In order to assess the ultimate displacement of reinforced concrete columns based on the deformation characteristics in plastic hinge region, it is very important to determine the plastic hinge length reasonably.

Simplified calculation for the externally prestressed beam based on the plastic hinge;

Nonlinear finite element analysis of reinforced concrete eccentricbeam-column joints with spread-ended beams and the study of plastic hinge;

An improved calculation method for stirrup ratios in plastic hinge regions of concrete piers by using RBF neural network;

By adoption of yield line theory, the author analyses the bearing capacity of square slabs reinforced with carbon fibre reinforced plastic (CFRP) or steel strips and improves Zhang Jiwen s yield line pattern.

Based on the result, the authors put forward the yield line distribution trait:leaning direction of the yield line is within the interval (0°,45°].

The yield line pattern and strength of the plated RC slabs subjected to a uniformly distributed load are analyzed and calculated by employing yield line method,and furthermore,a practical design procedure and corresponding designing tables are also proposed.

The failure mode and plasticity hinge developing processing under the rare earthquake function of the cross truss system were obtained.

Construction displays elasto-plasticity deforming which is nonlinear deformation most concentrating in piers, structural shock-resistant performance is related to the ductility and power-wasting ability of piers, the ability of nonlinear deformation mainly depends on the ability of ductility in the areas of plasticity hinge.