概述
世界著名结构工程软件space gass是在Windows下的一个软件，非常适用于在2D和3D下进行结构分析和设计。软件包含丰富的型材库，有Aust250、Aust300、AustAlum、AustOld、Austimb、Brish、ChinaGB、Duragal、Euro、Euro2、ILB、JapMet、Lysaght、SA、SA-BS、Smorgon、US等。为澳大利亚综合技术软件控股有限公司（Integrated Technical Software Pty Ltd）研发。现已推出第十版本。
Space gass的功能
基本功能
· 建模。能在2D和3D模式下进行结构建模。可以采用建模向导进行快速建模或者简笔勾出结构，再对其截面进行定义。
· 分析。在对结构进行荷载布置后可以进行结构分析。有线性分析、非线性分析、动态分析和屈曲分析等。
· 交互功能。space gass可以和很多软件进行数据交互。和CAD、BIM (building information management)可进行广泛交互。其他软件如CIMSteel/2 (CIS/2)或 IFC 等文件也可以连接到 SPACE GASS. 包括STAAD, Risa-3D, SAP2000 ETABS, ROBOT, SmartPlant4D Structural 等等。软件可以输入输出DXF 或SDNF文件，但可能只有一些基本图样而缺少数据。正式版中用户还可以将模型与Xsteel，Prosteel等软件的模型进行交互使用。
·出报报告单。可以创建多种报告单，如材料单或者结构分析的表单，这些表单只需Windows有记事本即可打开。
Space gass基本绘图与编辑命令
1.点击绘图按钮来进行绘图，或者点击建模向导，填入正确数据即可快速建模。可以在结构中点击构件或者接到进行编辑，拖动、删除、移动或者复制。和CAD一样，选框从左至右则选中所包含构件或节点，从右至左则为交叉选择，所以与选框交汇的构件或者节点都会选中。
2.以下是大部分常用操作的快捷方式：
Operation
Keyboard shortcut
Mouse shortcut
Zoom in
Up arrow
Mousewheel forwards
Zoom out
Down arrow
Mousewheel backwards
Zoom full
Right arrow
Zoom previous
Left arrow
Pan down
Ctrl+Up arrow
Ctrl+Mousewheel forwards
Pan up
Ctrl+Down arrow
Ctrl+Mousewheel backwards
Pan left
Ctrl+Right arrow
Shift+Mousewheel forwards
Pan right
Ctrl+Left arrow
Shift+Mousewheel backwards
Pan in 3D renderer
Hold the right mouse button down and move the mouse
Rotate down
Shift+Up arrow
"V"+Mousewheel forwards
Rotate up
Shift+Down arrow
"V"+Mousewheel backwards
Rotate left
Shift+Right arrow
"H"+Mousewheel forwards
Rotate right
Shift+Left arrow
"H"+Mousewheel backwards
Rotate in 3D renderer
Hold the left mouse button down and move the mouse
Enlarge load diagram
"L"+Up arrow
"L"+Mousewheel forwards
Reduce load diagram
"L"+Down arrow
"L"+Mousewheel backwards
Enlarge deflection diagram
"D"+Up arrow
"D"+Mousewheel forwards
Reduce deflection diagram
"D"+Down arrow
"D"+Mousewheel backwards
Enlarge moment diagram
"M"+Up arrow
"M"+Mousewheel forwards
Reduce moment diagram
"M"+Down arrow
"M"+Mousewheel backwards
Enlarge shear force diagram
"S"+Up arrow
"S"+Mousewheel forwards
Reduce shear force diagram
"S"+Down arrow
"S"+Mousewheel backwards
Enlarge axial force diagram
"A"+Up arrow
"A"+Mousewheel forwards
Reduce axial force diagram
"A"+Down arrow
"A"+Mousewheel backwards
Enlarge torsion diagram
"T"+Up arrow
"T"+Mousewheel forwards
Reduce torsion diagram
"T"+Down arrow
"T"+Mousewheel backwards
Enlarge buckling diagram
"B"+Up arrow
"B"+Mousewheel forwards
Reduce buckling diagram
"B"+Down arrow
"B"+Mousewheel backwards
Enlarge stress diagram
"E"+Up arrow
"E"+Mousewheel forwards
Reduce stress diagram
"E"+Down arrow
"E"+Mousewheel backwards
Previous load case
Page up
Next load case
Page down
First load case
Home
Last load case
End
Previous filter
Ctrl+Page up
Next filter
Ctrl+Page down
No filter
Ctrl+Home
Last filter
Ctrl+End
Previous saved view
Shift+Page up
Next saved view
Shift+Page down
First saved view
Shift+Home
Last saved view
Shift+End
Repeat last command
Spacebar