Cost-Effective Bulk Glass Reinforced Composite Columns
Cost-Effective Bulk Glass Reinforced Composite Columns
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经济高效的大块玻璃增强复合柱
DOI：
10.3390/jcs4020047
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发表时间：
2020
影响因子：
3.3
通讯作者：
R. Guldiken
中科院分区：
文献类型：
--
作者：
J. Cotter;R. Guldiken
建筑成本一直在增加，主要源于材料成本的增加。解决这个问题的一种潜在方法是引入用于结构应用的新型复合材料。由于其低成本和高强度，大块玻璃可能被证明是一种优异的复合材料。将块状钠钙玻璃引入结构应用并非易事。由于玻璃的独特性能，例如其相对较低的杨氏模量（与钢相比）和脆性，复合玻璃已被证明是困难的。引入了玻璃增强复合柱 (GRCC) 的新颖概念，该概念可受益于玻璃在结构应用中的独特性能。结果表明，GRCC 的设计成本预计比典型木结构构件低 11%。此外，GRCC 预计比类似强度的结构钢型材具有 50% 的成本优势。通过解释有限元建模的结果（迭代进行以形成屈曲载荷与成本曲线），确定了随着玻璃百分比增加而出现的三个区域。这些区域还存在由其他材料（例如钢）制成的柱。此外，有限元模型 (FEM) 确定的剪切应力值比典型施胶剂的剪切强度值更小。总之，尽管 GRCC 具有由非降解材料组成的额外优势，但 GRCC 比钢材具有显着的成本优势（成本降低高达 50%），与结构木材相比具有轻微的成本优势。
The cost of construction has been increasing, stemming mostly from increased material costs. One potential method to address this issue is the introduction of novel composites for use in structural applications. Bulk glass may prove to be a superior compositing material due to its low cost and high strength. The introduction of bulk soda-lime glass to structural applications is nontrivial; due to glass’ unique properties, such as its relatively low Young’s modulus (when compared to steel) and brittleness, compositing glass has proven difficult. A novel concept of a glass-reinforced composite column (GRCC) is introduced that works to benefit from glass’ unique properties for structural applications. The results indicate that GRCCs can be designed that have costs that are estimated to be 11% less than typical timber construction members. Additionally, GRCCs are estimated to provide a 50% cost advantage over similarly strong structural steel sections. By interpreting the results of finite element modeling, which was conducted iteratively to form buckling load to cost curves, three regions were identified that occur as the glass percentage is increased. These regions also exist with columns made of other materials (such as steel). Additionally, the finite element modeling (FEM)-determined shear stresses have smaller values than the shear strengths of typical sizing agents. In conclusion, GRCCs provide significant cost advantages (up to 50% cost reduction) over steel, and slight cost advantages when compared to structural timbers, although GRCCs have the added benefit of consisting of non-degrading materials.