Improved structure of beam chord structure

The utility model discloses an improved structure of a beam chord structure. The improved structure comprises an upper chord, a lower chord and a plurality of middle supporting rods, wherein the plurality of middle supporting rods are arranged between the upper chord and the lower chord at intervals; the lower chord is a pulled member and is formed by sequentially hinging a plurality of high-strength pull rods; and the two ends of the lower chord are hinged on the upper chord respectively. The lower chord is formed by sequentially hinging the plurality of high-strength pull rods, and the high-strength pull rods are rod pieces made of steel, so that the rigidity is relatively high and the tensile strength is relatively great, and furthermore, the rigidity of the improved structure is relatively high.