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Wind Tunnel Facility

VIEWS: 15 PAGES: 26

									Key: Homework #1


   CE 222: Structural Analysis




           Durgesh C Rai
   Department of Civil Engineering
Indian Institute of Technology Kanpur
            Kanpur 208016
                   Visitor’s Hostel Complex
• Framed structure
     Reinforced concrete slab
     Column
     Beam
     Masonry walls
• Primary force resisting system                      RCC Slab
         Slab                               Columns

        Beam

       Column

      Foundation
• Secondary force resisting
  system                             Beam
                                                 Masonry wall
      Beam-Column
                                                                Problem-1 /2
                   Visitor’s Hostel Complex

Dining hall – Half - Inverted Umbrella
  Hyper
• Framed structure
      Reinforced concrete shell roof
      Column                                              Shell roof
                                         Rib
      Ribs
      Masonry walls
• Primary force resisting system
         Shell                                                   Shell roof


          Rib

        Column

      Foundation                         Masonry wall
                                                        Column

                                                                 Problem-1 /3
                       Visitor’s Hostel Complex


• Principal elements                                      Interior rib

      Shell roof – Membrane
      forces
      Interior rib
      Exterior rib supporting the
      shell , particularly in the
      exterior corners
      Central column                  Exterior rib




                                       Inverted Umbrella Hyper

                                                              Problem-1 /4
                    Health Center Complex

Patients ward                       RCC Slab
• Framed structure
      RC Slab
                                                          Beam
      Circular Column
      Beam                                            Column

      Masonry wall
• Primary force resisting system
        RC slab

         Beam

        Column
                                           Masonry wall

       Foundation

                                                                 Problem-1 /5
                     Health Center Complex

Reception
• Framed structure
      Shell roof
      Beam / Ties
      Column
• Primary force resisting system    Tie
                                                      Masonry wall
       Shell roof                            Column


         Ridge

         Ties                                         Shell roof


        Column

       Foundation
                                                           Problem-1 /6
                 Health Center Complex
                                                     Side ridge
The Shell act as an arch in
                              Top ridge
one direction and catenary
in the other
Top ridge is under
compression
Side ridge is under
compression with bending
(insignificant)




                                      Four gabled hyper




                                                             Problem-1 /7
                           Auditorium

Entrance
• Framed structure
      Reinforced concrete grid
      slab
      Column / RC Wall
      Beam
                                                   Masonry wall
      Masonry walls


                                                   Grid slab




                                   Beam   Column   RC wall

                                                        Problem-1 /8
                           Auditorium
                                                    Beam
• Framed structure
     Reinforced concrete cylindrical
     shell roof
     Column / RC Wall
     Beam
     Masonry walls
• Primary force resisting system                 Column

       Shell roof

       Beam / Tie
                                                          Shell roof


        Column


       Foundation
                                       RC wall

                                                                   Problem-1 /9
                              Auditorium


• Barrel shell roof
     Acts as a beam in the             Ties   Barrel roof

     longitudinal direction
     Acts as a arch in the
     curved area
     Arches supported by
     ties




                                                            Problem-1 /10
                      Wind Tunnel Facility

Wind tunnel building
   • Framed structure
          RCC beams & columns
          Masonry walls
          Reinforced concrete slab
   • Primary force resisting
      system
          Beam-column




                                             Problem-1 /11
                          Wind Tunnel




                                    Beam   Column



Wind tunnel

     Outside - Hexagonal shape

     Reinforced concrete framed
     structure



                                              Problem-1 /12
                         Wind Tunnel


• Stiff structure
• Beam-Column bay acts as
  lateral resisting system




                                       Problem-1 /13
                             Workshop

Truss building – North-light roof
      GI roofing sheet
      Primary member – Warren
      truss (with verticals)
      Secondary member – Half
      Howe truss
      Masonry wall
                                          Secondary truss
      Column




                                                                Purline



                                    Primary truss


                                                            Problem-1 /14
                           Workshop

• Force resisting system

            Roof

            Purlin

        Secondary truss

         Primary truss

           Column

          Foundation
• Lateral force resisting system
     Truss and column forming bay resists the lateral load



                                                             Problem-1 /15
                              Hangar

• Protective storage of aircraft
• Truss building
     GI sheet
     Purlin
     Primary member– Warren
     truss
     Secondary member- Joist
     Column
     Masonry wall




                                                          Joist
                                       Principal rafter


                                                                  Problem-1 /16
                              Hangar

• Primary load transfer
             Roof

             Purlin

             Joist

         Primary truss

           Column

           Foundation

• Lateral force resisting system
     Truss and column forming bay resists the lateral load



                                                             Problem-1 /17
                         Summary

  IITK buildings        Structure type         Roof type

   Health center       Framed structure   Rectangular parabolic
     complex                                     shell
  Visitor’s hostel     Framed structure     RCC slab & Shell
     complex
    Auditorium         Framed structure    Reinforced concrete
                                            cylindrical shell
 Hanger building       Industrial truss   GI corrugated roofing

Workshop building      Industrial truss   GI corrugated roofing
                                            (North light roof)
Wind tunnel facility   Framed structure         RCC slab


                                                           Problem-1 /18
    SAP model – (Home work 1- Problem 2)

                                 I
                 B
       L                     G
                                     E                D
J            H
                         F                   A

                                         K



                     C




                                                 Problem - 2 /19
                    Load distribution


        C                                      J

2.4 m
                    F              H
        K                                          L
                        Elevator
2.4 m                     shaft

        A                                      B
                    E              G
2.4 m

        D                                      I

            2.4 m       1.8 m          1.8 m


                                                       Problem - 2/20
Problem 2 – SAP Model (Loading)




                                  Problem - 2/21
Problem 2 – SAP Global check (Column reactions)




                                                    Column D



                         Global Check:
                         Sum of reaction in four columns: 338 kN
                         Total load applied             : 338 kN




                                                      Problem - 2 /22
    SFD and BMD of beam AB
           22626            22350




A                                   B

      Loading diagram
A
                                    B


      Shear force diagram
A
                                        B



     Bending moment diagram

                                    Problem - 2 /23
Problem 2 – SAP (Shear force diagram)




                                        Problem - 2 /24
Problem 2 – SAP (Bending moment diagram)




                                           Problem - 2 /25
Problem 2 – SAP (Deformed shape)




                                   Problem - 2 /26

								
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