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Reinforced Concrete Structural Design of a 15-storey Residential Building

Introduction

High-rise or tall buildings are the most influential figures in cities of the world as well as a man-made wonder that goes against the law of gravity by extending to the clouds. It expresses the uncompromising quest of humans to continue building higher (Ali and Al-Kodmany, 2012). High-rise buildings have been increasingly popular in the globe as a result of scarcity of land in densely populated regions of cities and countries as well as serving the primary role of being notable buildings and symbols in modern cities and capitals. Nevertheless, high-rise buildings are highly complex owing to the many numbers of structural elements and components as opposed to low-rise buildings. Additionally, these buildings require a high level of structural stability for design requirements and safety (Abbood, Jasim, and Weli, 2021).

Marsono, (2014) defined a tall or high-rise building as a building whose height is a major priority in its planning, design and use. Furthermore, He explained that a tall building is one whose tallness generates several conditions in the design, construction, and use when compared to other buildings. Coull and Ahmed, (1978) defined a high-rise building as a building which is noticeably higher than buildings surrounding it. Also, it has a proportion slender enough to look like a tall building. The construction of high-rise building began in ancient Rome with its four-story woody residence buildings using bricks (Farouk, 2011). According to Timler and Kulak, (1983), the construction of high-rise buildings began at the ending of the 19th century in Chicago, North America which evolved afterwards. Its possibility resulted from the inventions of the safe elevator in 1853 and the telephone in 1876 (Kishi et al., 1996) which allowed the conveyance of building materials to higher levels and communication among workers respectively. The materials used for building materials modified from wood and masonry to steel frames with lighter masonry walls. Buildings built earlier with heavy masonry walls was restricted to specific heights by its own self-weight. The emergence of steel frames led to the usage of thinner masonry as facade for weather protection and much higher buildings could be erected (Abbood, Jasim, and Weli, 2021).

Engineering Design Consultant (EDC) explicated that a tall building has a height of 35 m and above that is uniformly divided at intervals into accessible levels. The building must be erected on solid flooring and constructed over its total height through a standard process. High rise buildings or towers has a general height greater than 36 m or more than 12 stories and its utilization in several areas such as administrative, residential or in hotels. The height of these buildings can be influenced by horizontal or side loads due to wind and earthquake activities. Hence, the horizontal loads are vital in the design of these buildings and must be incorporated in its design for safety and stability. The construction of high-rise buildings keeps gaining the attention of constructors over the years. This exceptional feature in the built environment makes them vital and noticeable due to their height, conspicuousness, lucidity and dominance over other elements of the environmental landscape (Farouk, 2011).

Problem Statement

In the structural design of a building, certain requirements must be met. Some of which include safe erection of building, operation of building without uncontrolled deformation or movement that can cause fatigue and cracks of fixtures, fittings or partitions, or structural members and ultimately failure of the whole building. Structural design must also take into consideration the movements and forces due to cracks, creep, temperature, and applied loads. Furthermore, verification must be made that the design is actualizable within acceptable manufacturing tolerances of the materials and economic viability. Ultimately, occupants’ convenience as well as not impeding the adaptation and functionality of architectural and building services such as to ventilation, electricity, lighting, lifts etc. (Saha et al., 2021). All of these requirements are to be accounted for in this design.

Aim and Objectives

This study aims to design a reinforced concrete 15-storey residential building using structural design and drafting software.

The objectives of the project work are;

  • Objective 1: To determine the number and sizes of structural members such as slabs, beams, staircase, columns, and footings.
  • Objective 2: To determine the loadings of the structure (live load, dead load, and horizontal load).
  • Objective 3: To carry out geotechnic design (i.e., the type of foundation to be used).
  • Objective 4: To design the structure manually using British Standard and Limit State design from its foundation to the roof.
  • Objective 5: To design and detail the structure with Staad Pro, Beam Max, Prota and AutoCAD software.

Research Questions

The identified research questions for this project are provided below:

  • What are the numbers and sizes of structural members such as slabs, beams, staircase, columns, and footings required by the structure?
  • What are the design loads (live, dead load, and horizontal load)?
  • What type of foundation is best to carry the structure?
  • What is the manual design approach?
  • What is the software design approach?

Deliverables

The deliverables of this project are a project report, a complete manual design book of the structure showing reinforcements and structural members dimensions, software generated design worksheets, as well as AutoCAD sketched and detailed drawings of the structure. The design was done using British Standard codes; BS 8110 and BS 6399 codes of practice code.

Relevance

This project focuses on designing and detailing a reinforced concrete 15-storey residential building using structural design and drafting software. Manual designs are also done. The importance of tall residential buildings in the 21st century cannot be over emphasized as they don’t only meet the need for shelter by people but also have economic, aesthetic, developmental, and urbanization advantages.

Methodology

This project focuses on both secondary research as well as manual and software structural design and detailing. They are discussed below:

Secondary Research

The secondary research in this project will utilize a systematic approach (Johnson et al., 2016) to review the previous works of literature. The steps involved in the systematic review of the literature are provided below:

  • Step 1: Identify the research questions that can be used for the project.
  • Step 2: Identify the keywords that should be used to research the works of literature.
  • Step 3: Extract the journals and books that are appropriate for this project.
  • Step 4: Write the literature review chapter.

Manual Design

The manual design of the project is a major aspect of it. It will occur in the following stages:

  • Stage 1: Getting information on the structure and foundation to be used for the structure.
  • Stage 2: Carrying out structural analysis.
  • Stage 3: Deriving loading conditions, number, and sizes of structural members of the bridge.
  • Stage 4: Obtaining design moments for all members from the slabs, staircases, beams, columns, and footing.
  • Stage 5: Step by step design of individual members using Limit state design.
  • Stage 6: Obtaining reinforcements and dimensions of structural members.
  • Stage 7: Designing the foundation.
  • Stage 8: Result testing, analysis, evaluation, and optimization.

Software Design

The manual design of the project is a major aspect of it. It will occur in the following stages:

  • Stage 1: Getting information on the structure and foundation to be used for the structure.
  • Stage 2: Carrying out structural analysis
  • Stage 3: Deriving loading conditions, number, and sizes of structural members of the bridge
  • Stage 4: Drawing the structure on AutoCAD
  • Stage 5: Exporting drawings to StaadPro, Beam Max and Prota for the design of all structural members
  • Stage 6: Obtaining reinforcements and dimensions of structural members
  • Stage 7: Designing the foundation.
  • Stage 8: Result testing, analysis, evaluation, and optimization.

Evaluation

The risk assessment conducted for this project is provided in the table below:

Table 1:  Risk assessment

Risk

Impact

Mitigation Plan

Inability to meet the deadline

Low

Get an extension from the supervisor in due time

Inability to get required process inputs

Low

Refer to research institutes and skilled professionals and the supervisor for help

Inability to properly develop the process setup

Low

Refer to supervisor and professionals for help

Insufficient data

Low

Refer to journals and textbooks for help

Schedule

Table 2: Project Plan

Task Name

Start Date

End Date

Duration (Days)

Initial Research

15/01/2022

29/01/2022

14

Proposal

29/01/2022

06/02/2022

21

Secondary Research

06/02/2022

26/02/2022

20

Introduction Chapter

26/02/2022

31/02/2022

5

Literature Review Chapter

31/02/2022

10/03/2022

10

Methodology Chapter

10/03/2022

22/03/2022

12

Manual and Computer drawing

22/03/2022

22/04/2022

30

Manual Design

22/04/2022

22/05/2022

30

Software Design

22/05/2022

01/06/2022

10

Presentation 1

01/06/2022

16/06/2022

10

Checking the design

16/06/2022

26/06/2022

10

Evaluation and comparison of Results

26/06/2022

03/07/2022

7

Discussion Chapter

03/07/2022

13/07/2022

10

Evaluation Chapter

13/07/2022

18/07/2022

5

Conclusion Chapter

18/07/2022

20/07/2022

2

Project Management Chapter

20/07/2022

22/07/2022

2

Abstract and Report compilation

22/07/2022

24/07/2022

2

Report Proofreading

24/07/2022

04/08/2022

10

Presentation 2

04/08/2022

14/08/2022

10

 

References

Abbood, I., Jasim, M. and Weli, S., 2021. High Rise Buildings: Design, Analysis, and Safety: An Overview. International Journal of Architectural Engineering Technology, 8(1), pp.1-13.

Ali, M. and Al-Kodmany, K., 2012. Tall Buildings and Urban Habitat of the 21st Century: A Global Perspective. Buildings, 2(4), pp.384-423.

Coull A. and Ahmed A.K., (1978). Deflections of Framed-Tube Structures, Journal of the Structural Division 104(5) 857-862.

Farouk A., 2011. High rise buildings and how they affect countries progression, CASA E-LEADER, Zagreb, Croatia.

Johnson, D., Deterding, S., Kuhn, K.A., Staneva, A., Stoyanov, S., and Hides, L., 2016. Gamification for health and wellbeing: A systematic review of the literature. Internet interventions, 6, pp.89-106.

Kishi, N., Chen, W., Goto, Y. and Hasan, R., 1996. Behavior of tall buildings with mixed use of rigid and semi-rigid connections. Computers & Structures, 61(6), pp.1193-1206.

Marsono A.K., 2014. Tall Building System Analysis and Design, Universiti Teknologi Malaysia, Johor, Malaysia.

Saha, S., Nur Ali, M., K. Chisanga, W. and Yasin, A., 2021. Design and Analysis of Multistorey (G+14) Residential Building Using Staad.Pro & Autocad. International Journal of Scientific Research in Civil Engineering, pp.70-82.

Timler P.A. and Kulak G.L., 1983. Experimental study of steel plate shear walls, University of Alberta, Edmonton, AB, Canada, p. 112.

Last updated: Jan 24, 2022 04:39 PM

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