Experimental and analytical study of elasto-plastic bending behavior of glued-laminated timber beam with plural rib plates on tension side

Abstract

The bending capacity and failure mode of glued-laminated timber beams with plural rib plates on tension sides are investigated. The three types of beams are manufactured and tested. All the beams have same width, depth and span length and also have one rib plate with same dimension on compression side of beam. They have one rib, two ribs and three ribs on tension side, respectively and the sum of thickness of ribs is the same as one rib type. The type of three ribs shows the most highly bending capacity and most moderate failure mode.