Dynamic performance of timber-concrete composite flooring systems

Rijal, Rajendra; Samali, Bijan; Crews, K

doi:10.1201/b10571-56

Cited by 7 publications

(3 citation statements)

References 1 publication

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“…Human can feel distract and not comfortable due to the vibration on the floor. From the previous study, vibration happened in the range of 2.0 Hz to 3.0 Hz which is the lowest value of natural frequency [10]. Table 1 shows the floor frequencies depend on the activity and the types of floor construction.…”

Section: Introductionmentioning

confidence: 83%

Walking test on Glulam-concrete composite floor

Ghafar

Ikhsan

Aziz

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Glulam-concrete composite floor (GCC) is a hybrid flooring system which adopted from timber-concrete (TCC) flooring system concrete by replacing the sawn timber joist to Glulam timber joist. The concrete topping was poured on the concrete topping with stiffness connectors were installed to prevent the slip behaviour. Glulam timber is engineered timber that has a bigger strength compared to swan timber. This study is aims to identify the vibration behaviour of 7.6 m × 4.05 m Glulam Concrete Composite (GCC) floor. The walking tests were performed to get the vibration excitation on the floor. The person was walked horizontal and diagonal from one edge to another edge of the floor. The vibration data was recorded by accelerometer and analysis using ARTeMIS software package. The first natural frequency that obtained from both walking tests, (horizontally and diagonally walking test) were 12.9 Hz and 12.39 Hz, respectively. The natural frequencies were higher that 8 Hz as recommended by Eurocode 5, as acceptable value of limitation of vibration serviceability on the flooring system. As conclusion, the vibration behaviour of GCC floor was acceptable and the floor is comfortable to be used.

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Section: Introductionmentioning

confidence: 83%

Walking test on Glulam-concrete composite floor

Ghafar

Ikhsan

Aziz

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…With the development in lighter and longer span composite floor design, in recent years, the dynamic behavior of composite steel-concrete floor systems has become a critical issue for the designers, since the lighter floor systems may be significantly influenced by the human's vibration [11][12][13][14][15][16][17]. The indicated issues would be more critical when it comes to considering the ultra-low vibration environments conditions that are required to explicitly design hospitals and nanotechnology facilities.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Behavior of the Composite Steel–Concrete Beam Floor Systems under Free and Forced Vibration

et al. 2022

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This paper aims to investigate the dynamic behavior of composite steel–concrete floor systems under both free and forced vibrations. A combination of numerical and analytical methods was comprehensively employed to calibrate the suggested solutions to extend the application of accurate numerical methods in future design purposes. Different commercial Finite Element Packages including ABAQUS/CAE and Strand7 were precisely utilized. The obtained results from the Finite Element Simulations were broadly compared with the available international design guidelines including British Standard BS 6472 and international standard ISO 10137. The first 10 active vibration modes in different composite steel–concrete beam floor systems were numerically investigated. Different concrete slabs by respecting the designated various types of secondary and primary steel beam components were comprehensively examined. It was found that the lengths of primary and secondary beams can considerably influence the computed fundamental frequencies and the response factors of the simulated composite floor system. Based on carrying out an extensive parametrical study, further practical recommendations were suggested to provide a reliable benchmark for structural designers.

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“…Excessive vibrations in composite flooring from human activity or other causes may cause human discomfort. There are a variety of design criteria for floor vibrations, such as acceleration, natural frequency, or deflection limit, that are available in design standards that have been widely utilized in past research to guarantee the systems function effectively under dynamic action, as noted by Rijal [19]. The classification of the floor system is necessary for determining the level of human comfort, which is determined by the Fundamental Natural Frequency (FNF).…”

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confidence: 99%

A Preliminary Study on Vibration Response of Profiled Steel Sheet Dry Board (PSSDB) System under Heel-drop Test

Roslan¹,

Majid²,

Jaini³

et al. 2022

IJIE

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This paper aims to evaluate the vibration response of the profiled steel sheet dry board (PSSDB) composite system under heel-drop test. Three (3) specimens with dimensions of 840mm width and 2000mm length were prepared. The specimen consists of a sample without concrete infill (P45HL), foamed concrete as infill (P45FC), and normal concrete as infill (P45NC) material. The specimen was erected using profiled steel sheet (PSS), 1mm thickness, and connected to a dry board (DB), 16mm thickness using self-drilling screws at 200mm screw spacing along the longitudinal direction. A heel-drop test was conducted, and modal analysis was performed using MEscope software. The FRF measurement was carried out using accelerometers, and the time-domain measured responses were converted to FRF to acquire modal characteristics such as natural frequency and mode shape of the structures. The natural frequency of the first mode shape is 17.7Hz, 14.2Hz, and 4.5Hz respectively for specimen P45H, P45FC, and P45NC. It demonstrates that the natural frequency of the specimen without infill and foamed concrete as infill is more than the human comfort limit value of 8Hz, implying that P45HL and P45FC will be comfortable for building occupants.

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Dynamic performance of timber-concrete composite flooring systems

Cited by 7 publications

References 1 publication

Walking test on Glulam-concrete composite floor

Walking test on Glulam-concrete composite floor

Dynamic Behavior of the Composite Steel–Concrete Beam Floor Systems under Free and Forced Vibration

A Preliminary Study on Vibration Response of Profiled Steel Sheet Dry Board (PSSDB) System under Heel-drop Test

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