Calculation of Stiffness in Structural elements

Aim: The given G+3 hostel building is analysed and designed for the given data.  Grid assignments: Storey heights: Material assignment: Section properties: Beam: Column: Slab: Loaad pattern: Mass source: Define Response spectrum: Defining load case: Load combinations: Modelling and load assignments: SIDL:  LL: Wall load…

 Aim: To model and analyse the given building. Procedure : Conceptual plan layout: Grids and storey heights: Material property:  Section property: Column: Beam : Slab: Wall: Modelling of beam,column,walls and slabs: Pier assignments: Based on the number of shear walls the pier assignments are done   Load…

Aim: Foundation design using SAFE. Procedure : Unit definition: Input for the footing design: Subgrade modulus of soil = (Factor of safety x SBC) / settlement of soil SBC = 150 kN/`m^2` FOS for footing = 3 Settlement of soil = 50mm Subgrade modulus = (3 x 150)/50 = 9000 kN/`m^2` Column size = 400mm x 400mm Footing depth…

Aim: To manually calculate the isolated footing for the given details.  

1) To analyse and design the shear wall : Check the model for errors Run and analysis the model . Check whether pier assigned in the model : Click the below options for shear wall design: Vertical reinforcement for the shear wall : Horizontal reinforcement : Boundary zone width:   Reinforcement details : Provide vertical…

1) To design and detail RC column in Etabs : Procedures: Check the model Run analyse Start concrete design Longitudinal reinforcement requirement : Shear reinforcement : Shear reinforcement as per codal IS 13920: Column details for column along GL 3A : Longitudinal reinforcement = 8#32mm with confining reinforcement H8@100mm C/C…

1) Analysing of the model is done Frame design preferences: Design --> design combination Design --> start design check Analysis and design info matches for all members Display design info : Longitudinal reinforcement : Display of design of shear reinforcement : Reinforcement details along grid 3 : Longitudinal reinforcement:…

                        1) Grade of concrete - M30  Grade of steel - Fe415   Model A : Model B: Model C : Model D : Model E : Model F : Model G : Model H : Model J: Model K : Effect of stiffness on T for buildings E & F as well as G & H :  …

1) Objeactive of this project is to model and analyse 25 storey building in Etabs with the given data and verify results as per IS 1893. PROCEDURES: 1.  For grid label and grid ID: 2.Storey height and storey level 3.Material property: Steel Concrete Beams and column sizes: Column sizes: Slab property: Load pattern:…

1) 1)   (a)   (b)              (c) Restraint of floor shrinkage  Shear walls are constrained at four edges which will reduce floor shrinkage  Floor shrinkage is less in the shear wall edges. Floor shrinkage will be more in this arrangement. Lateral stiffness Shear walls are provided only at the corners which will impact…

1)  Symmetry : If we divide the structure in X axis and Y axis the column positioning is symmetrical in both axis. Therefore mass and stiffness is distributed symmetrical in both axis arrangement of strutural elements is good in this arrangement. Redundancy: Perimeter columns are distributed unevenly in the above arrangement…

1. Case 1: Taking unit displacement u1 = 1   Translation of 2 columns = 2 x `(12EI)/h^3` Beam translation = `(EI)/h^2` Case 2: Taking unit displacement u2=1; u1=u3=0 Stiffness coefficient of right end column rotation due unit displacement = 6EI / `h^2` Stiffness coeefficient of left end column rotation due to unit displacement…

1) a. Observation: Beam concrete is spalled at the bottom and in beam-column joints location. Reinforcement is also visible in the picture. Mode of failure: Beam column joint detailing is not done as per ductile design. Lateral force is not considered during the design of beam and it leads to crack formation at the junction.…

1.Pre-composite dead loads: Superimposed Dead Load existing prior to concrete deck hardening. Footfall loadings: Structural vibrations which result from human footfalls. Wet & dry concrete load & construction loads are taken from the comflor deck design report: Design of composite columns: Demand capacity ratio…

For the below highlighted column manual axial load is calculated Area(m^2) self wt of slab LL load on column 19.75 3.75 2 1036.875 Self wt of column     131.25 Total load on column     1168.125