异形钢管混凝土组合柱最常见的截面形式有三种，即十字形、T形和L形。
There are three kinds of cross-section for special-shaped concrete-filled steel tube compound columns. They are cross-shaped, T-shaped and L-shaped.
但是目前对异形钢管混凝土柱的研究仅限于受力性能的研究，在抗震性能方面的研究比较少见。
However, the current studies on special-shaped concrete-filled steel tubular columns are only limited in the field of mechanical behavior and rare in the field of seismic performance.
普利茅斯钢管生产圆形与异形钢管以及热挤、冷拔特殊型钢，所生产的钢种有碳钢、合金钢、不锈钢与镍基合金钢。
Plymouth Tube COMPANY Description Plymouth Tube is a manufacturer of round and specialty shaped tubing, extruded and cold drawn shapes in Carbon, Alloy, Stainless Steel and Nickel Alloys.
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