Dilshan's Activities

Double angle section for bttom cord in truss?

Dilshan — Fri, 16 Aug 2019 10:12:41 GMT

Hey guys,

I did a truss analysis and I made it's bottom cord as double angle section. After doing analysis, it showed section failed due to slenderness. Then I used SELECT parameter and it gave me compatible section for bottom cord but I really want is double angle for bottom cord. Can you solved this problem?communities.bentley.com/.../3465.Structure1.std

slender member

Dilshan — Thu, 06 Jun 2019 06:14:25 GMT

How to design slender member according to BS 5950 2000 in staad? what are the parameters to be provided?

Steel truss

Dilshan — Thu, 06 Jun 2019 04:39:25 GMT

what is the procedure for analyzing for slenderness for member....since my staad file not giving results for slenderness...I want to check slenderness checking for Member 1

Whats the wrong with the codes????

it should give Compresion capacity 261 KN

Moment capacity 6.7 KNm according to BS 5950

This is my file codes

STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 06-Jun-19
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 0 0; 2 8 3.2 0; 3 2 0.8 0; 4 4 1.6 0; 5 6 2.4 0; 6 2.32 0 0;
7 4.64 0 0; 8 6.32 1.6 0; 9 16 0 0; 10 14 0.8 0; 11 12 1.6 0;
12 10 2.4 0; 13 13.68 0 0; 14 11.36 0 0; 15 9.68 1.6 0; 16 8 0 0;
MEMBER INCIDENCES
1 1 3; 2 3 4; 3 4 5; 4 5 2; 5 1 6; 6 6 7; 7 7 16; 8 6 3; 9 6 4; 10 4 7;
11 4 8; 12 5 8; 13 7 8; 14 8 2; 15 10 11; 16 11 12; 17 12 2; 18 9 13;
19 13 14; 20 14 15; 21 13 11; 22 13 10; 23 15 2; 24 11 15; 25 12 15;
26 11 14; 28 16 14; 100 9 10;
DEFINE MATERIAL START
ISOTROPIC STEEL
E 2.05e+008
POISSON 0.3
DENSITY 76.8195
ALPHA 1.2e-005
DAMP 0.03
TYPE STEEL
STRENGTH FY 253200 FU 407800 RY 1.5 RT 1.2
END DEFINE MATERIAL
MEMBER PROPERTY BRITISH
1 TO 4 15 TO 17 100 TABLE LD UA80x60x7 SP 0.008
5 TO 7 18 19 28 TABLE LD UA75x50x6 SP 0.008
8 TO 14 20 TO 26 TABLE LD UA60x60x6 SP 0.008
CONSTANTS
BETA 180 MEMB 5 TO 7 18 19 28
MATERIAL STEEL ALL
SUPPORTS
1 9 PINNED
UNIT MMS KN
LOAD 1 LOADTYPE Dead TITLE LOAD CASE 1
JOINT LOAD
2 TO 5 10 TO 12 FY -2.37
1 9 FY -1.19
LOAD 2 LOADTYPE Live TITLE LOAD CASE 2
JOINT LOAD
2 TO 5 10 TO 12 FY -6
1 9 FY -3
LOAD 3 LOADTYPE Wind TITLE LOAD CASE 3
MEMBER LOAD
2 TO 4 15 TO 17 CON Y 5.25 2.15
4 17 CON Y 2.63 2155
1 100 CON Y 2.63 0
LOAD COMB 4 COMBINATION LOAD CASE 4
1 1.4 2 1.4
LOAD COMB 5 COMBINATION LOAD CASE 5
1 1.0 3 1.4
PERFORM ANALYSIS
PERFORM ANALYSIS
PERFORM ANALYSIS
PERFORM ANALYSIS
PARAMETER 1
CODE BS5950
PY 0.275 MEMB 1
SBLT 0 MEMB 1
SGR 0 MEMB 1
TRACK 2 MEMB 1
CHECK CODE MEMB 1
FINISH

Beam force details doesn't give same value throughout section?

Dilshan — Wed, 22 May 2019 10:59:22 GMT

I have analyzed a truss using staad.but it gives beam end forces at only ends rather than gives same value throughout the section

Plate loads and floor loads

Dilshan — Mon, 03 Jun 2019 08:36:07 GMT

what is the difference between plate loads and floor loads on slab designing in staadpro. why peoples used plate loads on slabs?

Steel design

Dilshan — Sat, 01 Jun 2019 04:57:33 GMT

what is the purpose having steel design tab in staad pro since all designing works can be done in modelling and then using post processing using commands????

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Wed, 22 May 2019 04:52:57 GMT

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