鋼板挿入集成材梁のせん断補正係数の推定方法についての検討

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  • コウバン ソウニュウ シュウセイザイリョウ ノ センダンホセイ ケイスウ ノ スイテイ ホウホウ ニ ツイテ ノ ケントウ
  • Consideration about estimation methods of shear coefficient for steel-plate-inserted glulam beams

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Abstract

Shear stiffness of glulam beams is very small compared with it's bending stiffness. While hybridization of glulam beams by inserted steel plates improve the bending stiffness, it does not so improve the shear stiffness. As a result ratio of shear deformation to bending deformation is greater in the steel-plate-inserted glulam beams than even in glulam-only beams. Therefore it is very important to estimate shear coefficient for the steel-plate-inserted glulam beams. In this study we analytically, numerically and experimentally estimate the shear coefficient of the aluminum-plate-inserted acrylic beams instead of steel-plate-inserted glulam beams, since we can easily know the shear modulus for the isotropic materials aluminum and acrylic. We discuss the validity and accuracy of each estimation method.

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