ABSTRACT Long-span timber-concrete composite (TCC) floor systems have the potential to address the design challenges for conventional wooden floors in residential multi-storey timber frame buildings. The aim of this paper is to develop a design approach for long-span timber-concrete composite floor system of 6–9 m. A framework based on value-driven design approach has been developed for integration of results from graphical multi-objective optimisation, spreadsheet-based analysis, structural static and dynamic finite element analysis, and multi-criteria decision making. To verify the developed framework, a residential five-storey timber frame building as a case study has been studied. Optimal design includes optimised thickness of the concrete and optimised smeared stiffness of connectors for three different comfort classes A to C in descending order. TCC floor with span length 7.3 [m] belonging to comfort class A and TCC floor with span length 9.0 [m] belonging to comfort class C has been chosen as optimal solutions. The results indicate that proposed and innovative design approach is a promising tool for developers, architects and structural engineers when designing optimal long-span timber-concrete composite floor system.

中文翻译：

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多层木结构住宅大跨度木-混凝土复合楼板的价值驱动设计方法

摘要 大跨度木-混凝土复合 (TCC) 地板系统有可能解决住宅多层木结构建筑中传统木地板的设计挑战。本文的目的是为 6-9 m 的大跨度木-混凝土复合楼板系统开发一种设计方法。已经开发了一个基于价值驱动设计方法的框架，用于集成图形多目标优化、基于电子表格的分析、结构静态和动态有限元分析以及多标准决策制定的结果。为了验证开发的框架，以住宅五层木结构建筑为例进行了研究。优化设计包括优化的混凝土厚度和优化的连接器涂抹刚度，以降序排列三种不同的舒适等级 A 到 C。选择跨长 7.3 [m] 的 TCC 地板属于舒适等级 A 和跨长 9.0 [m] 的 TCC 地板，属于舒适等级 C 的最佳解决方案。结果表明，在设计最佳大跨度木-混凝土复合地板系统时，所提出的创新设计方法是开发商、建筑师和结构工程师的一种很有前途的工具。