Ya Ou

Central South University of Forestry and Technology | CSUFT · School of Civil Engineering

Concrete-timber composite floor systems have become increasingly popular due to their high sustainability and ease of construction. This paper presents a novel lightweight concrete-timber floor panel system with a fibre reinforced polymer-timber waffle-shaped core between the concrete and timber layers. Digital fabrication techniques and computer-n...

Hybrid timber-concrete (HTC) floor systems are well-suited for prefabricated construction and so have seen widespread use in modern sustainable buildings. This paper investigates a novel extension to such systems by introducing a corrugated core between tensile timber and compressive concrete layers. This new ‘HTCC’ floor panel system is hypothesis...

Timber-concrete composite (TCC) floor panels have gained wide acceptance in office and residential construction due to their lightweight, low cost, and low carbonfootprint. A typical TCC floor panel consists of a concrete layer as the compression element and a timber layer as the tensile reinforcement. However, in many of these TCC floor panels, pa...

Existing studies have shown that bonding a ±45° biaxial GFRP under CFRP laminate can significantly improve the load-carrying capacity and ultimate deformation of CFRP–concrete bonded joints. In such a bonding configuration, the GFRP interlayer is wider than the CFRP laminate so that the interfacial stress can be redistributed to achieve a higher fr...

This paper presents an analytical study on the bond behavior of the double-lap FRP-to-steel bonded joint subjected to temperature variation. Closed-form solutions for the full-range bond behavior are derived and validated based on a fully reversible local interfacial bond-slip relation. Besides, finite element (FE) simulations considering the inter...

Timber-concrete composite panels are commonly used as a sustainable alternative for reinforced concrete floor construction systems. Their performance also continues to advance with new approaches to interfacial shear connection and layer composition, for example as three-layer sandwich panels with a concrete compressive face layer, timber tensile f...

Based on the established system of concrete-filled fiber-reinforced polymer (FRP) tube (CFFT) in civil engineering and construction industry, this research presents a novel fabrication method for freeform FRP formwork through an additive process of winding FRP fabric with industrial robots. Different from the filament winding or fused deposition mo...

Based on the monotonic tensile test of grouted sleeve specimens conducted, this paper uses multifactor regression analysis to construct the equivalent constitutive relationship of grouted sleeve specimens under uniaxial tension. The study based on this constitutive relationship of grouted sleeves and the effect of bond and slip between steel and co...

This research presents a novel method of robotic fabrication for customizable fiber-reinforced polymer (FRP) tubular formworks, which also function as reinforcements for large-scale structural components. This process is achieved by the spatial weaving of FRP fabric driven by a robotic arm, and calibrated with the fast-cure resin which is applied o...

Hybrid timber-concrete (HTC) floor systems have gained wide acceptance within the structural engineering community as an alternative for reinforced concrete (RC) floor systems. They consist of a concrete layer and a timber layer acting predominantly in compression and tension, respectively. HTC floor systems are lightweight and with less embodied e...

Hybrid timber-concrete (HTC) floor panels are lightweight and suitable for prefabrication, making them an attractive alternative to conventional reinforced concrete floor systems. The structural stiffness and ultimate strength of HTC systems is heavily dependent upon the level of composite action achieved between timber and concrete layers, with sh...