Week 3 Challenge

1Q

1.1 State the primary load cases to be considered for design.

•       DEAD LOAD
•       LIVE LOAD
•       WIND LOAD
•       EARTHQUAKE LOAD
•       TEMPERATURE LOAD
•       IMPACT LOAD             etc

   1.2 What is One – Way slab?

          LONGER SPAN LX

          SHORTER SPAN LY

           if  LX/LY  IS GREATER THAN 2 IT IS ONE WAY SLAB.

   1.3 What is the value of unit weight of structural steel and soil?

           unit weight of structural steel 

           unit weight of  soil

    1.4 Name few sections that can be defined using Properties tab in STAAD Pro.

         REINFORCED CONCRETE BEAM AND COLUMN AND STEEL BEAM AND COLUMN OF DIFFERENT SECTION

           I SECTION CHANNEL SECTION ANGLES BUILT UP SECTION

   1.5 Define Primary Beams.

         MEMBERS JOINING COLUMNS ARE PRIMARY BEAMS OR MAIN BEAMS

     2. 1. State the factors and parameters that influence the design pressure intensity of a high-rise building.

2Q

 2.1 State the factors and parameters that influence the design pressure intensity of a high-rise building.

1. Strength and rigidity.
2. Velocity & Density of air.
3. Stability and durability of materials.
4. Height above the ground level.
5. Shape and Aspect ratio of the building.
6. Topography of the surrounding ground surface.
7. Angle of wind striking the building.
8. Solidity ratio or opening in the structure.
9. Suscestiblity of the structural system by the dynamic effected by the wind.

 2.2 Mention the load transfer process of a Reinforced Concrete Building.

        01 LOAD on SLAB of structure - beams - colomns - footings

        02 load flow path of RCC building

 3Q

3.1  Differentiate One-Way and Two way slabs. Elaborate each slab type.

 3.2 Explain the concept of secondary beams with proper sketch.

 3.3 Mention the Primary load cases.
              a. State the Indian Standards for each load case
              b. Detail the parameters of each load case
              c. Brief each load case

1. Dead loads IS 875 Part-1
2. Imposed loads IS 875 Part-2
3. Wind loads IS 875 Part-3
4. Snow loads
5. Earthquake loads IS 893 Part-1
6. Special loads IS 893

4.4 Detail the steps involved in assigning Properties and Support to a model using STAAD Pro sequentially.

 GOTO PROPERTIES > define properties > select section database(TYPE F SHAPE)

               > Assign properties to selected beams or columns.

             GOTO supports > CREATE > select SUPPORT > Add > Assign support.

 5. Brief the steps to be followed to create and assign secondary beams in STAAD Pro

 SECONDARY BEAMS are modelled first and property is assigned to BEAMS 

 
Practical 
1. Calculate the wind pressure for the given building
    a. Building Dimension : 20m x 30m x 20m height RCC
    b. Building usage : Hospital block in city centre
    c. Location : Darjeeling
2. Calculate the Dead load and Live load for the above building with reference to IS standards ( assume suitable sections )