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D13.E.4 Design Parameters

Table 1. Design parameters for design of steel members per SP 16.13330.2017
Parameter Name Default Value Description
CODE -

Must be specified as: RUSSIAN or RUSSIAN 2017

Design code to follow. See TR.48.1 Parameter Specifications.

BMT   Bimoment for design of eccentrically loaded members per clause 8.4 or members subjected to two bending moments per clause 8.2.
CB 1

Location of loading on the beam:

  • 1) top flange
  • 2) bottom flange
CMM 0

Slenderness limit for tension members:

  • 0) suppress slenderness check
  • 1) 150
  • 2) 200
  • 3) 250
  • 4) 300
  • 5) 350
  • 6) 400
Note: Slenderness check for member is performed against CMM or CMN parameters depending on the tension/compression nature of axial force. If the member is not subjected to axial force, slenderness check is not performed as there is no relevant clause in the SP 16.13330.2017.
CMN 0

Ultimate slenderness for compression members. Limits as per SP 16.13330.2017 clause 10.4, Table 32:

  • 0) suppress slenderness check
  • 1) 180-60a
  • 2) 120
  • 3) 210-60a
  • 4) 220-40a
  • 5) 220
  • 6) 180-60a
  • 7) 210-60a
  • 8) 200
  • 9) 150
where a = alpha calculated as defined in SP 16.13330.2017 Table 32.
Note: Slenderness check for member is performed against CMM or CMN parameters depending on the tension/compression nature of axial force. If the member is not subjected to axial force, slenderness check is not performed as there is no relevant clause in the SP 16.13330.2017.
DFF None

"Deflection Length" / Maximum allowable local deflection
DJ1 Start Joint of member  
DJ2 End Joint of member  
DMAX 1,000 in Maximum allowable section depth
DMIN 0 Minimum allowable section depth
ENSGR 1 The number of the steel grade from Table 3.1 in EN 1993-1-1: 2005. D5.C.6 Design Parameters for values. Also, see Note 1 below.
FU 0
Design steel strength (ultimate strength)
Note: Used when the SRG parameter is not defined.
GAMC1 1.0 Specific service condition coefficient for buckling design
GAMC2 1.0 Specific service condition coefficient for strength design
GAMM 1.0 Specific partial coefficient for steel, γm, for European or Russian steel. Refer to Table 3 in the SP 16.13330.2017 code.
  • 1) Gamma(n) = 1.025
  • 2) Gamma(n) = 1.05
GMF 1.0 Ratio between design and characteristic load value
KY 1.0 Coefficient of effective length in respect to local axis Y (in plane XZ)
KZ 1.0 Coefficient of effective length in respect to local axis Z (in plane XY)
LEG 4

Describes the type of and position of loading on the beam:

  • 1) concentrated in middle of the span
  • 2) concentrated in the quarter of the span
  • 3) concentrated at the end of bracket
  • 4) uniformly distributed along beam
  • 5) uniformly distributed on bracket
LY Member Length Effective length in respect to local axis Y (in plane XZ)
LZ Member Length Effective length in respect to local axis Z (in plane XY)
NSF 1.0 Net section factor for tension members or web section area weakening factor for bending members
PY 0

Design steel strength (yield strength)

Note: Used when parameters MAIN and SGR are not defined for Russian steel materials or ENMAIN and ENSGR for European steel materials. See Note 1 below.
SBLT 0

Number of lateral bracing restraints along the span:

  • 0) beam is not fixed laterally
  • 1) single restraint at mid-span
  • 2) or higher is the number of uniformly spaced lateral restraints along the span
SGR 1

Steel grade: See Note 1 below.

Grades from Table C5: hot-rolled profiles except of type K, SH, and B of I section beams (See Note 2 below)

  • 1) S245* (4-40 mm)
  • 2) S255* (4-40 mm)
  • 3) S345* (4-40 mm)
  • 4) S345K* (4-10 mm)
  • 5) S355*; S355-1* (8-40 mm)
  • 6) S390* (8-40 mm)

Grades from Table C3: sheets, wide strips, plates, pipes, and tubes

  • 7) S235 (2-4 mm)
  • 8) S245 (2-20 mm)
  • 9) S255 (2-40 mm)
  • 10) S345 (2-160 mm)
  • 11) S345K (4-10 mm)
  • 12) S355 (8-160 mm)
  • 13) S355-1; S355-K (8-60 mm)
  • 14) S355P (8-40 mm)
  • 15) S390; S390-1 (8-50 mm)
  • 16) S440 (8-50 mm)
  • 17) S550 (8-50 mm)
  • 18) S590 (8-50 mm)
  • 19) S690 (8-50 mm)

Grades from Table C4: I-beams with parallel flange faces, type K, SH, and B

  • 20) S255B; S255B-1 (0-100 mm)
  • 21) S345B (0-60 mm)
  • 22) S345B-1 (0-60 mm)
  • 23) S355B (0-100 mm)
  • 24) S355B-1 (0-60 mm)
  • 25) S390B (31-100 mm)
  • 26) S440B (0->100 mm)
STP 1 Section type:
  • 1) Rolled section
  • 2) Welded section
TB 1

Indication of stress strain state per Cl 4.2.7:

  • 1) 1st Class (Elastic)
  • 2) 2nd Class (Elasto-plastic)
  • 3) 3rd Class (Plastic)

The engineer shall consider the appropriate class of the member, as it is used in multiple checks under Ch.8. for elastic or elastic-plastic calculation for bending members (non-axially compressed or tensioned): Cl 8.2.1, Cl. 8.2.3, Cl. 8.4.1, Cl. 8.4.4, and Cl 8.4.6.
TRACK 0

Output details:

  • 0) design summary only
  • 1) extended output information for the critical section under the critical load case
  • 2) full output information for the critical section under the critical load case
  • 3) design summary only (Russian language)
  • 4) extended output information for the critical section under the critical load case (Russian language)
  • 5) full output information for the critical section under the critical load case (Russian language)

Notes

  1. It is common practice to design only Russian or European shapes to the Russian steel codes. For Russian steel sections, the steel design strength value, Ry, is obtained from Tables C.3, C.4, and C.5 of SP 16.13330.2017 determined by the assigned the SGR parameter. For European sections, the ENSGR should be used instead. If steel sections from other countries are used, the PY parameter should be used to specify the steel strength.

  2. SGR parameter values marked with an "*" are from Table C.5. These grades are also repeated in Table C.3 with different labels.

Parent topic: D13.E. Russian Codes - Steel Design per SP 16.13330.2017