COMPRESSION STRENGTH PROPERTIES FOR 2 HARDWOOD GLULAM MATERIALS

This technical note presents test results on the compressive strength of two hardwood glue-laminated [glulam) materials. Test materials were fabricated according to the criteria of the American Institute of Tim ber Construction (AITC) 119-85 for a Combination A glulam timber. Allo wable compression parallel-to-grain design values are presented for bo th northern red oak and red maple glulam timbers constructed according to AITC 119 specifications for visually sorted lumber qualities. The compressive design strength for northern red oak was computed to equal 2,750 psi (19.0 MPa). A nearly identical compressive design limit val ue of 2,700 psi (18.7 MPa) was obtained for red maple. The results ind icate that high quality compression members are possible from either s pecies.