Study of the influence of compressive strength concrete on columns during the design of a multi-floor building

Abstract This work aims to analyze the influence of the compressive strength of concrete columns in the design of a multi-floor building using the CAD/TQS computational tool. The strengths of the columns varied in increments of 5 MPa, from 35 MPa to 90 MPa, with a 35 MPa resistance in the remaining structural elements. Analyses of the horizontal deformability, stability parameters, and optimized sections, as well as quantities and cost of the main materials used (concrete, steel, and formwork), were performed. As a result, a 32% reduction to the total area of the columns was achieved; consequently, a reduction in material quantities and the total cost of the building was also achieved. Thus, greater durability was provided without major costs or loss in structural safety.

摘要 本研究旨在借助CAD/TQS计算工具，分析混凝土柱抗压强度对多层建筑设计的影响。试验中柱抗压强度以5MPa为梯度，取值范围为35MPa至90MPa，其余结构构件均采用35MPa的抗压强度。本研究对水平变形性能、稳定参数、优化截面，以及混凝土、钢材、模板等主要用材的用量与成本展开了分析。结果表明，柱总截面积可降低32%，进而实现建筑用材用量与总成本的缩减。据此，可在无需大幅增加成本且不降低结构安全性的前提下，提升建筑耐久性。