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Introduction, Materials and Properties

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Title: Introduction, Materials and Properties


1
1
?? Introduction, Materials and Properties
- ???????Reinforced Concrete Structures -
????????Mechanical Properties of Concrete -
??Steel Reinforcement
2
Reinforced Concrete (RC) Structures
Concrete high compressive strength but low
tensile strength
Steel bars embedded in concrete (reinforcing)
provide tensile strength
3
Steel and Concrete in Combination
(1) Bond between steel and concrete prevents slip
of the steel bars.
(2) Concrete covering prevent water intrusion and
bar corrosion.
4
Concrete Weight
Plain concrete 2.323 t/m3 Steel 7.850
t/m3 Reinforced concrete 2.400
t/m3 Lightweight concrete 1.6 - 2.0 t/m3
5
???(Concrete)
  • ??????????,????????????????
  • ???????????????????? (??)???,?????????????????????
    ??????????????,????????????

6
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  • ??Advantages
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  • ??Disadvantage
  • ?????
  • ??????8-13
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  • ??????20
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7
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8
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12
IfcBridgeStructureElement
Cables
Pylon
Pylon
Deck
IfcBridgePrismaticElement
Segments S1?
IfcBridgeFibre
IfcBridgeSegment
(concrete)
(steel)
(Transversal cut)
13
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  • ??
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  • ??

14
???????COMPONENTS OF A BRIDGE
  • ???Deck or Slab
  • supported roadway on abridge
  • ?Beam or Girder
  • A rigid, usually horizontal, structural element
  • ??Abutment
  • The outermost end supports on a bridge, which
    carry the load from the deck
  • ??Pier
  • A vertical supporting structure, such as a pillar
  • ??Foundation

15
???????
16
????????
  • ???????,??????????
  • ??????????????

17
Pier Analysis Model
18
Cross Section of the Bridge
Cross Section of the Bridge
19
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28
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31
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