繰返し載荷実験と最大耐力評価法 : 浅い埋込み柱脚の弾塑性挙動と保有性能 その1

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タイトル別名
  • CYCLIC LOADING TEST AND STRENGTH EVALUATION : Hysteretic behavior and strength capacity of shallow-embedded steel column bases Part 1
  • クリカエシ サイカ ジッケン ト サイダイ タイリョク ヒョウカホウ アサイ ウメコミ チュウキャク ノ ダンソセイ キョドウ ト ホユウ セイノウ ソノ 1

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抄録

A standard base plate connection is commonly adopted for column bases of low-rise steel structures. In most practical design, the column bases are likely covered by shallow concrete slab to hide the bolted base plate and level the slab. There is no guideline, that reflects the influences of the slab on the seismic performance of the column base. Cyclic loading tests are conducted, and the effects of thickness and shape of slab are investigated with reference to the standard base plate connection. The tests show that the covering concrete slab contributes to both the initial stiffness and ultimate strength. The plastic theory is applied to express the punching shear failure and the compressive failure in the slab, and the ultimate strength is estimated. Reasonable correlation with the corresponding test results is notable.

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