無腹筋環(huán)形截面鋼筋混凝土梁受剪承載力的解析解
龍炳煌 蔣大驊
- 摘 要
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龍炳煌 蔣大驊
(武漢工業(yè)大學 430070)[提要] 提出了環(huán)形截面梁在剪壓破壞條件下的力學模式,根據(jù)平衡條件和混凝土復合應力條件下的強度準則,建立了無腹筋梁的受剪承載力計算公式,并將計算結果與試驗結果作了比較。
[關鍵詞] 無腹筋梁 環(huán)形截面梁 受剪承載力A theoretical model is proposed for tubular beam without web reinforcement under shear failure. According to the conditions of equilibrium and a failure criterion, a formula is proposed for the shear strength. And the comparison is made between the ultimate strength observed in the experiments and those calculated by using various proposed formulae.
Keywords: without web reinforcement; tubular beam;shear strength