This paper is the continuity of the preceding paper written by the author in Transactions of the Architectural Institute of Japan, No.126, in August 1966. Two specimens having the same members and size for the welded steel trusses, adopted the T-structural shape for their chord members, the steel tube for their web members and the eccentric panel points to make the construction of their panel points as simple as possible, are tested to find their strength and rigidity under the vertical loading on their upper chord members, and the results of these tests are compared with the theoretical analysis for the welded truss with eccentric panel points. The results are as follows. 1) In the tests both specimens of the welded steel truss with eccentric panel points showed nearly the same elastic and plastic behaviors respectively. The elastic behaviors were found to satisfy most of the results of the theoretical analysis and the plastic behaviors were qualitatively explained by using the simple plastic theory. 2) The elastic behaviors at the eccentric panel points acted on no shearing forces, in these specimens, were found to nearly coincide with the theoretical analysis, while that at the eccentric panel points acted on shearing forces did not coincide with the theoretical analysis. And the damage to these panel points could not be observed until the breaking loads of the specimens. 3) The maximum loads (10.92tons and 11.82tons) of these specimens were about 3.54 (3.84) times their allowable load 3.08tons in the short times used in the short times used in the structural design, and were about 5.14 (5.58) times the allowable load 2.12tons of the truss, which has the non-eccentric panel points constructed of pin joints, the upper chord member estimated for the continuous beam supported by the panel points and the same members and size as the specimens.
View full abstract