The content of the book is a continuation of the previous book that was published in Poland in 2001, co-author Professor Andrzej Flaga. It refers to regulation of voltages and deformations in combined structures (in constructions with cables or guy ropes)and is provided with our copyright. The spring was used as the sensor of deformation and the beam (cantilever and double-support)in combined construction was reviewed. Now in the this book, framed and spatial combined structures with application electromechanical and fibre-optic sensors are considered The control behaviour of constructions at all phases of their life cycle and prior preventive alarm without participation of the person is an actual problem as well as the considerable achievement of technical development and new technologies.