Steel is commonly used in construction due to its high strength, easy fabrication, and high scrap value. However, it has high costs and requires maintenance due to corrosion. Steel is available in various sections like bars, angles, channels, I-beams, and built-up sections. Common steel structures include towers, trusses, tanks, bridges, chimneys, cranes, and columns. Loads on steel structures include dead loads from structural members, live loads from movable equipment, and wind loads depending on structure height and shape.

3. STEEL

7. 1) Steel is commonly used as a
construction over a century.
2) Steel available in various grade.
3) Steel available in different section for
design of steel section.

16. 1)High Strength in tension as well as
compression

17. 2)Easy to fabricate
3)High scrap value
4)Easy to repair

28. DISADVANTAGES
OF
STEEL

32. 1)High Cost
2)More Expensive
3)Maintenance required due
to corrosion of steel

36. DIFFERENT
SECTION OF
STEEL

39. 1)Bar/Circular Section

40. 2)Hollow Circular Section
3) Square/Rectangular Section

41. 4) Hollow Rectangular Section
5)Rolled Steels Section

43. 6)Built Up Section

44. 7) Standard Rolled Steel
Section

46. i) Angel Section

47. a) CLASSIFICATION

48. 1)Equal Angle Section

50. 2) Unequal Angle
Section

51. ii)Beam/I Section

53. CLASSIFICATION
1)ISJB- Indian Standard Junior
Beam Section

54. 2)ISLB- Indian Standard Light
Weight Beam Section

55. 3)ISMB- Indian Standard Medium
weight Beam Section

56. 4)ISWB- Indian Standard Wide
Flange Beam Section
5)ISHB- Indian Standard Heavy
Beam Section

57. 6)ISSC- Indian Standard Column
Section

58. iii) Channel/C-Section

59. CLASSIFICATION
1)ISJC- Indian Standard Junior Channel
Section

60. 2)ISLC- Indian Standard Light weight
Channel Section
3)ISMC- Indian Standard Medium weight
Channel Section

61. 4)ISPG- Indian Standard Gate Channel
Section with Parallel Flange
5)ISLCP- Indian Standard Light weight
Channel Section with Parallel Flange

62. iv)T -Section
CLASSIFICATION

63. 1)ISNT- Indian Standard Normal T
Bars/Section
2)ISJT- Indian Standard Junior T -Section

64. 3)ISHT - Indian Standard Heavy T Bar

65. 4)ISLT - Indian Standard Light weight T
Bar
5)ISST - Indian Standard Special Legged
T Bars

66. 6)ISDT - Indian Standard Deep legged T
Bars

67. 7)ISPL - Indian Standard Plate Section
8)ISF - Indian Standard Flat Section

68. 9)ISSQ - Indian Standard Square Section

69. Different Steel Structure &
Structural Member

70. 1)Towers

71. 2) Steel Roof Truss

72. 3)Water Tank

73. 4) Bridge
5)Chimney

74. 6)Crane Grider

75. 7)
Column

76. 1)Towers
i)It may be self supporting or cable stayed.
ii)It can be made from angle or tubes bolted at side.

77. TYPES

78. 1)Telephone Tower
2)Transmission Tower

79. 3)Windmill Tower
.
4)Light House

80. FUNCTION

81. To provide the support.

82. 2) Steel Roof Truss
i)Truss is framed structure.
iii)In the area of heavy rainfall.
ii)It consists of different member like principal rafter main tie, struct.
FUNCTION
To provide roof(cover) to the structure

83. TYPE
i)Howe Truss
ii)Pratt Truss
iii)Fan Truss
iv)Fink Truss

84. 3)Water Tank
1)They may circular rectangular or spherical in shape.
2)They may be resting on ground or to be elevated.
FUNCTION

85. To contain the material
4) Bridges
1)The truss & plate girder bridge are commonly used for small to moderate span.
2)Cable stayed & suspension bridge for long span.

86. FUNCTION
1)To provide the runway.
2)To facilitate transportation across river & valleys.
5) Chimneys

87. 1) Steel chimney
2) Steel stack are constructed for emissions of fuel or gas higher in the atmosphere to
reduce pollution.
FUNCTION
For venting hot gases & smoke.

88. 6)Crane Grider
The travelling overhead cranes are commonly used in workshop & factories.
FUNCTION
To lift & transfer heavy machine & material from one place to another.

89. 7) COLUMN
Column is a vertical compression member carrying loads & moments
through beams .
FUNCTION
To give the support

91. TYPES of Load Acting on
Steel
structure
1)Dead Load (IS 875:1987 Part 1)

92. 2)Live Load(IS 875:1987 Part 2)
3)Wind Load(IS 875:1987 Part 3)

93. 1)Dead Load/(D.L)
(IS 875:1987 Part 1)

94. a)It is a self weight of structural member
constant in mangitude & fixed in position.
b)Dead load is also called as fixed load.
c)It include weight of roof
covering,purlin,truss, beam, column.
d) Steel Density-78.5KN/M^3

95. 2)Live Load/(L.L)
(IS 875:1987 Part 2)

96. a)Live load is also called imposed
load.
b)It include weight of stored material
movable equipment.

97. 3)Wind Load/(W.L)
(IS 875:19987 Part 3)

99. 1)Wind pressure exerted on structure is called as wind
load.
2)Wind Load depends on /factor affecting
a) Shape of the structure
b) Height of structure
c)Wind Velocity

100. d) Orientation