Results 11 to 20 of about 245 (231)

Digital Prefabrication of Lightweight Building Elements for Circular Economy: Material-Minimised Ribbed Floor Slabs Made of Extruded Carbon Reinforced Concrete (ExCRC)

open access: yesBuildings, 2023
To reduce resource consumption and the carbon footprint of the construction industry, new construction principles that stipulate the minimisation of materials are urgently needed. Floor slabs show high potential for saving materials and CO2 emissions, as
Sven Bosbach   +5 more
doaj   +1 more source

Implications upon using exterior post-tensioning tendons to retrofit a low strength concrete waffle slab [PDF]

open access: yesMATEC Web of Conferences, 2019
A common problem when casting reinforced concrete structures is to have a lower concrete compressive strength as opposed to what has been assumed in design. The deflections that may occur under the serviceability conditions can exceed the maximum allowed.
Faur Andrei, Jacint Virág
doaj   +1 more source

Building energy and exergy analysis of the light-weight roofs compared with the traditional ones in different climates

open access: yesEnergy Reports, 2023
A significant research gap exists concerning the thermal properties of lightweight roofs, as extensive investigations have predominantly focused on their mechanical characteristics.
Mohammad Hossein Jahangir   +1 more
doaj   +1 more source

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

open access: yesShock and Vibration, 2020
The 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
Xi Zhang   +3 more
doaj   +1 more source

Comparative Study of Conventional Slab, Flat Slab and Waffle Slab by using Finite Element Method

open access: yesInternational Journal for Research in Applied Science and Engineering Technology, 2022
Abstract— The slab is the main component of the structure. There are different types of slab used in different structure and gives better appearance to the structure. In this project, three type of slab to be used. The comparative study of Conventional slab, flat slab, and waffle slab under seismic condition to be analyzed.
Monika D. Pethe, Amey Khedikar
openaire   +1 more source

ESTUDOS PRELIMINARES SOBRE A VIABILIDADE DA UTILIZAÇÃO DE GARRAFAS DE POLIETILENO (PET) EM LAJES ESTRUTURAIS

open access: yesColloquium Exactarum, 2016
Polyethylene bottles (PET) have been widely used in the world nowadays, whether by easily design, durability or ease of handling , transportation and storage.
Gabriela Alves de Lima Cardoso   +2 more
doaj   +1 more source

Seismic performance of waffled-slab floor buildings [PDF]

open access: yesProceedings of the Institution of Civil Engineers - Structures and Buildings, 2009
The codes used in seismic design of waffled-slab floors buildings (WSFB), such as the Spanish NCSE-02 earthquake-resistant design code, assign them restricted ductility, utilise linear structural analysis based on modal analysis, but also consider the structural ductility concept.
J. Vielma, A. H. Barbat, S. Oller
openaire   +1 more source

Experimental Study of Punching Shear on Reinforced Concrete Waffle Slabs Strengthened by CFRP Sheets

open access: yesTikrit Journal of Engineering Sciences
For the last five decades, researchers have been studying the punching shear of two-way reinforced slabs at column supports in structural testing laboratories. Limited tests are available on retrofitted waffle slab punching behavior. These are necessary
Ridha S. Khamees, Mohammed S. Abd Ali
doaj   +1 more source

Numerical analysis of torsional tangent rigidity of reinforced concrete waffle slab

open access: yesRevista IBRACON de Estruturas e Materiais, 2019
This research work deals with the analysis of torsional tangent rigidity of reinforced concrete waffle slabs by comparisons of the numerical analysis with results of experimental tests, with calculations performed using the ATENA program.
C. C. NUNES
doaj   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami   +4 more
wiley   +1 more source

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