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How to build a concrete reinforcement rebar area spreadsheet

Conception and creation of an interactive spreadsheet with REBAR steel to use when designing reinforced concrete sections.

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How to build a concrete reinforcement rebar area spreadsheet

1. 1. Structure, Formulas, Conditional Formatting and Publishing How to Build a Concrete Reinforcement Rebar Spreadsheet https://goo.gl/zFydSC
2. 2. Structure Objective: Conception and creation of an interactive spreadsheet with REBAR steel to use when designing reinforced concrete sections. This is a relatively simple calculation, that of circular areas, hence the extra focus on organizing and formatting separate spreadsheets according to the purpose: Local Longitudinal Rebars, Asl - total number of rebars Distributed Longitudinal Rebars, Asl - spacing of rebars per metre of slab or footing Transversal Rebar or Stirrups, Asw - diameter, number of branches, and spacing of stirrups per metre Including how to conditionally format the cells to make it more interactive https://goo.gl/zFydSC
3. 3. Formulas Simple Areas Calculation Description Equations Spreadsheet Simple Area Using the diamter in mm and giving the area in cm2 B1=pi()*(B2*0.001)^2/4*10000 https://goo.gl/zFydSC
4. 4. Formulas Local Longitudinal REBARS (beams or columns) https://goo.gl/zFydSC
5. 5. Fórmulas Distributed Longitudinal Rebars (slabs or footings) https://goo.gl/zFydSC
6. 6. Formulas Stirrups with 2 or more branches https://goo.gl/zFydSC
7. 7. Conditional Formating We can format the cells in the table (C9 to L17) by comparing their value with a reference value at C3 or even with a formula using C3 and C4 https://goo.gl/zFydSC
8. 8. Conditional Formatting There are 3 conditions to format and distinguish the values of the table according to: below the target value; at or slightly above (computed the margin) or avobe the target. https://goo.gl/zFydSC
9. 9. Conditional Formatting Looking at condition one more closely 1. define the cells you want to format range = C9:L17, 2. Chose the less than condition, 3. Enter the formula that computes the reference and the margin, notice the use of \$ to fix te values, 4. Define the format to apply when the conditions is fulfilled. https://goo.gl/zFydSC
10. 10. Publishing By using Sheet from Google Docs, it is possible to share your work, enabling others to see it or use it sa if it was a web application. In this case, I have chosen to partially protect each shared sheet, so that users cannot edit the formulas or cell formatting, but can edit the reference value, influencing the formatting of the sheet and gaining in this way some interactivity. https://goo.gl/zFydSC
11. 11. Publishing Printing Besides the 3 interactive sheets, a fourth sheet was created, containing the 3 tables produced, suitable for printing in A4. this can also be obtained in PDF here. https://goo.gl/zFydSC