题名: |
FINITE-ELEMENT MODELING OF RED MAPLE GLUED-LAMINATED T-BEAMS AND BRIDGE BEHAVIOR. |
作者: |
Witmer-RW Jr.; Manbeck-HB; Janowiak-JJ |
关键词: |
TIMBER-BRIDGES; FINITE-ELEMENT-METHOD; MATHEMATICAL-MODELS; STIFFNESS-; PREDICTIONS-; GLUED-LAMINATED-T-BEAMS; GLUED-LAMINATED-BRIDGE-DECKS; DEFLECTION-; LIVE-LOADS |
摘要: |
Finite-element modeling methods are presented using an existing finite-element program to (1) predict the stiffness increase, due to the addition of deck panels, for red maple glued-laminated (glulam) T-beam assemblies relative to beams with no deck panels; and (2) predict the midspan beam deflection for a red maple glulam longitudinal stringer-transverse deck bridge for two loading conditions (one lane loaded and two lanes loaded). The red maple T-beam stiffness increase was determined for T-beams assembled with and without gaps between deck panels. The T-beam stiffness increase was predicted to within 5% for T-beams assembled with gaps between deck panels and to within 3% for T-beams assembled with no gaps between deck panels. Red maple glulam longitudinal stringer-transverse deck bridge maximum midspan beam deflections were predicted to within 6% for one-lane loading and to within 7% for two-lane loading. |
总页数: |
Transportation Research Record. 1997. (1575) pp53-59 (7 Fig., 5 Tab., 6 Ref.) |
报告类型: |
科技报告 |