Location >> Date：2026-05-03
Abstract: On March 26, 2026, the China Association for Engineering Construction Standardization (CECS) issued an announcement approving the "Technical Standard for Timber-Concrete Composite Floor Systems," compiled by Nanjing Tech University and other institutions, as an association standard. Designated as T/CECS 2179-2026, the standard will take effect on August 1, 2026. This standard is a significant achievement in the development of China's timber structure building standardization system during the opening year of the "15th Five-Year Plan," providing a unified technical framework for the design and construction of timber-concrete composite structures.
On March 26, 2026, the China Association for Engineering Construction Standardization issued Announcement No. 2881, declaring the approval and publication of the "Technical Standard for Timber-Concrete Composite Floor Systems." The standard is designated as T/CECS 2179-2026 and will come into effect on August 1, 2026.
The "Technical Standard for Timber-Concrete Composite Floor Systems" was jointly compiled by Nanjing Tech University and other institutions, and successfully passed the review organized by the Committee of Timber and Composite Structures of the CECS. The standard encompasses technical requirements concerning the design, construction, and acceptance of timber-concrete composite floor systems, thereby establishing a unified technical basis for the promotion and application of this novel composite structural system.
A timber-concrete composite floor is a structural floor system formed by combining timber components with concrete slabs using shear connectors. It integrates the lightweight and high-strength characteristics of timber with the superior rigidity and acoustic insulation properties of concrete. This technology fully leverages the advantages of both materials and holds broad application prospects in multi-story timber structure buildings and timber-concrete hybrid structural buildings.
In recent years, with the profound advancement of the "Dual Carbon" strategy and the popularization of green building concepts, timber-concrete composite structures have garnered increasing attention due to their significant advantages in energy conservation and emission reduction. Previously, in the "Guiding Opinions on Promoting the Development of Modern Timber Structures" issued by the Department of Housing and Urban-Rural Development of Jiangsu Province in January 2026, it was explicitly proposed to organize joint research on high-performance materials and components, composite structural systems, seismic and disaster prevention, as well as fire and corrosion resistance, in order to accelerate the formation of core technologies with independent intellectual property rights. The release of the "Technical Standard for Timber-Concrete Composite Floor Systems" serves as an active response to these policy directives.
The developers of the standard stated that its implementation will help standardize the design and construction of timber-concrete composite floor systems, elevate engineering quality and safety levels, and promote the practical application of composite structure technologies in a wider range of engineering projects. Consequently, it will provide essential technical support for the green and low-carbon transformation of China's construction industry.
A relevant representative from the China Association for Engineering Construction Standardization pointed out that standardization is a crucial catalyst for driving technological progress and industrial upgrading. During the "15th Five-Year Plan" period, China's timber structure building standard system will be further refined, providing a robust guarantee for the large-scale and high-quality development of the modern timber structure industry.
(Source: China Association for Engineering Construction Standardization)
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