working on Chapter 7

Submitted the first version of Chapter 6 this Monday, finally done! Cheers!

Yet, another important chpater is waiting for more work, Chapter 7. Though I have some ideas about the content and the procedure, it seems that more specific problems need to be addressed through the following persepctives: strength rehabilitation (flexural, shear, axial strength), deformation improvement, design example. Seems that I need to read those available codes and models first.

Keep on high spirit!