WU Yun-fang, ZHANG Liang-liang, SU Yao-cong. Optimization of Large Span Double-layer Torsional Reticulated Shell[J]. Journal of Civil and Environmental Engineering, 2004, 26(2): 59-62.
WU Yun-fang, ZHANG Liang-liang, SU Yao-cong. Optimization of Large Span Double-layer Torsional Reticulated Shell[J]. Journal of Civil and Environmental Engineering, 2004, 26(2): 59-62. DOI: 10.11835/j.issn.1674-4764.2004.02.014.
The objective function of minimum cost is established for double layer torsional reticulated shell
taking the rise-span ratio
grid size and shell thickness as design variables. Based on the exhaustion and 0.618 methods
the computing program LSD has been developed. For the double layer torsional reticulated shell with the span of 50 m to 80m
the optimal grid size and thickness have been obtained for systems of light roof materials with different spans. Empirical formulas are deduced from the results.