Multi-Span Composite Timber Beams with Rational Steel Reinforcements
Wooden multi-span beams with steel reinforcement were studied experimentally on a stationary stand using an eight-point loading scheme that simulated a load uniformly distributed over the beam span. The studies were carried out on beams with a span of 4.8 m with a cross-sectional area of 40 mm × 80...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/11/2/46 |
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| author | Mikhail Lukin Evgeny Prusov Svetlana Roshchina Maria Karelina Nikolay Vatin |
| author_facet | Mikhail Lukin Evgeny Prusov Svetlana Roshchina Maria Karelina Nikolay Vatin |
| author_sort | Mikhail Lukin |
| collection | DOAJ |
| description | Wooden multi-span beams with steel reinforcement were studied experimentally on a stationary stand using an eight-point loading scheme that simulated a load uniformly distributed over the beam span. The studies were carried out on beams with a span of 4.8 m with a cross-sectional area of 40 mm × 80 mm, reinforced in the stretched zones of the cross-section with rods made of hot-rolled steel reinforcement of A400 class. The rational zones for the location of reinforcements in the tensioned and compressed zones of the beams were determined. The rational placements of reinforcement in the support and span zones was based on the numerical simulation of the volumetric stress state calculated using the finite element method. It was experimentally confirmed that the failure of wood composite beams had a plastic nature and occurred only along normal sections. This excluded the possibility of brittle fracture from shear stresses and ensured the operational reliability of structures as a whole. It was shown that the proposed rational reinforcement of wooden beams increased their bearing capacity by 175% and reduced bearing deformability by 85%. The results obtained indicated high efficiency of the application of the developed method of reinforcement in beams of roofs and floors of buildings. |
| first_indexed | 2024-03-09T03:19:17Z |
| format | Article |
| id | doaj.art-cf33ca0d03c94792a7dcb2d5ed87b376 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T03:19:17Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-cf33ca0d03c94792a7dcb2d5ed87b3762023-12-03T15:13:43ZengMDPI AGBuildings2075-53092021-01-011124610.3390/buildings11020046Multi-Span Composite Timber Beams with Rational Steel ReinforcementsMikhail Lukin0Evgeny Prusov1Svetlana Roshchina2Maria Karelina3Nikolay Vatin4Vladimir State University named after Alexander and Nikolay Stoletovs, 600000 Vladimir, RussiaVladimir State University named after Alexander and Nikolay Stoletovs, 600000 Vladimir, RussiaVladimir State University named after Alexander and Nikolay Stoletovs, 600000 Vladimir, RussiaMoscow Automobile and Road Construction University, 125319 Moscow, RussiaPeter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaWooden multi-span beams with steel reinforcement were studied experimentally on a stationary stand using an eight-point loading scheme that simulated a load uniformly distributed over the beam span. The studies were carried out on beams with a span of 4.8 m with a cross-sectional area of 40 mm × 80 mm, reinforced in the stretched zones of the cross-section with rods made of hot-rolled steel reinforcement of A400 class. The rational zones for the location of reinforcements in the tensioned and compressed zones of the beams were determined. The rational placements of reinforcement in the support and span zones was based on the numerical simulation of the volumetric stress state calculated using the finite element method. It was experimentally confirmed that the failure of wood composite beams had a plastic nature and occurred only along normal sections. This excluded the possibility of brittle fracture from shear stresses and ensured the operational reliability of structures as a whole. It was shown that the proposed rational reinforcement of wooden beams increased their bearing capacity by 175% and reduced bearing deformability by 85%. The results obtained indicated high efficiency of the application of the developed method of reinforcement in beams of roofs and floors of buildings.https://www.mdpi.com/2075-5309/11/2/46timber–steel hybrid beamsteel-reinforcedglued-in rodsglulamgirdersstrengthening |
| spellingShingle | Mikhail Lukin Evgeny Prusov Svetlana Roshchina Maria Karelina Nikolay Vatin Multi-Span Composite Timber Beams with Rational Steel Reinforcements Buildings timber–steel hybrid beam steel-reinforced glued-in rods glulam girders strengthening |
| title | Multi-Span Composite Timber Beams with Rational Steel Reinforcements |
| title_full | Multi-Span Composite Timber Beams with Rational Steel Reinforcements |
| title_fullStr | Multi-Span Composite Timber Beams with Rational Steel Reinforcements |
| title_full_unstemmed | Multi-Span Composite Timber Beams with Rational Steel Reinforcements |
| title_short | Multi-Span Composite Timber Beams with Rational Steel Reinforcements |
| title_sort | multi span composite timber beams with rational steel reinforcements |
| topic | timber–steel hybrid beam steel-reinforced glued-in rods glulam girders strengthening |
| url | https://www.mdpi.com/2075-5309/11/2/46 |
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