A new method for setting up hoisting point of reinforcement cage of the in-line underground diaphragm wall
The condition of the reinforcement cage during hoisting can be treated as a multi-supported overhanging beam under the combined action of distributed and concentrated loads,where the support corresponds to the hoisting point.Based on the singular function and Laplace transform,the deflection curve equation of the beam is solved,and a new method of setting the optimal lifting point of the in-line reinforcement cage is proposed in combination with the genetic algorithm.The feasibility of the method is evaluated and verified by calculation examples and numerical simulation.The results show that the proposed method can control the deformation of the reinforcement cage during hoisting more effectively than the existing method of determining the hoisting point.
hoisting point for reinforcement cagesingular functionLaplace transformgenetic algorithmfinite element simulation
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