螺紋鋼筋長度大家知道是多少嗎？說到這個螺紋鋼筋的長度，她跟盤螺還不一樣，這可不是說你想多長就有多長的，他也是有規定的。
Do you know the length of the rebar? Speaking of the length of the rebar, she is not the same as the screw. This does not mean that you can have as long as you want. He also has rules.
螺紋鋼筋長度
Length of Threaded Reinforcement Bar
鋼筋通常按定尺長度交貨，具體交貨長度應在合同中注明，螺紋鋼筋長度上市場流通多的是12米和9米。
Steel bars are usually delivered according to fixed length. The specific length of delivery should be specified in the contract. The length of threaded steel bars circulates in the market up to 12 meters and 9 meters.
鋼筋可以盤卷交貨，每盤應是一條鋼筋，即只有兩個鋼筋頭，允許每批有5%的盤數（不足兩盤時可有兩盤）由兩條鋼筋組成。其盤重和盤徑由供需雙方協商確定。
Steel bars can be delivered in coils, each plate should be a steel bar, that is, only two steel head, allowing 5% of the number of plates per batch (less than two plates can be made up of two steel bars). Its weight and diameter shall be determined through consultation between the supplier and the demander.
長度允許偏差：鋼筋按定尺交貨時的長度允許偏差為0~+50mm，允許按雙方協議或合同交貨。
Length allowable deviation: The allowable deviation of the length of reinforcing steel bar is 0 ~+50mm when it is delivered according to the fixed length, and the allowable deviation is 0 ~+50mm when the reinforcing steel bar is delivered according to the agreement or contract between the two parties.
彎曲度和端部：鋼筋端部應剪切正直，局部變形應補影響使用。
Bending degree and end: The end of reinforcing bar should be sheared and straight, and the local deformation should compensate for the influence of use.
重量及允許偏差：鋼筋可按理論重量交貨，也可按實際重量交貨。按理論重量交貨時，理論重量為0.00617*d*d*L，其中d為鋼筋的直徑，L為鋼筋的長度。
Weight and allowable deviation: steel bars can be delivered according to theoretical weight or actual weight. When delivered by theoretical weight, the theoretical weight is 0.00617*d*d*L, where D is the diameter of steel bar and L is the length of steel bar.
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