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2022 Vol. 52, No. 10
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2022, 52(10): 1-8,70.
doi: 10.13204/j.gyjzG22082202
Abstract:
Concrete structures in corrosive environment often suffer from reinforcement corrosion, which leads to durability degradation and shortens the service life of these structures. The safe and durable operation and maintenance of concrete structures are...
Concrete structures in corrosive environment often suffer from reinforcement corrosion, which leads to durability degradation and shortens the service life of these structures. The safe and durable operation and maintenance of concrete structures are...
2022, 52(10): 9-15.
doi: 10.13204/j.gyjzG22072513
Abstract:
Although glass curtain walls are widely used in large-scale and high-rise buildings in China, relevant safety issues are becoming increasingly prominent. This paper used the accident cases in recent years to analyze the main safety hazard types and m...
Although glass curtain walls are widely used in large-scale and high-rise buildings in China, relevant safety issues are becoming increasingly prominent. This paper used the accident cases in recent years to analyze the main safety hazard types and m...
2022, 52(10): 16-21,15.
doi: 10.13204/j.gyjzG22061712
Abstract:
Durability deterioration of marine structures in nuclear power plants causes the reinforcement corrosion and may lead to concrete cracking, delamination, and spalling, which poses a great threat to the safety and durability of structures. The conside...
Durability deterioration of marine structures in nuclear power plants causes the reinforcement corrosion and may lead to concrete cracking, delamination, and spalling, which poses a great threat to the safety and durability of structures. The conside...
2022, 52(10): 22-27.
doi: 10.13204/j.gyjzG22071401
Abstract:
Steel structures suffer from surface damage all the time due to their material properties and insufficient daily management. With the development of digital information technology, computer vision techniques have become key means in damage identifica...
Steel structures suffer from surface damage all the time due to their material properties and insufficient daily management. With the development of digital information technology, computer vision techniques have become key means in damage identifica...
2022, 52(10): 28-38,45.
doi: 10.13204/j.gyjzG22041612
Abstract:
Existing codes and standards adopt qualitative and quantitative methods to assess the safety of concrete frame structures, which can hardly judge the relative safety of structures at the same safety level. According to the stress characteristics of c...
Existing codes and standards adopt qualitative and quantitative methods to assess the safety of concrete frame structures, which can hardly judge the relative safety of structures at the same safety level. According to the stress characteristics of c...
2022, 52(10): 39-45.
doi: 10.13204/j.gyjzG22060906
Abstract:
Shrinkage and creep of concrete, and relaxation of prestressed tendons will cause loss of prestress, and which then affect long-term performances of prestressed concrete structures. The calculated values of long-term prestress loss obtained according...
Shrinkage and creep of concrete, and relaxation of prestressed tendons will cause loss of prestress, and which then affect long-term performances of prestressed concrete structures. The calculated values of long-term prestress loss obtained according...
2022, 52(10): 46-52.
doi: 10.13204/j.gyjzG22012407
Abstract:
For the ultra-long and complex isolation structures, the isolation supports engendered a large lateral displacement phenomenon easily during construction stages. Real-time and accurate deformation monitoring for isolation supports is an effective bas...
For the ultra-long and complex isolation structures, the isolation supports engendered a large lateral displacement phenomenon easily during construction stages. Real-time and accurate deformation monitoring for isolation supports is an effective bas...
2022, 52(10): 53-60.
doi: 10.13204/j.gyjzG22070112
Abstract:
Based on computer vision, the procedure of recognizing wide-range cracks on the surface of concrete members was presented by obtaining the wide-range crack images through image stitching, and identifying cracks by the threshold segmentation. Adopting...
Based on computer vision, the procedure of recognizing wide-range cracks on the surface of concrete members was presented by obtaining the wide-range crack images through image stitching, and identifying cracks by the threshold segmentation. Adopting...
2022, 52(10): 61-70.
doi: 10.13204/j.gyjzG22042522
Abstract:
The implicit dynamic analysis by finite-element (FE) software ABAQUS was utilized to conduct numerical simulations on the demolition and collapse process of three common plane truss structures, namely, orthogonal, orthogonal diagonal, and three-dimen...
The implicit dynamic analysis by finite-element (FE) software ABAQUS was utilized to conduct numerical simulations on the demolition and collapse process of three common plane truss structures, namely, orthogonal, orthogonal diagonal, and three-dimen...
2022, 52(10): 71-77.
doi: 10.13204/j.gyjzG22062310
Abstract:
So far, damage identification of string structures based on dynamic detection can be only qualitatively estimated. Aiming at the subsistent problem, a method which could quantitatively identify curvature model parameters was proposed. The improved ab...
So far, damage identification of string structures based on dynamic detection can be only qualitatively estimated. Aiming at the subsistent problem, a method which could quantitatively identify curvature model parameters was proposed. The improved ab...
2022, 52(10): 78-83.
doi: 10.13204/j.gyjzG21112501
Abstract:
The effectiveness of the wavelet packet energy curvature difference for damage identification has been verified by numerical simulations, laboratory tests, and engineering projects, but the quantitative analysis of structural damage is lacking. Takin...
The effectiveness of the wavelet packet energy curvature difference for damage identification has been verified by numerical simulations, laboratory tests, and engineering projects, but the quantitative analysis of structural damage is lacking. Takin...
2022, 52(10): 84-88,77.
doi: 10.13204/j.gyjzG22070417
Abstract:
The nuclear power plant containment is an important physical barrier to ensure the safe operation of nuclear power units. The Containment Tightness Test (CTT) is an important means to verify the strength and tightness of the containment structure. Be...
The nuclear power plant containment is an important physical barrier to ensure the safe operation of nuclear power units. The Containment Tightness Test (CTT) is an important means to verify the strength and tightness of the containment structure. Be...
2022, 52(10): 89-93,105.
doi: 10.13204/j.gyjzG22072913
Abstract:
The fiber-Bragg-grating (FBG) self-sensing anchor cable was used to carry out an experimental monitoring application in the foundation pit support engineering of a stadium with a "double-row pile + anchor cable" in a muddy geological environment. The...
The fiber-Bragg-grating (FBG) self-sensing anchor cable was used to carry out an experimental monitoring application in the foundation pit support engineering of a stadium with a "double-row pile + anchor cable" in a muddy geological environment. The...
2022, 52(10): 94-99,110.
doi: 10.13204/j.gyjzG22073006
Abstract:
The ultra-long concrete structure produces internal force and deformation with temperature change and concrete shrinkage, which results in the cracking of horizontal structure specimens exceeding the tensile strength of the concrete. For an ultra-lon...
The ultra-long concrete structure produces internal force and deformation with temperature change and concrete shrinkage, which results in the cracking of horizontal structure specimens exceeding the tensile strength of the concrete. For an ultra-lon...
2022, 52(10): 100-105.
doi: 10.13204/j.gyjzG22042613
Abstract:
A concrete frame structure needs to be reconstructed due to functional updating. In order to meet the requirements of large space, massive columns, beams, and plates need to be demolished, which indicates a high safety risk. Therefore, finite element...
A concrete frame structure needs to be reconstructed due to functional updating. In order to meet the requirements of large space, massive columns, beams, and plates need to be demolished, which indicates a high safety risk. Therefore, finite element...
2022, 52(10): 106-110.
doi: 10.13204/j.gyjzG20110607
Abstract:
In order to realize the intelligent monitoring of the incremental launching construction of a precast frame bridge, this paper took the incremental launching construction of the frame bridge in Shanjuan road under Changde-Zhangjiajie expressway in Ch...
In order to realize the intelligent monitoring of the incremental launching construction of a precast frame bridge, this paper took the incremental launching construction of the frame bridge in Shanjuan road under Changde-Zhangjiajie expressway in Ch...
2022, 52(10): 111-114,188.
doi: 10.13204/j.gyjzG22041104
Abstract:
The quality deterioration degree of modern brick-wood houses in Shanghai is affected by various factors and involves a large amount of data. Since indicators are ordered categorical variables, and there is a correlation between them, the principal co...
The quality deterioration degree of modern brick-wood houses in Shanghai is affected by various factors and involves a large amount of data. Since indicators are ordered categorical variables, and there is a correlation between them, the principal co...
2022, 52(10): 115-121.
doi: 10.13204/j.gyjzG22071808
Abstract:
In order to regulate the early shrinkage and cracking of the concrete, the influence of combined expansive agent and internal curing water of super absorbent polymer (SAP) on the regulation laws of early shrinkage and mechanical strength of concrete ...
In order to regulate the early shrinkage and cracking of the concrete, the influence of combined expansive agent and internal curing water of super absorbent polymer (SAP) on the regulation laws of early shrinkage and mechanical strength of concrete ...
2022, 52(10): 122-130.
doi: 10.13204/j.gyjzG22072710
Abstract:
Deficient circular and square concrete-filled steel tube (CFST) columns can be reinforced with outer steel tubes effectively. In this paper, ABAQUS was utilized to establish finite element models for the circular and square CFST columns reinforced wi...
Deficient circular and square concrete-filled steel tube (CFST) columns can be reinforced with outer steel tubes effectively. In this paper, ABAQUS was utilized to establish finite element models for the circular and square CFST columns reinforced wi...
2022, 52(10): 131-138.
doi: 10.13204/j.gyjzG22073005
Abstract:
Concrete structures in coastal areas, salt lakes, and deicing salt areas are seriously eroded by chloride ions, which has caused great economic losses. Traditional chloride transport models based on Fick's second law fail to consider influencing fact...
Concrete structures in coastal areas, salt lakes, and deicing salt areas are seriously eroded by chloride ions, which has caused great economic losses. Traditional chloride transport models based on Fick's second law fail to consider influencing fact...
2022, 52(10): 139-145.
doi: 10.13204/j.gyjzG22042907
Abstract:
As China's urban regeneration continues, old industrial buildings are being renovated in full swing. At present, the renovation mainly focuses on function replacement, architecture form, and spatial layout, but it fails to consider the improvement of...
As China's urban regeneration continues, old industrial buildings are being renovated in full swing. At present, the renovation mainly focuses on function replacement, architecture form, and spatial layout, but it fails to consider the improvement of...
2022, 52(10): 146-155,138.
doi: 10.13204/j.gyjzG22071409
Abstract:
The composite shear wall of concrete filled steel tube (CFST) reinforced with corrugated steel plates is a new structural lateral force resistance system. It adopts a design featuring separate load-bearing and lateral force resistance and fully exert...
The composite shear wall of concrete filled steel tube (CFST) reinforced with corrugated steel plates is a new structural lateral force resistance system. It adopts a design featuring separate load-bearing and lateral force resistance and fully exert...
2022, 52(10): 156-160,203.
doi: 10.13204/j.gyjzG22072920
Abstract:
Timber-concrete composite structure can significantly improve the structural performance of timber buildings and can be widely mostly used in multi-story and high-rise timber buildings. However, due to the lack of research on the vibration performanc...
Timber-concrete composite structure can significantly improve the structural performance of timber buildings and can be widely mostly used in multi-story and high-rise timber buildings. However, due to the lack of research on the vibration performanc...
2022, 52(10): 161-167,228.
doi: 10.13204/j.gyjzG22030414
Abstract:
High ductile concrete (HDC) has positive ductility, bond property, and damage resistance feature. Therefore, it can be used to reinforce damaged concrete beams, which can not only improve the bearing capacity of the beams, but also prevent the furthe...
High ductile concrete (HDC) has positive ductility, bond property, and damage resistance feature. Therefore, it can be used to reinforce damaged concrete beams, which can not only improve the bearing capacity of the beams, but also prevent the furthe...
2022, 52(10): 168-175,145.
doi: 10.13204/j.gyjzG22052104
Abstract:
In order to scientifically and reasonably study the design optimization of RC simply-supported T-beams with external prestressing reinforcement, a design optimization method for external prestressing reinforcement based on the target reliability was ...
In order to scientifically and reasonably study the design optimization of RC simply-supported T-beams with external prestressing reinforcement, a design optimization method for external prestressing reinforcement based on the target reliability was ...
2022, 52(10): 176-181,194.
doi: 10.13204/j.gyjzG22050206
Abstract:
H-shaped steel bolted welded joints have excellent welding performance and are widely used in steel buildings. However, during the construction, the joints often show welding defects such as misalignment, air holes, and slag inclusion, which do not m...
H-shaped steel bolted welded joints have excellent welding performance and are widely used in steel buildings. However, during the construction, the joints often show welding defects such as misalignment, air holes, and slag inclusion, which do not m...
2022, 52(10): 182-188.
doi: 10.13204/j.gyjzG22062717
Abstract:
This paper analyzed the topographic and geological characteristics, deformation process and trend, landslide causes, stability, treatment plan, and monitoring data of the Zhengjiayuan tunnel-landslide oblique system. In addition, a comprehensive trea...
This paper analyzed the topographic and geological characteristics, deformation process and trend, landslide causes, stability, treatment plan, and monitoring data of the Zhengjiayuan tunnel-landslide oblique system. In addition, a comprehensive trea...
2022, 52(10): 189-194.
doi: 10.13204/j.gyjzG22073102
Abstract:
To improve the overall performance of the subway station, Shenzhen Huangmugang transportation hub project needs to comprehensively renovate a long wall of 456.7 m of the operating subway station on three floors of the basement. In order to ensure ope...
To improve the overall performance of the subway station, Shenzhen Huangmugang transportation hub project needs to comprehensively renovate a long wall of 456.7 m of the operating subway station on three floors of the basement. In order to ensure ope...
2022, 52(10): 195-203.
doi: 10.13204/j.gyjzG22073009
Abstract:
As the process of social informatization accelerates, information technologies have gradually become an important means for construction practitioners to improve the quality of engineering management. As a key component of the digital development of ...
As the process of social informatization accelerates, information technologies have gradually become an important means for construction practitioners to improve the quality of engineering management. As a key component of the digital development of ...
2022, 52(10): 204-210,235.
doi: 10.13204/j.gyjzG22073107
Abstract:
The process of mapping data from a building operation and maintenance system to building digital twins is exposed to various problems, such as discrete data, multi-source heterogeneous data, and poorly effective queries, and so on. To solve those pro...
The process of mapping data from a building operation and maintenance system to building digital twins is exposed to various problems, such as discrete data, multi-source heterogeneous data, and poorly effective queries, and so on. To solve those pro...
2022, 52(10): 211-218.
doi: 10.13204/j.gyjzG22071916
Abstract:
To discover the damages to load-bearing wall structures caused by property owners' unauthorized reconstruction in residential buildings in a timely manner, this paper proposed a health monitoring method based on wavelet packet transform for building ...
To discover the damages to load-bearing wall structures caused by property owners' unauthorized reconstruction in residential buildings in a timely manner, this paper proposed a health monitoring method based on wavelet packet transform for building ...
2022, 52(10): 219-223,218.
doi: 10.13204/j.gyjzG22073011
Abstract:
The traditional management system for building maintenance work orders is highly likely to ignore the analysis of the textual description part of a work order. Consequently, valuable information is submerged in a large amount of messy data, which mak...
The traditional management system for building maintenance work orders is highly likely to ignore the analysis of the textual description part of a work order. Consequently, valuable information is submerged in a large amount of messy data, which mak...
2022, 52(10): 224-228.
doi: 10.13204/j.gyjzG22060707
Abstract:
To grasp the health status of overage transmission tower structures in real time, this paper built a wireless sensor network-based structural health status monitoring system for the four transmission towers currently in operation in Linyi, Shandong P...
To grasp the health status of overage transmission tower structures in real time, this paper built a wireless sensor network-based structural health status monitoring system for the four transmission towers currently in operation in Linyi, Shandong P...
2022, 52(10): 229-235.
doi: 10.13204/j.gyjzG22072610
Abstract:
This study is designed to accurately assess the probability of impact damage to downstream structures caused by debris flows after the dam failure of tailings reservoirs and the severity of the damage. Specifically, an impact risk assessment system f...
This study is designed to accurately assess the probability of impact damage to downstream structures caused by debris flows after the dam failure of tailings reservoirs and the severity of the damage. Specifically, an impact risk assessment system f...
2022, 52(10): 236-241.
doi: 10.13204/j.gyjzG22072810
Abstract:
Municipal facilities are an important part of urban management. Traditional municipal facility management and maintenance, mainly passive operation and maintenance in the form of "problem discovery and problem solving", is a weak link in refined urba...
Municipal facilities are an important part of urban management. Traditional municipal facility management and maintenance, mainly passive operation and maintenance in the form of "problem discovery and problem solving", is a weak link in refined urba...
2022, 52(10): 242-245.
doi: 10.13204/j.gyjzG21121316
Abstract:
The finite element method was used to simulate diversion canal slopes. The calculated displacement values and soil material mechanical parameter values were substituted into the input layer and output layer of the RBF neural network for training. The...
The finite element method was used to simulate diversion canal slopes. The calculated displacement values and soil material mechanical parameter values were substituted into the input layer and output layer of the RBF neural network for training. The...
2022, 52(10): 246-252,241.
doi: 10.13204/j.gyjzG22072603
Abstract:
Taking a 220 kV double-circuit suspension tower as the research object, this study built a finite-element tower-line system model to parametrically analyze the deformations and stresses of the tower lines in the cases of settlement and slip of the fo...
Taking a 220 kV double-circuit suspension tower as the research object, this study built a finite-element tower-line system model to parametrically analyze the deformations and stresses of the tower lines in the cases of settlement and slip of the fo...
