{"id":14915,"date":"2024-09-04T09:05:30","date_gmt":"2024-09-04T09:05:30","guid":{"rendered":"https:\/\/ruregold.mediaengine.it\/it\/strengthening-beams-columns-and-beam-column-nodes-with-hpfrc-microgold-steel-fibre-reinforced-micro-concrete\/"},"modified":"2024-09-04T09:05:32","modified_gmt":"2024-09-04T09:05:32","slug":"strengthening-beams-columns-and-beam-column-nodes-with-hpfrc-microgold-steel-fibre-reinforced-micro-concrete","status":"publish","type":"post","link":"https:\/\/ruregold.mediaengine.it\/en\/strengthening-beams-columns-and-beam-column-nodes-with-hpfrc-microgold-steel-fibre-reinforced-micro-concrete\/","title":{"rendered":"Strengthening beams, columns and beam-column nodes with HPFRC MicroGold Steel fibre-reinforced micro-concrete"},"content":{"rendered":"\t\t
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Micro Gold Steel, HPFRC fibre-reinforced micro-concrete is the ideal solution for strengthening beams, columns and beam-column nodes.<\/h2>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Microscalcestruzzi\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The technical specifications of Micro Gold Steel<\/strong><\/span><\/a>, HPFRC fibre-reinforced micro-concrete<\/a> offer numerous advantages:<\/h5>\n<\/div>\n
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\u00b7 reduction or elimination of strengthening reinforcements;<\/h5>\n
\u00b7 low usage thickness (approx. 2-5 cm);<\/h5>\n
\u00b7 reduced weight increase of the existing structure.<\/h5>\n<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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As has been noted, existing columns in reinforced concrete<\/strong> may be subject to structural weaknesses<\/strong> against the following stresses:<\/p>\n

\u00b7  insufficient capacity to resist combined axial and flexural forces;
\u00b7  insufficient capacity to resist shear forces.<\/p>\n

Therefore, the requisites<\/strong> that must be satisfied by concrete columns are as follows:<\/p>\n

\u00b7  appropriate rigidity of the element;<\/strong>
\u00b7  sufficient resistance of the section;<\/strong>
\u00b7  necessary ductility of the resisting element.<\/strong><\/p>\n

Using fibre-reinforced concrete FRC<\/strong><\/a> means that it is possible to reduce the thickness of the<\/strong> jacketing<\/strong> applied <\/strong>to the column, increasing the performance <\/strong>of the strengthened element, while reducing the reinforcement.<\/p>\n

This solution involves installing the FRC system, <\/strong>applying it to the columns<\/strong> as a jacket (even without reinforcement<\/strong>) consisting of high-performance fibre-reinforced<\/strong> micro-concrete, at a reduced thickness (about 2<\/strong> to 5<\/strong> cm) depending on the degree of strengthening to be achieved.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Jacketing\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Structural strengthening of beam-column node panel<\/strong><\/h3>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Rinforzo\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Reinforcing<\/strong> beam-column node<\/strong> panels represents an interesting application for increasing the capacity of the dissipation zones of reinforced concrete frames.<\/strong><\/p>\n

This type of application is particularly useful when applied to the non-confined portion of the node panel, by applying a jet of FRC micro-concrete<\/strong><\/div>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Strengthening against shear and flexural forces in beams<\/strong><\/h3>\n<\/div>\n<\/div>\n
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In the same way as columns, pre-existing reinforced concrete<\/strong> beams<\/strong> may present severe structural deficiencies <\/strong>rendering it necessary <\/strong>to intervene by applying flexural and shear strengthening<\/strong>. A similar situation may arise when a building undergoes a change of intended use<\/strong> or is the subject of seismic improvement<\/strong> work.<\/p>\n

In such cases, the use of structural strengthenings<\/strong>, such as FRCM<\/strong> and FRP<\/strong>, may not be sufficient to meet the new structural requirements<\/strong>, meaning it may be necessary to intervene by increasing the initial section<\/strong>.<\/p>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Rinforzo\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The use of HPRFC fibre-reinforced concrete <\/strong>may replace<\/strong> and\/or supplement<\/strong> the ordinary flexural and shear reinforcements<\/strong> that the original section lacks<\/strong>.
The use of HPRFC fibre-reinforced concrete <\/strong>may replace<\/strong> and\/or supplement<\/strong> the ordinary flexural and shear reinforcements<\/strong> that the original section lacks<\/strong>.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Micro Gold<\/span> Steel<\/span><\/strong><\/a><\/h2>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"micro-gold-steel-confezione\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Micro Gold Steel<\/span><\/a><\/strong> is the metal fibre<\/strong>-reinforced premix<\/strong> designed to improve seismic resistance<\/strong> and strengthen reinforced concrete structures<\/strong>,
even without the use of additional metallic elements.<\/p>\n

Approx. 103.5 Kg unit consisting of:
\u2022 Part A – No. 4 bags of dry premix of 25 Kg\/each
\u2022 Part B – No. 1 3.5 Kg box of steel fibres.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"resistenza-fuoco-ruregold-icona\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"resistente-gelo-disgelo-ruregold-icona\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"prodotto-facile-posa-ruregold-icona\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"duttilita-ruregold-icona\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Fire resistant<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Resistant to freeze\/thaw cycles<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Ease of application<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Strain-hardening behaviour<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tDownload the FRC structural strengthening and fibre-reinforced micro-concretes brochure in PDF format!<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Do you need more information? <\/strong><\/h5>\n
Click on the button at the bottom of the page,<\/strong><\/h5>\n
one of our experts will contact you as soon as possible!<\/strong><\/h5>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

"Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? 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