Prestressing and Loading Tests on Full-Scale Roof Truss of Shanghai Pudong International Airport Terminal

Publisher Summary This chapter presents the results of the tests undertaken on the full-scale truss composed of arch-beam and cable used in the roof structure of Shanghai Pudong International Airport Terminal. These tests were undertaken in the stages of prestressing and loading conditions respectively. The terminal buildings are composed of four successive function areas called R1, R2, R3, and R4 respectively. Each roof structure is a large span steel-truss system with no lateral bracing at all. The steel truss is composed of arch-beam and prestressing cable called cable-beam. The prestressing process has two stages: buildup of the integrity structural rigidity and accretion of the integrity structural rigidity. A total number of one hundred and eleven strain gauges and three tensometers were distributed on the roof truss and anchor rod, and eleven displacement transducers were used to measure the vertical deflections of the truss and the horizontal displacements of the supports. The tension-only element is adopted for the end segments of the cable, where a couple of forces are added to simulate the tension from the anchor device.