To calculate the dead , live and wind load for RC residential structure and to apply them using TSD

1.) Calculate dead load in design report based on IS code and apply dead load on the model

Finishes of 50mm

Slab thickness as per the design

Brick wall load

Roofing load

AIM :

• To Calculate dead load in design report based on IS code and apply dead load on the model

PROCEDURE :

Finishes of 50mm

Slab thickness as per the design

• Brick wall load
• Roofing load

Finish loading

• finish load=0.5 X 24=1.2kN/m2

Slab loading

• slab load will be generated within the software
• brick wall+ cement plaster thickness 230mm

Brick wall loading

• GL-Ist floor-0.23X20X3.2=14.72kN/m8
• same for 1st floor-roof level

Roof loading

• roof level-(parapet wall height is 900mm and thickness 155mm)=0.155X0.9X20=2.79kN/m^3
• roofing load-finish floor-1.2kN/m2

Load applied on model :

• First we want to create a load cases
• Next we want to create a load combination with use of generate option
• Next we want to create a frame with use of frame option
• Next select the dead load on bottom of the screen
• And select the area load
• apply the dead load 1.2 Kn/m^2
• Next we want to apply the brick wall load = 14.72 kN/m^2
• The applied load as been shown below

RESULT :

• As per the question to Calculate dead load in design report based on IS code and apply dead load on the model is completed

2.) Calculate live load in design report based on IS code and apply dead load on the model

AIM :

• To Calculate live load in design report based on IS code and apply dead load on the model

PROCEDURE :

AS per IS 875 - part 3,The given live loads are:

• office=3 KN/m^2
• reception=3 KN/m^2
• meeting room/conference room-4 kN/m^3
• equipment room =10 KN/m^2
• Toilets=2 KN/m^2
• Store room= 5 KN/m^2
• Staircase =3=4 KN/m^2
• Lobby =3 KN/m^2
• Corridor=4 KN/m^2
• Roof (accessible) =1.5 KN/m^2

Load applied on model :

• Next we want to apply the imposed load
• Go select the imposed load on bottom of the screen
• As per the IS 875 rules the imposed load as been applied
• First go to the Area load under the modal tab
• Finally apply the load

RESULT :

• As per the question to Calculate live load in design report based on IS code and apply dead load on the model is completed

3.) Generate manual wind loading in the design report based IS code as per the following input

Basic wind speed = 50m/s

Terrain category 2

AIM :

• To Generate manual wind loading in the design report based IS code as per the following input

PROCEDURE :

Given Data :

• Basic wind speed = 50m/s
• Terrain category 2
• Total length of the building (l) = 19.225m
• Total width of the building (w) = 10.700m
• Total height of the building (h) = 16.8
• Class of the structure = Class A
• Life of the structure = 50 Years
• l/w = (19.225/10.700) = 1.79
• h/w = (16.8/10.7) = 1.5

STEP :1

EXTERNAL PRESSURE CO-EFFICIENT (Cpe)

As per the IS 875 Part 3, Table 5

Building height ratio

Building height ratio = 1/2<h/w<3/2

= 0.5<1.5<1.5

Therefore, the building plan ratio = 3/2 < l/w < 4

= 1.5 < 1.79 < 4

STEP :2

Finding the Factors (k1, k2, k3, k4)

k1:

From Table 1 for the basic wind speed for 50 m/s,

Risk Co- efficient, K1 = 1.0

K2 :

From Table 2,

16.8m height = terrain category 2

20m height = 1.07

by using the interpolation method,

k2 = 1.05

K3:

Topography factor, k3 = 1 (from clause 6.3.3)

K4:

Importance factor K4 = 1 (from Clause 6.3.4)

STEP :3

Vz=Vb x k1 x k2 x k3 x k4

= 50x1x1.05x1x1

= 52.5 m/s

STEP :4

Pz = 0.6 Vz^2

= 0.6 x 52.5^2

= 1653.75 N/sq.m

= 1.653 kn/sq.m

STEP :5

Wind direction (up to roof level) Y-direction :

1.) Wind direction along y- direction (Face A):

	Cpe +	Cpi -
Height of the building	16.8m	16.8m
External pressure co-efficient Cpe	0.7	0.8
Internal pressure co-efficient Cpe	0.5	-0.5
Net pressure co-efficient Cp = Cpe - Cpi	0.2	1.2
Design wind pressure, Pz	1.984	1.98
Wind load on Wall (Cp x Cz) Kn/m^2	0.4	2.38
Factor loading (1.05)	0.42	2.5

2.) Wind direction along Y- direction (Face B):

	Cpe +	Cpi -
Height of the building	16.8m	16.8m
External pressure co-efficient Cpe	-0.3	-0.3
Internal pressure co-efficient Cpe	0.5	-0.5
Net pressure co-efficient Cp = Cpe - Cpi	-0.8	0.2
Design wind pressure, Pz	1.984	1.984
Wind load on Wall (Cp x Cz) Kn/m^2	-1.587	0.4
Factor loading (1.05)	-1.667	0.42

3.) Wind direction along Y- direction (Face C&D):

	Cpe +	Cpi -
Height of the building	16.8m	16.8m
External pressure co-efficient Cpe	-0.7	-0.7
Internal pressure co-efficient Cpe	0.5	-0.5
Net pressure co-efficient Cp = Cpe - Cpi	-1.2	-0.2
Design wind pressure, Pz	1.984	1.984
Wind load on Wall (Cp x Cz) Kn/m^2	-2.38	0.4
Factor loading (1.05)	-2.5	-0.42

Wind direction (up to roof level) X-direction :

1.) Wind direction along X- direction (Face A&B):

	Cpe +	Cpi -
Height of the building	16.8m	16.8m
External pressure co-efficient Cpe	-0.5	-0.5
Internal pressure co-efficient Cpe	0.5	-0.5
Net pressure co-efficient Cp = Cpe - Cpi	-1	0
Design wind pressure, Pz	1.984	1.98
Wind load on Wall (Cp x Cz) Kn/m^2	-1.984	0
Factor loading (1.05)	-2.08	0

2.) Wind direction along X- direction (Face C):

	Cpe +	Cpi -
Height of the building	16.8m	16.8m
External pressure co-efficient Cpe	0.7	0.7
Internal pressure co-efficient Cpe	0.5	-0.5
Net pressure co-efficient Cp = Cpe - Cpi	0.2	1.2
Design wind pressure, Pz	1.984	1.984
Wind load on Wall (Cp x Cz) Kn/m^2	0.3896	2.38
Factor loading (1.05)	0.471	2.5

3.) Wind direction along X- direction (Face D):

	Cpe +	Cpi -
Height of the building	16.8m	16.8m
External pressure co-efficient Cpe	-0.1	-0.1
Internal pressure co-efficient Cpe	0.5	-0.5
Net pressure co-efficient Cp = Cpe - Cpi	-0.6	0.4
Design wind pressure, Pz	1.984	1.984
Wind load on Wall (Cp x Cz) Kn/m^2	-1.2	0.8
Factor loading (1.05)	-1.26	-0.84

RESULT :

• As per the question Generate manual wind loading in the design report based IS code is completed

4.) Based on the above calculation apply the loadings on the model

AIM :

• To Based on the above calculation apply the loadings on the model

PROCEDURE :

Load applied on model :

• So next we want apply the wind load
• Wind load cases as been created
• Next set the wind load on bottom of the screen
• And go to the area load
• set the global y on the general box
• Then apply the load on the wall panel
• Use the above calculation to apply the load
• Use the frame option select the frame 1 and 3 , frame A and E
• Then use the x and y direction
• select and use the (Wind + Y + CPI), (Wind + y - CPI), (Wind + X + CPI), (Wind + X - CPI),

Apply all direction of the load as been shown below

RESULT :

• As per the question the above calculation apply the loadings on the model is done.