Guangzhou Steel remind you: Steel Design Considerations
First, get a job, do not blindly diagram modeling calculations. The first comprehensive analysis of the design and construction staff with communication, to fully understand the various situations engineering (functional, selection, etc.).
Second, pre-processing computing model to do before. Let's load calculation must be accurate, it can not be estimated. To completely according to building practice or usage requirements to enter.
Third, during the time structure modeling, to understand the meaning of each argument, do not blindly correction parameters, must be based on the time correction.
Fourth, in the calculation, we should give full consideration to meet the technical conditions in the economy. We can not arbitrarily increase the amount of reinforcement or increasing section member. This is to be used as part of our design philosophy to pay attention.
Fifth, beams, columns, plates, etc. to be completed after power operator a lot of adjustments and amendments, which should have according to follow (according to diagram checking, etc.). Guangzhou Steel specifically the following focus amend or note:
a, Liang:
1, the beam elevation (which is not to determine the beam bottom elevation and beam translation problems)
2, bearing negative reinforcement beams can not be too sparse to artificially encryption.
3, the number of beams to cross check.
4, try to reduce the kind of reinforcement and differential (≤2 grade)
5, substandard awning beams pick at strengthening member (stirrups encryption can be here, and other measures set torsion bar)
6, steel beams in place must meet the spacing requirements, particularly the upper steel beam spacing (≥1.5d or 30mm)
7, met ICC results crosswise beam (with primary and secondary relationship), Office to prioritize relations, marked bearing bars at the main beam support
8, resting on the side of the beam coupling beams, etc., in the seat at the bar aside beams should not be too large, should be reduced, and then cut back on the side of the beam torque
9, the relationship between primary and secondary beams from the beam section is also different, secondary beams appropriate to put small. Guangzhou Steel
b, Column:
1, to meet the requirements of axial compression ratio (≤0.9)
2, factories and other large span, pillars rectangular column cross-section should be selected.
3, set the configuration column (scrutinized standard "Seismic Design Standards" P72)
c, board:
1, negative reinforcement should not use too small steel can with steel instead of larger diameter, to avoid the construction is depressed; large
Diameter steel should not be too sparse, or discontinuity force or easy to crack.
2, the construction plan must state the elevation and sectional view of the plate.
3, roof steel shall all pull through.
4, plate reinforcement to express clearly, can not let the construction workers guessing.
5, the construction plan, the indicated awning, balconies, cornices and other orientation and size, and draw a large sample.
d, Basics:
1, can not be deep and shallow foundation base mix.
2, when the base load calculation, do not load leaking count (including the underlying wall load weight, etc.)
3, the base (including ground beams, caps, etc.) to meet the upper elevation through pipelines, generally on reservation 300mm. Guangzhou Steel
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