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Title: Magazine of Civil Engineering. — № 8 (100)
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)
Document type: Other
File type: PDF
Language: English
Rights: Свободный доступ из сети Интернет (чтение, печать, копирование)
Record key: RU\SPSTU\edoc\66128

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Table of Contents

  • E-mail: mce@spbstu.ru
  • Web: http://www.engstroy.spbstu.ru
  • Contents
  • Frictional contact problem in building constructions analysis
    • 1. Introduction
    • 2. Methods
    • 3. Results and Discussion
    • 4. Conclusions
  • Free vibration of axially loaded multi-cracked Timoshenko beams
    • 1. Introduction
    • 2. Methods
      • 2.1. Theoretical model
      • 2.2. Local flexibility due to a crack
      • 2.3. Transfer matrix method
      • 2.4. The corresponding mode shapes
    • 3. Results and Discussion
      • 3.1. Validation of results
      • 3.2. Effects of One Crack and Axial Load on Natural Frequencies
      • 3.3. Effects of multiple cracks and axial load on natural frequencies
      • 3.4. Effects of number of cracks on natural frequencies and corresponding mode shapes.
      • 3.5. Effects of shear deformation and rotational inertia on natural frequencies
    • 4. Conclusions
  • Durability behaviors of foam concrete made of binder composites
    • 1. Introduction
    • 2. Materials and Methods
      • 2.1. Materials
      • 2.2. Methods
    • 3. Results and Discussion
      • 3.1. Mix design
    • 4. Conclusions
    • 5. Prospects for further development of the issue
    • 6. Acknowledgements
  • The influence of reinforcing joints on the fire resistance of reinforced concrete structures
    • 1. Introduction
    • 2. Methods
      • 2.1. "Cold" experiment No 1: tensile test to rupture of "cold" samples, at room temperature 20 C
      • 2.2. " Hot "experiment No 2: tensile testing prior to rupture of" hot " samples preheated to 500 C
      • 2.3. Experiment No 3: Test of loaded, heated and cooled steel bars simulating the real impact of fire on the loaded structure
    • 3. Results and Discussion
      • 3.1. Experiment No 1. Cold samples
      • 3.2. Experiment No 2. Hot samples
      • 3.3. Experiment No 3. Testing of heated and cooled samples under load
      • 3.4. Discussion
    • 4. Conclusion
    • 5. Acknowledgments
  • 1. Introduction
  • 2. Methods
    • 2.1. Materials and Experimental work
    • 2.2. SEM observation
    • 2.3. Optical microscopy
    • 2.4. XRD analysis
  • 3. Results and Discussion
    • 3.1. SEM-EDS Microstructural and Composition Analysis of the Steel Rebar Surface
    • 3.2. Optical Microscopy
    • 3.3. Composition analysis of corrosion products by XRD test
  • 4. Conclusion
  • 5. Acknowledgements
  • The formation mechanism of the porous structure of glass ceramics from siliceous rock
    • 1. Introduction
    • 2. Methods
      • 2.1. Materials
      • 2.2. Compositions and technology for the production of samples
      • 2.3. Analytical techniques
    • 3. Results and Discussion
      • 3.1. Charge properties
      • 3.2. Formation mechanism of the porous structure
      • 3.3. Properties of samples of foamed glass ceramic materials
    • 4. Conclusions
    • 5. Acknowledgement
  • Effect of sorption moisture content of heavy concrete on radon emanation
    • 1. Introduction
    • 2. Methods
      • 2.1. Determining the specific activity of radionuclides and the specific effective activity
      • 2.2. Determining the radon concentration in the air of a sealed container
    • 3. Results and Discussion
    • 4. Conclusion
  • Impact of loading rate on asphalt concrete deformation and failure
    • 1. Introduction
    • 2. Materials and Methods
    • 3. Results and Discussions
    • 4. Conclusions
  • Hydration and structure formation of chloride-activated cement paste
    • 1. Introduction
    • 2. Methods
    • 3. Results and Discussion
      • 3.1. The age-strength relation of cement paste at different percentages of additives
      • 3.2. The X-ray phase analysis and infrared spectra of the additive and the control specimen
      • 3.3. The X-ray phase analysis and infrared spectra of the modified cement paste and non-additive cement paste
    • 4. Conclusions
    • 5. Acknowledgements
  • Influence of raw greywater on compressive strength of concrete
    • 1. Introduction
    • 2. Methods
      • 2.1. Water Sampling
      • 2.2. Water Quality Parameters Testing
      • 2.3. Concrete Materials Collection
      • 2.4. Materials Properties and Mix Design of Concrete
      • 2.5. Specimen Casting, Curing, and Testing
    • 3. Results and Discussion
      • 3.1. Characteristics of greywater and freshwater
      • 3.2. Compressive strength of concrete: Effect of casting-curing water (FBF Vs GBG; FSF Vs GSG)
      • 3.3. Compressive strength of concrete: Effect of casting water (FBF vs GBF; FSF vs GSF)
      • 3.4. Compressive strength of concrete: Effect of curing water (GBF vs GBG; GSF vs GSG)
      • 3.5. Compressive strength of concrete: Effects of coarse aggregates
      • 3.6. Failure pattern of specimen
      • 3.7. Compressive strength of concrete: Effect of water quality parameters
    • 4. Conclusions
    • 5. Acknowledgment
  • Temperature and moisture in highways in different climatic regions
    • 1. Introduction
    • 2. Methods
      • 2.1. Test sections
      • 2.2. Temperature and moisture sensors
    • 3. Results and Discussion
      • 3.1. Air temperature
      • 3.2. Temperature in pavement and subgrade
      • 3.3. Moisture in pavement and subgrade
      • 3.4. Cyclic freezing and thawing
    • 4. Conclusion
  • Mechanical properties of sustainable wooden structures reinforced with Basalt Fiber Reinforced Polymer
    • 1. Introduction
    • 2. Materials and Methods
      • 2.1. Sources of materials and mechanical properties
      • 2.2. Mix design
      • 2.3. Method of research
      • 2.4. Mechanical testing
      • 2.5. Finite element testing
    • 3. Results and Discussions
      • 3.1. Testing results
      • 3.2. FEM
      • 3.3. Material Consumption
    • 4. Conclusion

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