关键词: 基础设计, 局部受压, 抗压强度提高系数

Abstract:

Combined with an engineering example, the calculation of local pressure on wind turbine foundation in tower foundation design software (WTF) is discussed. When calculating the local compressive stress and section size of high strength grouting material under the upper anchor plate, the software calculation results cannot be directly used. Instead, the concrete strength enhancement coefficient  should be calculated according to the actual local compression area  and the local compression area , and the software calculation results should be reviewed. In the calculation of local compression and section size of concrete under high-strength grouting material, when the calculated base area  of local compression is greater than or equal to 3 times the local compression area , the software calculation results can be directly adopted. When the calculated base area  of local compression is less than 3 times the local compression area , the concrete strength enhancement coefficient  should be calculated according to the calculated base area  and local compression area  of actual local compression, and the software calculation results cannot be used directly. Designers should strengthen the theoretical knowledge learning, in-depth understanding of norms, familiar with the characteristics of software and the scope of use, not blindly rely on the software calculation results.

Key words:

foundation design, local compression, concrete strength enhancement coefficient