Hainan Steel tells you: Steel Design Considerations

First, get a job, do not blindly diagram modeling accounting. The first comprehensive analysis of the design and construction staff with communication, to fully understand the various situations engineering (functional, selection, etc.).

Second, pre-treatment before the accounting model to do. For example, to be precise accounting of load, you can not measure. To fully use according to building practice or request input.

Third, during the structure modeling division, to understand the meaning of each argument, do not blindly modify parameters when modifying must be based.

Fourth, in accounting, to fully consider the technical conditions under satisfactory 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. After the ICC to be a lot of adjustments and modifications, which should have a basis to follow (according to diagram checking, etc.). Hainan Steel specifically focused on the following modified or note:

a, Liang:

1, the beam elevation (Are you sure you turn the beam bottom elevation and beam 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 cut steel varieties and differential (≤2 grade)

5, substandard awning beams pick at strengthening member (can be here stirrups encryption, set the torsion bar and other measures)

6, steel beams in place must be satisfied with the spacing of the request, particularly the upper steel beam spacing (≥1.5d or 30mm)

7, met ICC results crosswise beam (with primary and secondary contact) at contact to prioritize, 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, thereby reducing the torque of the side beams

9, there are primary and secondary beam contact, from the beam section is also different, put a small secondary beam appropriate. Hainan Steel

b, Column:

1, the satisfaction of axial compression ratio request (≤0.9)

2, factories and other large span, pillars rectangular column cross-section should be selected.

3, set the structure column (scrutinized norms "Seismic Design of Buildings" P72)

c, board:

1, negative reinforcement should not use too small of steel, steel can be used 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, in the structure plan must state the elevation and sectional view of the plate.

3, roof steel shall all pull through.

4, plate reinforcement to express understand, can not let the construction workers conjecture.

5, in the structure plan, and indicate awning, balconies, cornices and other locations and scales, 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, Hainan steel base (including ground beams, caps etc.) satisfaction level to the upper portion of the pipeline passes through, usually on reserve 300mm.