This document discusses the stability of high-rise buildings. It defines high-rise buildings and describes their structural systems, which must withstand both vertical gravity loads and lateral loads from wind and earthquakes. Stability becomes more important with increasing building height. Factors that affect stability include seismic forces at the base and wind loads higher up. The document outlines methods to stabilize structures against wind loads, noting wind speed increases with height and causes both static and dynamic effects that structures must withstand.
Composite construction or Composite Structure/FrameAbdul Rahman
Composite structure of steel and concrete has been explained under this ppt with examples, type of structural members, advantages and comparison with other structures like R.C.C structure and Steel structures.
Basics of earthquake & structural and non structural guidelines for building ...Bhasker Vijaykumar Bhatt
The presentation covers the scenario post a hazard of Earthquake turned into a disaster. Further, it includes the basic terminology, dynamics of EQ event, and suggests remedial practices for structural and non-structural elements of a building. Purpose the compilation is to sensitize learners.
Diagrid Structures: Introduction & Literature SurveyUday Mathe
Diagrid is a structural system typically used for tall buildings. In this slide you will be introduced to diagrid system, various terminologies and current researches in diagrid structural environment.
A presentation that explains the various systems and techniques of employing steel and concrete to support long span structures. The range varies from conventional beams, to trusses and portal frames.
Tube structures and its type with comparison .Udayram Patil
Hollow tube section always provide greater strength. So the same concept is applied to the building. Tubed system is designed to act like a three dimensional hollow tube structure which result in increased load resistance .
Prestressed concrete structures and its applications By Mukesh Singh GhuraiyaMukesh Singh Ghuraiya
1. What is Prestressed??
2. Principle of Prestressed
3. Method of prestressing
4. Prestressed concrete structures
5. Advantages/application of Prestressed concrete
6. Disadvantages of Prestressed concrete
7. Comparison of RCC and Prestressed Concrete Flat Slabs
The bundled tube structure meant that "buildings no longer need be boxlike in appearance: they could become sculpture." Hybrids. Hybrids include a varied category of structures where the basic concept of tube is used, and supplemented by other structural support(s).
framed tube structure
structure tube furniture
structure tube canada
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tube structure buildings
tube framed buildings
interesting civil engineering topics
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seminar topics pdf
best seminar topics for civil engineering
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Composite construction or Composite Structure/FrameAbdul Rahman
Composite structure of steel and concrete has been explained under this ppt with examples, type of structural members, advantages and comparison with other structures like R.C.C structure and Steel structures.
Basics of earthquake & structural and non structural guidelines for building ...Bhasker Vijaykumar Bhatt
The presentation covers the scenario post a hazard of Earthquake turned into a disaster. Further, it includes the basic terminology, dynamics of EQ event, and suggests remedial practices for structural and non-structural elements of a building. Purpose the compilation is to sensitize learners.
Diagrid Structures: Introduction & Literature SurveyUday Mathe
Diagrid is a structural system typically used for tall buildings. In this slide you will be introduced to diagrid system, various terminologies and current researches in diagrid structural environment.
A presentation that explains the various systems and techniques of employing steel and concrete to support long span structures. The range varies from conventional beams, to trusses and portal frames.
Tube structures and its type with comparison .Udayram Patil
Hollow tube section always provide greater strength. So the same concept is applied to the building. Tubed system is designed to act like a three dimensional hollow tube structure which result in increased load resistance .
Prestressed concrete structures and its applications By Mukesh Singh GhuraiyaMukesh Singh Ghuraiya
1. What is Prestressed??
2. Principle of Prestressed
3. Method of prestressing
4. Prestressed concrete structures
5. Advantages/application of Prestressed concrete
6. Disadvantages of Prestressed concrete
7. Comparison of RCC and Prestressed Concrete Flat Slabs
The bundled tube structure meant that "buildings no longer need be boxlike in appearance: they could become sculpture." Hybrids. Hybrids include a varied category of structures where the basic concept of tube is used, and supplemented by other structural support(s).
framed tube structure
structure tube furniture
structure tube canada
tube structural system
tube structure design
tube frame building kits
tube structure buildings
tube framed buildings
interesting civil engineering topics
civil engineering topics for presentation
seminar topics pdf
best seminar topics for civil engineering
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The lecture is in support of:
(1) The Design of Building Structures (Vol.1, Vol. 2), rev. ed., PDF eBook by Wolfgang Schueller, 2016: chapter 4.
(2) Building Support Structures, Analysis and Design with SAP2000 Software, 2nd ed., eBook by Wolfgang Schueller: chapter 13.
Video Lecture: https://youtu.be/zoj6DYMvg2I
Structural System in High Rise building or Tall Building
Emporis standards-
“A multi-story structure between 35-100 meters tall, or a building of unknown
height from 12-39 floors is termed as high rise.
The International Conference on Fire Safety –
"any structure where the height can have a serious impact on evacuation“
Massachusetts, United States General Laws –
A high-rise is being higher than 70 feet (21 m).
Buildings higher than 100m is termed as skyscraper according to emporis.
Buildings 300m or higher is termed as super tall and buildings 600m or taller is termed as mega-tall.
Study on Effect of Wind Load and Earthquake Load on Multi-storey RC Framed Bu...IJSRD
Now a day the increase in the construction of tall buildings, residential and commercial sector, and the new trend are towards taller and slender structures. Though the effect of wind and earthquake, forces becoming important for every structural designer to know. Every engineer is facing with the problem of providing stability, strength for loads like lateral loads. That’s the reason wind as well as earthquake loading have become the influential factors in tall buildings. Loads that are lateral loads play important role for drift. The drift must be taken into consideration for tall structure. The above mentioned are some of the key issues which affect the behavior of structure and economy of the building. This thesis focuses the effects of lateral loads on medium and tall buildings the storey forces, displacements, storey shear, story drift every part of are analyzed on every level of height on the building, Indian codal provision gives us the basic wind speed at 10m height for some important cities/towns. However it does not provide for all the cities in India. In the following work attempt is made to find the effect of lateral loads i.e. wind load and earth quake loads for various models having shear walls and without shear wall. For the study a symmetrical building plan is used with 16 storeys and 31 storeys are analyzed and designed by using structure analysis software tool ETABS-2013. The study also includes the determination of base shear, displacement, storey drift, storey forces and the results are compared with them. These parameters have also considers the effect of shear wall. In order to design a structure to resist wind and earthquake loads, the forces on the structure must be specified.
Seismic Retrofitting and repairs and rehabilitationsKumarS250747
Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion or soil failure due to earthquakes.
There are several techniques which have come forward nowadays by which an existing structures can be modified and make it less prone to earthquakes.
There is no such technique to make the structure fully earthquake proof but seismic performance can be greatly enhanced through proper initial design or subsequent modifications.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
2. Introduction to High-Rise Buildings
The Structural System Of High-Rise Buildings
Stability of High-Rise Buildings
Stabilizing the Structure Against Wind Loads
TOPICS TO BE DISCUSSED
3. What is a High-Rise Building?
Emporis Standards defines a high-rise as "A multi-story structure between 35–100
meters tall, or a building of unknown height from 12–39 floors.“
4. The International Conference on Fire Safety in High-Rise Buildings defined a high-
rise as "any structure where the height can have a serious impact on evacuation.”
5. A building is, from a structural engineer’s perspective, to be considered a tall
building when, due to its height, the lateral forces suffered by the structure play a
significant role in the design.
8. The Structural System Of High-Rise Buildings
The structural system of high-rise buildings is designed to cope with the vertical
gravity loads and lateral loads caused by wind or seismic activity.
9. The foundations of high-rise buildings must sometimes support very heavy gravity
loads, and they usually consist of concrete piers or piles that are sunk into the
ground.
10. The most important factor in the design of high-rise buildings, however, is the
building’s need to withstand the lateral forces imposed by winds and potential
Earthquakes. Most high-rises have frames made of steel or steel and concrete.
Their frames are constructed of columns (vertical-support members) and beams
(horizontal-support members). Cross-bracing or shear walls may be used to provide
a structural frame with greater lateral rigidity in order to withstand wind stresses.
11. Stability Of High-Rise Buildings
As height increases, the rigidity and stability requirements become more important,
and they are often the dominate factors in designing.
Due to P-Δ effect, in which the eccentricity of gravity load increases to such a
magnitude that it brings about to collapse of the columns as the result of axial
loads. Therefore, an important stability criterion is to assure that the predicted wind
loads will be below the load corresponding to the stability limit.
The second consideration is to limit the lateral deflection to a level that will ensure
that architectural finishes and partitions are not damaged.
12. Factors Affecting The Stability Of High-Rise Buildings
The factors that affect the stability of a high-rise structure as a whole are the lateral
loads which include:
Seismic forces (Earthquake Loads) at the base of structure.
Wind loads at the top (Higher stories) of the buildings.
13. STABILIZING THE STRUCTURE AGAINST WIND LOADS
Wind is essentially the large scale horizontal movement of free air. It plays an
important role in the designing of tall structures because it exerts loads on building.
It is a phenomenon of great complexity because of the many flow situations arising
from the interaction of wind with structures.
14.
15. EFFECT OF WIND WITH INCREASE IN HEIGHT:
Wind is caused by air moving from high pressure to low pressure. Its direction is
influenced by the earth’s rotation. Near the earth’s surface, the motion is opposed
and the wind speed is reduced by surface friction. At the surface the wind speed
reduces to zero and then begins to increase with height, and at some height known
as the gradient height, the motion may be considered to be free from earth’s
frictional influence and will attain its “gradient velocity.”
16. WIND EFFECTS ON STRUCTURES
Wind produces two different types of effects on tall buildings: static and dynamic
STATIC:
Structurally, static effect is a term of analysis independent of time and Static wind
effect primarily causes elastic bending and twisting of structure.
DYNAMIC:
But dynamic analysis is an attempt to take into account how the system responds to
the change through the period of time. For tall, long span and slender structures a
dynamic analysis of the structure is essential. Wind gusts cause fluctuating forces
on the structure which induce large dynamic motions, inducing oscillations.
Editor's Notes
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