Abstract:Take a 20m hollow plate beam as an example, the static load experiment was conducted, and the experimental data about overall displacement, cross-section strain and the crack were analyzed carefully. The results show that: 1) its stiffness satisfied the design code. 2) the actual measured strain take on linear variety along the section height, which match the plane cross-section assumption; and the stress experiment coefficient is 0.562, which satisfied the testing specification.3)there is no crack occur under the last experiment load case, which show that the hollow plate beam satisfied the design code.