SAP2000 SAP2000 Web Tutorial 1

More documents

Recommendations

Info

The following assumptions are used for dead and live loads: Roof: Second Floor: Perimeter Wall: DL = 40 psf LL = 20 psf DL = 80 psf LL = 50 psf DL = 20 psf These loads are assumed to include the self-weight of the structural elements. Figure B-4 shows the beam span loads that are applied to each beam in the SAP2000 model. Roof Beams 39, 40, 51, 52 0.40 klf DL 0.12 klf LL Second Floor Beams 14, 15, 24, 25 0.72 klf DL 0.30 klf LL Roof Beams 41/44, 42, 47/50, 49 Second Floor Beams 16, 18, 21, 23 5.76 k DL 11.52 k DL 0.16 klf DL 2.88 k LL 0.24 klf DL 7.20 k LL Roof Beams 45, 46 0.48 klf DL 0.24 klf LL Second Floor Beams 19, 20 0.96 klf DL 0.60 klf LL Roof Beams 43, 48 11.52 k DL 5.76 k LL Second Floor Beams 17, 22 23.04 k DL 14.40 k LL Figure B-4: Beam Span Loads Used In SAP2000 Model SAP2000 Web Tutorial 1 6
For this model, all mass is input at the joints. Table B-1 defines the joint masses used in the model. The bottom portion of the table defines the masses, the top portion of the table defines which joints are referred to as the center, corner and edge joints. Note that no mass is assigned to joints 22 and 26 at the roof level. These are the joints at the top of the chevron braces. Joint Labels at Center, Edge and Corner Joints Level Center Joint Edge Joints Corner Joints Roof 24 20, 23, 25, 28 19, 21, 27, 29 Second 14 11, 13, 15, 17 10, 12, 16, 18 Joint Masses at Center, Edge and Corner Joints (k-sec 2 / ft) Level Center Joint Edge Joints Corner Joints Roof 0.72 0.48 0.30 Second 1.45 0.90 0.55 Table B-1: Joint Masses Used In Computer Model The lateral earthquake loads are assumed to be 17 kips (0.0074ksf) at the roof level and 16 kips at the second level for the X-direction (moment frame direction), and 26 kips (0.0113 ksf) at the roof level and 23 kips at the second level for the Y-direction (braced frame direction). These forces are assigned as shell static uniform loads at the roof level and as joint loads at the second level. The second level forces are broken down into joint loads as shown in Table B-2. Joint Loads at Center, Edge and Corner Joints (k) For Second Level Earthquake Direction Center Joint 14 Edge Joints 11, 13, 15, 17 Corner Joints 10, 12, 16, 18 EQX 2.67 2.00 1.33 EQY 3.83 2.88 1.92 Table B-2: Joint Forces Used In Computer Model For Static Earthquake Loading At Second Floor Level In X and Y Direction SAP2000 Web Tutorial 1 7
Page 1 and 2: SAP2000 ® Integrated Finite Elemen
Page 3 and 4: DISCLAIMER CONSIDERABLE TIME, EFFOR
Page 5 and 6: A. Introduction This tutorial is qu
Page 7 and 8: B. Description of Building Model Th
Page 9: Roof Level Second Floor Level Figur
Page 13 and 14: ä Check the Restraints box if it i
Page 15 and 16: 12. Place the mouse pointer near th
Page 17 and 18: 18. Place the mouse pointer on the
Page 19 and 20: 37. Click on the points labeled “
Page 21 and 22: If you started the model from scrat
Page 23 and 24: Thus click the ten locations design
Page 25 and 26: Highlight -12 in the Y Location lis
Page 27 and 28: 26. Click anywhere on the combined
Page 29 and 30: Figure C-14: Model After Braces Hav
Page 31 and 32: 56. To finish defining the model ge
Page 33 and 34: • Accept the rest of the default
Page 35 and 36: 16. Highlight CONC in the Materials
Page 37 and 38: Note: Frame sections may be selecte
Page 39 and 40: Step 6: Assigning Groups Groups can
Page 41 and 42: 13. Click the Set Intersecting Line
Page 43 and 44: 37. From the Assign menu choose Gro
Page 45 and 46: Step 7: Assigning Frame Sections Re
Page 47 and 48: 18. In the Frame Sections area clic
Page 49 and 50: 47. In the Frame Sections area clic
Page 51 and 52: Step 8: Assigning Shell Sections 1.
Page 53 and 54: Figure C-16: Frame Element Local Ax
Page 55 and 56: Step 10: Defining Static Load Cases
Page 57 and 58: Step 11: Assigning Frame Static Loa
Page 59 and 60: In the Uniform Load area, type 0. C
Page 61 and 62:
Click the OK button to apply the lo
Page 63 and 64:
52. Click the Restore Previous Sele
Page 65 and 66:
Step 12: Assigning Shell Static Loa
Page 67 and 68:
Step 13: Assigning Joint Static Loa
Page 69 and 70:
Select EQX from the Load Case Name
Page 71 and 72:
Step 14: Assigning Joint Masses We
Page 73 and 74:
22. Click the Set Elements button o
Page 75 and 76:
Step 16: Static and Dynamic Analysi
Page 77 and 78:
5. Use the scroll bar to review the
Page 79 and 80:
Step 18: Reviewing Deformed Shapes
Page 81 and 82:
Step 19: Reviewing Forces and Stres
Page 83 and 84:
18. All of the load cases in the Se
Page 85 and 86:
Step 20: Performing a Steel Design
Page 87 and 88:
11. From the Select menu select Sel
Page 89 and 90:
21. Now we will confirm the unbrace
Page 91 and 92:
and # represents the hinge number.
Page 93 and 94:
• In the Type area select the For
Page 95 and 96:
• Type 1 in the Relative Distance
Page 97 and 98:
19. Click the Save Model button on
Page 99 and 100:
Figure D-2: Frame Hinge Property Da
Page 101 and 102:
12. Click the Set Elements button o
Page 103 and 104:
Figure D-3: Static Pushover Case Da
Page 105 and 106:
the denominator is always the yield
Page 107 and 108:
• In the Options area, select GRA
Page 109 and 110:
Step 5: Running the Pushover Analys
Page 111 and 112:
9. Note that the title of the windo
Page 113 and 114:
force is dropped, all elements unlo
Page 115 and 116:
3. Note that the title of the windo
Page 117 and 118:
Figure D-7: Pushover Curve For Push
Page 119 and 120:
Figure D-8: Capacity spectrum For P
Page 121 and 122:
Note: In the ADRS format, lines of
Page 123 and 124:
32. Check the Show Constant Period
Page 125 and 126:
46. From the File menu at the top o
Page 127:
E. Final Comments This tutorial, to
show all

SAP2000 SAP2000 Web Tutorial 1

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?