of the sports floor must meet the requirements of competition and training. For example, when the movable basketball stand and related sports facilities move on the sports floor, the surface layer and structure of the floor should not be damaged, and the floor should maintain its sports function, protection function and service performance for a long time, which is also the rolling load standard and concept described in the d in standard.