1 Introduction |
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1 | (16) |
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1.1 Concept of Size Effect |
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1 | (2) |
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1.2 Source of Size Effect |
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3 | (1) |
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4 | (9) |
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1.3.1 Static Size Effect of Concrete Materials |
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5 | (7) |
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1.3.2 Dynamic Size Effect of Concrete Materials |
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12 | (1) |
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1.3.3 Size Effect of Concrete Members |
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12 | (1) |
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13 | (2) |
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15 | (2) |
2 Concrete on the Meso-level |
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17 | (10) |
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2.1 Coarse Aggregate Particles |
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19 | (2) |
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21 | (2) |
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2.3 Interfacial Transitional Zone (ITZ) |
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23 | (2) |
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25 | (2) |
3 Methodology: Meso-Scale Simulation Approach |
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27 | (50) |
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3.1 Mesoscopic Numerical Methods |
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27 | (10) |
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28 | (2) |
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3.1.2 Stochastic Mechanical Property Model |
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30 | (1) |
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3.1.3 Random Particle Model |
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31 | (1) |
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3.1.4 Rigid Body-Spring Model |
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32 | (1) |
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3.1.5 Random Aggregate Model |
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33 | (1) |
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3.1.6 Mesoscopic Element Equivalence Method |
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34 | (1) |
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3.1.7 Other Numerical Methods |
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35 | (2) |
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37 | (8) |
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3.2.1 Random Aggregate Model of Concrete |
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37 | (4) |
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41 | (1) |
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42 | (2) |
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44 | (1) |
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45 | (5) |
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3.3.1 Damaged Plasticity Model |
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45 | (3) |
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3.3.2 Elastoplastic Model |
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48 | (1) |
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3.3.3 Elastic-Brittle Model |
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49 | (1) |
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50 | (5) |
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3.4.1 Code Recommendations |
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51 | (2) |
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53 | (2) |
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55 | (3) |
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3.5.1 Node-to-Node Interaction Model |
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55 | (2) |
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3.5.2 Surface-to-Surface Contact Model |
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57 | (1) |
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3.6 Validation of Simulation Method |
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58 | (12) |
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58 | (4) |
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62 | (3) |
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65 | (3) |
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3.6.4 Beam-to-Column Joint |
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68 | (2) |
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70 | (1) |
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71 | (6) |
4 Static Size Effect in Concrete Materials |
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77 | (62) |
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4.1 Tensile Strength of Concrete Materials |
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78 | (13) |
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4.1.1 Morphological Material Model for Concrete |
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78 | (5) |
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4.1.2 Multi-grade Analysis Method for Cementitious Systems |
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83 | (4) |
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4.1.3 Validation and Analysis |
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87 | (4) |
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4.2 Splitting-Tensile Strength of Concrete Materials |
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91 | (11) |
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4.2.1 Experimental Analysis |
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92 | (5) |
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97 | (5) |
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4.3 Flexural-Tensile Strength of Concrete Materials |
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102 | (8) |
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4.3.1 Experimental Analysis |
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102 | (4) |
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106 | (4) |
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4.4 Compressive Strength of Concrete Materials |
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110 | (11) |
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4.4.1 Size Effect of Lightweight Aggregate Concrete |
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111 | (4) |
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4.4.2 Size Effect on Biaxial Compressive Behavior |
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115 | (6) |
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4.5 Novel Size Effect Law Considering MAS |
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121 | (13) |
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134 | (1) |
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135 | (4) |
5 Dynamic Size Effect in Concrete Materials |
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139 | (70) |
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5.1 Dynamic Size Effect on Splitting-Tensile Strength |
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140 | (9) |
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5.1.1 Dynamic Failure Behavior |
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141 | (5) |
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5.1.2 Influence of Strain Rate |
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146 | (3) |
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5.2 Dynamic Size Effect on Tensile Strength |
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149 | (9) |
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5.2.1 Dynamic Failure Behavior |
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151 | (3) |
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5.2.2 Influence of Strain Rate |
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154 | (4) |
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5.3 Dynamic Size Effect on Compressive Strength |
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158 | (7) |
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5.3.1 Dynamic Failure Behavior |
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159 | (3) |
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5.3.2 Influence of Strain Rate |
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162 | (3) |
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5.4 Influence of Meso-Structure |
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165 | (11) |
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5.4.1 Influence of Aggregate Content |
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165 | (6) |
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5.4.2 Influence of Maximum Aggregate Size |
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171 | (3) |
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5.4.3 Influence of Aggregate Type |
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174 | (2) |
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5.5 Influence of Initial Loads |
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176 | (13) |
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5.5.1 Dynamic Compressive Failure |
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178 | (9) |
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5.5.2 Dynamic Size Effect |
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187 | (2) |
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5.6 Static-Dynamic Unified Size Effect Law |
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189 | (15) |
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193 | (1) |
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5.6.2 Dynathic Size Effect Law for Concrete |
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194 | (7) |
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5.6.3 Validation of the Theoretical Formula |
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201 | (3) |
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204 | (1) |
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205 | (4) |
6 Size Effect in Shear and Flexure Failure of Concrete Beams |
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209 | (118) |
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6.1 Shear Failure in Reinforced Concrete Beams Without Stirrups |
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209 | (15) |
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6.1.1 Failure of Ordinary Concrete Beam |
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210 | (9) |
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6.1.2 Failure of Lightweight-Aggregate Concrete Beams |
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219 | (5) |
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6.2 Shear Failure in Reinforced Concrete Beams with Stirrups |
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224 | (36) |
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6.2.1 Seismic Tests on Shear Failure of RC Beams |
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224 | (17) |
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6.2.2 Simulations on Shear Failure of RC Beams |
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241 | (19) |
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6.3 Shear Failure in CFRP-Wrapped Concrete Beams |
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260 | (25) |
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6.3.1 CFRP-Strengthened Ordinary Concrete Beams |
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262 | (14) |
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6.3.2 CFRP-Strengthened Lightweight-Aggregate Concrete Beams |
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276 | (9) |
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6.4 Flexural Failure in Reinforced Concrete Beams |
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285 | (21) |
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6.4.1 Seismic Tests on Flexural Failure of RC Beams |
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285 | (15) |
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6.4.2 Simulations on Flexural Failure of RC Beams |
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300 | (6) |
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6.5 Size Effect Law for Shear Failure in Concrete Beams |
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306 | (16) |
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306 | (1) |
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6.5.2 Size Effect Law for Shear Strength |
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307 | (11) |
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6.5.3 Validation of the Theoretical Formula |
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318 | (4) |
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322 | (1) |
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323 | (4) |
7 Size Effect in Compressive Failure Behavior of Concrete Columns |
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327 | (152) |
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7.1 Axial Compressive Failure of Normal-Strength RC Column |
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328 | (8) |
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7.1.1 Experimental Program |
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328 | (4) |
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7.1.2 Results and Discussions |
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332 | (4) |
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7.2 Axial Compressive Failure of High-Strength RC Column |
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336 | (14) |
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7.2.1 Experimental Program |
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336 | (3) |
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7.2.2 Results and Discussions |
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339 | (11) |
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7.3 Eccentrically Compressive Failure of Normal-Strength RC Column |
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350 | (14) |
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7.3.1 Experimental Investigations |
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350 | (9) |
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7.3.2 Numerical Investigations |
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359 | (5) |
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7.4 Eccentrically Compressive Failure of High-Strength RC Column |
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364 | (20) |
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7.4.1 Experimental Investigations |
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365 | (16) |
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7.4.2 Numerical Investigations |
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381 | (3) |
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7.5 Compressive Failure of Stirrups-Confined Concrete Column |
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384 | (31) |
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7.5.1 Experimental Investigations of Circular Concrete Column |
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385 | (9) |
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7.5.2 Experimental Investigations of Square Concrete Column |
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394 | (12) |
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7.5.3 Numerical Investigations |
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406 | (4) |
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7.5.4 Theoretical Analysis on Size-Dependent Stress-Strain Model |
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410 | (5) |
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7.6 Compressive Failure of FRP-Confined Concrete Column |
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415 | (26) |
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7.6.1 Experimental Investigations on CFRP-Confined RC Column |
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415 | (12) |
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7.6.2 Numerical Investigations on CFRP-Confined RC Column |
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427 | (5) |
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7.6.3 Numerical Investigations on GFRP-Confined Concrete Column |
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432 | (9) |
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7.7 Compressive Failure of CFST Columns |
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441 | (15) |
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7.7.1 Numerical Investigations on Ordinary CFST Columns |
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442 | (5) |
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7.7.2 Numerical Investigations on LWACFST Columns |
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447 | (9) |
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7.8 Size Effect Law for Axial-Loaded Confined Concrete Columns |
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456 | (18) |
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456 | (1) |
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7.8.2 Size Effect Law for Nominal Axial Compressive Strength |
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457 | (9) |
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7.8.3 Validation of Size Effect Law |
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466 | (8) |
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474 | (1) |
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475 | (4) |
8 Seismic Performances and Size Effect in Columns |
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479 | (76) |
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8.1 Compression-Shear Failure in Stocky RC Columns |
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480 | (18) |
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8.1.1 Seismic Tests on Failure of Stocky RC Columns |
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480 | (12) |
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8.1.2 Simulations on Failure of Stocky RC Columns |
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492 | (6) |
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8.2 Flexural-Compressive Failure of RC Columns |
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498 | (21) |
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8.2.1 Seismic Tests on Failure of RC Columns |
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498 | (15) |
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8.2.2 Simulations on Failure of RC Columns |
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513 | (6) |
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8.3 Compression-Shear Failure in CFST Columns |
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519 | (13) |
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8.3.1 Simulations on Failure of CFST Columns |
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520 | (1) |
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8.3.2 Simulated Results and Size Effect Analysis |
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521 | (11) |
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8.4 Compression-Shear Failure in FRP-Confined Concrete Columns |
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532 | (9) |
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8.4.1 Simulations on Failure of FRP-Confined Concrete Columns |
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532 | (2) |
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8.4.2 Simulated Results and Size Effect Analysis |
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534 | (7) |
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8.5 Size Effect Law for Compression-Shear Failure of Concrete Columns |
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541 | (10) |
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541 | (1) |
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8.5.2 Size Effect Law for Nominal Shear Strength |
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542 | (7) |
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8.5.3 Validation of Size Effect Law |
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549 | (2) |
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551 | (1) |
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552 | (3) |
9 Size Effect on Shear Failure of RC Beam-to-Column Joints |
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555 | |
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9.1 Shear Failure of Interior RC Beam-to-Column Joints |
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555 | (25) |
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9.1.1 Seismic Tests on Interior RC Beam-to-Column Joints |
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555 | (17) |
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9.1.2 Simulations on Interior RC Beam-to-Column Joints |
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572 | (8) |
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9.2 Shear Failure of Exterior RC Beam-to-Column Joints |
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580 | (13) |
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9.2.1 Seismic Tests on Exterior RC Beam-to-Column Joints |
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580 | (6) |
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9.2.2 Simulations on Exterior RC Beam-to-Column Joints |
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586 | (7) |
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9.3 Size Effect Law for Shear Failure of Beam-to-Column Joints |
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593 | (8) |
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593 | (1) |
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9.3.2 Size Effect Law for Shear Strength |
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594 | (5) |
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9.3.3 Validation of the Theoretical Formula |
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599 | (2) |
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601 | (1) |
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601 | |