In the paper are discussed some forms of structures regularities applied in authors works in period of 41 years of his scientific researches. Are shown the manners of structures description, its analysis and synthesis, for space bar coverings single and two-layered, flat, cylindrical, barrel, conical and many other types. One of the most interesting proposals are space bar domes of UNIDOM type. Are pointed some different kinds of regularity for such structures, its advantages and weak sides. In range of structure synthesis are pointed own works and doctor theses elaborated in cooperation with author. The existing professional specialized programs and possible there manners of structure description by user are commented, too. In certain range is mentioned also regularity of thin-walled bars used as elements of structure and its influence on strength calculations.