Application of L-M Algorithm in High-Rise Structure System Selection

Due to the rapid development of society and the enhancement of national economic strength, there are many high-rise buildings that are constantly breaking new records in terms of both building height and building shape. Therefore, there are many out of gauge high-rise buildings, which exceed the requirements of the current specifications in at least one aspect. In order to ensure the safety, practicality and economy of the structure, it is necessary to select and optimize the structural system and analyze the seismic performance of the selected system for the super high-rise structure. L-M algorithm is a structural optimization algorithm that can be used to solve the design of high-rise structural systems. The main features of the algorithm are as follows: (1) all optimal structures and their corresponding loads can be found efficiently; (2) Integrate existing data, such as strength, stiffness and deflection characteristics, into one model; (3) The L-M method has been proved to be more accurate than other methods in solving the structural problems of nonlinear equations. The selection of high-rise structure system based on L-M algorithm is very simple. The main idea of this selection is to use the maximum value of L-M curve as the standard for selecting high-rise structure system. In other words, if two or more systems have similar L-M curve values, the system with higher values than other systems should be selected. This selection method can be used in many cases, such as when multiple systems have similar values but different shapes, sizes and heights, or when multiple systems have the same shapes and sizes but different heights.