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Structural Behavior of Multi-cell Ferrocement Composite Beams
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Volume Title: ICASGE2023
DOI: ICASGE-RCS
Authors
1Associate Professor, Faculty of Engineering, Menoufia University, Egypt
2Professor, Faculty of Engineering, Menofia University, Egypt
3Menoufia University
Abstract
The term "multi-cell" refers to the sections consisting of several voids separated by small-thickness webs. The light weight of those sections compared to traditional solid sections makes them more suitable for some special structural applications. Since the economic factor is very important in the field of construction, the interests of design engineers are usually directed to finding the best sections and reinforcement materials through which the highest cost efficiency can be achieved. As a construction material, the advantages of ferrocement have been proven over the years in many applications.
This research aims to investigate the efficiency of ferrocement beams with multi-cell (MC) sections reinforced with different types of reinforcing materials under the influence of bending loads. For that purpose, eight beams; six multi-cell ferrocement beams and two reinforced concrete (RC) solid beams were cast and tested under a four-point load system up to failure. All beams have dimensions 200×300×1800 mm and same reinforcement ratio 0.4%. Steel reinforcement bars expanded metal mesh and geogrid mesh were used as main reinforcement for multi-cell ferrocement (MC) beams. To check the suitability of such beam structures, The performance of multi-cell and RC beams was investigated in terms of crack load, load-deflection curves, energy absorption capacity, ductility index, ultimate load-to-weight ratio, crack patterns. The obtained results showed that multi-cell ferrocement beam reinforced with steel bars and those with expanded metal mesh achieved 75 % and 60.5 % of RC beam capacity with 38 % loss in their weights compared to the same RC beam.
This research aims to investigate the efficiency of ferrocement beams with multi-cell (MC) sections reinforced with different types of reinforcing materials under the influence of bending loads. For that purpose, eight beams; six multi-cell ferrocement beams and two reinforced concrete (RC) solid beams were cast and tested under a four-point load system up to failure. All beams have dimensions 200×300×1800 mm and same reinforcement ratio 0.4%. Steel reinforcement bars expanded metal mesh and geogrid mesh were used as main reinforcement for multi-cell ferrocement (MC) beams. To check the suitability of such beam structures, The performance of multi-cell and RC beams was investigated in terms of crack load, load-deflection curves, energy absorption capacity, ductility index, ultimate load-to-weight ratio, crack patterns. The obtained results showed that multi-cell ferrocement beam reinforced with steel bars and those with expanded metal mesh achieved 75 % and 60.5 % of RC beam capacity with 38 % loss in their weights compared to the same RC beam.
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