4-WAY TENON JOINT FRAME OF FREE-FORM GRID SHELL STRUCTURES

摘要

The present invention provides a four-way tenon joint frame of free-form grid shell structures to build a free-form grid shell structures which is simple and easy to be manufactured, and is stable due to the reinforcement of a joint. According to the preferred embodiment of the present invention, the invention includes: a four-way tenon center member having a center core having a predetermined length in a rectangular cross section, delta wings jointed on the outside surface edges of the center core respectively, to make four division angles with the same size around the center core, obstacle panels located between delta wings adjacent to each other to be arranged on the center of the outside surfaces of the center core, an upper bridge joint having a bridge insertion hole on the center thereof and jointed to the end portion of the one side of the center core, and bridge fastening nuts jointed to the inner surface of the bridge connecting panel; and a pipe-shaped connecting member having grooves for obstacle whereby the obstacle panels are inserted on both ends thereof.