STATICALLY DETERMINATE STRUCTURES

1. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
cperez.eps@ceu.es
molina.eps@ceu.es
Hipódromo de la Zarzuela. Madrid 1931. Archiches y Domínguaz. Eduardo Torroja.
Assignment 1 year 18/19
STATICALLY DETERMINATE BEAMS AND FRAMES
DISPLACEMENTS

2. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
STRUCTURAL ANALYSIS I
2017/2018 CLASS 2

3. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
SIMILARITIES AND DIFFERENCES?

4. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
STATICALLY DETERMINATE? REACTION FORCES?

5. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
real bars elongation
Δ𝐿 =
𝑁𝐿
𝐸𝐴
It gives us information
about the contribution of
each member to the
displacement we want to
calculate
vC= 𝑁∗ 𝑥
𝑁𝐿
𝐸𝐴
=
−23,48𝑃𝑎
𝐸𝐴

6. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
It gives us information
about the contribution of
each member to the
displacement we want to
calculate
vC = 𝑁∗ 𝑥
𝑁𝐿
𝐸𝐴
=
14,48𝑃𝑎
𝐸𝐴
real bars elongation
Δ𝐿 =
𝑁𝐿
𝐸𝐴

7. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
ARE BOTH STATICALLY DETERMINATE?

8. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WILL BOTH MOVE HORIZONTALLY? TO THE LEFT OR TO THE RIGHT?

9. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
IN WHICH THE MAXIMUM BENDING MOMENT WILL BE HIGHER?

10. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
IN WHICH THE MAXIMUM VERTICAL DISPLACEMENT WILL BE HIGHER?

11. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
STATICALLY DETERMINATE? REACTION FORCES?

12. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
STATICALLY DETERMINATE? REACTION FORCES?

13. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

14. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

15. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

16. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

17. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
P* x uC =
𝑀⋅𝑀∗
𝐸𝐼
ⅆ𝑥
UNIT LOAD METHOD

18. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
REMEMBER!
WE ONLY CONSIDER MOVEMENTS PRODUCED BY BENDING
MOMENTS. WE NEGLECT SHEAR FORCE AND AXIAL FORCE
DEFORMATIONS. WE ASSUME BARS ARE INEXTENSIBLE

19. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
SIMPSON’S RULE

20. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
P* x uC =
𝑀⋅𝑀∗
𝐸𝐼
ⅆ𝑥
UNIT LOAD METHOD
𝑀 ⋅ 𝑀∗
𝐸𝐼
ⅆ𝑥 =
SIMPSON’S RULE
=
𝑀1 ∙ 𝑀1
∗
+ 4𝑀2 ∙ 𝑀2
∗
+ 𝑀3 ∙ 𝑀3
∗
6𝐸𝐼
𝑥 𝐿

21. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
P* x uC =
𝑀⋅𝑀∗
𝐸𝐼
ⅆ𝑥
UNIT LOAD METHOD
𝑢𝐶 =
𝑀1 ∙ 𝑀1
∗
+ 4𝑀2 ∙ 𝑀2
∗
+ 𝑀3 ∙ 𝑀3
∗
6𝐸𝐼
𝑥 𝐿 =
4 𝑥6,125𝑞𝑎2 𝑥4𝑎 𝑥7𝑎
6𝐸𝐼
= 𝟏𝟏𝟒, 𝟑𝟑𝒒𝒂 𝟒
/𝑬𝑰

22. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

23. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
P* x uA =
𝑀⋅𝑀∗
𝐸𝐼
ⅆ𝑥 +
𝑀⋅𝑀∗
𝐸𝐼
ⅆ𝑥 +
𝑀⋅𝑀∗
𝐸𝐼
ⅆ𝑥
UNIT LOAD METHOD
𝑢𝐴 =
4 𝑥1,5𝑞𝑎2 𝑥1,71𝑎 + 3𝑞𝑎2 𝑥3,43𝑎 𝑥 17𝑎
6𝐸𝐼
+
3,43𝑞𝑎2 𝑥4𝑎 + 4𝑥6𝑞𝑎2 𝑥1,71𝑎 𝑥6𝑎
6𝐸𝐼
+
−4𝑥6,125𝑞𝑎2 𝑥2𝑎 𝑥7𝑎
6𝐸𝐼
= 𝟒, 𝟕𝟓𝒒𝒂 𝟒
/𝑬𝑰
INCLINED
SUPPORT
BEAM DE BEAM EF

24. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
q=10 kN/m // a = 0,5 m // EI =30000 kNm2
2,38 mm-0,1 mm
u=1,19 mmu=1,19 mmu=1,19 mm
v=-0,34 mm

25. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMSSIMPLE BEAMS FORMULAS

26. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHERE IN THIS FRAME CAN WE APPLY EASILY THE SIMPLE BEAM FORMULAS?

27. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

28. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
𝑣(𝐸𝐹) =
−5𝑞 𝐿4
384𝐸𝐼
= -0,65 mm
v=-0,65 mm

29. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

30. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
cperez.eps@ceu.es
federico.prietomunoz@ceu.es
19,53 mm
9,96 mm
v=-2,5 mm
u=9,96 mm

31. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
cperez.eps@ceu.es
federico.prietomunoz@ceu.es

32. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
ARE ALL OF THEM STATICALLY DETERMINATE?

33. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
REMEMBER:
THE LOAD FOLLOWS THE SHORTEST WAY
TO REACH THE GROUND

34. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHICH BARS ARE GOING TO WORK IN EACH TRUSS?

35. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHICH BARS ARE GOING TO WORK IN EACH TRUSS?

36. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHICH BARS ARE GOING TO WORK IN EACH TRUSS?

37. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
AXIAL FORCES

38. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
DO THESE RESLTS MAKE SENSE?

39. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
CAN WE APPLY THE SUPERPOSITION PRINCIPLE?

40. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
TO CALCULATE THE HORIZONTAL DISPLACEMENT AT THE ROLLER WE MUST USE
AN AUXILIARY SYSTEM
CAN THIS SYSTEM BE THE SAME FOR EVERY TRUSS?

41. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
CAN WE APPLY THE SUPERPOSITION PRINCIPLE?

42. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
BEAM 5
BEAM 6
LET’S COMPARE THESE BEAMS BEHAVIOUR

43. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
BEAM 5
BEAM 6
BOTH BEAMS REACTION FORCES ARE EQUAL WHY?
WHAT WOULD HAPPEN IF A WAS FIXED SUPPORTED INSTEAD OF PINNED?

44. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
BENDING MOMENTS DIAGRAM

45. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHICH EFFECTS AFFECT THE VERTICAL DISPLACEMENT AT THE END OF THE CANTILEVER?
BEAM 5

46. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
THE EFFECT OF THE CANTILIVER IMPLIES A ROTATION 0 AT THE FIXED END

47. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
TO CALCULATE THE ROTATION AT B … WHICH EFFECTS DO WE HAVE TO CONSIDER?
BEAM 5

48. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
THE EFFECT OF THE DISTRIBUTED LOAD PLUS THE EFFECT OF THE END MOMENT

49. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
THE VERTICAL DISPLACEMENT AT C IS THE ADDITION
OF THE ROTATION AT B EFFECT PLUS THE CANTILEVER LOAD EFFECT

50. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
BEAM 6
TO CALCULATE THE VERTICAL DISPLACEMENT AT C…
WHICH EFFECTS DO WE HAVE TO CONSIDER?

51. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
TO CALCULATE THE VERTICAL DISPLACEMENT AT C…
WHICH EFFECTS DO WE HAVE TO CONSIDER?
BEAM 6
WE MUST CONSIDER SAME AS BEAM (5)
PLUS THE EFFECT OF THE CABLE ELONGATION

52. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
BEAM 6

53. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
BEAM 6
WE WOULD GET SAME RESULT IF WE APPLY UNIT LOAD METHOD
WATCH OUT!!!!!
WE SHOULD CONSIDER
THE BENDING
MOMENTS OF THE
BEAM AND THE AXIAL
FORCE IN THE CABLE!

54. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

55. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
IS THIS A STATICALLY DETERMINATE SYSTEM?
WHAT HAPPENS IF WE REMOVE THE CABLE AF?

56. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHICH LOADS AFFECT THE CABLE AXIAL FORCE?

57. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHICH PART OF THE SYSTEM IS AFFECTED BY THE DISTRIBUTED LOAD q?

58. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
REMEMBER:
THE LOAD FOLLOWS THE SHORTEST WAY
TO REACH THE GROUND

59. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
CABLE AXIAL FORCE?
Equilibrium equation:
MG = 0
- P x 6a + P x 4 a + N x 2a = 0
N = P
Gy = 3P

60. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHICH BARS ARE NOT GOING TO WORK?

61. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
BARS AXIAL FORCES? (JOINTS EQUILIBRIUM)

62. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHAT HAPPENS IN THIS KIND OF FOUNDATIONS?

63. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

64. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
STRUCTURAL ANALYSIS I
2017/2018 CLASS 3
DO THESE RESLTS MAKE SENSE?

65. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
+
CAN WE APPLY THE SUPERPOSITION PRINCIPLE?

66. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
WHICH DISPLACEMENTS CAN WE CALCULATE MORE EASILY?
WHY ARE THESE TWO DIAGRAMS USEFUL
TO COMPUTE THE DISPLACEMENTS?

67. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
VERTICAL DISPLACEMENT AT F
ONLY THE CABLE AXIAL FORCE AFFECTS IT
vF = N x L / EA
vF = 3P x 6a / 65971,5
F goes up
vF varies from 1,81 mm to 3,8 mm

68. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMSHORIZONTAL DISPLACEMENT AT G
ONLY THE COLUMN BG BENDING MOMENT AFFECTS IT
uG = 4,5qa x (6a + 4 x 4,5a + 3a)/(6x 52857) x 3a
uG varies between 11,49 and 55,37 mm

69. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMSHORIZONTAL DISPLACEMENT AT D
ONLY THE COLUMN BG BENDING MOMENT AFFECTS IT
uD = 4,5qa2 x (3a + 4 x 1,5a + 0)/(6x 52857) x 3a
uD varies between 3,83 and 18,46 mm

70. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMSVERTICAL DISPLACEMENT AT D
THE COLUMN BG AND THE BEAM CD BENDING MOMENTS AFFECTS IT
vD = 3qa2 + 4 x 3a + 3a)/(6x 52857) x 3a +
(4,5qa2 x 3a + 4 x 1,125qa2 x 1,5a + 0)/(6x11970) x 3a
vD varies between -16,1 and -77,7 mm

71. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMSVERTICAL DISPLACEMENT AT J
THE TRUSS AND THE CABLE AXIAL FORCE AFFECT IT
vJ = S (N* x N x L / EA)for each bar + P x (-3) /65951
vJ varies between -12,21 and -25,67 mm

72. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMSVERTICAL DISPLACEMENT AT I
THE TRUSS AND THE CABLE AXIAL FORCE AFFECT IT
vJ = S (N* x N x L / EA)for each bar + P x (+2) /65951
vJ varies between 4,81 and 10,11 mm

73. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
REMEMBER!
IN BEAMS A COLUMNS WE ONLY CONSIDER MOVEMENTS
PRODUCED BY BENDING MOMENTS. WE NEGLECT SHEAR
FORCE AND AXIAL FORCE DEFORMATIONS. WE ASSUME BARS
ARE INEXTENSIBLE
UNLESS CABLES OR TRUSSES ARE INVOLVED

74. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS

75. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
IS IT UNSTABLE, STATICALLY DETERMINATE OR STATICALLY INDETERMINATE?

76. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
IS IT UNSTABLE, STATICALLY DETERMINATE OR STATICALLY INDETERMINATE?

77. cperez.eps@ceu.es
molina.eps@ceu.es
STRUCTURAL ANALYSIS I
DEGREE IN ARCHITECTURE
Year 3 Term 1
STATICALLY DETERMINATE SYSTEMS
IS IT UNSTABLE, STATICALLY DETERMINATE OR STATICALLY INDETERMINATE?