{"id":1997,"date":"2015-01-21T09:41:05","date_gmt":"2015-01-21T14:11:05","guid":{"rendered":"https:\/\/www.hidrasoftware.com\/?p=1997"},"modified":"2015-01-31T08:30:15","modified_gmt":"2015-01-31T13:00:15","slug":"sanitary-drainage-design-in-buildings-with-desagues-part-iii-building-house-drains","status":"publish","type":"post","link":"https:\/\/www.hidrasoftware.com\/en\/sanitary-drainage-design-in-buildings-with-desagues-part-iii-building-house-drains\/","title":{"rendered":"Sanitary Drainage Design in Buildings with DESAG\u00dcES \u2013 Part III: Building (House) Drains"},"content":{"rendered":"<p><strong>The last step in the design of sanitary drainage systems in buildings using DESAG\u00dcES (DRAINS) is the sizing of the Building (house) Drain pipes.<\/strong> This is the drainage system\u00b4s component that receives the discharge from soil and waste stacks and, also, from other drainage pipes (usually horizontal branches on the buildings\u2019 ground level) and conveys it to the Building sewer which begins outside the building walls.<\/p>\n<p>In DESAG\u00dcES, the building or house drains are formed by a series of straight sloping pipes interconnected <strong>by inspection chambers used, on one hand, to receive the Stacks\u2019 and other drainage pipes discharges and, on the other, to undertake the changes of direction in the system\u00b4s plan layout<\/strong> on its path to the Building sewer.<\/p>\n<p>The Fixture Units (F.U.) method for designing house drains is, if you will, a little more &#8216;complex&#8217; than in the case of the horizontal branches network, as <strong>is required to define the maximum allowable F.U.s, for several diameters and for various pipe\u2019s longitudinal slopes.<\/strong> You should have done this already, from the information you&#8217;ll find in your country\u00b4s standard codes regulations, in the <a href=\"https:\/\/www.hidrasoftware.com\/en\/how-to-design-drains-stacks-and-building-sewers-with-desagues-drains\/#libdiametrosUDS\">Project\u00b4s Diameters\u00b4 Manager<\/a>.<\/p>\n<p>Continuing with our example of a residential building, for which we&#8217;ve been designing <span style=\"text-decoration: underline;\">horizontal branches networks<\/span> and <span style=\"text-decoration: underline;\">Sanitary Stacks<\/span>, <strong>the approach to the Sanitary building (house) Drain system is presented in the following image<\/strong>:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3728\" title=\"sanitary-building-drains-plan-layout\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/01_sanitary-building-drains-plan-layout.jpg\" alt=\"sanitary-building-drains-plan-layout\" width=\"690\" height=\"991\" \/><\/p>\n<p>It is proposed that <strong>discharges of already designed sanitary stacks and horizontal branches on the ground floor\u00b4s housing units be concentrated on the inspection chamber IC1-W<\/strong> for sanitary components at the west wing of the building; on the east wing (remember that the building is symmetrical) the layout will be repeated, changing only Inspection Chamber\u2019s name to IC1-E.<\/p>\n<p><strong>From the aforementioned Inspection Chambers (IC), the wastewater will be conveyed, using the required I.C.s, to the Building (house) Sewer.<\/strong> In this path, we have included the I.C.s: IC2-W (IC2-E for east side) \u200b\u200band IC3-W (IC3-E), the first one needed to accomplish the direction\u2019s change and the last to concentrate all the wastewaters of the building (West and East systems) at one point before &#8216;taking them out&#8217; to the public network through <strong>\u2018Dis\u2019<\/strong> Inspection chamber on the above figure.<\/p>\n<p>Thus, in order to perform the building drains design, we must create in DESAG\u00dcES (DRAINS) the nodes that will allow us to:<\/p>\n<ul class=\"list_check\">\n<li><strong>Concentrate the wastewater from west side sanitary drainage components in IC1-W<\/strong> node, through the allocation on it of Stacks: <strong>Stk1, Stk2, Stk3<\/strong> (only one of each) and <strong>Stke and Stke1<\/strong> (two of each because the layout is repeated on the south house unit at ground floor).<\/li>\n<li>Similarly to the previous case will be done for the east wing of the building; the only difference is that the associated nodes will have the &#8216;E&#8217; suffix, i.e.: <strong>East\u2019s<\/strong> <strong>Stacks discharges will be concentrated in the IC1-E node.<\/strong><\/li>\n<\/ul>\n<p>To convey the wastewater to the aforementioned nodes (or inspection chambers) three sewer branches will be needed from Stacks <strong>Stk1, Stk2, Stk3<\/strong>, in addition to those required to interconnect to the remaining nodes.<\/p>\n<p>But let\u00b4s begin with the building drains system construction:<\/p>\n<h2>Creating the Building Drains<\/h2>\n<p>As in the case of horizontal branches networks, <strong>building drains can be created manually, using the tools provided on the Nodes and Sewers panels<\/strong> in the Project tab (when <strong>Sewers tab<\/strong> is active). <strong>Also it is possible to import the objects from a dxf drawing file<\/strong> to create the building drain components. You\u00b4ll find the respective dxf file in the DESAG\u00dcES installation folder (buildingdrains.dxf).<\/p>\n<p>So, the first thing to do in the DESAG\u00dcES project file containing networks and stacks created in the two previous parts in this series, is <strong><em>to activate the Sewers tab<\/em><\/strong> and make sure <strong><em>Sanitary Network is selected<\/em><\/strong> in the upper selector, inside the <strong>Current sewers network<\/strong> panel:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3729\" title=\"activating-the-building-drain-network\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/02_activating-the-building-drain-network.jpg\" alt=\"activating-the-building-drain-network\" width=\"470\" height=\"338\" \/><\/p>\n<div class=\"su-note\"  style=\"border-color:#167dc1;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#3097DB;border-color:#fcffff;color:#FFFFFF;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\">\n<p>In this case you will see that the network is already created (i.e. it\u00b4s not possible to rename or add others to the project); this is so because <strong>the software assumes that there can only be a building drain network by type (Sanitary and Storm), each with a single discharge point (the point of connection to the public sewers network).<\/strong><\/p>\n<\/div><\/div>\n<p>When <strong><em>Sewers tab is active<\/em><\/strong> note that already, in the nodes table, there exists a \u2018Discharge\u2019 Node. Like other components on DESAG\u00dcES, <strong>this node is supposed to be the discharging point of the modeled system. You cannot delete it from the project because it is necessary to give consistency to the calculation and design.<\/strong><\/p>\n<p>The importing process is <a href=\"https:\/\/www.hidrasoftware.com\/en\/creating-a-desagues-drains-project-from-drawing-files\/\">already known for<\/a> you. So, <strong><em>select appropriate layers<\/em><\/strong> as shown in the following image and <strong><em>click the Import button<\/em><\/strong>:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3730\" title=\"importing-building-drains-from-a-drawing-file\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/03_importing-building-drains-from-a-drawing-file.jpg\" alt=\"importing-building-drains-from-a-drawing-file\" width=\"592\" height=\"367\" \/><\/p>\n<p>After <strong><em>closing the import results message<\/em><\/strong>, you\u00b4ll see the data on nodes and branches tables:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3731\" title=\"nodes-and-branches-in-building-drains-network\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/04_nodes-and-branches-in-building-drains-network.jpg\" alt=\"nodes-and-branches-in-building-drains-network\" width=\"690\" height=\"600\" \/><\/p>\n<p>If you verify the imported data through visualizing its plan layout (Results tab, Plan and Isometric panel), you\u00b4ll see something like this:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3732\" title=\"resulting-building-drain-plan-view\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/05_resulting-building-drain-plan-view.jpg\" alt=\"resulting-building-drain-plan-view\" width=\"640\" height=\"539\" \/><\/p>\n<p>Everything is OK. Right?<\/p>\n<p>Note that, in the nodes table, the rows for the Stack column have the words NOT ASSIGNED. <strong>This is to indicate that Stacks has not been assigned to those nodes<\/strong> (of course, not every node must have an assigned stack). L<strong><em>et&#8217;s add the Stacks as we have stated at the beginning of this tutorial<\/em><\/strong>. Consider, as an example, <strong>the allocation of Stk1 to Stk1w Node<\/strong> (Stack N\u00b0 1, west):<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3733\" title=\"Assigning-stacks-to-nodes-in-building-drains-network\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/06_Assigning-stacks-to-nodes-in-building-drains-network.jpg\" alt=\"Assigning-stacks-to-nodes-in-building-drains-network\" width=\"690\" height=\"605\" \/><\/p>\n<p>The <strong>same needs to be done for Stk1E node and for Stk2 and Stk3 in their positions East and West.<\/strong><\/p>\n<div class=\"su-note\"  style=\"border-color:#167dc1;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#3097DB;border-color:#fcffff;color:#FFFFFF;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\">Note that the <strong>Node on Sewers Network<\/strong> dialog gives you <strong>the option of specifying a value for the additional Fixture Units<\/strong> (upper-right text box) that you consider as necessary besides those to be determined from the associated stacks on node.<br \/>\n<\/div><\/div>\n<p>Association of Stk1, Stk2 and Stk3 (East and West) to their respective nodes, <strong>allows us to concentrate discharged wastewater on the IC1 node<\/strong> (W and E), and just rests to assign to it the \u2018dummies stacks\u2019 created to concentrate the discharge from the ground floor horizontal branches networks:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3734\" title=\"Assigning-dummmies-stacks-to-building-drains\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/07_Assigning-dummmies-stacks-to-building-drains.jpg\" alt=\"Assigning-dummmies-stacks-to-building-drains\" width=\"585\" height=\"444\" \/><\/p>\n<p>Finally, the nodes\u00b4 table must have the following view:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3735\" title=\"Nodes-tables-building-drains\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/08_Nodes-tables-building-drains.jpg\" alt=\"Nodes-tables-building-drains\" width=\"468\" height=\"495\" \/><\/p>\n<h2>Performing the building drains network design<\/h2>\n<p>Before starting the calculation, it is important you choose the <a href=\"https:\/\/www.hidrasoftware.com\/en\/how-to-design-drains-stacks-and-building-sewers-with-desagues-drains\/#opcionesdiseno\">automatic design option<\/a> to use on the <strong><em>General tab of the Pipes\u2019 Diameters Manager<\/em><\/strong>.<\/p>\n<p><strong>Let\u00b4s see the resulting design when \u2018Look for the lowest possible diameter\u2019 is selected:<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3736\" title=\"results-of-building-drain-design\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/09_results-of-building-drain-design.jpg\" alt=\"results-of-building-drain-design\" width=\"690\" height=\"379\" \/><\/p>\n<p>Note that, <strong>in order to obtain smaller diameters, some branches will have longitudinal slopes up to 4% while the maximum ND is 110 mm.<\/strong><\/p>\n<p>Let\u00b4s compare now with <strong>results when \u2018Look for lowest possible slope\u2019 is the automatic design selected option<\/strong>:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3737\" title=\"results-of-building-drain-design-2\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/10_results-of-building-drain-design-2.jpg\" alt=\"results-of-building-drain-design-2\" width=\"690\" height=\"376\" \/><\/p>\n<p>Now, <strong>longitudinal slopes does not exceed the 1% while the greater obtained diameter is 160 mm<\/strong>.<\/p>\n<p>What is the best solution? On this theme, unfortunately, DESAG\u00dcES cannot help. It is up to you!<\/p>\n<div class=\"su-note\"  style=\"border-color:#167dc1;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#3097DB;border-color:#fcffff;color:#FFFFFF;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\">\n<p>A new feature, <strong>presented on the building drains properties editor, is the field \u2018Set Slope<\/strong><strong>\u2019<\/strong><strong>:<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3738\" title=\"Editing-building-drain-pipes\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/11_Editing-building-drain-pipes.png\" alt=\"Editing-building-drain-pipes\" width=\"541\" height=\"473\" \/><br \/>\n<\/div><\/div>\n<h2>Now (at last!) you can generate the Total List of Materials for the Project<\/h2>\n<p>After designing this last sanitary drainage system component, it is possible to generate, besides its respective list of materials, the total project\u00b4s materials list (including sanitary fixtures, horizontal branches, Stacks and building drains):<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3739\" title=\"Total-bill-of-materials-for-sanitary-drainage-system-in-building\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/12_Total-bill-of-materials-for-sanitary-drainage-system-in-building.jpg\" alt=\"Total-bill-of-materials-for-sanitary-drainage-system-in-building\" width=\"551\" height=\"594\" \/><\/p>\n<p>Finally, the Isometrics views for the building drains system can be generated from <strong><em>Results tab\u2192Plan and Isometric panel<\/em><\/strong>:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3740\" title=\"building-drain-isometric-view\" src=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/13_building-drain-isometric-view.jpg\" alt=\"building-drain-isometric-view\" width=\"539\" height=\"623\" \/><\/p>\n<p>And that&#8217;s it! The total Sanitary Drainage Design in Buildings has been performed easily with DESAG\u00dcES (DRAINS). You can download the generated project file <a href=\"https:\/\/www.hidrasoftware.com\/wp-content\/uploads\/2015\/01\/03_building-drains.zip\">clicking here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>The last step in the design of sanitary drainage systems in buildings using DESAG\u00dcES (DRAINS) is the sizing of the Building (house) Drain pipes.<\/strong> This is the drainage system\u00b4s component that receives the discharge from soil and waste stacks and, also, from other drainage pipes (usually horizontal branches on the buildings\u2019 ground level) and conveys it to the Building sewer which begins outside the building walls.<\/p>\n","protected":false},"author":1,"featured_media":1999,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[85],"tags":[97,96],"class_list":["post-1997","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cat-desagues-drains","tag-building-house-drains","tag-sanitary-drainage-design","post-wrapper","thrv_wrapper"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/posts\/1997","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/comments?post=1997"}],"version-history":[{"count":4,"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/posts\/1997\/revisions"}],"predecessor-version":[{"id":2015,"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/posts\/1997\/revisions\/2015"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/media\/1999"}],"wp:attachment":[{"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/media?parent=1997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/categories?post=1997"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hidrasoftware.com\/en\/wp-json\/wp\/v2\/tags?post=1997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}