MATERIAL FOR REDUCING FLOOR IMPACT NOISE USING TENSILE ELASTIC PROPERTIES BY SHEAR DEFORMATION AND FLOOR STRUCTURE FOR REDUCING FLOOR IMPACT NOISE USING THE SAME

摘要

PURPOSE: A buffer material and structure decreasing floor impact sound using tensile modules due to shear deformation are provided to improve application property and economical efficiency and to making a damping panel and horizontal panel using inexpensive material. CONSTITUTION: A buffer material decreasing floor impact sound using tensile modules due to shear deformation comprises an upper projection(111), an upper deformation space part(130), a lower projection(112), a lower deformation space part(130'), a damping panel(110) and a horizontal panel(120). The cross section of the upper projection is trapezoidal shape. The upper projection is extended toward the longitudinal direction and is separated from the upper side at a regular interval. The upper deformation space part is formed between the upper projection and upper projection. The lower deformation space part is formed between the lower projection and lower projection. The damping panel is composed of a buffer unit(113) formed between the upper projection and lower projection.