复杂体型高层建筑结构稳定性验算
发布时间：2019-05-27 04:20
【摘要】：高烈度区结构刚度一般由水平荷载控制,而在低烈度区则往往由整体稳定决定。结构侧向刚度和重力荷载是影响结构整体稳定和P-Δ效应的主要因素,《高层建筑混凝土结构技术规程》(JGJ 3—2010)采用刚重比作为控制指标。基于结构楼层荷载沿竖向均匀分布,规范给出了刚重比的限值指标。对于体型复杂的高层建筑,不同建筑之间质量沿高度分布差异很大,采用同样的控制参数,结构实际稳定性无法保证。根据实际体型和水平荷载分布情况,引入楼层竖向荷载分布系数β,通过控制结构在风荷载和地震作用下的P-Δ效应,计算了结构合理刚重比,对规范指标进行了修正;同时根据实际荷载分布提出了任意水平荷载分布下的等效侧向刚度的计算公式。
[Abstract]:The structural stiffness in high intensity zone is generally controlled by horizontal load, while in low intensity area, it is often determined by overall stability. The lateral stiffness and gravity load of the structure are the main factors affecting the overall stability and P-螖 effect of the structure. The rigid weight ratio is used as the control index in the Technical Specification for High-rise Building concrete structures (JGJ 3 鈮，
本文编号：2485897
[Abstract]:The structural stiffness in high intensity zone is generally controlled by horizontal load, while in low intensity area, it is often determined by overall stability. The lateral stiffness and gravity load of the structure are the main factors affecting the overall stability and P-螖 effect of the structure. The rigid weight ratio is used as the control index in the Technical Specification for High-rise Building concrete structures (JGJ 3 鈮，
本文编号：2485897
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