2 research outputs found

    Reinforcement of columns using different composite materials

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    The adoption in construction of composite materials made by combining two or more materials to produce a material with improved properties over the separate components has been steadily increasing over the past decades. In the past few years there have been advances in composite manufacturing technology, increased demand for sustainable and eco-friendly building materials, and the need for materials that are lightweight and easy for transportation. For these reason, architects and civil engineers incorporate composites into structural elements to achieve these desired goals and optimize the cost of construction. One of the most common composite materials that was introduced to the industry is fiber reinforced polymer (FRP), produced by combining fibers (carbon, glass, or aramid) with a polymer matrix (epoxy or polyester). FRP materials are lightweight, durable and corrosion resistant, which makes them ideal for use in a wide range of construction applications. This study aims to propose a comparison between four different methods as a viable solution to strengthen and reinforce column structures. The structural behavior of three different composite materials was investigated. One traditional concrete-steel column was tested in the experiment for comparison. The other three columns were reinforced using carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GFRP) and stainless steel respectively. The obtained experimental results were analyzed, and comparison of three different systems of reinforcement for strengthening columns with composite materials was performed

    АрмированиС ΠΊΠΎΠ»ΠΎΠ½Π½ с использованиСм Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ²

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    The adoption in construction of composite materials made by combining two or more materials to produce a material with improved properties over the separate components has been steadily increasing over the past decades. In the past few years there have been advances in composite manufacturing technology, increased demand for sustainable and eco-friendly building materials, and the need for materials that are lightweight and easy for transportation. For these reason, architects and civil engineers incorporate composites into structural elements to achieve these desired goals and optimize the cost of construction. One of the most common composite materials that was introduced to the industry is fiber reinforced polymer (FRP), produced by combining fibers (carbon, glass, or aramid) with a polymer matrix (epoxy or polyester). FRP materials are lightweight, durable and corrosion resistant, which makes them ideal for use in a wide range of construction applications. This study aims to propose a comparison between four different methods as a viable solution to strengthen and reinforce column structures. The structural behavior of three different composite materials was investigated. One traditional concrete-steel column was tested in the experiment for comparison. The other three columns were reinforced using carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GFRP) and stainless steel respectively. The obtained experimental results were analyzed, and comparison of three different systems of reinforcement for strengthening columns with composite materials was performed.Π’Π½Π΅Π΄Ρ€Π΅Π½ΠΈΠ΅ Π² ΡΡ‚Ρ€ΠΎΠΈΡ‚Π΅Π»ΡŒΡΡ‚Π²ΠΎ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ², ΠΈΠ·Π³ΠΎΡ‚ΠΎΠ²Π»Π΅Π½Π½Ρ‹Ρ… ΠΏΡƒΡ‚Π΅ΠΌ объСдинСния Π΄Π²ΡƒΡ… ΠΈΠ»ΠΈ Π±ΠΎΠ»Π΅Π΅ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ² с Ρ†Π΅Π»ΡŒΡŽ получСния ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π°, ΠΎΠ±Π»Π°Π΄Π°ΡŽΡ‰Π΅Π³ΠΎ ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½Π½Ρ‹ΠΌΠΈ свойствами, ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½Ρ‹ΠΌΠΈ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Π°ΠΌΠΈ, Π½Π΅ΡƒΠΊΠ»ΠΎΠ½Π½ΠΎ растСт Π² Ρ‚Π΅Ρ‡Π΅Π½ΠΈΠ΅ послСдних дСсятилСтий. Π—Π° это врСмя ΠΏΡ€ΠΎΠΈΠ·ΠΎΡˆΠ΅Π» прогрСсс Π² Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ производства ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚ΠΎΠ², увСличился спрос Π½Π° устойчивыС ΠΈ экологичСски чистыС ΡΡ‚Ρ€ΠΎΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΠΎΡ‚Ρ€Π΅Π±Π½ΠΎΡΡ‚ΡŒ Π² ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π°Ρ…, ΡΠ²Π»ΡΡŽΡ‰ΠΈΡ…ΡΡ Π»Π΅Π³ΠΊΠΈΠΌΠΈ ΠΈ ΡƒΠ΄ΠΎΠ±Π½Ρ‹ΠΌΠΈ для транспортировки. По этой ΠΏΡ€ΠΈΡ‡ΠΈΠ½Π΅ Π°Ρ€Ρ…ΠΈΡ‚Π΅ΠΊΡ‚ΠΎΡ€Ρ‹ ΠΈ ΠΈΠ½ΠΆΠ΅Π½Π΅Ρ€Ρ‹-строитСли Π²ΠΊΠ»ΡŽΡ‡Π°ΡŽΡ‚ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Ρ‹ Π² конструктивныС элСмСнты для достиТСния ΠΆΠ΅Π»Π°Π΅ΠΌΡ‹Ρ… Ρ†Π΅Π»Π΅ΠΉ ΠΈ ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ стоимости ΡΡ‚Ρ€ΠΎΠΈΡ‚Π΅Π»ΡŒΡΡ‚Π²Π°. Одним ΠΈΠ· Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ распространСнных ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ², прСдставлСнным Π² ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎΡΡ‚ΠΈ, являСтся Π°Ρ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹ΠΉ Π²ΠΎΠ»ΠΎΠΊΠ½Π°ΠΌΠΈ ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€ (FRP), ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹ΠΉ посрСдством объСдинСния Π²ΠΎΠ»ΠΎΠΊΠΎΠ½ (ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄, стСкло ΠΈΠ»ΠΈ Π°Ρ€Π°ΠΌΠΈΠ΄) с ΠΏΠΎΠ»ΠΈΠΌΠ΅Ρ€Π½ΠΎΠΉ ΠΌΠ°Ρ‚Ρ€ΠΈΡ†Π΅ΠΉ (эпоксидная смола ΠΈΠ»ΠΈ полиэстСр). ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ FRP Π»Π΅Π³ΠΊΠΈΠ΅, ΠΏΡ€ΠΎΡ‡Π½Ρ‹Π΅ ΠΈ устойчивыС ΠΊ ΠΊΠΎΡ€Ρ€ΠΎΠ·ΠΈΠΈ, Ρ‡Ρ‚ΠΎ Π΄Π΅Π»Π°Π΅Ρ‚ ΠΈΡ… ΠΈΠ΄Π΅Π°Π»ΡŒΠ½Ρ‹ΠΌΠΈ для использования Π² самых Ρ€Π°Π·Π½Ρ‹Ρ… областях ΡΡ‚Ρ€ΠΎΠΈΡ‚Π΅Π»ΡŒΡΡ‚Π²Π°. ИсслСдованиС Π½Π°Ρ†Π΅Π»Π΅Π½ΠΎ Π½Π° Ρ‚ΠΎ, Ρ‡Ρ‚ΠΎΠ±Ρ‹ ΡΡ€Π°Π²Π½ΠΈΡ‚ΡŒ Ρ‡Π΅Ρ‚Ρ‹Ρ€Π΅ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… ΠΌΠ΅Ρ‚ΠΎΠ΄Π° Π² качСствС ТизнСспособного Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ для укрСплСния ΠΈ усилСния конструкций ΠΊΠΎΠ»ΠΎΠ½Π½. Π˜Π·ΡƒΡ‡Π΅Π½ΠΎ структурноС ΠΏΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ Ρ‚Ρ€Π΅Ρ… Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ². Π’ экспСримСнтС для сравнСния испытана ΠΎΠ΄Π½Π° традиционная Π±Π΅Ρ‚ΠΎΠ½Π½ΠΎ-ΡΡ‚Π°Π»ΡŒΠ½Π°Ρ ΠΊΠΎΠ»ΠΎΠ½Π½Π°. ΠžΡΡ‚Π°Π»ΡŒΠ½Ρ‹Π΅ Ρ‚Ρ€ΠΈ ΠΊΠΎΠ»ΠΎΠ½Π½Ρ‹ усилСны с использованиСм углСпластика, стСклопластика ΠΈ Π½Π΅Ρ€ΠΆΠ°Π²Π΅ΡŽΡ‰Π΅ΠΉ стали соотвСтствСнно. ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Π΅ ΡΠΊΡΠΏΠ΅Ρ€ΠΈΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹Π΅ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΠΏΡ€ΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹, Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ сравнСниС Ρ‚Ρ€Π΅Ρ… Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… систСм армирования для усилСния ΠΊΠΎΠ»ΠΎΠ½Π½ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½Ρ‹ΠΌΠΈ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π°ΠΌΠΈ
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