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Title: Magazine of Civil Engineering № 2 (94)
Organization: Санкт-Петербургский политехнический университет Петра Великого
Imprint: Санкт-Петербург: СПбПУ, 2020
Collection: Общая коллекция
Subjects: Строительство; Сопротивление материалов; Строительная механика; Строительные материалы
UDC: 624.04(051); 69(051); 539.3/.6(051)
File type: PDF
Language: English
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Table of Contents

  • title94
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  • index
    • E-mail: mce@spbstu.ru
    • Web: http://www.engstroy.spbstu.ru
    • Contents
  • 01
    • The strength of short compressed concrete elements in a fiberglass shell
      • 1. Introduction
      • 2. Methods
      • 3. Results and Discussion
      • 4. Conclusions
  • 02
    • Heat protective properties of enclosure structure from thin-wall profiles with foamed concrete
      • 1. Introduction
      • 2. Methods
        • 2.1. Determination of thermal and mechanic parameters of thermal insulating constructive material
          • 2.1.1. Determination of humidity
          • 2.1.2. Determination of density
          • 2.1.3. Determination of strength
        • 2.2. Determination of thermal protecting properties of enclosing structure based on thin-wall steel C-beams and cast in-situ foamed concrete.
          • 2.2.1. Determination of thermal technical properties of enclosing structure, climate chamber tests
      • 3. Results and Discussion
        • 3.1. Theoretical calculation of thermal conductivity resistance for non-uniform enclosing structure
      • 4. Conclusions
      • 5. Acknowledgment
  • 03
    • The geogrid-reinforced gravel base pavement model
      • 1. Introduction
      • 2. Methods
        • 2.1. Theoretical solution
        • 2.2. Experiment
      • 3. Results and Discussion
      • 4. Conclusions
  • 04
    • Computational modeling of yielding octagonal connection for concentrically braced frames
      • 1. Introduction
      • 2. Methods
        • 2.1. Finite Element Simulation of YOCs
        • 2.2. Verification of the FE model
        • 2.3. Specifications of the building
        • 2.4. Using the proposed device in building frames
        • 2.5. Specifications of applied earthquakes
      • 3. Results and Discussion
        • 3.1. Formation of plastic hinges
        • 3.2. Effect of the damper on story drift ratio
        • 3.3. Effect of the damper on the peak floor acceleration
        • 3.4. Effect of the damper on maximum roof acceleration
          • 3.4.1. Effect of the damper on maximum roof acceleration in near-field earthquakes
        • 3.5. Effect of the damper on base reaction
          • 3.5.1. Effect of the damper on maximum roof acceleration in far-field earthquakes
        • 3.6. Effect of maximum roof displacement
          • 3.6.1. Effect of maximum roof displacement in near-field earthquakes
          • 3.6.2. Effect of maximum roof displacement in far-field earthquakes
      • 4. Conclusion
  • 05
  • 06
    • Intake rate through openings in the side wall of the duct
      • 1. Introduction
      • 2. Methods
        • 2.1. Hole on one side of the intake duct wall
        • 2.2. Bilateral arrangement of slotted openings in the duct
      • 3. Results and Discussion
        • 3.1. Hole on one side of the intake duct wall
        • 3.2. Double-sided intake panel element
      • 4. Conclusions
  • 07
    • Evaluation of the basalt fiber reinforced pumice lightweight concrete
      • 1. Introduction
      • 2. Methods
        • 2.1. Materials and Mixture Design
        • 2.2. Sample preparation and testing
      • 3. Results and Discussion
        • 3.1. Fresh concrete properties
        • 3.2. Physical properties
        • 3.3. Mechanical properties
        • 3.4. Magnesium sulfate resistance
      • 4. Conclusion
      • 5. Acknowledgement
  • 08
    • Behavior of strengthened concrete beams damaged by thermal shock
      • 1. Introduction
      • 2. Methods
        • 2.1. Experimental Work Review
        • 2.2. Description of Non-linear Finite Element Analysis (NLFEA)
        • 2.3. Investigated Parameters
        • 2.4. Validation Process
      • 3. Results and Discussion
        • 3.1. Failure Mode
        • 3.2. CFRP strain
        • 3.3. Load-deflection behavior
        • 3.4. Ultimate load capacity and corresponding deflection
        • 3.5. Elastic stiffness
        • 3.6. Toughness
        • 3.7. Evaluation of Performance of NLFEA Results
        • 3.8. Profitability Index of the CFRP Strips Number
        • 3.9. Comparison of NLFEA with other results
      • 4. Conclusions
  • 09
    • Two-way patched RC slabs under concentrated loads
      • 1. Introduction
      • 2. Methods
      • 3. Results and Discussion
        • 3.1. Effects of Patching on the Development of Crack Pattern
        • 3.2. Effect of Patching and Load Position on Final Crack Pattern
        • 3.3. Ultimate load
        • 3.4. Load-Deflection Behavior
      • 4. Conclusions
      • 5. Acknowledgement
  • 10
    • Heat recovery efficiency of local decentralized ventilation devices
      • 1. Introduction
      • 2. Methods
      • 3. Results and Discussions
      • 4. Conclusions
      • 5. Acknowledgements
  • 11
    • Finite element modeling of cold-formed steel deck in bending
      • 1. Introduction
      • 2. Methods
      • 3. Results and Discussion
        • 3.1. Effects of element type, mesh density, and initial geometric imperfection magnitude
        • 3.2. Effects of corner radius
        • 3.3. Effects of number of deck corrugations (hats)
        • 3.4. Effects of initial geometric imperfection distribution
        • 3.5. Effects of deck support conditions, loading application, and transverse ties
        • 3.6. Effects of loading type
        • 3.7. Effects of steel stress-strain diagrams and model validation
      • 4. Conclusions
  • 12
    • Micromechanical characteristics of high-performance concrete subjected to modifications of composition and homogenization
      • 1. Introduction
      • 2. Methods
        • 2.1. Investigated materials
        • 2.2. Nanoindentation
        • 2.3. Scanning electron microscopy and image analysis
        • 2.4. Macromechanical characteristics
      • 3. Results and Discussion
        • 3.1. The effect of SCM type and amount
        • 3.2. The effect of homogenization procedure
        • 3.3. The effect of aggregate washing
      • 4. Conclusions
      • 5. Acknowledgement
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