Consider the structure and applied actions shown in the adjoining figure. The frame is subjected to a uniformly distributed load on AB, an initial curvature in CD and support settlement at A.
Use the dimensions and load values in the table shown in the attachment.
Analyse the structure for all actions applied simultaneously and determine the reactions, member forces and displacement required in the table below.

In a unit cell of fcc structure, indicate the position of one of the tetrahedral interstitial sites by plotting the corresponding tetrahedron. do the same for one of the octahedral interstitial sites (in a separate fcc unit cell). mark the positions of all the tetrahedral and octahedral interstitial sites in the unit cells. how many equivalent tetrahedral sites and how many equivalent octahedral sites are contained in a fcc unit cell, respectively. what is the coordination number for a tetrahedral site and what is the coordination number for an octahedral site?