Numerical Study on Optimization of Wooden-Steel Hybrid Beams Based on Shape Factor of Steel Component

• Main Author: Le Truong Di Ha
• Other Authors: SHIH, Shen-Guan
• Format: Others
• Language: en_US
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/78180098234723670925

碩士 === 國立臺灣科技大學 === 建築系 === 104 === Nowadays, the composite of steel and concrete is quite popular but it is also important to improve and develop the structural systems especially the construction and design of wooden structure. Furthermore, wood components would reduce the risk of buckling on individual activity of steel and thus leads to more efficient hybrid steel-timber structural systems in the future. As traditional way, designing a beam has been simply achieved and the geometry of the timber-steel-hybrid beam is really ideal advantageous to improve their work. According to the first generation of timber-steel-hybrid beams called “Flitch-beams”, the aim of this study is to follow and develop a method in order to provide more efficient shape factor performance for Flitch-beams. Basing on the main concept of data tables from National Association of Home Builders of the United States (NAHB) builders’ beam showing the capacity of flitch-beams with variety sizes, this study chooses one fixed pattern of 2 wood pieces (2x8’’) inserts by a straight steel-plate-core to evaluate and the optimized morphology among the variety cross-sections is then applied in to the beam as replacing for straight steel-plate-core. The three types Rectangular-section, Hollow-section and I-section which base on the same area condition and material should be assessed properly. The first result shows that the comparison relies on numerical of Maximum bending stress ( ) and deflection at mid span. Following this, the new flitch beam is re-calculated and the results in comparison with the NAHB builders’ beam pattern. Similarly, the final result indicates that the coordination of optimized steel core is more advantageous than the pattern beam.