TikZ Library for Structural Analysis 
LaTeX  Graphics, Figures & Tables 
Written by Jürgen Hackl 
Sunday, 10 March 2013 11:58 
At university it is always a very time consuming work to create new assignments, and tests; especially when those tasks include drawing graphics. In the field of structural engineering those small structures are a key part for teaching. For this reason I developed, in cooperation with the Institute for Structural Analysis at the Graz University of Technology, a TikZ library for Structural Analysis. There are two different types of libraries available: one for 2D structures (structuralanalysis.sty) and one for 3D structures (3dstructuralanalysis.sty). In the following article only the 2D library will be discussed, but the principles and methods are the same for 3D structures. Contents
PrinciplesTikZ is a very powerful tool; however, unfortunately not everyone is used to this part of LaTeX. Therefore, in addition to the creation of the library the second goal was to keep the usage as simple as possible. So that:
Getting StartedInstallationDownload the .sty file in the right directory and add it to the LaTeX file like:\usepackage{structuralanalysis} LaTeX EnvironmentLike every TikZ graph, needs also this library the\begin{tikzpicture} ... \end{tikzpicture}environment. ElementsBasic CommandsThe library provides 10 different commands:
For each element (command) are different options available. Obligatory options are marked with {curley brackets} and optional values are marked with [square brackets]. The first type is a must have criteria. In contrast, the optional input is not required to be entered. An easy example is the following single force: \load{type}{insertion point}[rotation][length or included angle][loaddistance]; ManualMore specific information about the elements and their options can be found in the manual. The manual is written in German, but section 1 provides a table with all elements and options; furthermore, the code is also given for each picture in the manual.ExamplesThe easiest way to create a structure is the list above, starting with \point and ending with \addon. The following examples shall give a first impression how drawings can be generated. In the manual both examples are explained in detail. 2D Simplified Roof\begin{tikzpicture} \scaling{.65}; \point{a}{0}{1}; \point{b}{3}{1}; \point{c}{11}{3}; \point{d}{19}{1}; \point{e}{22}{1}; \point{f}{3}{0}; \point{g}{11}{2}; \point{h}{19}{0}; \beam{1}{a}{b}[0][1]; \beam{1}{b}{c}[1][1]; \beam{1}{c}{d}[1][1]; \beam{1}{d}{e}[1][0]; \beam{1}{f}{b}; \beam{1}{d}{h}; \beam{2}{f}{g}; \beam{2}{g}{h}; \beam{2}{g}{c}; \support{1}{f}; \support{2}{h}; \hinge{1}{f}; \hinge{1}{h}; \hinge{1}{g}; \hinge{2}{c}[b][d]; \lineload{2}{a}{b}[1][1][.5]; \lineload{2}{b}{c}; \dimensioning{1}{a}{b}{2.5}[$3,0$]; \dimensioning{1}{b}{c}{2.5}[$8,0$]; \dimensioning{1}{c}{d}{2.5}[$8,0$]; \dimensioning{1}{d}{e}{2.5}[$3,0$]; \dimensioning{2}{f}{a}{1}[$1,0$]; \dimensioning{2}{g}{f}{1}[$2,0$]; \dimensioning{2}{a}{c}{1}[$2,0$]; \influenceline{a}{e}{3}[.3]; \notation{1}{a}{$1$}[left]; \notation{1}{b}{$2$}[below right=2mm]; \notation{1}{c}{$3$}; \notation{1}{d}{$4$}[above]; \notation{1}{e}{$5$}[above]; \notation{1}{f}{$6$}[left=2mm]; \notation{1}{g}{$7$}[below=2mm]; \notation{1}{h}{$8$}[right=2mm]; \notation{4}{f}{g}[$S$]; \end{tikzpicture} 3D Support ConstructionBy using the library 3dstructuralanalysis, the following graph can be created in a very short time: \setcoords{25}{10}[1][1.2] \setaxis{2} %\showpoint \begin{tikzpicture}[coords] \dpoint{a}{0}{0}{0}; \dpoint{b}{3}{0}{0}; \dpoint{c}{6}{0}{0}; \dpoint{d}{9}{0}{0}; \dpoint{e}{12}{0}{0}; \dpoint{f}{0}{3}{0}; \dpoint{g}{3}{3}{0}; \dpoint{h}{6}{3}{0}; \dpoint{i}{9}{3}{0}; \dpoint{j}{12}{3}{0}; \daxis{1}{a}; \dbeam{1}{f}{b}; \dbeam{1}{b}{h}; \dbeam{1}{h}{d}; \dbeam{1}{d}{j}; \dbeam{3}{a}{e}; \dbeam{3}{f}{j}; \dbeam{3}{a}{f}; \dbeam{3}{b}{g}; \dbeam{3}{c}{h}; \dbeam{3}{d}{i}; \dbeam{3}{e}{j}; \dsupport{1}{b}; \dsupport{1}{h}[0][0]; \dsupport{1}{d}[0]; \dhinge{2}{b}[f][h][1]; \dhinge{2}{h}[b][d][1]; \dhinge{2}{d}[h][j][1]; \dlineload{5}{0}{f}{b}[.5][.5][.11]; \dlineload{5}{0}{b}{h}[.5][.5][.11]; \dlineload{5}{0}{h}{d}[.5][.5][.11]; \dlineload{5}{0}{d}{j}[.5][.5][.11]; \ddimensioning{xy}{f}{g}{4.5}[$3~m$]; \ddimensioning{xy}{g}{h}{4.5}[$3~m$]; \ddimensioning{xy}{h}{i}{4.5}[$3~m$]; \ddimensioning{xy}{i}{j}{4.5}[$3~m$]; \ddimensioning{yx}{e}{j}{13}[$3~m$]; \dnotation{1}{f}{$q=10~kN/m$}[above left=3mm]; \dnotation{1}{b}{$A$}[below left]; \dnotation{1}{h}{$C$}[right=2mm]; \dnotation{1}{d}{$B$}[below left]; \end{tikzpicture} Downloads

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