Design and Optimization of Beam Slab Foundation

• 1、College of Architectural Engineering, Northeast Dianli University,Jilin 132012

Abstract：The type selection and design of the wind turbine foundation play a vital role in reducing the structure cost and guaranteeing the safety of the wind turbine operation. The wind turbine foundation is a necessary condition for guaranteeing the safe and normal operation of wind turbine. The wind foundation is an important engineering design of wind farms, as well as an important means to control the project cost.This wind field is the first project using the beam slab prestressed anchor foundation in Inner Mongolia. This paper checks and calculates the force, and designs the turbines beam slab foundation and plate type foundation of 1.5MW, 2.5MW, 3.0MW. Compared with the cost before and after optimization, the margin of the original beam slab foundation desgined by this wind field is relatively large. Using the Ansys finite element software, this paper optimizes the size of each scheme with the monolithic concrete model, then calculates and compares the engineering cost of each scheme. Compared with the cost before and after optimization, the margin of the original beam slab foundation desgined by the wind field is relatively large. Analyseing the engineering cost of wind turbine foundation of the beam plate and circular plate type foundation, it can be found that the economy character of the beam slab foundation increases more quickly. It provides an important reference for other similar projects and design experience for design staff engaged in such design.

Keywords： wind power wind power generation beam slab foundation plate slab foundation；optimization design