Big cantilever bent cap steel truss construction platform

A big cantilever bent cap steel truss construction platform comprises a tie beam arranged right under a big cantilever bent cap, and a platform support supported under the tie beam, wherein the platform support is formed by orderly connecting four upright bases, four uprights and a steel truss above the four uprights together from bottom to up; the lower surface of each upright base is fixed with a pier stud foundation platform under the big cantilever bent cap; the upright bases are arranged around a pair of pier studs under the big cantilever bent cap, two of the bases are arranged at the two sides of one pier stud, a tie rod is connected between the two bases, and the other two bases are arranged on the two sides of the other pier stud; diagonal bridgings are connected among the uprights; and the width of the steel truss is greater than the spacing between the uprights on the two sides of one pier stud, so that the steel truss can be placed above the tops of the four uprights. The big cantilever bent cap steel truss construction platform solves the technical problems in the existing full space support method that the soft soil foundation treatment is required by a full framing method, the support erecting workload is high, the construction period is long, raw materials are wasted and the safety can not be guaranteed.