{"id":32781,"date":"2026-04-27T12:26:51","date_gmt":"2026-04-27T12:26:51","guid":{"rendered":"https:\/\/protasoftware.com\/technical-manuals\/building-analysis\/axial-load-comparison-report-example\/"},"modified":"2026-06-19T12:37:51","modified_gmt":"2026-06-19T12:37:51","slug":"axial-load-comparison-report-example","status":"publish","type":"wiki","link":"https:\/\/protasoftware.com\/wiki\/axial-load-comparison-report-example\/","title":{"rendered":"Axial Load Comparison Report Example"},"content":{"rendered":"<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 115%\">\n<div><span style=\"font-size: 11pt\" class=\"size\"><\/span><\/div>\n<div><span style=\"margin: 10px 0px;position: relative;padding: 10px 10px 10px 40px\" class=\"KB_New_Editor_Highlights\"><img decoding=\"async\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-93b4de37c41549413a4d0218cd4c949c.png\" data-type=\"non-resize\" style=\"position: absolute;left: 12px;top: 14px;width: 15px;max-width: 100%\" data-image=\"contentStyle\" alt=\"Info\"><\/p>\n<div><span style=\"font-size: 16px;line-height: normal\" class=\"size\">Tutorial video of this topic is available at<\/span> <a target=\"_blank\" href=\"https:\/\/www.youtube.com\/watch?v=p2uCDptwLrc&amp;list=PLK6L9NVEbzK87yz-ZPQvAck3iXzz6YBbW&amp;index=14\" rel=\"noopener noreferrer\">ProtaStructure 2025 Basic E-Learning:&nbsp;14 Building Analysis, Axial Load Comparison Report<\/a><\/div>\n<p><\/span><\/div>\n<\/p>\n<div style=\"text-align: justify\"><span><br \/><\/span><\/div>\n<div class=\" align-center\" style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/desk.zoho.com\/DocsDisplay?zgId=672206093&amp;mode=inline&amp;blockId=dx0ba2d98e646962c4fc0abc8bb48a3375750\" style=\"padding: 0px;max-width: 100%;width: 336.312px;height: auto\" class=\"docsimage\" data-zdeskdocid=\"img_6313097748209466\" data-zdeskdocselectedclass=\"\"><span style=\"font-size: 16px\" class=\"size\"> <br \/><\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><br \/><\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div><span style=\"font-size: 16px;line-height: normal\" class=\"size\">A simple model can be created for a simple illustration of the Axial Load Comparison Report. The 3D view of the model is as above. The plan view of the model is as below.<\/span><span style=\"font-size: 16px\" class=\"size\"> <br \/><\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div class=\" align-center\" style=\"text-align: center\"><span style=\"font-size: 16px\" class=\"size\"><\/span><img decoding=\"async\" src=\"https:\/\/desk.zoho.com\/DocsDisplay?zgId=672206093&amp;mode=inline&amp;blockId=dx0ba500c7503ec87431c9a7a088f8cee75d8\" style=\"padding: 0px;max-width: 100%;width: 443.5px;height: auto\" class=\"docsimage\" data-zdeskdocid=\"img_6496483808848252\" data-zdeskdocselectedclass=\"best\"><span style=\"font-size: 16px\" class=\"size\"> <br \/><\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div><span><span style=\"font-size: 16px;line-height: normal\" class=\"size\">General information regarding the model<\/span><\/span><\/div>\n<div><\/div>\n<table style=\"border-collapse: collapse;width: 650px;max-width: 100%;height: 184px\" width=\"561\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\">\n<colgroup>\n<col style=\"width: 88pt\" width=\"118\">\n<col style=\"width: 332pt\" width=\"443\">\n <\/colgroup>\n<tbody>\n<tr style=\"height: 14.4pt\">\n<td style=\"height: 20px;width: 88pt\" width=\"118\" height=\"19\"><span style=\"font-size: 16px;line-height: normal\" class=\"size\">Beam<\/span> <span style=\"font-size: 16px;line-height: normal\" class=\"size\">Size<\/span>&nbsp;<\/td>\n<td class=\" align-left\" style=\"width: 332pt;text-align: left;height: 20px\" width=\"443\"><span style=\"font-size: 16px;line-height: normal\" class=\"size\">: <\/span><span class=\"font\"><span class=\"colour\"><span class=\"highlight\"><span style=\"font-size: 16px;line-height: normal\" class=\"size\">250mm (width) x 500mm (depth)<\/span><span style=\"font-size: 16px;line-height: normal\" class=\"size\">&nbsp;<\/span><\/span><\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 14.4pt\">\n<td style=\"height: 20px\" height=\"19\"><span style=\"font-size: 16px;line-height: normal\" class=\"size\">Column Size<\/span><\/td>\n<td style=\"height: 20px\"><span style=\"font-size: 16px;line-height: normal\" class=\"size\">: 250mm x 250mm<\/span><\/td>\n<\/tr>\n<tr style=\"height: 14.4pt\">\n<td style=\"height: 14.4pt\" height=\"19\"><span style=\"font-size: 16px;line-height: normal\" class=\"size\">Column Height<\/span><\/td>\n<td><span style=\"font-size: 16px;line-height: normal\" class=\"size\">: 3000mm<\/span><\/td>\n<\/tr>\n<tr style=\"height: 16.2pt\">\n<td style=\"height: 16.2pt\" height=\"22\"><span style=\"font-size: 16px;line-height: normal\" class=\"size\">Slab Thickness<\/span><\/td>\n<td><span style=\"font-size: 16px;line-height: normal\" class=\"size\">: 150mm &#8211; therefore self-weight = 3.6 kN\/m<\/span><font class=\"font5\"><sup><span style=\"font-size: 10px\" class=\"size\">2<\/span><\/sup><\/font><\/td>\n<\/tr>\n<tr style=\"height: 28.8pt\">\n<td style=\"height: 28.8pt\" class=\"xl66\" height=\"38\"><span style=\"font-size: 16px;line-height: normal\" class=\"size\">Loading on slab<\/span><\/td>\n<td style=\"width: 332pt\" width=\"443\" class=\"xl65\"><span style=\"font-size: 16px;line-height: normal\" class=\"size\">: Self-Weight (calculated<br \/>\n  automatically based on thickness of slab)<\/span><\/td>\n<\/tr>\n<tr style=\"height: 16.2pt\">\n<td style=\"height: 16.2pt\" height=\"22\"><\/td>\n<td><span style=\"font-size: 16px;line-height: normal\" class=\"size\">: SDL = 1 kN\/m<\/span><font class=\"font5\"><sup><span style=\"font-size: 10px\" class=\"size\">2<\/span><\/sup><\/font><\/td>\n<\/tr>\n<tr style=\"height: 16.2pt\">\n<td style=\"height: 16.2pt\" height=\"22\"><\/td>\n<td><span style=\"font-size: 16px;line-height: normal\" class=\"size\">: Total Dead Load = 4.6 kN\/m<\/span><font class=\"font5\"><sup><span style=\"font-size: 10px\" class=\"size\">2<\/span><\/sup><\/font><\/td>\n<\/tr>\n<tr style=\"height: 16.2pt\">\n<td style=\"height: 16.2pt\" height=\"22\"><\/td>\n<td><span style=\"font-size: 16px;line-height: normal\" class=\"size\">: Imposed Load = 0 kN\/m<\/span><font class=\"font5\"><sup><span style=\"font-size: 10px\" class=\"size\">2<\/span><\/sup><\/font><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\">The following report is produced by ProtaStructure for this model. Note that there are 3 main sections (tables) of information the headings of which have been emboldened.<\/span><span><span style=\"font-size: 16px\" class=\"size\">&nbsp;<\/span><\/span><\/div>\n<div><\/div>\n<div><img decoding=\"async\" style=\"padding: 0px;max-width: 100%\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-27cc1c9234066575137420121efafe8e.png\"><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><span><\/span><span style=\"font-size: 16px\" class=\"size\"> <br \/><\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<p><span style=\"font-size: 16px\" class=\"size\"><span style=\"font-size: 16px\" class=\"size\">The purposes and validity of the comparisons that can be made between the sections of this table are discussed in the following sections.<\/span><\/span><\/p>\n<div>\n<h1 id=\"Table_1_Total_Loads_Based_on_Slabs\" class=\"toc_anchors\"><span style=\"font-size: 32px\" class=\"size\"><span class=\"colour\">Table 1: Total Loads (Based on Slabs)<\/span><\/span><\/h1>\n<p class=\"MsoNormal\">\n<div><img decoding=\"async\" style=\"padding: 0px;max-width: 100%\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-48cd21a0590f69e129773b18566e381d.png\"><\/div>\n<div><b><u><span style=\"font-size: 16px\" class=\"size\">This table shows the sum of:<\/span><\/u><\/b><span style=\"font-size: 16px\" class=\"size\"><br \/><\/span><\/div>\n<ol>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Member self\u2010weights<\/span><\/li>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Applied loads on columns\/walls<\/span><\/li>\n<li style=\"list-style-type: disc\"><span class=\"font\"><span style=\"font-size: 16px\" class=\"size\">&nbsp;<\/span><\/span><span style=\"font-size: 16px\" class=\"size\">Applied loads on beams<br \/><\/span><\/li>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Applied loads on slabs<br \/><\/span><\/li>\n<\/ol>\n<div><span><span style=\"font-size: 16px\" class=\"size\">The slab loads are calculated based on the area as seen on plan \u2013&nbsp;<\/span><\/span><b><span style=\"font-size: 16px\" class=\"size\">i.e<\/span><\/b><span><span style=\"font-size: 16px\" class=\"size\">&nbsp;<\/span><\/span><i><span style=\"font-size: 16px\" class=\"size\">they are not yet decomposed onto beams.<\/span><\/i><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\">The detailed calculations are therefore as follows:<\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><img decoding=\"async\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-dc21089b9f191eda8f940c6130c6d595.png\" style=\"padding: 0px;max-width: 100%\"><br \/><\/span><\/div>\n<div class=\" align-left\"><\/div>\n<h1 id=\"Table_2_Total_Loads_Decomposition_to_Beams\" class=\"toc_anchors\"><span style=\"font-size: 32px\" class=\"size\"><span class=\"colour\">Table 2: Total Loads (Decomposition to Beams)<\/span><\/span><br \/><\/h1>\n<div><span style=\"font-size: 16px\" class=\"size\">Differences between this table and Table 1 are specifically intended to expose problems in slab load decomposition. Since there are two methods of slab load decomposition supported, we will look at each of these separately.<\/span> <\/div>\n<h3 id=\"Using_Yield_Line_Decomposition\" class=\"toc_anchors\">Using Yield Line Decomposition<br \/><\/h3>\n<p class=\"MsoNormal\">\n<div><img decoding=\"async\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-6f93c4d6ce2d798c84baa773f5879b6a.png\" style=\"padding: 0px;max-width: 100%\"><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\">Once again, this table shows the sum of:<\/span><\/div>\n<ol>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Member Self\u2010weights<\/span><\/li>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Applied loads on columns\/walls<\/span><\/li>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Applied loads on beams&nbsp;<\/span><\/li>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Applied loads on slabs<\/span><\/li>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<\/ol>\n<p><span><span style=\"font-size: 16px\" class=\"size\">The key difference in this table is that the slab loads are now decomposed and thus counted as UDL\u2019s, VDL\u2019s etc. on the supporting beams. Therefore, you will find that the slab loads become zero, but the beam loads increase accordingly.<\/span><\/span><\/p>\n<p><span style=\"text-align: justify\"><span style=\"font-size: 16px\" class=\"size\">Decomposed Slab Loads \u2013 Consider again the model and the decomposed slab loads shown below.<\/span><\/span><\/p>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<p class=\"MsoNormal align-center\" style=\"margin-bottom: 8pt;line-height: 107%;text-align: center\"><span class=\"colour\"><span style=\"font-size: 16px\" class=\"size\">&nbsp;<\/span><img decoding=\"async\" src=\"https:\/\/desk.zoho.com\/DocsDisplay?zgId=672206093&amp;mode=inline&amp;blockId=dx0ba2bec957c877046828da9a9ed5f5b0ada\" style=\"padding: 0px;max-width: 100%;width: 443.5px;height: auto\" class=\"docsimage\" data-zdeskdocid=\"img_7646399461480147\" data-zdeskdocselectedclass=\"best\"><\/span><span style=\"font-size: 16px\" class=\"size\"><br \/><\/span><\/p>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div class=\" align-center\" style=\"text-align: center\"><span style=\"font-size: 16px\" class=\"size\"><\/span><span style=\"font-size: 16px\" class=\"size\"> <img decoding=\"async\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-a80387f0fa0db07514378c0430cdcd39.png\" style=\"padding: 0px;max-width: 100%;width: 508px;height: auto\" data-zdeskdocid=\"img_4169648970791042\" class=\"docsimage\" data-zdeskdocselectedclass=\"best\"><br \/><\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 115%\"><span><span style=\"font-size: 16px\" class=\"size\">The plan view shows the yield lines, strictly speaking these are really just load decomposition lines which are used to show the area of slab loading that will be attributed to each beam. This method of area load decomposition is commonly known as the Yield Line Method. Looking at the triangular load distribution generated on the above beam, the beam load calculation effectively becomes:<\/span><\/span><\/p>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div>\n<p class=\"MsoNormal\" style=\"margin-left: 65pt\"><span style=\"font-size: 16px\" class=\"size\">Decomposed Slab Load&nbsp;&nbsp;&nbsp; =&nbsp;(A1 + A2 + A3 + A4) kN\/m2 <i>&lt;Please refer to diagram&gt; &#8211;&nbsp;<\/i>adjustment loads<i><br \/><\/i>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=&nbsp;4 x 28.75 kN &#8211; 9 kN<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=&nbsp;&nbsp;<\/span><b style=\"text-align: justify;text-indent: -20.9pt\"><span style=\"font-size: 16px\" class=\"size\">106 kN<\/span><\/b><\/p>\n<\/div>\n<div class=\" align-justify\" style=\"text-align: justify\"><span style=\"font-size: 16px\" class=\"size\">The beam loading profile and the above calculation clearly get much more complex when more irregular slab arrangements are used.<\/span><\/div>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 115%\"><span style=\"font-size: 16px\" class=\"size\">The calculations reported in Table 2 are therefore as follows:<\/span><\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 115%\"><span style=\"font-size: 16px\" class=\"size\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Columns Self Weight&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;= UNCHANGE<br \/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=&nbsp;<\/span><b style=\"text-indent: -21.4pt\"><span style=\"font-size: 16px\" class=\"size\">18 kN<\/span><\/b><\/p>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\">&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br \/>\n  Beams Loads&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; &nbsp;<br \/>\n  = 57 kN + 106 kN<br \/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=&nbsp;<\/span><b style=\"text-align: justify;text-indent: -21.4pt\"><span style=\"font-size: 16px\" class=\"size\">163 kN<\/span><\/b><\/div>\n<h3 id=\"Using_Finite_Element_Decomposition\" class=\"toc_anchors\">Using Finite Element Decomposition<span style=\"font-size: 15px\" class=\"size\">&nbsp;<\/span><\/h3>\n<div class=\" align-justify\" style=\"text-align: justify\"><span style=\"font-size: 16px\" class=\"size\">If slab loads are decomposed using the alternative FE method, the loadings from the slab are applied to the beam as a complex beam load as shown below. <br \/><\/span><\/div>\n<div class=\" align-center\" style=\"text-align: center\"><span style=\"font-size: 16px\" class=\"size\"><\/span><img decoding=\"async\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-634d8958ee99d32972cfd56c6cd4400e.png\" style=\"padding: 0px;max-width: 100%;width: 508px;height: auto\" data-zdeskdocid=\"img_5023697753872765\" class=\"docsimage\" data-zdeskdocselectedclass=\"best\"><\/div>\n<div class=\" align-center\" style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-fa8da7ea69c16cc3bdf133b3bfc8a3bf.png\" style=\"padding: 0px;max-width: 100%;width: 905.875px;height: auto\" data-zdeskdocid=\"img_8176920193723132\" class=\"docsimage\" data-zdeskdocselectedclass=\"\"><\/div>\n<h3 id=\"Comparisons_between_Tables_1_and_2\" class=\"toc_anchors\">Comparisons between Tables 1 and 2<br \/><\/h3>\n<div class=\" align-justify\" style=\"text-align: justify\"><span style=\"font-size: 16px\" class=\"size\">Comparison between these 2 tables provides an indication of the success of the slab load decomposition. If the totals in Table 2 are less than those in Table 1 this would give an indication that loads have gone missing during the decomposition process in which case you should:<\/span><\/div>\n<ol>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Check that slab loads are applied within slab boundaries<\/span><\/li>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Visually Check Yield Lines \u2013 if they do not look right on the plan the decomposition is probably not right.<\/span><\/li>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">If Yield Lines are wrong, consider swapping to the FE Load Decomposition method.<\/span><\/li>\n<\/ol>\n<\/div>\n<div>\n<div class=\" align-justify\" style=\"text-align: justify\"><span class=\"KB_New_Editor_Highlights\" style=\"margin: 10px 0px;position: relative;padding: 10px 10px 10px 40px\"><img decoding=\"async\" data-image=\"contentStyle\" style=\"position: absolute;left: 12px;top: 14px;width: 15px;max-width: 100%\" data-type=\"non-resize\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-c58830554c1033187b85dc264daccdda.png\" alt=\"Notes\"><\/p>\n<div><span style=\"font-size: 16px\">Both FE and Yield Line decomposition decompose slab loads to beams. If there are areas without beams (where slabs are supported directly by columns \u2013 i.e. Flat Slabs) the decomposition process is guaranteed to lose load. In such cases full FE analysis or &quot;Include Slab in Building Model&quot; must be used and the discrepancy between the totals in Tables 1 and 2 should be seen as an&nbsp; indicator of this requirement.<\/span><\/div>\n<p><\/span><\/div>\n<div><span class=\"KB_New_Editor_Highlights\" style=\"margin: 10px 0px;position: relative;padding: 10px 10px 10px 40px\"><img decoding=\"async\" data-image=\"contentStyle\" style=\"position: absolute;left: 12px;top: 14px;width: 15px;max-width: 100%\" data-type=\"non-resize\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-c58830554c1033187b85dc264daccdda.png\" alt=\"Notes\"><\/p>\n<div><span style=\"font-size: 16px\">In all but the simplest of models, there will always be a small discrepancy between Table 1 and 2. However, this can be ignored especially if the decomposed load in Table 2 is slightly higher than the undecomposed load in Table 1.<\/span><\/div>\n<p><\/span><\/div>\n<h1 id=\"Table_3_Building_Analysis_Column_and_Wall_Axial_Loads\" class=\"toc_anchors\"><span style=\"font-size: 32px\" class=\"size\"><span class=\"colour\">Table 3: Building Analysis Column and Wall Axial Loads<\/span><\/span><\/h1>\n<p class=\"MsoNormal align-center\" style=\"text-align: center;line-height: 115%\"><span style=\"font-size: 16px\" class=\"size\"><img decoding=\"async\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-a5d7378b1d390cb3978ba9867ad50983.png\" style=\"padding: 0px;max-width: 100%;width: 508px;height: auto\" data-zdeskdocid=\"img_31631552718263123\" class=\"docsimage\" data-zdeskdocselectedclass=\"best\"><br \/><\/span><\/p>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div class=\" align-justify\" style=\"text-align: justify\"><span style=\"font-size: 16px\" class=\"size\">The figures in table above reflect the results of the building frame analysis. The building analysis is a frame analysis where the beams are loaded with all the decomposed slab loads. Therefore, the input is based on either the yield line or FE Load Decomposition method; whichever has been selected.&nbsp;<\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div class=\" align-justify\" style=\"text-align: justify\"><span style=\"font-size: 16px\" class=\"size\">When the analysis is complete the accumulated column loads on each storey are shown in the table.<\/span> <\/div>\n<h1 id=\"Axial_Load_Comparison_Warnings\" class=\"toc_anchors\"><span class=\"colour\">Axial Load Comparison Warnings<\/span><br \/><\/h1>\n<div class=\" align-justify\" style=\"text-align: justify\"><span style=\"font-size: 16px\" class=\"size\">It is therefore appropriate to compare Table 2 with Table 3 which is in effect a comparison of analysis input with analysis results. If the totals are different the building analysis is incorrect in some way in which case you should check:<\/span><\/div>\n<ol>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">If there were warnings during the building analysis, the warnings should not be ignored and corrective action should be taken.<br \/><\/span><img decoding=\"async\" src=\"https:\/\/desk.zoho.com\/DocsDisplay?zgId=672206093&amp;mode=inline&amp;blockId=6sm415296fc13342444c387275da2d2e9f98b\" style=\"padding: 0px;max-width: 100%\"><span style=\"font-size: 16px\" class=\"size\"><br \/><\/span><\/li>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<\/ol>\n<div><span style=\"font-size: 16px\" class=\"size\">This error normally due to some common building modelling mistakes. To resolve this issue:&nbsp;<\/span><\/div>\n<ol>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Check whether the discontinuous columns and beams are properly supported.<\/span><\/li>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Use &quot;Load Decomposition by FE&quot; instead of &quot;Yield Line Method&quot; to ensure loading on slab (ie. nodal load, UDL). For more detail, please refer to&nbsp;<\/span><a href=\"https:\/\/support.protasoftware.com\/portal\/en\/kb\/articles\/yield-line-and-fe-load-decomposition-with-example\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"font-size: 16px\" class=\"size\">Yield Line and FE Load Decomposition with Example<\/span><\/a><span style=\"font-size: 16px\" class=\"size\">.<\/span><\/li>\n<li style=\"list-style-type: disc\"><span style=\"font-size: 16px\" class=\"size\">Make sure &quot;Similar Storey&quot; set in &quot;Edit Storey&quot; should have the same storey height. For example, if 2nd storey with 4m height and 3th storey with 3m height set as similar storeys, this will causes axial load comparison error. Exclude the storey which has different height will solve this issue.<\/span><\/li>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<\/ol>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<div><span class=\"KB_New_Editor_Highlights\" style=\"margin: 10px 0px;position: relative;padding: 10px 10px 10px 40px\"><img decoding=\"async\" data-image=\"contentStyle\" style=\"position: absolute;left: 12px;top: 14px;width: 15px;max-width: 100%\" data-type=\"non-resize\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-93b4de37c41549413a4d0218cd4c949c.png\" alt=\"Info\"><\/p>\n<div><span style=\"font-size: 16px\">Flat slab models are a good example of the case where there will be discrepancies and loads are lost, but this can all be ignored since Finite Element Analysis load Chase Down is required. Alternatively. mesh the floor slabs by ticking the option &quot;Include Slabs in Building Model&quot; in Building Analysis menu.<\/span><\/div>\n<div><span style=\"font-size: 16px\" class=\"size\"><\/span><\/div>\n<p><\/span><\/div>\n<div>\n<h1 id=\"Axial_Load_Comparison_Warning_Limitation\" class=\"toc_anchors\"><span class=\"zdbe2854f03d custom_text zde1e2d924f1 zdad1205e4d7\">Axial Load Comparison Warning Limitation<\/span><\/h1>\n<\/div>\n<div>\n<div>A false warning may pop out when:&nbsp;<\/div>\n<ol>\n<li style=\"list-style-type: decimal\">Too many (i.e. 4 or more) &quot;Plane Definition&quot; created at the same storey. This will affect the loading captured in table 1.<\/li>\n<li style=\"list-style-type: decimal\">&quot;Plane Definition&quot; created on top of a slanted slab (i.e. Ramp). This will affect the loading captured in table 1.<\/li>\n<li style=\"list-style-type: decimal\">\u201cSupport Type\u201d is defined in beam. This will affect the loading captured in table 3.<\/li>\n<li style=\"list-style-type: decimal\">Loadings applied on sag rods.&nbsp;<\/li>\n<li style=\"list-style-type: decimal\">Dome applied on a similar storey floor. This will affect the dome loading captured in table 1 and 2. Reset the similar storey to resolve this warning.<\/li>\n<li style=\"list-style-type: decimal\">Loading applied onto rigid zone (red). This loading will not be captured in table 1 and table 2 but correctly captured by table 3 (Building Analysis Result).<br \/><img decoding=\"async\" style=\"padding: 0px;max-width: 100%\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-0f74ae55dabf546ccb913955fd1c5d88.png\"><\/li>\n<\/ol>\n<div><span class=\"KB_New_Editor_Highlights\" style=\"margin: 10px 0px;position: relative;padding: 10px 10px 10px 40px\"><img decoding=\"async\" data-image=\"contentStyle\" data-type=\"non-resize\" src=\"https:\/\/protasoftware.com\/wp-content\/uploads\/2026\/04\/prota-doc-c7409bc5dd1998488ef8e5ee0e4daddd.png\" style=\"position: absolute;left: 12px;top: 14px;width: 15px;max-width: 100%\" alt=\"Warning\"><\/p>\n<div>If this happens, user may choose to ignore the Axial Load Comparison Warning upon self checking and verifying the behaviour and the forces of the Analytical Model.<\/div>\n<p><\/span><\/div>\n<\/div>\n<div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Tutorial video of this topic is available at ProtaStructure 2025 Basic E-Learning:&nbsp;14 Building Analysis, Axial Load Comparison Report A simple model can be created for&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"template":"","meta":{"_whitepaper_youtube_videos":"[{\"url\":\"https:\/\/www.youtube.com\/watch?v=VHlCItNDjuo\",\"thumbnail\":\"https:\/\/i.ytimg.com\/vi\/VHlCItNDjuo\/default.jpg\",\"type\":\"video\",\"title\":\"14 Building Analysis, Axial Load Comparison Report\"},{\"url\":\"https:\/\/www.youtube.com\/watch?v=p2uCDptwLrc\",\"thumbnail\":\"https:\/\/i.ytimg.com\/vi\/p2uCDptwLrc\/default.jpg\",\"type\":\"video\",\"title\":\"14 u2013 Building Analysis &amp; Axial Load Comparison Report\"},{\"url\":\"https:\/\/www.youtube.com\/watch?v=cP6ywPgCQms\",\"thumbnail\":\"https:\/\/i.ytimg.com\/vi\/cP6ywPgCQms\/default.jpg\",\"type\":\"video\",\"title\":\"14 u2013 Building Analysis &amp; Axial Load Comparison Report\"}]","_whitepaper_youtube_url":"https:\/\/www.youtube.com\/watch?v=cP6ywPgCQms","_whitepaper_youtube_thumbnail":"https:\/\/i.ytimg.com\/vi\/cP6ywPgCQms\/default.jpg","footnotes":""},"categories":[174],"whitepaper_topic":[],"whitepaper_product":[],"whitepaper_type":[],"class_list":["post-32781","wiki","type-wiki","status-publish","hentry","category-building-analysis"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - 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