![The rigid square frame in the figure consists of the four sidebars AB, BC, CD and DA plus two diagonal bars AC and BD, which pass each other freely E. By means The rigid square frame in the figure consists of the four sidebars AB, BC, CD and DA plus two diagonal bars AC and BD, which pass each other freely E. By means](https://haygot.s3.amazonaws.com/questions/1770464_bb5827642eaa4beb995700a95352e71a.jpg)
The rigid square frame in the figure consists of the four sidebars AB, BC, CD and DA plus two diagonal bars AC and BD, which pass each other freely E. By means
![Calculation model of rigid square foundations with bi-directional " Sq... | Download Scientific Diagram Calculation model of rigid square foundations with bi-directional " Sq... | Download Scientific Diagram](https://www.researchgate.net/publication/319124167/figure/fig2/AS:530468254359553@1503484895280/Calculation-model-of-rigid-square-foundations-with-bi-directional-Sq-100-and.png)
Calculation model of rigid square foundations with bi-directional " Sq... | Download Scientific Diagram
![The rigid rotation of the square. (a) Real rotation displacement; (b)... | Download Scientific Diagram The rigid rotation of the square. (a) Real rotation displacement; (b)... | Download Scientific Diagram](https://www.researchgate.net/publication/333905899/figure/fig1/AS:798637642752000@1567421460339/The-rigid-rotation-of-the-square-a-Real-rotation-displacement-b-approximation-of.png)