Simulation Analysis of Reliability of Bearing Capacity of Composite Pile Foundation in Super High-Rise Buildings
In order to improve the safety of super high-rise buildings,a reliability simulation method for the bear-ing capacity of composite pile foundation in super high-rise buildings was put forward.Firstly,functional relationships were established.And the ultimate bearing capacity of flexible and rigid piles were calculated respectively.Then,the influence of friction at the pile side,resistance at the pile end,and variation parameters of pile length on the bearing capacity were analyzed.After considering the safety factor of super high-rise buildings and soil properties,we evalua-ted the load effect of composite pile foundation by using dead load and live load indicators.Furthermore,a model of random variable was built to calculate the standard deviation of different reliability indicators.Finally,based on various parameters,the calculation for the reliability of bearing capacity of composite pile foundation was completed.The simulation results show that the values obtained by the proposed method are very close to the actual values,indi-cating that the accuracy of analysis result of the method is relatively high.
Composite pile foundationBearing capacity analysisReliability calculationLoad-bearing character-isticsStandard deviation of reliability
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