it is abiut moment resisting frame structure.

1. Final Year Project Presentation
Project Supervisor
Muhammad Ahmad Adnan
Group Members:
Name ID’s
Kashif Hameed F2019132014
Ali Raza F2019132001
Nader Shah F2019132033
Hassan Khaliq F2019132029
Omair Khan F2018132073

2. Design of Reinforced Concrete Frame for Seismic Loading
Introduction:
Muzaffarabad

3. Plan View of Hospital and Facility Center
(Structure to be Design)

4. Methodology:
• Preliminary design by using gravity loads to find the dimensions of the different components of the
structure.
• Analyze the structure approximately.
• Calculate the seismic forces (Base Shear, Story Shear) of the structure.
• Apply different seismic load combinations.
• Perform computer analysis to calculate the member forces.
• By using computer results, again design the structure for seismic loads.

5. 3D Simulated Building Model

6. • Loads
Gravity Loads
Seismic Loads
• Load Combinations
1.4D
1.2D + 1.6L
1.2D + Ev + Eh + L + 0.2S
1.2D + Ev + Emh + L + 0.2S
0.9D – Ev + Eh
0.9D – Ev + Emh
Ev = Effect of seismic load in the vertical direction
Eh = Effect of seismic load in the horizontal direction
Emh = Effect of seismic load in the horizontal direction including over-strength factor

7. Seismic Load Combinations:
1.2D + 1Ehx + 0.3Ehy + L + 0.2S
1.2D + 0.3Ehx + 1Ehy + L + 0.2S
1.2D + 1Eh(-x) + 0.3Eh(-y) + L + 0.2S
1.2D + 0.3Eh(-x) + 1Eh(-y) + L + 0.2S
0.9D + 1Ehx + 0.3Ehy
0.9D + 0.3Ehx + 1Ehy
0.9D + 1Eh(-x) + 0.3Eh(-y)
0.9D + 0.3Eh(-x) + 1Eh(-y)
x = East to West
y = North to South
-x = West to East
-y = South to North
Seismic Load Directions:
100% East to West & 30% North to South
30 % East to West & 100% North to South
100% South to North & 30% West to East
30 % South to North & 100% West to East

8. Deformed Shape of a Structure under Gravity Loads

9. Flexural Design of Beam using Gravity Loads
BMD taken from Software
Beam Reinforcement Details
Reinforcement Detail of Shorter Side Beams
Reinforcement Detail of Edge Beams

10. Design of Column for Gravity Loads
Axial Load Diagram
Column Reinforcement Details
• Uni-Axial Bending
• Biaxial Bending
Bresler’s Reciprocal Load Equation

11. Seismic Analysis
S1 = 0.3785g
Ss = 1.2528g
PGA = 0.6008g
S1 = Long-period Spectral Acceleration
Ss = Short-period Spectral Acceleration
PGA = Peak Ground Acceleration
Site Class
The building site is hard rock which is site class B according to ASCE 7-16.
Risk Category:
On the basis of the nature of occupancy, the risk classification is four.

12. Seismic Design Category (SDC):
Our structure design category is D on the basis of site class & design acceleration values(1 –s period or short
period).
Type of Structure:
The special moment resisting frame is used on the basis of SDC which resist inelastic behavior of structure
against seismic loading.
Orthogonal Combinations :
The seismic force is applied with respect to orthogonal conditions. The 100% force is applied in main
direction and 30% of that force is applied in the other direction.

13. Equivalent Lateral Force Method
Base Shear:
V = Cs × W
Cs = seismic response coefficient
W = effective weight of structure including total dead load and other loads.
V = 873.13 kips
Cs =
𝑆DS
(
𝑅
𝐼𝑒
)
SDS = Design Spectral Response Acceleration
Ie = Seismic Importance Factor
R = Response Modification Factor
𝐶𝑠 = 0.375

14. Lateral Seismic Force:
Cvx = vertical distribution factor
hi , hx = height from base to level i and x
𝑤i , 𝑤x = portion of the total effective seismic weight of the structure (w), located or assigned to level i or x
V = total design lateral force or shear at the base of the structure

15. Design Story Shear:
Fi = portion of seismic base shear, V, induced to level i
n = number of stories
Approximate period of Vibration:
T = Ct ℎ𝑛
𝑥
T = 0.4 sec
h = height of the structure from base to extreme point.
Ct , x = coefficients

16. Deformed Shape of a Structure due to Seismic Forcesoces
Deformation due to Seismic Forces

17. Design of Beam for Seismic Loading
Flexural Members of Special Moment Frames
General Requirements
1. The ductile flexural failure occurred before shear failure.
2. If factored axial compressive force Pu <
𝐴𝑔
𝑓𝑐
′
10
, then the member is considered to be
subjected to bending.
Area Ag represents the gross area of the concrete member.
3. ln ≥ 4 × effective depth (d).
4. b𝑤 /d ≥ 0.3.
5. (b𝑤) ≥ 10 in.
6. b𝑤 shall not exceed the width of supporting member (C2 + a) distance on each side
of supporting member equal to the smallest of (a) and (b):
a. Width of supporting member, C2.
b. 0.75 times the overall dimension of supporting member, C1.

18. Longitudinal Reinforcement Requirements for SMR Frame:
∅𝑀𝑛
+
≥
1
2
∅𝑀𝑛
−
(Left joint)
∅𝑀𝑛
+
≥
1
2
∅𝑀𝑛
−
(Right joint)
(∅𝑀𝑛
+
or ∅𝑀𝑛
−
) ≥
1
4
(max ∅𝑀𝑛 𝑎𝑡 𝑗𝑜𝑖𝑛𝑡)
Shear Reinforcement Requirements:
Vl =
𝑀𝑝𝑟
− + 𝑀𝑝𝑟
+
𝑙n
Vr =
𝑀𝑝𝑟
− + 𝑀𝑝𝑟
+
𝑙n
Mpr = Moment strength at the end of the beam
Vl = Design shear force at left joint of flexural member
Vr = Design shear force at right joint of flexural member
ln = Clear span of beam

19. Reinforcement Details
BMD due to Seismic Loading

20. BMD due to Seismic Loading

21. Design of Column for Seismic Loading
Special Moment Frame Members Subjected to Bending and Axial Loads
General Requirements:
The requirements of this section apply to columns and other flexural members that carry a factored axial
load >
𝐴𝑔
𝑓𝑐
′
10
. These members should satisfy both of the following conditions
1. Shortest cross-section dimension measured on a straight line passing through the geometric
centroid ≥ 12 in.
2. The ratio of the shortest cross-sectional dimension to the perpendicular dimension ≥ 0.4.

22. Longitudinal Reinforcement Requirements.
According to the ACI Code, Section 18.7.3.2, the flexural strengths of columns should
satisfy the following:
∑ Mnc = sum of nominal flexural strengths of columns framing into joint, evaluated at faces of joint
𝑀𝑛𝑏 = sum of nominal flexural strengths of the beams framing into joint, evaluated at faces of joint
This approach, called the strong column–weak beam concept ensures that columns will not yield
before the beams.

23. 0.01 ≤ 𝜌 ≤ 0.06
Interaction Diagram of Column
M2 = Minor axis moment
M3 = Major axis moment
In biaxial bending, the bending occurred in x,y plane

24. Reinforcement Details
𝑙𝑢 = Length of column
Vu = Design shear force
Mpr = Moment strength