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一、前言如何使有限的材料,充分地发挥其效用,这是设计人员在工作中经常思考的问题。优化方法为我们在这一领域提供了有力、可靠的手段。本文仅分析土建工程中大量的、经常碰到的梁板结构,其断面尺寸的经济设计;(目标函数)并对构件约束条件作些简化,以避免繁复的计算;而且对构造手册中建议的合适含钢率进行讨论。从结构内力分析中得知,梁板构件虽然同时承受着弯、剪的共同作用(有时甚至是弯、
I. Preface How to make limited materials fully play their role. This is a question that designers often think about in their work. The optimization method provides us with a powerful and reliable means in this field. This paper only analyzes a large number of frequently encountered beam-slab structures in civil engineering, the economic design of their section dimensions, (objective function) and simplify the component constraints to avoid cumbersome calculations, and it is recommended in the construction manual. The appropriate steel content is discussed. From the analysis of structural internal forces, it is known that the girder components are subjected to the combined effects of bending and shearing (sometimes even bending,