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我参加了本地区的多次工程检查,发现少数施工人员对柱和梁钢筋的混凝土保护层认识模糊,常有以下两种情形。1.柱和粱受力钢筋的混凝土保护层厚度与箍筋的混凝土保护层厚度混淆,导致箍筋内净尺寸偏小,受力钢筋的混凝土保护层厚度增大。2.片面理解保护层的概念,笼统认为柱和梁受力钢筋的混凝土保护层厚度为25mm,忽视对箍筋的混凝土保护层厚度的要求,以致引起箍筋混凝土保护层厚度
I participated in many engineering inspections in the region and found that a small number of construction workers have a vague understanding of the concrete protection of columns and beams. There are often two situations. 1. The thickness of the concrete protective layer of column and concrete reinforcement steel reinforced concrete is confused with the thickness of the concrete protective layer of the stirrup, resulting in a small net size of the stirrup and an increase in the thickness of the concrete protective layer of the stressed steel reinforcement. 2. One-sided understanding of the concept of the protective layer, generally considered that the thickness of the concrete protective layer of columns and beams subjected to force reinforcement is 25mm, neglecting the requirement for the thickness of the concrete protection layer of the stirrup, resulting in the thickness of the protective layer of the stirrup concrete.