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2022 Vol. 52, No. 2
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2022, 52(2): 1-9.
doi: 10.13204/j.gyjzG20102205
Abstract:
Fracture parameters can be used to analyze the influence of fibers on fiber-reinforced concrete specimens at different loading stages, thus being helpful to evaluate the fracture property of fiber-reinforced concrete accurately. In the paper, the com...
Fracture parameters can be used to analyze the influence of fibers on fiber-reinforced concrete specimens at different loading stages, thus being helpful to evaluate the fracture property of fiber-reinforced concrete accurately. In the paper, the com...
2022, 52(2): 10-17,31.
doi: 10.13204/j.gyjzG20112711
Abstract:
The combined use of fibers and recycled concrete improves the defects of recycled concrete and strengthens its mechanical and durability properties. The paper introduced the research status of fibers-recycled concrete from the aspects of fiber types ...
The combined use of fibers and recycled concrete improves the defects of recycled concrete and strengthens its mechanical and durability properties. The paper introduced the research status of fibers-recycled concrete from the aspects of fiber types ...
2022, 52(2): 18-23,107.
doi: 10.13204/j.gyjzG20092909
Abstract:
The compressive, splitting tensile and flexural tests of plain concrete, nano-SiO2 concrete and basalt fiber nano-SiO2 concrete under high temperatures were carried out, and the prediction model of concrete strength that was established. According to...
The compressive, splitting tensile and flexural tests of plain concrete, nano-SiO2 concrete and basalt fiber nano-SiO2 concrete under high temperatures were carried out, and the prediction model of concrete strength that was established. According to...
2022, 52(2): 24-31.
doi: 10.13204/j.gyjzG21042606
Abstract:
The corrosion resistance experiments of concrete with basalt fiber proportion of 0%, 0.1%, 0.2% and 0.3% were conducted, in which the conorete specimens were soaked in compound salt solutions of MgSO4 mixed with Na2SO4 and NaCl, to explore the corros...
The corrosion resistance experiments of concrete with basalt fiber proportion of 0%, 0.1%, 0.2% and 0.3% were conducted, in which the conorete specimens were soaked in compound salt solutions of MgSO4 mixed with Na2SO4 and NaCl, to explore the corros...
2022, 52(2): 32-36,114.
doi: 10.13204/j.gyjzG21071801
Abstract:
In order to study the bond properties between ceramsite concrete roinforced with hybrid fibers of steel and polypropylene and threaded rebars, the cubic compressive strength and splitting tensile strength tests of 16 groups of ceramsite concrete with...
In order to study the bond properties between ceramsite concrete roinforced with hybrid fibers of steel and polypropylene and threaded rebars, the cubic compressive strength and splitting tensile strength tests of 16 groups of ceramsite concrete with...
2022, 52(2): 37-41,125.
doi: 10.13204/j.gyjzG20120206
Abstract:
In order to explore the failure mechanism and design method of GFRP-reinforced concrete stubs with hybrid fibers under axial compression, five GFRP-reinforced concrete stubs with bybrid fibers and an ordinary reinforced concrete stub were studied,the...
In order to explore the failure mechanism and design method of GFRP-reinforced concrete stubs with hybrid fibers under axial compression, five GFRP-reinforced concrete stubs with bybrid fibers and an ordinary reinforced concrete stub were studied,the...
2022, 52(2): 42-51.
doi: 10.13204/j.gyjzG21042306
Abstract:
Mountain scenic architecture reflect the harmonious architecture wisdom in ancient China based on the natural system. Taking Mount Song as the research object and against the time background of the Qing Dynasty, through the research methods of histor...
Mountain scenic architecture reflect the harmonious architecture wisdom in ancient China based on the natural system. Taking Mount Song as the research object and against the time background of the Qing Dynasty, through the research methods of histor...
2022, 52(2): 52-58,168.
doi: 10.13204/j.gyjzG21031704
Abstract:
Based on the distributed parameter system and the characteristics of the base-isolated frame structure,the construction and solution process of the shear cantilever beam model with distributed parameter of base-isolated considering non-proportional d...
Based on the distributed parameter system and the characteristics of the base-isolated frame structure,the construction and solution process of the shear cantilever beam model with distributed parameter of base-isolated considering non-proportional d...
2022, 52(2): 59-66,74.
doi: 10.13204/j.gyjzG20092305
Abstract:
Through the vertical axial load test of 5 full-scale prefabricated walls integrating thermal insulation and load-bearing, research on the influences of opening, height-to-thickness ratios and loading methods on failure modes, bearing capacity, crack ...
Through the vertical axial load test of 5 full-scale prefabricated walls integrating thermal insulation and load-bearing, research on the influences of opening, height-to-thickness ratios and loading methods on failure modes, bearing capacity, crack ...
2022, 52(2): 67-74.
doi: 10.13204/j.gyjzG21061614
Abstract:
With the development of steel-smelting technology, using fire-resistant and weathering steel and encased profiled steel sheets to promote the fire resistance of composite beams has become a new solution for steel structure fire design. Adopting appro...
With the development of steel-smelting technology, using fire-resistant and weathering steel and encased profiled steel sheets to promote the fire resistance of composite beams has become a new solution for steel structure fire design. Adopting appro...
2022, 52(2): 75-80.
doi: 10.13204/j.gyjzG201902180009
Abstract:
Based on a long-span and complex steel frames building with inclined pillars in a relic protection project, the finite element model was constructed to simulate the whole process of construction. Based on the actual situation of the site, considering...
Based on a long-span and complex steel frames building with inclined pillars in a relic protection project, the finite element model was constructed to simulate the whole process of construction. Based on the actual situation of the site, considering...
2022, 52(2): 81-89.
doi: 10.13204/j.gyjzG21053113
Abstract:
In traditional vertical industrial workshops that use reinforced concrete structures and steel structures, when the span is relatively large and the load is relatively heavy, the use of a steel-concrete composite structure system can bring better ove...
In traditional vertical industrial workshops that use reinforced concrete structures and steel structures, when the span is relatively large and the load is relatively heavy, the use of a steel-concrete composite structure system can bring better ove...
2022, 52(2): 90-95.
doi: 10.13204/j.gyjzG20123004
Abstract:
In order to quantitatively describe the spatial deformation characteristics of landslides, based on the survey of the topography, landform and geological structure of Yutaicun Village Landslide in Chongqing, advanced comprehensive monitoring technolo...
In order to quantitatively describe the spatial deformation characteristics of landslides, based on the survey of the topography, landform and geological structure of Yutaicun Village Landslide in Chongqing, advanced comprehensive monitoring technolo...
2022, 52(2): 96-100,150.
doi: 10.13204/j.gyjzG20121502
Abstract:
The variation curve of the deeply horizontal displacement of foundation excavation is influenced by many factors such as retaining forms, geological conditions and surrounding building loads. Therefore, the shape of the inclination measurement curve ...
The variation curve of the deeply horizontal displacement of foundation excavation is influenced by many factors such as retaining forms, geological conditions and surrounding building loads. Therefore, the shape of the inclination measurement curve ...
2022, 52(2): 101-107.
doi: 10.13204/j.gyjzG20120504
Abstract:
The stability for the trench of diaphragm walls is related to the safety and quality of trenching construction. To ensure the stability of trenches, the stress variation in the earth of trench walls was analyzed under trenching construction, the stab...
The stability for the trench of diaphragm walls is related to the safety and quality of trenching construction. To ensure the stability of trenches, the stress variation in the earth of trench walls was analyzed under trenching construction, the stab...
2022, 52(2): 108-114.
doi: 10.13204/j.gyjzG20120701
Abstract:
As wind turbines in mountain areas in outskirts of towns can avoid occupy a large amount of cultivated land for wind turbines on the plains and save a large number of high voltage transmission lines for wind turbines in the deserts, wind turbines in ...
As wind turbines in mountain areas in outskirts of towns can avoid occupy a large amount of cultivated land for wind turbines on the plains and save a large number of high voltage transmission lines for wind turbines in the deserts, wind turbines in ...
2022, 52(2): 115-119.
doi: 10.13204/j.gyjzG20122202
Abstract:
Based on the deformation coordination between the anchorage body and surrounding soil in the elastic-plastic state, a model for load transfer mechanism of anchor bars under the confining pressure was constructed, and the theoretical calculation formu...
Based on the deformation coordination between the anchorage body and surrounding soil in the elastic-plastic state, a model for load transfer mechanism of anchor bars under the confining pressure was constructed, and the theoretical calculation formu...
2022, 52(2): 120-125.
doi: 10.13204/j.gyjzG21051810
Abstract:
Through experiments of the concrete with different initial preloading stress levels (IPSLS) that experienced different low temperatures (-40 ℃, -80 ℃, -120 ℃ and -160 ℃), the effect of IPSL on the compressive deformation performances of concrete expo...
Through experiments of the concrete with different initial preloading stress levels (IPSLS) that experienced different low temperatures (-40 ℃, -80 ℃, -120 ℃ and -160 ℃), the effect of IPSL on the compressive deformation performances of concrete expo...
2022, 52(2): 126-132.
doi: 10.13204/j.gyjzG21032609
Abstract:
The influence of Nano-SiO2 (instead of cement) and rubber powder (instead of natural river sand) on compressive strength and slump of recycled concrete cured for 7 and 28 days was studied by the mass substitution method. Through the test results, it ...
The influence of Nano-SiO2 (instead of cement) and rubber powder (instead of natural river sand) on compressive strength and slump of recycled concrete cured for 7 and 28 days was studied by the mass substitution method. Through the test results, it ...
2022, 52(2): 133-138,157.
doi: 10.13204/j.gyjzG21062503
Abstract:
To improve the utilization rate of steel slag powder (SSP) as mineral admixture in cement-based materials, and to enhance the mechanical properties of recycled aggregate concrete (RAC), the influences of SSP and MK on the mechanical properties and mi...
To improve the utilization rate of steel slag powder (SSP) as mineral admixture in cement-based materials, and to enhance the mechanical properties of recycled aggregate concrete (RAC), the influences of SSP and MK on the mechanical properties and mi...
2022, 52(2): 139-143.
doi: 10.13204/j.gyjzG20090301
Abstract:
Through the high temperature test of the concrete after carbonization, the change rules of carbonization depth, mass loss, compressive strength and flexural strength were studied; the degradation mechanism of the mechanical properties of concrete aft...
Through the high temperature test of the concrete after carbonization, the change rules of carbonization depth, mass loss, compressive strength and flexural strength were studied; the degradation mechanism of the mechanical properties of concrete aft...
2022, 52(2): 144-150.
doi: 10.13204/j.gyjzG21101408
Abstract:
The track of National Sliding Centre is a long linear space hyperbolic panel shell structure, which cannot be realized by conventional concrete construction techniques, so shotcrete is used for the track structure. As the domestic existing shotcrete ...
The track of National Sliding Centre is a long linear space hyperbolic panel shell structure, which cannot be realized by conventional concrete construction techniques, so shotcrete is used for the track structure. As the domestic existing shotcrete ...
2022, 52(2): 151-157.
doi: 10.13204/j.gyjzG21042809
Abstract:
A new type of high-strength high-ductility corrosion-resistant rebars—Negative Poisson Ratio(NPR) has been developed independently in China. The bond properties of concrete with NPR rebars were studied by central pull-out tests. The failure modes of ...
A new type of high-strength high-ductility corrosion-resistant rebars—Negative Poisson Ratio(NPR) has been developed independently in China. The bond properties of concrete with NPR rebars were studied by central pull-out tests. The failure modes of ...
2022, 52(2): 158-168.
doi: 10.13204/j.gyjzG21121405
Abstract:
In recent years, China has vigorously promoted prefabricated structures, and prefabricated concrete frame structures are currently one of the most researched and applied structural systems at home and abroad. The core of the research is the form and ...
In recent years, China has vigorously promoted prefabricated structures, and prefabricated concrete frame structures are currently one of the most researched and applied structural systems at home and abroad. The core of the research is the form and ...
2022, 52(2): 169-174,185.
doi: 10.13204/j.gyjzG20121405
Abstract:
As an indispensable storage structure for renewable energy, the safety of hot water storage tank is of great significance. In order to test the rationality of the tank design and the safety of the tank during operation, the field strain and temperatu...
As an indispensable storage structure for renewable energy, the safety of hot water storage tank is of great significance. In order to test the rationality of the tank design and the safety of the tank during operation, the field strain and temperatu...
2022, 52(2): 175-179,195.
doi: 10.13204/j.gyjzG21042001
Abstract:
Aiming at the low efficiency of manual batch inspection for high-strength bolts steel bridge and the high cost of contact sensing equipment, a detection method for the loosening of high strength bolts based on image recognition was proposed. Through ...
Aiming at the low efficiency of manual batch inspection for high-strength bolts steel bridge and the high cost of contact sensing equipment, a detection method for the loosening of high strength bolts based on image recognition was proposed. Through ...
2022, 52(2): 180-185.
doi: 10.13204/j.gyjzG21041612
Abstract:
Bridge informatization methods based on BIM have been more and more widely used in the process of bridge construction and operation management. In order to solve the problems of unintuitive and unjustified disease analysis caused by the deficiency in...
Bridge informatization methods based on BIM have been more and more widely used in the process of bridge construction and operation management. In order to solve the problems of unintuitive and unjustified disease analysis caused by the deficiency in...
2022, 52(2): 196-205.
doi: 10.13204/j.gyjzG20102903
Abstract:
This article took prefabricated construction as the research object, through the analysis of the relationship between the various factors, the corresponding system dynamics model was established, and took the example of Jinan city. And then, dynamic ...
This article took prefabricated construction as the research object, through the analysis of the relationship between the various factors, the corresponding system dynamics model was established, and took the example of Jinan city. And then, dynamic ...
2022, 52(2): 206-208.
Abstract:
