DYNAMIC ANALYSIS DES IGN AND DETAILING OF … · concrete reinforcement and detailing). ... Al-Manaseer A. Structural Concrete Theory and the Design, Fifth Edition ed., New Jersey:

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International Journal of Civil Engineering and Technology (IJCIET)Volume 8, Issue 1, January 2017, pp.

Available online at http://www.iaeme.com/IJCIET

ISSN Print: 0976-6308 and ISSN Online: 0976

© IAEME Publication Scopus

DYNAMIC ANALYSIS DES

OFFICE BUILDING BY U

PG Student, Department of Civil

K L University, Vaddeswaram, Andhra Pradesh, India

Assistant Professor Department of Civil Engineering,


ABSTRACT

Objective: The main aim in this research is to analyze and de

STRAP. Methods: The design engages with load calculations manual analysis and software

analyzes the whole structure by following the Indian standards and designed based on limit state

approach. Which focuses mainly on stren

STRAP features the state of art user borders, visualization tools, powerful analysis and the design

supports with the advanced FEM and dynamic analysis capability, analysis and the design to the

visualization, Model generation and finally result confirmation, STRAP is the from professional’s

choice. Findings: In an earlier stage of analysis the dead load, live load and the other loads are to

be considered in STRAP. The materials were specified and

may also to find the deflection of the various structural members under that the given loading

combinations. The design of structure is to reliant upon that the minimum requirements as

suggested in IS Codes. The least a

were are covered by the way of using design loads which are to be considered for DL, IL & other

external loads. The structure can required to withstand STRAP was used to analyze and design

work on the structure being calculated the

and structure modeling. As per IS: 456

counteract the defined structural practices.

standard specifications specified in the standard code of practice IS: SP: 34 (Handbook on

concrete reinforcement and detailing). This satisfies all the necessary requirements specified in the

code of practice IS: 456:2000.

Key words: STRAP, IS: 456-2000, Dynamic Analysis, Office Building

Cite this Article: B. Kiran Kumar and P. Venkata Sarath

of Office Building By Using Strap

8(1), 2017, pp. 653–661.

http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=1

IJCIET/index.asp 653

International Journal of Civil Engineering and Technology (IJCIET) , pp. 653–661, Article ID: IJCIET_08_01_076

http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=

6308 and ISSN Online: 0976-6316

Scopus Indexed

DYNAMIC ANALYSIS DESIGN AND DETAILING OF

OFFICE BUILDING BY USING STRAP

B. Kiran Kumar

PG Student, Department of Civil Engineering,


P. Venkata Sarath



The main aim in this research is to analyze and design a G+1 office building using

The design engages with load calculations manual analysis and software


approach. Which focuses mainly on strength and serviceability criteria as per IS code regulations.



isualization, Model generation and finally result confirmation, STRAP is the from professional’s

In an earlier stage of analysis the dead load, live load and the other loads are to

STRAP. The materials were specified and cross-sections of beam and column



suggested in IS Codes. The least amount of necessities implementing to the building safety which



on the structure being calculated the shear force, bending moment, reinforcement detailing

and structure modeling. As per IS: 456-2000 the minimum respective challenges are made to

counteract the defined structural practices. Novelty: The detailing is don



code of practice IS: 456:2000.

2000, Dynamic Analysis, Office Building.

B. Kiran Kumar and P. Venkata Sarath, Dynamic Analysis Design and Detailing

of Office Building By Using Strap. International Journal of Civil Engineering and Technology


[email protected]

&IType=1

IGN AND DETAILING OF

SING STRAP




sign a G+1 office building using

The design engages with load calculations manual analysis and software


gth and serviceability criteria as per IS code regulations.



isualization, Model generation and finally result confirmation, STRAP is the from professional’s

In an earlier stage of analysis the dead load, live load and the other loads are to

sections of beam and column we



mount of necessities implementing to the building safety which



force, bending moment, reinforcement detailing

2000 the minimum respective challenges are made to

The detailing is done according to the



Dynamic Analysis Design and Detailing

International Journal of Civil Engineering and Technology,



1. INTRODUCTION

The positions of the structural elements should be such that, they should not interrupt the architectural

plan. The positions of the column are selected such

Beams should be placed beneath almost every wall depending up on the load. Extra care should be taken

while placing beams in halls. After finalizing the element positions, spans of elements are obtained.

prepared ground floor plan contains a reception, working area, dining hall, manager room and washes area.

The first floor contains a conference hall, stationary room, working area, officer room and washes rooms

Design modules are essential to

sections. To focus mainly on in dynamic

Response Spectrum Analysis calculations by considering the codes and time history response

as well. The main objective to learn using STRAP is almost absent. The flowchart of the program is

to the analysis and design process performed by manually

As per the standards the setbacks for the building are taken 4 meters on the

other sides of the plot. All the External walls are kept 230mm and the walls which come inside are kept

115mm. Doors and windows are provided as per the requirement. The stair case is provided on the outside

of the building which rises up to the level of 6 meters. The stair case is provided 5 x 2.7 and each flight

width is provided 1.2m. The tread is 300 mm and rise is 150 mm

B. Kiran Kumar and P. Venkata Sarath



plan. The positions of the column are selected such that they merge with walls and still be economical.


while placing beams in halls. After finalizing the element positions, spans of elements are obtained.


The first floor contains a conference hall, stationary room, working area, officer room and washes rooms

Design modules are essential to execute RCC, PSC, and structural steel like hot rolled and built up

sections. To focus mainly on in dynamic effects, STRAP can also do the modal analysis and Seismic

Response Spectrum Analysis calculations by considering the codes and time history response

as well. The main objective to learn using STRAP is almost absent. The flowchart of the program is

to the analysis and design process performed by manually2.

As per the standards the setbacks for the building are taken 4 meters on the



h rises up to the level of 6 meters. The stair case is provided 5 x 2.7 and each flight

width is provided 1.2m. The tread is 300 mm and rise is 150 mm3.

Figure 1 Ground floor Plan

Figure 2 Centre line drawing

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that they merge with walls and still be economical.


while placing beams in halls. After finalizing the element positions, spans of elements are obtained. The


The first floor contains a conference hall, stationary room, working area, officer room and washes rooms1.

execute RCC, PSC, and structural steel like hot rolled and built up

effects, STRAP can also do the modal analysis and Seismic

Response Spectrum Analysis calculations by considering the codes and time history response calculations

as well. The main objective to learn using STRAP is almost absent. The flowchart of the program is alike

As per the standards the setbacks for the building are taken 4 meters on the front, and meter on all the



h rises up to the level of 6 meters. The stair case is provided 5 x 2.7 and each flight

Dynamic Analysis Design and Detailing of Office Building by Using Strap

http://www.iaeme.com/IJCIET/index.asp 655 [email protected]

2. METHODOLOGY

2.1. Working with Strap

Definition of the simple plane frame, using the strap’s model wizard library. strap contains a library of

standard structures that was enables the user to easily and the quickly defining the model geometry and

loads by entering a small number of parameters. The library can extended to include that the additional

models types. Utilization of “copy” feature for the defining diagonals in the upper stories. Strap’s copy

commands are powerful and sophisticated. The program refrains duplicating the existing beams. In

example, the program will duplicate only the diagonals and not the other existing members. (Beams and

columns)4.

2.2. Generation of Structure

• The structure is generated using the Graphical User Interface.

The structure is nothing but the combination of nodes and elements with specified distance with the

help of co-ordinates.

• The nodal distances are obtained from center line drawings.

The final element spans are obtained from the finalized architectural plan. Double nodes can cause

problems in the structure while running analysis. Properties of elements are changed according to the

moments obtained. Member capacities are maintained to be within the prescribed value. Reinforcement

bars minimum to maximum are specified. Grade of concrete and steel are specified to meet the

requirements of the market availability. Cover is provided to the members which may vary with the type of

member and its duties. The member parameters and the cross-section dimensions are managed to meet the

requirements5. Grouping of elements are done for minimizing the number of types of elements to minimize

the confusion in execution6.

Figure 4 Generated framed structure Figure 5 Generation of Properties




Figure 6 Self Weights Applied

Figure 7 Interior wall loads Applied

Figure 8 Exterior wall loads Applied

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Dynamic Analysis Design and Detailing of Office B


3. ANALYSISNG THE STRUCTURE

Solving the structure performs all the calculations and gives the behavior

combinations. The design of reinforcement is done based on that behavior. Deflections, moments, shear

force, etc are checked to be within the permissible limits.



Figure 9 Slab and Live load Applied

Figure 10 Parapet wall load Applied

RUCTURE

Solving the structure performs all the calculations and gives the behavior of the elements in those specified


force, etc are checked to be within the permissible limits.

y Using Strap

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of the elements in those specified





Figure 11 Deflections of the elements

Figure 12 Deflections on a single floor

Figure 13 Deflections of a single frame

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Dynamic Analysis Design and Detailing of Office B


4. RESULTS

After specifying the design parameters in to the program, analysis is done by doing all the necessary

calculations. An output file with reinforcement details and their posi

exceeding of allowable deflection, reinforcement, moments are eliminated and made economical. The slab

analysis details are mentioned clearly with moments in all different directions x, y, z.




calculations. An output file with reinforcement details and their positions are obtained. Errors like



Figure 14 Detailed Drawings of Columns

y Using Strap

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tions are obtained. Errors like




5. DETAILED DRAWINGS

The detailed drawings are drawn according to the reinforcement obtained by STRAP and grouping is done

according to the standards and kept as economical as possible. These are the drawings which are verified

by the site engineer and instructed to the junior engineers to follow the instructions in the drawing to

construct the structure. These drawings should be made according to the standards provided by the code

books, they play a vital role in the understanding the g

represent the design to the workers.

6. CONCLUSION

STRAP can compute the reinforcement detailing required for kind of structural section. The program

consists of number of the ordinates which are to be designed based on Indian standards IS: 456

Structural elements like beams considered based on shear, bending and torsion. Tensile bending stress at

the bottom of the beam creates maximum sagging (simply supported) and ten

face crates hogging (cantilever) and these bending moments were calculate for all the active load cases at

each above mentioned sections. Every sections are designed to resist both of these maximum sagging and

the hogging moments. Instead of singly reinforced section doubly reinforced beams are to be considered

for rectangular beams. Shear forces and torsional moments are resisted by providing shear reinforcement.

Calculation of shear strength at different sections with and w

strap program. Shear forces are balanced by providing Two

be provided along the length of the beam which contains shear and bending. Design of column based on

force acting axially and biaxial moments at the ends. Reinforcement is to be calculated from the active load

process. Critical load which creates a maximum reinforcement yielding. Columns are to be designed as

Square columns and the designed reinforcement should b

under the biaxial moments and detailed rebar is required for the other two faces of the section under uni

axial moment.



5. DETAILED DRAWINGS



ite engineer and instructed to the junior engineers to follow the instructions in the drawing to


books, they play a vital role in the understanding the given specifications and the language used to

represent the design to the workers.

Figure 15 Detailed Drawing of Beams


he ordinates which are to be designed based on Indian standards IS: 456


the bottom of the beam creates maximum sagging (simply supported) and tensile bending stress at the top



ents. Instead of singly reinforced section doubly reinforced beams are to be considered


Calculation of shear strength at different sections with and without reinforcement is identified by using

strap program. Shear forces are balanced by providing Two-legged stirrups. Shear reinforcement should


ting axially and biaxial moments at the ends. Reinforcement is to be calculated from the active load


Square columns and the designed reinforcement should be spread on each of side equally of the sections

under the biaxial moments and detailed rebar is required for the other two faces of the section under uni

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ite engineer and instructed to the junior engineers to follow the instructions in the drawing to


iven specifications and the language used to


he ordinates which are to be designed based on Indian standards IS: 456-2000.


sile bending stress at the top



ents. Instead of singly reinforced section doubly reinforced beams are to be considered


ithout reinforcement is identified by using

legged stirrups. Shear reinforcement should


ting axially and biaxial moments at the ends. Reinforcement is to be calculated from the active load


e spread on each of side equally of the sections

under the biaxial moments and detailed rebar is required for the other two faces of the section under uni-


http://www.iaeme.com/IJCIET/index.asp 661 [email protected]

REFERENCES

[1] Maziar Izadbakhsh, Alireza Rezvani, Majid Gandomkar, Sohrab Mirsaeidi. Dynamic Analysis of PMSG

Wind Turbine under Variable Wind Speeds and Load Conditions in the Grid Connected Mode. Indian

Journal of Science and Technology. 2015 July; 8-14, 1-9.

[2] Hassoun M N, Al-Manaseer A. Structural Concrete Theory and the Design, Fifth Edition ed., New

Jersey: John Wiley & Sons, Inc., 2012.

[3] IS 875 (Part1), Dead loads, unit weights of the building material and stored material (second revision),

New Delhi 110002: Bureau of Indian Standards, 1987.

[4] IS 875 (Part2), Imposed loads (second revision), New Delhi 110002: Bureau of Indian Standards, 1987.

[5] IS 456, Plain and Reinforced Concrete Code of Practice (fourth revision), New Delhi 110002: Bureau of

Indian Standards, 2000.

[6] IS: SP: 34 Handbook on concrete reinforcement and detailing, New Delhi 110002: Bureau of Indian

Standards, 1987.

[7] Anusha Kudumula, Dr. Vaishali G Ghorpade and Dr. H. Sudarsana Rao, Seismic Performance of RC

Framed Buildings Under Linear Dynamic Analysis. International Journal of Civil Engineering and

Technology , 8(1), 2017, pp. 09–16.

[8] Pradeepa. S, Gokul Raj. D and Divya M.R, A Review on Cost Assessment of Conventional Steel

Structure and Square Tubular Sections Using Force Co-Efficient Method. International Journal of Civil

Engineering and Technology, 7(4), 2016, pp.242–245.

DYNAMIC ANALYSIS DES IGN AND DETAILING OF … · concrete reinforcement and detailing). ... Al-Manaseer A. Structural Concrete Theory and the Design, Fifth Edition ed., New Jersey:

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