Structural Models for Trussed Rafters (Statiske Modeller for Tretakstoler)

摘要

The computer program TRUDE (TRUss DEsign) for design of trussed rafters with nail plate connectors has been used commercially for a couple of years by a number of Norwegian truss manufacturers. The program has been developed at Norsk Treteknisk Institutt and is based on the finite element method. The paper presents a comparison between TRUDE-computed span tables and span tables derived from prototype tests. The paper presents further test results on one full scale truss, and the attempts to reproduce the test results analytically by the use of different structural models. The last part of the paper compares calculated span tables using the different structural models.