Merge pull request #5 from TeachBooks/main

pulling main towards basic properties

book/design_workflow/general_design_guide.ipynb

@@ -6,7 +6,71 @@
    "source": [
     "# General design guide\n",
     "\n",
-    "\n"
+    "## The design process\n",
+    "\n",
+    "The design process is part of the life cycle of a structure: the ‘idea-phase’, \n",
+    "the ‘design-phase’, the ‘construction phase’, the ‘use and maintenance phase’, \n",
+    "and the ‘demolition phase’. The structural engineer acts in the ‘design phase’. \n",
+    "The terms ‘initiative’, ‘project definition’, ‘concepts’, ‘preliminary design’, \n",
+    "and ‘verification of structural safety’ will be explained shortly below.\n",
+    "\n",
+    "## Project definition\n",
+    "\n",
+    "To define the project, one first drafts a plan of action (strategy). This\n",
+    "determines how to proceed in this phase, what the results should be and\n",
+    "the criteria to which the result of this phase should be compared. Just like\n",
+    "in the previous phase various aspectstudies need to be done. Eventually\n",
+    "this leads to the formulation of a report containing all basic assumptions\n",
+    "concerning the structural design. This forms a supplement to the PoR.\n",
+    "\n",
+    "## Concepts\n",
+    "\n",
+    "In this phase too several studies have to be performed. The designer makes several\n",
+    "‘structural’ concepts. To make a sensible design, he first analyses the force flow\n",
+    "in both horizontal and vertical direction. Also the ability of the structure to retain\n",
+    "its shape and place is investigated as well as the connections between different\n",
+    "elements and parts of the building. After feedback from the structural assumptions\n",
+    "at least two of the concepts are chosen for further analysis. With the aid of design\n",
+    "tools (rules of thumb, diagrams and tables) the overall dimensions of the structure\n",
+    "(including stability measures) are determined and critical connections are studied\n",
+    "for feasibility. The sections on different materials contain information on\n",
+    "structural elements (such as precast conrete beams, hollow core slabs etc.)\n",
+    "and tables with available (steel) profiles to come to reasonable dimensions. Already\n",
+    "in this stage it is wise to orientate on different foundation possibilities as\n",
+    "the foundation can have influence on the rest of the structure. The section on\n",
+    "foundations can provide the necessary information. Although the load bearing\n",
+    "structure is designed, this phase is not yet finished. Finally the designer needs\n",
+    "to look into possible façades and roof elements. Now a choice can be made between\n",
+    "the different concepts based on a multi criteria analysis. The criteria are based\n",
+    "on the PoR and structural assumptions.\n",
+    "\n",
+    "## Preliminairy structural design\n",
+    "\n",
+    "Now all the dimensions of the chosen structure can be determined. Again the sections\n",
+    "on the different materials can be helpful. Make sure, also in this preliminairy\n",
+    "design, that stability of your structure is ensured. It is a good idea to search\n",
+    "for alternative possibilities for the foundation and connecting structure to prevent\n",
+    "surprises in the final design stage. Also the building envelope deserves some\n",
+    "attention. Use the different examples given in the later chapters.\n",
+    "\n",
+    "## Preliminary design\n",
+    "\n",
+    "In this phase a further analysis of the strength, behaviour of the structure\n",
+    "is made. Also the stability is checked, and necessary stability measures are added.\n",
+    "To do this, quick calculations are made with simplified load combinations. The\n",
+    "section on mechanics offers the necessary formulas and ‘forget-me-nots’. More\n",
+    "attention is given to the foundation of the structure. Calculate the total vertical\n",
+    "load and design a transition structure (which transfers the loads from the main\n",
+    "load bearing structure to the foundation). Also a further analysis is made of the\n",
+    "possible façades, roof elements and other building finishes needs to be made. How\n",
+    "are the building finishes connected to the load bearing structure?\n",
+    "\n",
+    "## Verification of the structural safety and servicability\n",
+    "\n",
+    "The final preliminairy design of which the final dimensions are now determined,\n",
+    "has to be checked with a structural code. In Europe this is the Eurocode. The\n",
+    "different sections on steel, timber, concrete and foundations contain the\n",
+    "necessary information to perform the check.\n"
    ]
   },
   {