Experimental and analytical study on dynamic performance of timber-concrete composite beams

Rijal, Rajendra; Samali, Bijan; Shrestha, Rijun; Crews, Keith

doi:10.1016/j.conbuildmat.2014.10.020

Cited by 29 publications

(8 citation statements)

References 2 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AS3600-1994 [3] requires f'c = 32 mpa concrete for slabs. According to the Queensland Business Report, Radiata pine, Jarrah and redwood are the most widely used commercial timber resources in Australian construction [4]. The following tables illustrate composite floor geometry.…”

Section: Methodsmentioning

confidence: 99%

Analytical and Numerical Analysis for the Vibrational Response of Timber-Concrete Composite Floor

2023

Lecture Notes in Civil Engineering

View full text Add to dashboard Cite

This study investigates the vibration characteristics of composite timber-concrete floor systems to provide a reliable benchmark for optimizing composite floor system designs. This paper uses the numerical and analytical methods for evaluation to support more detailed study results and to build a comprehensive model for future research. Through Strand7 and ABAQUS numerical finite element analysis, geometrical layout and beam material effects on the timber-concrete composite floor are thoroughly explored. Meanwhile, the analytical results are further compared with the analytical solution based on the Dunkerley method and AISC. Then 15 kinds of timber-concrete composite floor designs are simulated and numerically tested. It was found that the dimensions of the timber beams and their composition might affect the natural frequencies of the floors. On this basis, this paper proposes future design schemes to provide reliable suggestions for further research.

show abstract

Section: Methodsmentioning

confidence: 99%

Analytical and Numerical Analysis for the Vibrational Response of Timber-Concrete Composite Floor

2023

Lecture Notes in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…e static tests [23,24] have shown that the CHW slab has large rigidity with good bearing capacity. However, large-span floor systems are governed by serviceability requirements rather than strength requirements [25]. Few studies [26] regarding the dynamic properties of the CHW slab and none on-site heel-drop and jumping tests have been conducted.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab

Zhang

Wang²,

Wang³

et al. 2020

Shock and Vibration

View full text Add to dashboard Cite

e large-span floor system being lightweight with low frequency and low damping is prone to suffer severe vibration under human excitations. In this research, the vibration performance of an innovative large-span U-shaped steel-concrete composite hollow waffle (CHW) slab was studied based on field testing and theoretical analysis. First, the modal properties of CHW slab including mode shapes, frequencies, and damping ratio were captured by on-site tests and validated by the finite element method, indicating the CHW slab is a low-frequency floor system with a low damping ratio. Second, the vibration responses of CHW slab under heel-drop and jumping excitations were studied considering the impacts of spatial position, tester number, and activity types. ird, the CHW slab shows excellent vibration serviceability proved by the frequency, accelerations, and human perceptions threshold with the current codes. Meanwhile, the paper gives appropriate threshold values for the CHW slab under impulsive excitation. Finally, the natural frequency formula for the CHW slab derived by the Rayleigh-Ritz energy method agrees well with the measurements.

show abstract

“…Static tests (Hu and Ma, 2012) show that CHW floors have a significant stiffness and excellent bearing capacity similar to a plate. However, serviceability requirements govern large span floor systems rather than strength criteria (Rijal et al, 2015). There is still a lack of studies on the vibration response under human activities.…”

Section: Introductionmentioning

confidence: 99%

Vibration of a U-shaped steel–concrete composite hollow waffle floor under human-induced excitations

Zhang

Wang

et al. 2020

Advances in Structural Engineering

View full text Add to dashboard Cite

The U-shaped steel–concrete composite hollow waffle floor is an innovative slender large-span floor system, where severe vibration may occur under human-induced excitations. In this research, a theoretical analysis and experimental testing are performed to explore the vibration behaviour of the composite hollow waffle floor. First, the natural frequency formula is proposed based on orthotropic thin plate theory, and the main rigidity calculation for the composite hollow waffle floor is given. Second, the mode shape, frequency and damping ratio of the composite hollow waffle floor are captured by on-site tests and validated by analytical and numerical methods, indicating that the floor has a low-frequency with a low damping ratio. Third, the vibration response of the composite hollow waffle floor is obtained by walking and running tests considering the influence of the frequency, spatial position, group size and route; in addition, the relationships between the values involved in the vibration evaluation are discussed. Finally, the composite hollow waffle floor presents satisfactory vibration performance evaluated by the threshold values among the current codes.

show abstract

Experimental and analytical study on dynamic performance of timber-concrete composite beams

Cited by 29 publications

References 2 publications

Analytical and Numerical Analysis for the Vibrational Response of Timber-Concrete Composite Floor

Analytical and Numerical Analysis for the Vibrational Response of Timber-Concrete Composite Floor

Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab

Vibration of a U-shaped steel–concrete composite hollow waffle floor under human-induced excitations

Contact Info

Product

Resources

About