Determination method of initial completion initial cable force of cable-stayed bridge
A determination method and technology for cable-stayed bridges, applied in special data processing applications, instruments, electrical and digital data processing, etc. Practical engineering application value, improving solution accuracy and efficiency, and the effect of small calculation errors
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[0012] The invention provides a method for determining the initial cable force of a cable-stayed bridge based on the ANSYS platform. The method takes the design cable force as the target value, considers the geometric nonlinear effect, and iteratively solves and corrects the initial strain of the cable under the action of a constant load. , the method is specifically: first assume that any set of initial cable forces are added to the stay cables in the form of initial strain, add dead loads (first-period dead load and second-period dead load) and calculate, and extract the calculated and check whether the error between the cable force and the target cable force is within the allowable range. If the error is too large, modify the initial strain of the stay cable through the difference method, and then recalculate until the error is within the allowable range. The last time The initial strain of a set of stay cables used in the calculation is multiplied by the elastic modulus of ...
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