钢筋的锚固是钢筋混凝土结构的主要构造要求之一,它影响到结构的使用安全和使用寿命。钢筋的锚固长度是指钢筋进入支座混凝土核心区的长度值。其长度与混凝土的强度等级、受力钢筋的外观形状、构件的受力状态和锚固形式等有关,其长度通常用受力钢筋的直径倍数来表示。 Reinforcing steel anchoring is one of the main structural requirements of reinforced concrete structure, which affects the safety of the structure and service life. The anchorage length of rebar refers to the length of rebar entering the core area of ​​the bearing block. Its length is related to the strength grade of concrete, the appearance of the reinforced bar, the force state of the component and the form of the anchorage. The length of the bar is usually expressed as the multiple of the diameter of the reinforced bar.