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2021 Vol. 51, No. 5
Display Method:
2021, 51(5): 1-9,123.
doi: 10.13204/j.gyjzG20110502
Abstract:
Aiming at the problem of low accuracy and intelligence of cable force prediction in the cable tensioning process, an intelligent prediction method of prestressed cable force based on digital twins was proposed. According to the current research statu...
Aiming at the problem of low accuracy and intelligence of cable force prediction in the cable tensioning process, an intelligent prediction method of prestressed cable force based on digital twins was proposed. According to the current research statu...
2021, 51(5): 10-15.
doi: 10.13204/j.gyjzG20111112
Abstract:
In recent years, the overall scale, construction speed, complexity and difficulty of engineering construction in China are unprecedented. Large-scale complex structures have exceeded the structural design specifications in terms of complexity, struct...
In recent years, the overall scale, construction speed, complexity and difficulty of engineering construction in China are unprecedented. Large-scale complex structures have exceeded the structural design specifications in terms of complexity, struct...
2021, 51(5): 16-21,36.
doi: 10.13204/j.gyjzG20102908
Abstract:
The spatial grid structure is one of the main structural forms of urban public buildings, which plays a vital role in the public life or transportation lifeline of citizens, and its safety guarantee has important social and engineering significance. ...
The spatial grid structure is one of the main structural forms of urban public buildings, which plays a vital role in the public life or transportation lifeline of citizens, and its safety guarantee has important social and engineering significance. ...
2021, 51(5): 22-29.
doi: 10.13204/j.gyjzG20110602
Abstract:
Initial geometric imperfection of steel structure is an important factor that affects mechanical performance, construction and installation. Traditional measurement methods have shortages such as low efficiency, incomplete data, and insufficient accu...
Initial geometric imperfection of steel structure is an important factor that affects mechanical performance, construction and installation. Traditional measurement methods have shortages such as low efficiency, incomplete data, and insufficient accu...
2021, 51(5): 30-36.
doi: 10.13204/j.gyjzG20112504
Abstract:
Convolution neural network method of deep learning is a high robust method for image crack recognition at present, which is mainly divided into sliding window method and image segmentation method. Sliding window method has the problems of low precisi...
Convolution neural network method of deep learning is a high robust method for image crack recognition at present, which is mainly divided into sliding window method and image segmentation method. Sliding window method has the problems of low precisi...
2021, 51(5): 37-43.
doi: 10.13204.j/gyjzG20112202
Abstract:
Ancestor's Monastery, as one of the representative buildings of "The Center of Heaven and Earth" in Dengfeng city, has an important historical value. As the main hall of Ancestor's Monastery, it is the earliest wooden structure in the ancestor's mona...
Ancestor's Monastery, as one of the representative buildings of "The Center of Heaven and Earth" in Dengfeng city, has an important historical value. As the main hall of Ancestor's Monastery, it is the earliest wooden structure in the ancestor's mona...
2021, 51(5): 44-50,43.
doi: 10.13204/j.gyjzG20110321
Abstract:
This paper mainly studied the flexural behavior of damaged RC beams reinforced by FRP grids. A control beam was designed for a four-point bending test in this study. Based on the test data, a finite element model for analyzing the reinforcement effec...
This paper mainly studied the flexural behavior of damaged RC beams reinforced by FRP grids. A control beam was designed for a four-point bending test in this study. Based on the test data, a finite element model for analyzing the reinforcement effec...
2021, 51(5): 51-55,62.
doi: 10.13204/j.gyjzG20102907
Abstract:
Polymer cement mortar (PCM) has been widely used in the reinforcement of reinforced concrete structure because of its good bond with concrete, but the law of bond degradation between PCM and rebar at high temperatures is still unclear. Experimental s...
Polymer cement mortar (PCM) has been widely used in the reinforcement of reinforced concrete structure because of its good bond with concrete, but the law of bond degradation between PCM and rebar at high temperatures is still unclear. Experimental s...
2021, 51(5): 56-62.
doi: 10.13204/j.gyjz201908300010
Abstract:
A new type of prefabricated concrete shear wall, which is connected by the dark beam with a vertical seam, was proposed to reduce the quantity of cast-in-situ concrete in the edge members of the shear wall, and it also can facilitate the construction...
A new type of prefabricated concrete shear wall, which is connected by the dark beam with a vertical seam, was proposed to reduce the quantity of cast-in-situ concrete in the edge members of the shear wall, and it also can facilitate the construction...
2021, 51(5): 63-69.
doi: 10.13204/j.gyjzG20011903
Abstract:
Taking a five-story reinforced concrete frame structure as an example, the structural properties were compared and analyzed by using YJK and PERFORM-3D programs, and the seismic perfomance of the frame structure with multi-storey unbraced columns and...
Taking a five-story reinforced concrete frame structure as an example, the structural properties were compared and analyzed by using YJK and PERFORM-3D programs, and the seismic perfomance of the frame structure with multi-storey unbraced columns and...
2021, 51(5): 70-75,107.
doi: 10.13204/j.gyjzG20060810
Abstract:
To study the flexural behavior of waste fiber recycled concrete beams, the static loading test of beams were carried out with the replacement rate of recycled aggregates for 0, 50%, 100%, and the volume of waste fiber blending with 0, 0.08%, 0.12%, a...
To study the flexural behavior of waste fiber recycled concrete beams, the static loading test of beams were carried out with the replacement rate of recycled aggregates for 0, 50%, 100%, and the volume of waste fiber blending with 0, 0.08%, 0.12%, a...
2021, 51(5): 76-81,163.
doi: 10.13204/j.gyjzG20052403
Abstract:
A new type of bearing with vertical stiffness that can be adjusted precisely was designed. A 1/10 scale model was established on the basis of a high-rise building above a subway, and the vibration excitation of subway and road traffic environment was...
A new type of bearing with vertical stiffness that can be adjusted precisely was designed. A 1/10 scale model was established on the basis of a high-rise building above a subway, and the vibration excitation of subway and road traffic environment was...
2021, 51(5): 82-92.
doi: 10.13204/j.gyjzG20031809
Abstract:
In steel frame-tube structures (SFTSs), the plastic hinges usually form at column-ends before beam-ends due to the low span-to-height ratio of deep beams, which can lead to lower ductility and energy dissipation capacity of the SFTSs. To address this...
In steel frame-tube structures (SFTSs), the plastic hinges usually form at column-ends before beam-ends due to the low span-to-height ratio of deep beams, which can lead to lower ductility and energy dissipation capacity of the SFTSs. To address this...
2021, 51(5): 93-98,195.
doi: 10.13204/j.gyjzG20032402
Abstract:
Taking the cantilevered string structure of a stadium in Pujiang as a research object, the wind vibration response and equivalent static wind load of the structure based on wind tunnel test data were discussed. A finite element model considering the ...
Taking the cantilevered string structure of a stadium in Pujiang as a research object, the wind vibration response and equivalent static wind load of the structure based on wind tunnel test data were discussed. A finite element model considering the ...
2021, 51(5): 99-107.
doi: 10.13204/j.gyjzG20030706
Abstract:
A series of compression tests were conducted at ambient temperature to investigate the mechanical properties of cold-formed steel stub columns after a fire. The test specimens, including three types of 45 stub columns with open sections, were heated ...
A series of compression tests were conducted at ambient temperature to investigate the mechanical properties of cold-formed steel stub columns after a fire. The test specimens, including three types of 45 stub columns with open sections, were heated ...
2021, 51(5): 108-115,15.
doi: 10.13204/j.gyjzG20081506
Abstract:
It is of great significance to introduce manufactured sand and recycled coarse aggregate into concrete-filled steel tubular (CFST) structures to solve the problems of resource shortage and construction waste pollution. However, there are few studies ...
It is of great significance to introduce manufactured sand and recycled coarse aggregate into concrete-filled steel tubular (CFST) structures to solve the problems of resource shortage and construction waste pollution. However, there are few studies ...
2021, 51(5): 116-123.
doi: 10.13204/j.gyjzG20031020
Abstract:
A kind of T-shaped steel column wrapped with ceramsite concrete was proposed. With the good thermal insulation and impermeability performance of ceramsite concrete, it has been used as covering material to improve column's insulated and fireproof per...
A kind of T-shaped steel column wrapped with ceramsite concrete was proposed. With the good thermal insulation and impermeability performance of ceramsite concrete, it has been used as covering material to improve column's insulated and fireproof per...
MECHANICAL ANALYSIS OF THE INTEGRAL LIFTING PROCESS FOR A LONG-SPAN AND COMPLEX ASSEMBLED STEEL ROOF
2021, 51(5): 124-130,138.
doi: 10.13204/j.gyjzG201906170007
Abstract:
The roof of Fengyang Gymnasium is a long-span complex assembled steel structure composed of steel trusses, inner ring grids and steel cables, the height of the structure is 24 m, the span is 82.2 m, and the projected area is about 11 851 m2. Accordin...
The roof of Fengyang Gymnasium is a long-span complex assembled steel structure composed of steel trusses, inner ring grids and steel cables, the height of the structure is 24 m, the span is 82.2 m, and the projected area is about 11 851 m2. Accordin...
2021, 51(5): 131-138.
doi: 10.13204/j.gyjzG20031405
Abstract:
Under the seismic action, due to the features of the mortise-tenon joint of tenon-through style wooden structures, the relative rotation may be produced between the mortise and tenon, and the mutual extruding between the mortise and tenon will loosen...
Under the seismic action, due to the features of the mortise-tenon joint of tenon-through style wooden structures, the relative rotation may be produced between the mortise and tenon, and the mutual extruding between the mortise and tenon will loosen...
2021, 51(5): 139-144.
doi: 10.13204/j.gyjzG20070215
Abstract:
In bridge engineering, piles not only bear vertical loads, but also are subjectd to lateral loads such as waves, wind, earthquakes and impact loads impacted by carriers. Based on lateral static load tests of two large-diameter bored piles, the bearin...
In bridge engineering, piles not only bear vertical loads, but also are subjectd to lateral loads such as waves, wind, earthquakes and impact loads impacted by carriers. Based on lateral static load tests of two large-diameter bored piles, the bearin...
2021, 51(5): 145-150.
doi: 10.13204/j.gyjzG20022605
Abstract:
The simple conversion method is a common method for transform Q-s curves of self-balanced static load tests into curves of traditional static load tests. The calculation accuracy of compression for piles of being pushed-up determined the accuracy of ...
The simple conversion method is a common method for transform Q-s curves of self-balanced static load tests into curves of traditional static load tests. The calculation accuracy of compression for piles of being pushed-up determined the accuracy of ...
2021, 51(5): 151-157,144.
doi: 10.13204/j.gyjzG20062403
Abstract:
Be aimed at negative frictional resistance on the pile sides caused by collapsing in collapsible loess zones, two kinds of methods to reduce negative frictional resistauce were designed, which were to wrap piles with linoleum or with steel casing pip...
Be aimed at negative frictional resistance on the pile sides caused by collapsing in collapsible loess zones, two kinds of methods to reduce negative frictional resistauce were designed, which were to wrap piles with linoleum or with steel casing pip...
2021, 51(5): 158-163.
doi: 10.13204/j.gyjzG20072406
Abstract:
To explore the laws of fatigue damage for cement-solidified soil under the action of freeze-thaw cycle, the failure modes of strength for cement-solidified soil were defined based on analysis of the stress-strain curves for cement-solidified soil wit...
To explore the laws of fatigue damage for cement-solidified soil under the action of freeze-thaw cycle, the failure modes of strength for cement-solidified soil were defined based on analysis of the stress-strain curves for cement-solidified soil wit...
2021, 51(5): 164-167,187.
doi: 10.13204/j.gyjzG20061201
Abstract:
The Casagrande method is a famous graphic method to obtain pre-consolidation pressure from consolidation test data, in which the one of the procedures is fitting the second half curve of compression curves based on the point of the greatest curvature...
The Casagrande method is a famous graphic method to obtain pre-consolidation pressure from consolidation test data, in which the one of the procedures is fitting the second half curve of compression curves based on the point of the greatest curvature...
2021, 51(5): 168-172.
doi: 10.13204/j.gyjzG20041302
Abstract:
To verify the effectiveness of marine sand desalination and the accuracy of testing methods for chloride ion content from marine sand, submarine sand, desalted sea sand and seabeach sand immersed were respectively in three solvents that were deionize...
To verify the effectiveness of marine sand desalination and the accuracy of testing methods for chloride ion content from marine sand, submarine sand, desalted sea sand and seabeach sand immersed were respectively in three solvents that were deionize...
2021, 51(5): 173-180.
doi: 10.13204/j.gyjzG20010806
Abstract:
On the basis of constructing an evaluation index system for the coupling and coordination of the construction industry and the regional economy, taking various province in China as the research unit, the entropy method and the coupling coordination d...
On the basis of constructing an evaluation index system for the coupling and coordination of the construction industry and the regional economy, taking various province in China as the research unit, the entropy method and the coupling coordination d...
2021, 51(5): 181-187.
doi: 10.13204/j.gyjzG20011305
Abstract:
Fatigue failure is a common form of failure of welded steel bridges under cyclic loading. In order to extend its life, the cracked structure needs to be strengthened and repaired. Due to its excellent performance, CFRP has been widely used in the rei...
Fatigue failure is a common form of failure of welded steel bridges under cyclic loading. In order to extend its life, the cracked structure needs to be strengthened and repaired. Due to its excellent performance, CFRP has been widely used in the rei...
2021, 51(5): 188-195.
doi: 10.13204/j.gyjzG20050301
Abstract:
A kind of self-compacting micro-expanded reactive powder concrete (RPC) with high performance and high strength was prepared. The RPC was cured at conventional temperature and its fluidity was greater than 255 mm. The RPC was filled into glass fiber-...
A kind of self-compacting micro-expanded reactive powder concrete (RPC) with high performance and high strength was prepared. The RPC was cured at conventional temperature and its fluidity was greater than 255 mm. The RPC was filled into glass fiber-...
2021, 51(5): 196-203.
doi: 10.13204/j.gyjzG20050606
Abstract:
In order to monitor the damage process of confined concrete elements in buildings and establish an early-warning index to predict the failure status in real-time, four experimental tests of circular concrete columns confined by BFRP (Basalt Fiber Rei...
In order to monitor the damage process of confined concrete elements in buildings and establish an early-warning index to predict the failure status in real-time, four experimental tests of circular concrete columns confined by BFRP (Basalt Fiber Rei...
2021, 51(5): 204-211,203.
doi: 10.13204/j.gyjzG20052404
Abstract:
Soil work refers to the soil construction of foundation engineering of Chinese ancient buildings. To effectively protect Chinese ancient buildings, the foundations in the Forbidden City were taken as examples, their soil work techniques were studied ...
Soil work refers to the soil construction of foundation engineering of Chinese ancient buildings. To effectively protect Chinese ancient buildings, the foundations in the Forbidden City were taken as examples, their soil work techniques were studied ...
