Shear strengthening of reinforced-concrete beams using advanced composite materials

... Transformation of External Tendons 77 4.8 Summary 80 iv Table of Contents Chapter Strengthening of RC Frames with External Tendons 104 5.1 General 104 5.2 Response of RC Frames Strengthened with External ... application of external posttensioning in strengthening simple-span and continuous beams, as well as in strengthening beams in RC frames The scope...

Ngày tải lên: 14/09/2015, 08:50

... the buildings It is the new way to design the smart buildings with light weight by incorporating the PCMs inside the hollow cavity of brick Environment Friendly Cooling of building using phase change ... benefits remain uncertain, especially for the residential sector This study investigates the potential of using PCM for thermal heat storage in building facade...

Ngày tải lên: 05/09/2013, 17:03

... elements for composite beams with deformable shear connection”, Finite Elements in Analysis and Design, 40 (13-14), 1907-1930 Nguyen, Q H., Hjiaj, M., Uy, B and Guezouli, S (2009), Analysis of composite ... analysis of composite beams with incomplete interaction”, Proc Soc Exp Stress Anal, 9(1), 75–9 Gattesco, N (1999), “Analytical modeling of nonlinear behavior of...

Ngày tải lên: 03/06/2016, 19:11

... accuracy of the proposed method The fast convergence and using less DOFs also show the robustness of the isogeometric analysis inflatable composite beam models that promissing in further analysis of ... khoa học công nghệ toàn quốc khí - Lần thứ IV CONCLUSIONS The linear eigen buckling of the inflatable composite beams is successfully obtained in the framework o...

Ngày tải lên: 08/06/2016, 14:06

... photons and electrons in a variety of treatment modalities including intensity modulated radiotherapy (IMRT) and dynamic arc therapy The package includes, for both photons and electrons, commissioning ... regardless of the composition of commissioning sets, mean values of the seven confidence limits are typically less than %/mm over most of the range of depths and SSDs we ex...

Ngày tải lên: 03/11/2012, 10:05

... CMED model to study the interaction of waves and a submerged breakwater and to consider the wave prevention efficiency of the submerged breakwater The study is focused on the influence of submerged ... of submerged breakwater that can give a good performance of the breakwater in prevention of waves From the results of the first experiment, there i...

Ngày tải lên: 14/03/2014, 15:20

... Asbestos 15 –20 15 –30 10 –50 15 –40 75 10 –20 25 5 15 15 – – 0.2 16 0 550 580 540 17 0 250 18 0 10 0 400 17 50 270 560 17 00 23 36 22 28 5.9 5.5 13 12 .7 – – 16 0 1. 5 0.8 1. 5 1. 5 1. 32 1. 5 1. 25 1. 24 1. 35 – ... 470–530 18 5 450 480 90 1. 75 1. 78 2.5–2.6 3.96 2.4–2.7 4.9 2.5 1. 9 400 15 0 15 0 10 0 11 0 30 10 0 70 17 ,10 0 47,700 16 ,800 13 ,300 7700...

Ngày tải lên: 13/08/2014, 08:20

... γxy = 2 12 = 2 21 , σz = σ33 τyz = 23 = σ 32 εz = ε33 γxz = 2 13 = 2 31 , γyz = 2 23 = 2 32 Then, Eq (2. 39) can be written as dW = dU dV V (2. 40) 46 Advanced mechanics of composite materials where ... ⎢ ⎢ ⎢ ⎣ S11 S21 S31 S41 S51 S61 S 12 S 22 S 32 S 42 S 52 S 62 S13 S23 S33 S43 S53 S63 S14 S24 S34 S44 S54 S64 S15 S25 S35 S45 S55 S65 S16 S26 S36 S46 S56 S66 ⎤ ⎥ ⎥ ⎥ ⎥...

Ngày tải lên: 13/08/2014, 08:20

... 10 30 -mm-long Fig 3. 30 Specimens of matrix material Fig 3. 31 Testing of the matrix specimen 88 Advanced mechanics of composite materials fiber segments All of them are rather specific because of ... solution for Eq (3. 33) is An = B cos nθ + C sin nθ (3. 35) whereas Eq (3. 34) yields, after some transformation, λ = 2µ sin θ (3. 36) Substituting the solution, Eq (3. 35),...

Ngày tải lên: 13/08/2014, 08:20

... Fig 3 .45 A mandrel for test rings – experimental results) 108 Advanced mechanics of composite materials Fig 3 .46 Two-, four-, and eight-sector test fixtures for composite rings Fig 3 .47 A composite ... For example, the compressive strength of composites 122 Advanced mechanics of composite materials Fig 3. 64 Failure mode of a unidirectional carbon–epoxy compos...

Ngày tải lên: 13/08/2014, 08:20

... static and cyclic tensile loading Mechanics of Composite Materials, 20(1), 44 52 Mileiko, S.T (1982) Mechanics of metal-matrix fibrous composites In Mechanics of Composites (Obraztsov, I.F and Vasiliev, ... 2.9 and the rule of summation over repeated subscripts) dU = σij dεij , σij = ∂U ∂εij (4.8) 138 Advanced mechanics of composite materials s, MPa 50 40 30 20 10 e...

Ngày tải lên: 13/08/2014, 08:20

... A 56 = A65 = (G13 − G23 )cs A 66 = G13 s + G23 c2 (4.72) cs 166 Advanced mechanics of composite materials where E 1, = E1, , − ν12 ν21 E12 = E ν12 + 2G12 , c = cos φ, s = sin φ The dependence of ... = 0. 365 mm, h2 = 0.735 mm, E1 = 56 GPa, E2 = 17 GPa, 192 Advanced mechanics of composite materials G13 = 5 .6 GPa, G23 = 6. 4 GPa, ν13 = 0.095, ν23 = 0.35, σ + = 25.5 M...

Ngày tải lên: 13/08/2014, 08:20