Modelling Building Frame with STAAD.Pro & ETABS - Rahul LeslieRahul Leslie
A basic tutorial to learn the concepts of modelling RC building in an Analysis/Design package -- STAAD.Pro & ETABS are in focus here, but concepts are applicable for any package. Good for novice in structural designing, and also B.Tech / BE / BSc (Engg) / BS students wising to do 'design of multi-storied RC building' as their final year project.
Pushover is a static-nonlinear analysis method where a structure is subjected to gravity loading and a monotonic displacement-controlled lateral load pattern which continuously increases through elastic and inelastic behavior until an ultimate condition is reached. Lateral load may represent the range of base shear induced by earthquake loading, and its configuration may be proportional to the distribution of mass along building height, mode shapes, or another practical means.
The static pushover analysis is becoming a popular tool for seismic performance evaluation of existing and new structures. The expectation is that the pushover analysis will provide adequate information on seismic demands imposed by the design ground motion on the structural system and its components. The purpose of the paper is to summarize the basic concepts on which the pushover analysis can be based, assess the accuracy of pushover predictions, identify conditions under which the pushover will provide adequate information and, perhaps more importantly, identify cases in which the pushover predictions will be inadequate or even misleading.
Modelling Building Frame with STAAD.Pro & ETABS - Rahul LeslieRahul Leslie
A basic tutorial to learn the concepts of modelling RC building in an Analysis/Design package -- STAAD.Pro & ETABS are in focus here, but concepts are applicable for any package. Good for novice in structural designing, and also B.Tech / BE / BSc (Engg) / BS students wising to do 'design of multi-storied RC building' as their final year project.
Pushover is a static-nonlinear analysis method where a structure is subjected to gravity loading and a monotonic displacement-controlled lateral load pattern which continuously increases through elastic and inelastic behavior until an ultimate condition is reached. Lateral load may represent the range of base shear induced by earthquake loading, and its configuration may be proportional to the distribution of mass along building height, mode shapes, or another practical means.
The static pushover analysis is becoming a popular tool for seismic performance evaluation of existing and new structures. The expectation is that the pushover analysis will provide adequate information on seismic demands imposed by the design ground motion on the structural system and its components. The purpose of the paper is to summarize the basic concepts on which the pushover analysis can be based, assess the accuracy of pushover predictions, identify conditions under which the pushover will provide adequate information and, perhaps more importantly, identify cases in which the pushover predictions will be inadequate or even misleading.
All of material inside is un-licence, kindly use it for educational only but please do not to commercialize it.
Based on 'ilman nafi'an, hopefully this file beneficially for you.
Thank you.
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
DESIGN AND ANALYSIS OF EARTH-QUAKE RESISTANT FOR MULTI-STORIED BUILDING ON A ...Ijripublishers Ijri
his project named as “DESIGN OF EARTH-QUAKE RESISTANT MULTI-STORIED RCC BUILDING ON A SLOPING
GROUND” involves the analysis of simple 2-D frames of varying floor heights and varying no of bays using a very popular
software tool STAAD Pro. Using the analysis results various graphs were drawn between the maximum axial force,
maximum shear force, maximum bending moment, maximum tensile force and maximum compressive stress being
developed for the frames on plane ground and sloping ground. The graphs used to drawn comparison between the two
cases and the detailed study of “SHORT COLOUMN EFFECT” failure was carried up. In addition to that the detailed
study of seismology was undertaken and the feasibility of the software tool to be used was also checked. Till date many
such projects have been undertaken on this very topic but the analysis were generally done for the static loads i.e. dead
load, live load etc, but to this the earthquake analysis or seismic analysis is to be incorporated. To create a technical
knowhow, two similar categories of structures were analyzed, first on plane ground and another on a sloping ground.
Then the results were compared. At last the a structure would be analyzed and designed on sloping ground for all possible
load combinations pertaining to IS 456, IS 1893 and IS 13920 manually.
Comparative Study on Dynamic Analysis of Irregular Building with Shear WallsEditor IJCATR
South East Asia including Myanmar is situated in secondary seismic belt. Therefore, it is necessary to pay special attention of the
effect of earthquake in designing the high-rise building. Shear walls are very common in high rise reinforced concrete building. In this study,
comparative analysis of high-rise reinforced concrete irregular building with shear walls are present. The frame type of proposed building is
used the special RC moment resisting frame. It belongs to seismic zone 4. This is why, seismic forces are essentially considered in the analysis
of this building and shear walls are also provided to resist seismic forces. Structural members are designed according to ACI Code 318-02. The
structure is analysed by using ETABS v 9.7.1 software. Load consideration is based on UBC-97. All necessary load combinations are
considered in shear walls analysis and frame analysis. In addition wind load, seismic load is considered as external lateral load in the dynamic
analysis. In dynamic analysis; Response Spectrum method is used. In this project, study of 14 storey building is presented with some
investigation which is analyzed by changing various location of shear wall for determining parameters like storey drift, storey shear and storey
moment .
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
CE 72.32 (January 2016 Semester): Lecture 1b: Analysis and Design of Tall Buildings using Commercial FE Programs
1. Dr. Pramin Norachan
Manager, Structural Engineering Unit, AIT Consulting
Affiliated Faculty, Structural Engineering, AIT
CE72.32 Tall Buildings
Modeling, Analysis and Design Tall
Buildings using Commercial Finite
Element Programs
2. 1. Introduction
2. Commercial Finite Element
Software
3. Basic Concepts of Finite
Element Software
4. Modeling, Analysis and Design
of Tall Buildings
5. Sequential Construction Cases
6. Wind Loads
7. Seismic Loads
8. Piles, Spring Supports and
Foundations
9. Design
Presentation Outline
3. To introduce commercial finite
element programs used for
analysis and design of tall
buildings.
To provide an understanding of the
concepts, techniques and
technologies in modeling, analysis
and design of RC tall buildings
using FE programs.
Objectives
4.
5. Dr. Pramin Norachan 5
Structural Mechanics
Statics Dynamics
Rigid Body Deformable Body
Statics
(Rigid Body)
Mechanics of
Materials
Structural Analysis
Matrix Structural
Analysis
Continuum or
Advanced
Mechanics of
Materials
Advanced Structures
Dynamics
(Rigid Body)
Structural Dynamics
Earthquake EngineeringWind EngineeringFinite Element
Commercial FE programs (SAP2000, ETABS, STAAD Pro, ANSYS, ABAQUS, etc.)
Rigid Body Deformable Body
UndergraduateGraduate
RC,PC, Timber, and
Steel Designs
Adv. RC,PC, and
Steel Designs
6. Dr. Pramin Norachan 6
STRUCTURAL ENGINEERING IS
THE ART OF USING MATERIALS
That Have Properties Which Can Only Be Estimated
TO BUILD REAL STRUCTURES
That Can Only Be Approximately Analyzed
TO WITHSTAND FORCES
That Are Not Accurately Known
SO THAT OUR RESPONSIBILITY WITH RESPECT TO
PUBLIC SAFETY IS SATISFIED.
Adapted From An Unknown Author
Edward L. Wilson
Professor Emeritus of Structural Engineering (The original developer of CAL, SAP and ETABS series of computer programs)
University of California at Berkeley
Three-Dimensional Static and Dynamic Analysis of Structures
A Physical Approach With Emphasis on Earthquake Engineering
7. Dr. Pramin Norachan 7
Tall Building
2 Story House
Stadium
Offshore Structure
Warehouse
Bridge
8. Dr. Pramin Norachan 8
Architectural
Functional Plans
Structural System
Trial Sections
Modeling
Analysis
Revise Sections
Member Design
Acceptable
Connection Design
Detailing
Final Design
Yes
No
Conceptual Design
Modeling and Analysis
Design and Detailing
34. Dr. Pramin Norachan 34
Design of simple and complex reinforced concrete columns
35.
36. How do the FE programs work?
Creating the model
(Pre-process)
Reporting results
(Post-process)
Analysis of the
Structure (FEM)
A, E
A, E
Displacements
Stresses
1 2 3
36
37. 1) Line Elements : Truss and Beam Elements (1D, 2D, 3D)
2) Surface Elements : Plane Stress, Plane Strain, Plate and
Shell Elements (2D, 3D)
3) Solid Elements (3D)
37
Element Types
38. Real Structures
Solid Model 3D Shell-Frame 3D Frame
2D Frame
There are various ways to model a real structure
2D
3D
38
Concepts of Structural Modeling
40. Tall Buildings Columns : Frame elements
Which types of elements will we choose to
model structures?
Floors : Plate or Shell elements
Suspension
bridges
Main Towers : Frame elements
Decks : Frame, Plate or Shell elements
Cables : cable elements
(Line structures)
(Surface structures)
(Line structures)
(Line structures)
(Line or surface structures)
Beams : Frame elements
(Line structures)
40
41. Dr. Pramin Norachan 41
EXCITATION STRUCTURE RESPONSES
Loads
- Gravity (DL, LL)
- Wind
- Earthquake
Vibrations
Settlements
Thermal Changes
(Static of Dynamic) (Elastic or Inelastic)
F = K × Δ
Displacements
Strains
Stresses
Stress Resultants
(Internal Forces)
- Axial Force
- Shear
- Moment
(Linear or Nonlinear)
DESIGN
42. Dr. Pramin Norachan 42
EXCITATION STRUCTURE RESPONSES
(Loads) (Stiffness)
F = K × Δ
(Deformation)
F
F
K
K
Δ
Δ
F K
F
K
43. Dr. Pramin Norachan Dr. Pramin Norachan
Gravity Load Lateral Load
Moment
Shear
Moment
Shear
F
F
F
F
F
F
F
F
43
46. 46
Create the structure Assign Supports Assign Material
Properties and
Section
Assign Loads
Hinge Roller
6.00
47. 47
Assign Supports Perform Analysis Perform Design
3.00 3.00
3.00
3.00
3.00
3.00
stress
strain
E, v
Concrete
Steel
(Concrete,
Steel, Others)
W
W
W
W
F
F
F
F
Fix Fix Fix
M(+) M(+)
M(-)M(-) M(-)
Draw Grid Line Define Material
Properties
Define Sections Draw the Structure
Assign Loads
1 2 3 4
5 6 7 8
1 2,3 4 5,6 7 8
61. 61
• Static Load Cases
- Dead Load (Sequential Construction : D)
- Live Load (L)
- Wind Load (W)
- Equivalent Static Load Cases (E)
Load cases are defined by the user and used for
analysis purpose only
• Dynamic Load Cases
- Response Spectrum Load Cases (E)
- Time History Load Cases (E)
Load Cases
66. 66
• Static Load Cases
- Dead Load (Sequential Construction : D)
- Live Load (L)
- Wind Load (W)
- Equivalent Static Load Cases (E)
Load cases are defined by the user and used for
analysis purpose only
• Dynamic Load Cases
- Response Spectrum Load Cases (E)
- Time History Load Cases (E)
Load Cases
77. • Static Load Cases
- Dead Load (Sequential Construction : D)
- Live Load (L)
- Wind Load (W)
- Equivalent Static Load Cases (E)
Load cases are defined by the user and used for
analysis purpose only
• Dynamic Load Cases
- Response Spectrum Load Cases (E)
- Time History Load Cases (E)
77
Load Cases
78. Dr. Pramin Norachan 78
Pressure loads on
Surrounding areas
Point loads at the
center of diaphragms
Wind Pressure Point loads at
column nodes
1 2 3
86. Dr. Pramin Norachan 86
A reinforced concrete house in Chiang Rai
collapsed due to a strong earthquake event.
87. Dr. Pramin Norachan 87
The other wood house which is
located nearby the first RC
house can stand over the
earthquake event.
There was no structural
damage which could be
observed.
The first reason is possible due
to the light weight (mass) of the
wood building, which produced
the less seismic force. The
second reason is due to the
wood structure is very flexible,
which can perform with large
deformation.
88. Dr. Pramin Norachan 88
m
2
k
u
gu
2
k c
(a) Moving Base
m
2
k
u
( ) ( )eff gp t mu t
2
k c
(b) Stationary Base
( ) ( )eff gp t mu t
Effective Earthquake Force, ( )effp t
0 ?m
0 ?gu
89. 89
Seismic Load
1) Equivalent Statics 2) Response Spectrum 3) Time History
- Static approach
- Simple regular structures
- Low-to-medium-rise
building
- Dynamic approach
- All structures
- Suitable for structural
design
- Dynamic approach
- All structures
- The most accurate analysis
- Both linear and nonlinear
- Based on fundamental
mode
- Linear analysis
- Linear analysis - Take time for analysis
- Difficult to combine the
results
90. • Static Load Cases
- Dead Load (Sequential Construction : D)
- Live Load (L)
- Wind Load (W)
- Equivalent Static Load Cases (E)
Load cases are defined by the user and used for
analysis purpose only
• Dynamic Load Cases
- Response Spectrum Load Cases (E)
- Time History Load Cases (E)
90
Load Cases
92. • Static Load Cases
- Dead Load (Sequential Construction : D)
- Live Load (L)
- Wind Load (W)
- Equivalent Static Load Cases (E)
Load cases are defined by the user and used for
analysis purpose only
• Dynamic Load Cases
- Response Spectrum Load Cases (E)
- Time History Load Cases (E)
92
Load Cases
96. • Static Load Cases
- Dead Load (Sequential Construction : D)
- Live Load (L)
- Wind Load (W)
- Equivalent Static Load Cases (E)
Load cases are defined by the user and used for
analysis purpose only
• Dynamic Load Cases
- Response Spectrum Load Cases (E)
- Time History Load Cases (E)
96
Load Cases
100. 100
The fist model is used for finding number of piles and preliminary
designing the foundations based on loads at the supports.
The model with Normal Supports
101. The Model with Piles
The second model is included both piles and
foundations. The internal forces of piles which are used
to design pile detailing can be known by perform the
linear analysis for this model. 101
102. Equivalent Spring Supports
Actual pile
embedded in soil
102
𝐾𝑣 = 𝐹𝑣 ∆ 𝑣
𝐾ℎ = 𝐹ℎ ∆ℎ
𝐹𝑣
𝐹ℎ
∆ 𝑣
∆ℎ
𝐾𝑣
𝐾ℎ
Soil represented
by lateral spring
Pile modeled
with lateral
spring
Pile deformation
under applied
loads
𝐾 = 𝐾𝑠 × 𝐴ℎ
𝐾
103. The Model with Spring Supports
This model can be used for foundation design by
exporting the foundation floor to SAFE, and it will be
used for analysis and design in the remaining works.
103
113. Dr. Pramin Norachan 113
Member Items Demand (D) Capacity (C) Design Concept
Pile Number of
piles
Service load
combinations
(including footing
weight)
Ultimate pile load → Calculate from
soil report
Safe load =
Ultimate load
SF
SF ≈ 2.0 – 2.5
RC Design Ultimate load
combinations
(including footing
weight)
D
n
C
( )n
n
n
PMM
F
V
Compression
Tension 1.0u
n
FD
C F
F
uF
114. Dr. Pramin Norachan 114
Member Items Demand (D) Capacity (C) Design Concept
Footing RC design Ultimate load
combinations
(including footing
weight)
Column
above
footing
RC design Ultimate load
combinations
(including footing
weight)
n
n
n
M
F
V
1.0u
n
FD
C F
uF
uF
1.0u
n
FD
C F
One-way shear
Punching shear
n
n
PMM
F
V
Compression
Tension
115. Dr. Pramin Norachan 115
Member Items Demand (D) Capacity (C) Design Concept
Beam/
Stair
RC design Ultimate load
combinations
Column/
Shear
wall
RC design Ultimate load
combinations
One-way
slab
RC design Ultimate load
combinations
Two-way
slab
RC design Ultimate load
combinations
n
n
n
M
F
V
1.0u
n
FD
C F
uF
uF
1.0u
n
FD
C F
n
n
PMM
F
V
Compression
Tension
uF
n
n
n
M
F
V
1.0u
n
FD
C F
uF
n
n
n
M
F
V
1.0u
n
FD
C F
One-way shear
Punching shear
116. Dr. Pramin Norachan 116
2
n s y
a
M A f d
0.85 '
s y
c
A f
a
f b
• Flexural Design
• Shear Design
n c sV V V
'
0.53c cV f bd
v y
s
A f d
V
s