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工业与民用建筑中,钢筋混凝土柱或钢柱已为人们所熟悉。但钢管混凝土柱你就觉得陌生,这是六十年代才出现的一种新型结构材料。它是将混凝土填入钢管内振捣密实,使钢管和混凝土在外荷作用下能共同工作,主要用作工业和民用建筑的承重柱。一、钢管混凝土的特点1.承载力高试验证明,钢管混凝土的承载力要大于相同尺寸空钢管和核心混凝土分别承受外力之和。如直径106毫米,壁厚3毫米,长278毫米的钢管,内填400号混凝土,对它进行试压,
In industrial and civil buildings, reinforced concrete columns or steel columns are already familiar. However, you are unfamiliar with concrete-filled steel tube columns. This is a new structural material that only appeared in the 1960s. It fills the concrete into the steel tube and vibrates densely, making the steel tube and the concrete work together under the action of external load. It is mainly used as a bearing column for industrial and civil buildings. First, the characteristics of concrete filled steel tube 1. High bearing capacity test shows that the bearing capacity of concrete filled steel tube is greater than the sum of the external force of the same size of hollow steel tube and core concrete. For example, a steel pipe with a diameter of 106 mm, a wall thickness of 3 mm, and a length of 278 mm is filled with concrete No. 400 and tested for pressure.