FIRE RESISTIVE COVERING STRUCTURE, FIRE RESISTIVE COVERING MATERIAL AND CONSTRUCTION METHOD OF FIRE RESISTIVE COVERING STRUCTURE

• Main Authors: SHIMIZU HARUHIRO, KONISHI TAKEO, YAMAWAKI SHINPEI, HIROHATA TOSHIAKI, ABE TOSHIYUKI
• Format: Patent
• Language: English; Japanese
• Published: 12.12.2019
• Subjects: BUILDING; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; ROOFS; WALLS, e.g. PARTITIONS

To prevent a fire resistive covering material from floating up from a steel frame consisting of a skeleton column or falling down due to its self weight.SOLUTION: A fire resistive covering structure (1) comprises: a steel frame (10) consisting of a skeleton column; and a pair of fire resistive covering materials (20) for covering the steel frame (10). The steel frame (10) comprises: a pair of flanges (11); a web (12) for coupling the pair of flanges (11); and a projection (13) arranged on both sides of the web (12) and extending in parallel with the pair of flanges (11). On each of the pair of fire resistive covering materials (20), notch parts (21) and (22) in three rows for receiving the pair of flanges (11) of the steel frame (10) and the projection (13) are formed when the pair of fire resistive covering materials (20) covers the steel frame (10) from both sides.SELECTED DRAWING: Figure 1 【課題】本発明は、躯体柱を構成する鉄骨から耐火被覆材が浮き上がったり、自重によりずり下がったりすることを防止することを目的とする。【解決手段】本発明は、耐火建築物の躯体柱を構成する鉄骨（１０）と、鉄骨（１０）を被覆する一対の耐火被覆材（２０）とを備えた耐火被覆構造（１）であって、鉄骨（１０）は、一対のフランジ（１１）と、一対のフランジ（１１）を連結するウエブ（１２）と、ウエブ（１２）の両面に設けられ、一対のフランジ（１１）と平行に延在する突条（１３）とを備える。一対の耐火被覆材（２０）の各々には、一対の耐火被覆材（２０）が鉄骨（１０）を両側から被覆したときに、鉄骨（１０）の一対のフランジ（１１）及び突条（１３）をそれぞれ受け入れる３列の切込部（２１）及び（２２）が形成されている。【選択図】図１