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What standard should be adopted for the specification of anchor bolts of steel structure
1. The specification of anchor bolt of steel structure is Q235B. The steel column base bolt cannot be
used for shear, and the shear force is borne by the shear key.
2. It consists of Q + number + qualitygrade symbol + deoxidation method symbol. Its steel grade
is marked with "Q", which represents theyield point of steel. The following numbers represent the
yield point value, and the unit is MPa.
Forexample, Q235 represents the yield point( σ s) 235 MPa carbon structural steel.
② If necessary,symbols indicating quality grade and deoxidation method can be marked after the
steel grade. Thequality grade symbols are a, B, C and D respectively.
Deoxidation method symbol: F representsboiling steel; B represents semi killed steel; Z represents
killed steel; TZ represents special killedsteel, and killed steel can not be marked with symbols, that
is, both Z and TZ can not be marked.For example, q235-af represents class a rimmed steel.
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