多層建筑不等強度混凝土軸心受壓柱承載能力計算
舒?zhèn)髦t
- 摘 要
-
舒?zhèn)髦t
（貴州工學(xué)院土建系 貴陽 550003）[提要] 探討當混凝土強度較高的柱穿過混凝土強度較低的樓層，形成不等強度的夾層柱時，如何計算該柱的靜力承載能力。
[關(guān)鍵詞] 夾層柱 混凝土表面強度 約束 應(yīng)力擴散Experiment and analysis showed that the capacity of concrete columns with intervening floor of lower strength depends on the load spreading to the surrounding floor, the horjzontal reinforcement restraint to the column - floor junction as well as on the floor concrete strength and the column restrict to the junction. The procedure's predicting values are better agreement with the test data than that of the current ACI Code specification and of Camble's formula in Joumal of ASCE.
Keywords: column- floor junction; concret strength; restriction; experiment; analysis
