This paper compares the basic anchorage lengths of the plain steel-bar and the deformed bar,analyzes on the reasons why the basic anchorage length of the deformed bar is longer,and puts forward the correction coefficients of the basic anchorage lengths under different conditions of the actal engineering.

Some problems during the construction of concrete structure are discussed in this paper,mainly including reinforcement saving,reinforcement specialization process,development domestic and abroad,as well as main advantages and problems.

Stochastic model of chloride ion concentration at steel-concrete interface in marine environment;