MVME2303模擬量輸入模塊
εccu的確定（基于橫截面幾何）κv=剪切的粘結相關(guān)系數κε=FRP應變的效率系數，等于0.55，以說(shuō)明觀(guān)察到的約束斷裂應變與拉伸試驗確定的斷裂應變之間的差異θp=塑性鉸鏈旋轉需求ρf=FRP配筋率ρg=縱向鋼的面積比鋼筋與受壓構件橫截面積之比（As/bh）ρl=縱向鋼筋比ρs=非受壓鋼筋比σ=標準偏差τb=近表面安裝FRP筋的平均粘結強度，psi（MPa）ψe=用于根據鋼筋涂層修改延伸長(cháng)度的系數ψf=FRP強度折減系數=0.85（根據設計材料特性校準）=0.85（基于可靠性分析），適用于三面FRP U形包層或雙面加固方案=0.95，適用于剪切全包層截面ψs=用于根據鋼筋尺寸ψt=用于根據鋼筋位置修改延伸長(cháng)度的系數美國混凝土協(xié)會(huì )–版權所有?材料–www.Concrete。org《用于加固混凝土結構的外部粘結FRP系統》（ACI 440.2R-17）9 2.2定義ACI通過(guò)在線(xiàn)資源“ACI混凝土術(shù)語(yǔ)”提供了一個(gè)全面的定義列表，
此處提供的定義補充了該來(lái)源。芳族聚酰胺纖維，其中芳族聚酰胺分子鏈沿著(zhù)纖維軸定向，以利用化學(xué)鍵的強度。芳族聚酰胺纖維增強聚合物復合材料，其包括用芳族聚酰胺織物、墊或股線(xiàn)增強的聚合物基質(zhì)。通過(guò)在惰性環(huán)境中加熱含有大量碳的有機前體材料（如人造絲、聚丙烯腈或瀝青）而生產(chǎn)的碳纖維。碳纖維增強聚合物復合材料，包括用碳纖維布、墊或股線(xiàn)增強的聚合物基質(zhì)。加速化學(xué)反應并使其在比其他要求更溫和的條件下進(jìn)行的催化劑物質(zhì)，其本身不會(huì )因反應而永久改變。接觸關(guān)鍵應用強化或修復系統，其依賴(lài)于通過(guò)界面處的接觸或支承實(shí)現的從基材到系統材料的載荷傳遞。在低于抗拉強度的應力下，材料在持續載荷下的蠕變斷裂。交聯(lián)形成將一個(gè)聚合物分子連接到另一個(gè)的共價(jià)鍵。E-玻璃-用于增強聚合物的玻璃纖維系列，具有硼硅酸鈣-氧化鋁組成，最大堿含量為2.0%。機織、非織造、針織或縫合纖維的二維織物網(wǎng)絡(luò )；紗線(xiàn)；或絲束。纖維含量——復合材料中存在的纖維量，以復合材料的百分比體積分數或質(zhì)量分數表示。纖維飛短纖，在搬運過(guò)程中從干纖維絲束或紗線(xiàn)上脫落，并在空中飛行。
ε Determination of ccu (based on cross section geometry) κ V=bond correlation coefficient for shear κε= The efficiency coefficient of FRP strain, equal to 0.55, to account for the difference between the observed restrained fracture strain and the fracture strain determined by the tensile test θ P=plastic hinge rotation demand ρ F=FRP reinforcement ratio ρ G=area ratio of longitudinal steel, ratio of cross-sectional area of reinforcement to compression member (As/bh) ρ L=longitudinal reinforcement ratio ρ S=ratio of non compression reinforcement σ= standard deviation τ B=average bond strength of near surface mounted FRP bars, psi (MPa) ψ E=factor used to modify the extension length according to the reinforcement coating ψ F=FRP strength reduction factor=0.85 (calibrated according to design material properties)=0.85 (based on reliability analysis), applicable to three side FRP U-shaped cladding or double-sided reinforcement scheme=0.95, applicable to shear full cladding section ψ S=used according to the reinforcement size ψ T=coefficient used to modify the extension length according to the position of the reinforcement American Concrete Institute - All rights reserved ? Materials – www Concrete。 org External Bonded FRP System for Strengthening Concrete Structures (ACI 440.2R-17) 9 2.2 Definitions ACI provides a comprehensive list of definitions through the online resource "ACI Concrete Terms",
The definitions provided here complement this source. Aromatic polyamide fiber, wherein aromatic polyamide molecular chains are oriented along the fiber axis to take advantage of the strength of chemical bonds. Aromatic polyamide fiber reinforced polymer composite, which includes a polymer matrix reinforced with aromatic polyamide fabric, pad or strand. Carbon fibers are produced by heating organic precursor materials (such as rayon, polyacrylonitrile or asphalt) containing large amounts of carbon in an inert environment. Carbon fiber reinforced polymer composite, including polymer matrix reinforced with carbon fiber cloth, pad or strand. The catalyst material that accelerates the chemical reaction and enables it to be carried out under more mild conditions than other requirements will not change permanently due to the reaction. Contact critical applications are reinforcement or repair systems that rely on load transfer from the substrate to the system material through contact or support at the interface. Creep fracture of material under continuous load under stress lower than tensile strength. Crosslinking forms a covalent bond that connects one polymer molecule to another. E-glass - A series of glass fibers used to strengthen polymers, consisting of calcium borosilicate alumina, with a maximum alkali content of 2.0%. Two dimensional fabric network of woven, nonwoven, knitted or sewn fibers; Yarn; Or tow. Fiber content the amount of fiber present in a composite, expressed as a percentage volume or mass fraction of the composite. Fiber flying staple fiber, which falls off from the dry fiber tow or yarn during handling and flies in the air.
