Earth 0207-eq.static-egy1993

1,221 views

Published on

Published in: Technology, Business
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,221
On SlideShare
0
From Embeds
0
Number of Embeds
6
Actions
Shares
0
Downloads
115
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Earth 0207-eq.static-egy1993

  1. 1. EARTHQUAKE ENGINEERING2.7. Equivalent Static Load Method 2.7.1. Egyptian Code 2.7.2. UBC Code
  2. 2. 2.7. Equivalent Static Load Egyptian CodeBase Shear Base Shear V=Z.I.K.C.S.W W4 Z Zone Factor W1 I Importance Factor K Structural System Factor H4 W2 C Structure Factor H3 S Soil Factor H2 W1 H1 W Design Weight Prof.Dr. Osman Shaalan 2 Earthquake Engineering Dr. Tharwat Sakr
  3. 3. 2.7. Equivalent Static Load Egyptian CodeZone Factor Prof.Dr. Osman Shaalan 3 Earthquake Engineering Dr. Tharwat Sakr
  4. 4. 2.7. Equivalent Static Load Egyptian CodeImportanceFactor Prof.Dr. Osman Shaalan 4 Earthquake Engineering Dr. Tharwat Sakr
  5. 5. 2.7. Equivalent Static Load Egyptian CodeStructural System Factor Prof.Dr. Osman Shaalan 5 Earthquake Engineering Dr. Tharwat Sakr
  6. 6. 2.7. Equivalent Static Load Egyptian CodeStructure Factor 1 C= C ≤ 0.12 15 T Prof.Dr. Osman Shaalan 6 Earthquake Engineering Dr. Tharwat Sakr
  7. 7. 2.7. Equivalent Static Load Egyptian CodeSoil Factor Prof.Dr. Osman Shaalan 7 Earthquake Engineering Dr. Tharwat Sakr
  8. 8. 2.7. Equivalent Static Load Egyptian CodeDesign Weight Prof.Dr. Osman Shaalan 8 Earthquake Engineering Dr. Tharwat Sakr
  9. 9. 2.7. Equivalent Static Load Egyptian CodeStory Forces Ft = 0.07 × T × V Top Story Additional Force Ft = 0.0 For T < 0.7 Ft ≤ 0.25V WjH j Story Forces Fj = N (V − Ft ) ∑ (W H ) i =1 i i Prof.Dr. Osman Shaalan 9 Earthquake Engineering Dr. Tharwat Sakr
  10. 10. 2.7. Equivalent Static Load Egyptian CodeDesign Eccentricity ed = e ± 0.05 B e Actual eccentricity 0.05B Accidental eccentricity B Building Breadth Prof.Dr. Osman Shaalan 10 Earthquake Engineering Dr. Tharwat Sakr
  11. 11. 2.7. Equivalent Static Load Egyptian CodeBuilding Example Building RC B+G+10+R Floor Plan As shown in the drawing Floors Basement 4m Parking Ground 5m Commercial First 5m Commercial Typical 3.5m Office Roof 3m Roof Location Zagazig Soil medium dense clay 20m then Sand Prof.Dr. Osman Shaalan 11 Earthquake Engineering Dr. Tharwat Sakr
  12. 12. 2.7. Equivalent Static Load Egyptian CodeFloor Area 800 m2 (assumed 20X40m)Roof Area 200 m2Slab thickness 200mm
  13. 13. 2.7. Equivalent Static Load Egyptian CodeBuilding ExampleSolution V = ZIKCSW Zone Factor Z =0.2 Zone 2 Importance factor I =1 Commercial Structural System K =1.33 Soil factor =1.15 Time Period (formula1) =0.1*13 =1.3 sec (formula 2) =0.9*52/√20 =0.976 sec Structure Factor C =1/15 √T =0.0675
  14. 14. 2.7. Equivalent Static Load Egyptian CodeLoads DL 0.2*25+2+3.5 = 10.5 kN/m2Design Weight =(10.5+5)*20*40 =12400 kN Ground, firstand =(10.5)*20*40 =8400 kN floors above firstand =(10.5)*200 =2100 kN roofTotal Weight =12400*2+8400*10+2100 =110900 kN
  15. 15. 2.7. Equivalent Static Load Egyptian CodeBase Shear V =0.2*1*1.33*.0675*1.15*110900 =2289 kNTop Force =0.07*1.05*2289 =156.4 kN
  16. 16. 2.7. Equivalent Static Load Egyptian Code Floor w ELEV WH Forces 0 12400 4 49600 38.3 1 12400 9 111600 86.18 2 8400 14 117600 90.81 3 8400 17.5 147000 113.5 4 8400 21 176400 136.2 5 8400 24.5 205800 158.9 6 8400 28 235200 181.6 7 8400 31.5 264600 204.3 8 8400 35 294000 227 9 8400 38.5 323400 249.7 10 8400 42 352800 272.4R 8400 45.5 382200 295.1TR 2100 48.5 101850 78.65SUM 110900 2762050 2133

×