Crossbeam beam channel joist formwork supporting system

The utility model discloses a crossbeam beam channel joist formwork supporting system and belongs to the technical field of construction formwork supporting systems. The crossbeam beam channel joist formwork supporting system comprises a cross beam, a wood adhesive-bonded panel, a square wood beam and a horizontal beam channel which are arranged between a left frame column and a right frame column from top to bottom in turn, wherein the left bottom end and the right bottom end of the horizontal beam channel are respectively provided with a left beam channel inclined strut and a right beam channel inclined strut, and the left frame column and the right frame column are respectively provided with a left horizontal embedded part and a right horizontal embedded part which are supported on the bottom of the horizontal beam channel. The crossbeam beam channel joist formwork supporting system has simple structure and definite force transmission, does not affect bearing of a lower layer floor slab and foundation, does not need reinforcing layer by layer, greatly reduces the load of a bearing frame on the lower portion of an operation layer, and saves turnover materials and building manpower. Simultaneously, the crossbeam beam channel joist formwork supporting system can well prevent construction safety risk and construction period delay due to building heavy-duty high supports and provides guarantee for carrying out projects smoothly.