The new specification version PKPM2010 design software V2.1 version has been published. A lot of test and trial showed that the new version of the software's analytical ability, efficiency have been improved dramatically. It is more close to the design requirements, and the operation of the software interface more friendlily. This paper introduced the improvement of software structure V2.1 version of the technology and the new feature, which provide a reference for the design personnel.

In this paper, a 2D constitutive model of concrete and steel for nonlinear analysis of reinforced concrete shear wall is established. The compressive, tensile mechanical behavior of concrete are described respectively. Bearing capacity and deformation of reinforced concrete shear wall under cyclic loading can be analyzed accurately. To verify the applicability of the model, the nonlinear mechanical behavior of the single shear walls under cyclic loading is calculated, the results shows that the model can effectively describe hysteretic characteristics of reinforced concrete shear wall, correctness and effectiveness of this model are verified initially.

Survey and design industry in the construction field, which take the first application of computer technology in China, has become a developed industry.PKPM software, which combines structural analysis and construction plans in one platform, is the most widely used software in China.However, the exchange of information between different software is mainly done by hand, which badly hinders the software from further popularization.It lies in the establishment of the "standard" to solve the problem of information exchange and data sharing.With a uniform standard, there will be a common language to transfer information between different systems.For this purpose, the IAI organized IFC standards.In this paper, the data interface from PKPM to the IFC is introduced.