Please Active Javascript

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`) jQuery("#myTA").click(function() { this.focus(); this.select() }); var ta = document.getElementById('myTA'); // ta.addEventListener('copy', onCopyEvent); // ta.addEventListener('cut', onCopyEvent); ta.value = ''; clipboardDiv = document.createElement('div'); clipboardDiv.style.fontSize = '12pt'; // Prevent zooming on iOS // Reset box model clipboardDiv.style.border = '0'; clipboardDiv.style.padding = '0'; clipboardDiv.style.margin = '0'; // Move element out of screen clipboardDiv.style.position = 'fixed'; clipboardDiv.style['right'] = '-9999px'; clipboardDiv.style.top = (window.pageYOffset || document.documentElement.scrollTop) + 'px'; // more hiding clipboardDiv.setAttribute('readonly', ''); clipboardDiv.style.opacity = 0; clipboardDiv.style.pointerEvents = 'none'; clipboardDiv.style.zIndex = -1; clipboardDiv.setAttribute('tabindex', '0'); // so it can be focused clipboardDiv.innerHTML = ''; document.body.appendChild(clipboardDiv); function onCopyEvent(e) { e.preventDefault(); copyToClipboard(getTextAreaSelection(e.target)); // copy text // copyToClipboard(getTextAreaSelection(e.target)) // copyHtmlToClipboard(getTextAreaSelection(e.target)); // html } // function copyHtmlToClipboard(html) { // clipboardDiv.innerHTML = html; // var focused = document.activeElement; // clipboardDiv.focus(); // // window.getSelection().removeAllRanges(); // // var range = document.createRange(); // // range.setStartBefore(clipboardDiv.firstChild); // // range.setEndAfter(clipboardDiv.lastChild); // // window.getSelection().addRange(range); // var ok = false; // try { // if (document.execCommand('copy')) ok = true; // else utils.log('execCommand returned false !'); // } catch (err) { // utils.log('execCommand failed ! exception ' + err); // } // focused.focus(); // } function getTextAreaSelection(elem) { var selectedText; if (document.selection != undefined) // IE version { elem.focus(); var sel = document.selection.createRange(); selectedText = sel.text; } else if (elem.selectionStart != undefined) // Mozilla version { var startPos = elem.selectionStart; var endPos = elem.selectionEnd; selectedText = elem.value.substring(startPos, endPos) } return selectedText; } function copyToClipboard(text) { if (window.clipboardData && window.clipboardData.setData) { // Internet Explorer-specific code path to prevent textarea being shown while dialog is visible. return window.clipboardData.setData("Text", text); } else if (document.queryCommandSupported && document.queryCommandSupported("copy")) { var textarea = document.createElement("textarea"); textarea.textContent = text; textarea.style.position = "fixed"; // Prevent scrolling to bottom of page in Microsoft Edge. document.body.appendChild(textarea); textarea.select(); try { return document.execCommand("copy"); // Security exception may be thrown by some browsers. } catch (ex) { console.warn("Copy to clipboard failed.", ex); return false; } finally { document.body.removeChild(textarea); } } }

How To Calculate Quantity Of Steel For RCC Beam,Column And Slab

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Following Are The Steps To Calculate The Quantity Of Steel For RCC Slab:

1- Prepare a bar bending schedule in order to classify different shapes of bars (bent up bar, straight anchor bar, eos bar, curtail bar etc) and diameters.

2- List down all the shapes of bars from the drawing.

3- Count the number of bars of each of those shapes.

4- Then calculate the cutting length of each of those bars.

Cutting length of bar = (length of the member – deduction for cover on both sides) + development length.

5- Then calculate the unit weight of each dia bars by the following formula:

W = D^2/162 *L

Where D is the diameter in mm and weight (w) in kg, L= total length

6- Then calculate weight of rebar

Weight of rebar= no of bars x cutting length x unit weight

7- Add all the weight to get the total steel quantity.

NOTE :

1- Minimum % Of Steel Are:

1- For Beam (Teinsion reinforcement):

As = 0.85bd/fy of gross cross-section area.

2- For Slab = 0.12% of total area

3- For Column = 0.8% of cs area

2- Maximum % Of Steel Are:

1- For Beam = 4 % of cross-section area.

2- For Slab = 4% of cross-section area.

3- For column = 6% of cross-section area.

3- Development Length

Is usually specified in the drawings, but if not then you can calculate it as,

D.L = Depth – 2 times cover

4- Binding wire = 10 grams per kg of reinforcement.

5- No. of stirrups = (length of member – 2 x cover ) / spacing + 1

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