WOOD-METAL CONSTRUCTION MEMBER Russian patent published in 1998 - IPC

FIELD: construction engineering. SUBSTANCE: this is used as separate construction component of building framework or as part of other construction units such as panels, arches, etc. Wood-metal construction member has wooden cover plates, and installed between them is metal part of double-tee cross-section with flanges and web with fastening parts. Flanges of double-tee metal part are made in extension zone in the form of horizontal thickenings secured on web, and in zone of compression they are made in the form of strip-like cover plates which are also secured on web. Height of metal part is less than height of wooden cover plates, and portions of metal part are enclosed and compressed at sides by aforesaid cover plates with the help of fastening parts which are located horizontally and inserted through wooden cover plates and metal part. Wooden cover plates are subjected to treatment by preservative agent and antipyrene. Metal part is protected by anticorrosive coating. Joints of wooden cover plates between each other and with metal part are sealed with sealing compound. Fastening parts can be made in the form of hollow rivets and their ends are beaded and rubbed flush with external surface of wooden cover plates and protected with sealing compound. Web of metal part can be provided with vertical protrusions of enclosed profile which extend beyond plane of web. Vertical recesses can be made in external side surfaces of wooden members. In addition, horizontal thickenings on web of metal part can be made in the form of angle or in the form of rolled steel articles of triangular cross-section or in the form of rolled steel articles of triangular cross-section with curvilinear concave hypotenuse. EFFECT: higher efficiency. 5 cl, 4 dwg