EXAMPLE ON DEFLECTION CALCULATION FOR CANTILEVER BEAM SUBJECTED TO TRAPEZOIDAL LOAD,SERIES-3

“Feel the structure” MSA

Hello friends!

In continuation to Series-(I) & Series-(II) for the deflection calculation for uniformly distributed loading and triangular loading, now read this article here for the deflection calculation for a cantilever beam for trapezoidal loading.

 Here an example has been solved for a trapezoidal loading with an intensity of load “w” at the tip of beam and “2w” at the fixed end of the cantilever beam.

Download pdf from below link

Download PDF for deflection Calculation for beam subjected to trapezoidal loading

             Deflection has been calculated by Unit Load Method/Virtual Method by superposition principle. Please go through the example to understand better about the concept. As said in my previous blog,it is highly recommended to understand the fact ,why do we study trapezoidal loading and where is it’s application. Actually whenever you will design foundation for a column subjected to  axial load along with moment,base pressure diagram will not be uniform. Because base pressure at one end will be maximum ( P/A+M/Z )and at other end it will be minimum( P/A-M/Z).Where, P= Axial Force, A= Total Area, M=Bending Moment, Z= Section Modulus.Connecting with a line for maximum and minimum value of pressure will give a pressure diagram which is trapezoidal in shape. Same thing happens when you design a base plate  or anchor plate having column subjected with axial load & moment. Base  pressure is  generated from top of pedestal in the same way.

              So, it is essential to know, how to calculate bending moment and deflection at critical section for the design of footing or base plate which is subjected to axial load along with moment. In this blog, i have tried to explain same thing with an example.

Note: My blog is not for those who are addicted to software only like STAAD, ETABS, SAFE, SAP2000, ANSYS etc. and many more.People who believe in, put the value and get the result is suggested not to read my blog.It is not going to help them. Certainly, my blog is going to help a lot to those people who believe in manual calculation.To be a good structural engineer, it is better to be more focused & monomaniacal to manual calculation & check rather than software addiction.It will help you to feel the structure.

            So far, i have discussed very basic topics and step by step will gradually be moving to advanced one.Right now enjoy.

Please download attachment from the below mentioned link.

Download PDF for deflection Calculation for beam subjected to trapezoidal

Thanks

Mohammad Sohel Akhtar(MSA)

(Structural Engineer)

BEST & SELECTED EXAMPLES FOR CALCULATION DEFLECTION OF BEAM,EXAMPLE-SERIES-4

“Feel the structure” MSA

Dear friends,

Here i have attached very selected and important examples for finding out deflection for determinate beams.You will find all examples very interesting. Actually in this series, i have calculated deflection for beams subjected to couple/concentrated moment.You will understand later why these examples are important.Furthermore, i am trying to lay a foundation for you to move to the next level.For this, you need to understand how to evaluate deflection for determinate beams subjected to couple  and other loading. Solving easily deflection for determinate beams for different kinds of loading will help you to form stiffness matrix.And as you know, how formation of stiffness matrix helps to evaluate eigen value in matrix analysis and it further helps up us to evaluate different mode shape in dynamic analysis.Please go through these examples and will bring some more examples in Series-V to complete the deflection topic covering all kind of loading at different location over the beam.

Download PDF from below link

DOWNLOAD PDF FOR DEFLECTION CALCULATION FOR SELECTED & IMPORTANT EXAMPLES

                                              I have tried my best to solve these examples in a simplest way and if there is any further improvement is required, please write in comment box.Now, just go through these valuable examples and enjoy.

Please download attachment from here.

DOWNLOAD PDF FOR DEFLECTION CALCULATION FOR SELECTED & IMPORTANT EXAMPLES

Thanks

Mohammad Sohel Akhtar(MSA)

(Structural Engineer)



EXAMPLE ON DEFLECTION CALCULATION FOR BEAM SUBJECTED TO UDL AT PARTICULAR SPAN OF BEAM,SERIES-5

“Feel the structure”MSA

Dear friends,

As Explained in Series-IV, i am here by uploading deflection  calculation for cantilever beams for a load for a particular regions instead of whole region of beams. I will recommend all structural engineers not to remember general formula. Please go through easy steps which will help you to derive easily for calculation for deflection for  any kind of loads in a beams (either point load, udl,concentrated moments).To grasp whole concept, please go through Series-I to V.

Download pdf from the below mentioned link.

Download PDF for deflection of beam for load at particular region of beam

                   Now Enjoy this Series and will be back with very interesting examples on analysis of continuous  beams , frames etc. with Moment Distribution Method (MDM)  and will also upload examples on analysis of beams for rolling load based on Influence Line Diagram(ILD).

Please download from here for deflection calculation for beams.

Download pdf for deflection Calculation for Beams, Series

Thanks

Mohammad Sohel Akhtar(MSA)

(Structural Engineer)



EXCEL SHEET FOR THE DESIGN OF ISOLATED FOOTING WITH ACTUAL SURCHARGE/EARTH FILLING LOAD

“Feel the structure” MSA

Dear Friend,

Here i am attaching a valuable excel sheet for the design of isolated footing with actual surcharge /earth filling weight calculated in the same sheet. Generally, as a designer, we take 10% of total axial load for self weight of footing and filling but when you will actually calculate surcharge/filling weight & self weight of footing, it will be 30% to 40% and in some cases it may even  be 50%.

        Hence, it is better to calculate self wight of footing and filling weight instead of taking it 10% of total axial load (1.1xP).

From here, download this excel sheet which will automatically take filling and self weight of footing when you put size and thickness of footing.

Download Excel Sheet for the design of Design of Isolated footing with actual surcharge /filling load.

Thanks

Mohammad Sohel Akhtar(MSA)

(Structural Engineer)

CHARTS, TABLES & ANNEXES OF IS-456-2000 & IS-3370 IN EXCEL FORMAT

“Feel the structure”MSA

This incredible master excel data sheet for code  IS:456-2000 & IS:3370-1965 in which tables, charts & annexes has been generated in excel format .It will save your time and will be a tremendous help to practicing engineers as well as beginners. This is one of the most vital document that i am sharing to you. You can take out data of tables ,charts & annexes of IS:456-2000.

From below link, download excel sheet on IS-456-2000

DOWNLOAD TABLES & CHARTS IN EXCEL ON IS -456-2000


        You can take out data of Annexes A & B of IS:456-200 from this excel sheet.

Download Annex A & B of IS456-2000 in Excel format from the below link.

DOWNLOAD ANNEX-A & B OF IS-456-2000 IN EXCEL FORMAT

From Below Link, download IS-3370 tables & charts in Excel format

DOWNLOAD TABLES & CHARTS OF IS3370-1965 IN EXCEL FORMAT


There is no need to do interpolation. This excel sheet will be like a handbook for limit state design & working stress method of design for reinforced concrete where  it will help you to save your time  doing so much iteration with various grade of concrete,reinforcement and sizes of structural elements to check serviceability limit,either under reinforced or over reinforced, singly reinforced ,doubly reinforced & so on so forth. When you will start using this excel sheet, undoubtedly, you will say its a treasure. Now, enjoy working with this.
         Wish you all a great future in Structural Engineering field .This exceptional excel sheet is going to bring an opportunity for you to explore more and more and will indulge you to dive into huge depth in Structural Engineering.

Thanks

Mohammad Sohel Akhtar(MSA)

(Structural Engineer)



EXAMPLE ON ANALYSIS OF 2-SPAN CONTINUOUS BEAM BY MOMENT DISTRIBUTION METHOD(MDM) – SERIES(I)

Feel the structure” MSA

 Here you all Civil & Structural Engineers are invited to go through this basic example solved to clarify concepts on moment distribution methods.Everybody knows the importance of moment distribution method and how it is helpful to solve indeterminate continuous beams and frames.Here i am taking you some step ahead to analyse indeterminate beams and frame by creating interest on this vital subject.In near future,i am coming with several series on this topic having best examples to clear concepts.Going through all this series, you will prefer to analyse continuous beams and frame manually rather than with software like STAAD, ANSYS etc. As it is not a verbal / visual lecture, that’s why i have walked you through in details to foster this incredible subject. But keep in mind, when you will develop concept and principle of MDM by practicing examples, then i assure you, it will help you to solve simple frame and continuous beams in very faster and easier way. Please see the previous of the said example from below.

Download pdf of solved example on MDM from the below mentioned link.

DOWNLOAD PDF FOR ANALYSIS OF CONTINUOUS BEAM BY MOMENT DISTRIBUTION METHOD (MDM) – EXAMPLE, SERIES(I)


                                Sometimes it looks weird or you can say incredibly weird that how these examples are going to help as most of the concepts are available in books.But i would say to my readers that i have developed some tricky parts on this  which are very helpful to understand overall  concept of MDM without having visual lecture. Readers might be wandering here and there to foster concept of MDM by following some books but now i assure them all to go through this and upcoming series to develop tremendous subject of indeterminate frames & beams.I invite you all to be connected with up coming series.

                                  This is the first series on moment distribution with a simple example of two span continuous beam in which one end is hinged and other end is fixed.With this example, i have tried to explained to form table for moment distribution and once you are able to understand this table, then other associated part will be much easier for you. Also, i have solved in detail for the formation of BMD & SFD in non conventional method and it is quite easy to understand.

click here to download pdf

Thanks

Mohammad Sohel Akhtar(MSA)

(Structural Engineer)