【Daily Question】Question from Issue 20150903
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. When designing stirrups made of HPB325 grade steel for which no specific requirements are given, the diameter of the arc formed by the hook should be greater than the diameter of the stressed steel bar, and it should also be at least ( ) times the diameter of the stirrup. The length of the straight part of the hook should be at least ( ) times the diameter of the stirrup for ordinary structures; for structures with seismic requirements, it should be at least ( ) times the diameter of the stirrup. Answer: 2.5 times 5 times 10 times
First blank (2.5 times), second blank (5 times), third blank (10 times).
When designing stirrups made of HPB325 grade steel for which no specific requirements are specified, the diameter of the arc formed by the hook should be greater than the diameter of the stressed steel bar, and not less than 2.5 times the diameter of the stirrup. The length of the straight portion of the hook should be at least 5 times the diameter of the stirrup in ordinary structures; in structures with seismic requirements, it should be at least 10 times the diameter of the stirrup.
2.5x 5x 10x
2.5x 5x 10x
For stirrups made of HPB325 grade steel for which no specific design requirements apply, the diameter of the arc formed by the bend in the stirrup should be greater than the diameter of the reinforcing bar, and it should also be no less than 4 times the diameter of the stirrup. The length of the straight part of the bend should be at least 5 times the diameter of the stirrup in ordinary structures; in structures with seismic requirements, it should be no less than 10 times the diameter of the stirrup.
When no specific requirements are given for the design, HPB235 grade rebar should be used. The bending diameter of the rebar hooks shall be greater than the diameter of the stressed rebar, and not less than 2.5 times the diameter of the stirrups
2.5, 5, 10. . . . . . . . . . . . . . . . .
When designing stirrups made of HPB325 grade steel for which no specific requirements are specified, the diameter of the arc of the hook should be greater than the diameter of the stressed steel bar, and not less than 2.5 times the diameter of the stirrup. The length of the straight part of the hook should be at least 5 times the diameter of the stirrup for ordinary structures; for structures with seismic requirements, it should be at least 10 times the diameter of the stirrup. Answer: 2.5 times, 5 times, 10 times
When designing stirrups made of HPB325 grade steel for which no specific requirements are specified, the diameter of the arc formed by the hook should be greater than the diameter of the stress-bearing steel bar, and not less than 2.5 times the diameter of the stirrup. The length of the straight part of the hook should be at least 5 times the diameter of the stirrup in general structures; in structures with seismic requirements, it should be at least 10 times the diameter of the stirrup.