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2021 Vol. 51, No. 7
Display Method:
2021, 51(7): 1-5,24.
doi: 10.13204/j.gyjzG20102911
Abstract:
In view of the urgent need of dependably technical supports and guidance in safety appraisals and further maintenance decisions for immersed tunnels in operation in China, to explore the long-term evolution laws and causes of structural performances ...
In view of the urgent need of dependably technical supports and guidance in safety appraisals and further maintenance decisions for immersed tunnels in operation in China, to explore the long-term evolution laws and causes of structural performances ...
2021, 51(7): 6-10,38.
doi: 10.13204/j.gyjzG20112306
Abstract:
The scour and deposition in deep channel sections of a river bed make the longitudinal loads acting on river-crossing tunnels complicated and affect the longitudinal deformation of tunnels. Based on the river-crossing tunnel project of Nanjing Metro,...
The scour and deposition in deep channel sections of a river bed make the longitudinal loads acting on river-crossing tunnels complicated and affect the longitudinal deformation of tunnels. Based on the river-crossing tunnel project of Nanjing Metro,...
2021, 51(7): 11-17.
doi: 10.13204/j.gyjzG20072217
Abstract:
As a key index to judge the mechanical properties of soil, the relative density is also an important index for the classification of surrounding rock grades. It is of great significance to study the influence on stratum subsidence and stress during t...
As a key index to judge the mechanical properties of soil, the relative density is also an important index for the classification of surrounding rock grades. It is of great significance to study the influence on stratum subsidence and stress during t...
2021, 51(7): 18-24.
doi: 10.13204/j.gyjzG20072901
Abstract:
Based on a highway loess tunnel, the uniaxial creep tests of undisturbed Q2 loess in the different moisture content were conducted to explore the creep properties, and the effect of long-term deformation on the evolution laws of surrounding rock pres...
Based on a highway loess tunnel, the uniaxial creep tests of undisturbed Q2 loess in the different moisture content were conducted to explore the creep properties, and the effect of long-term deformation on the evolution laws of surrounding rock pres...
2021, 51(7): 25-30.
doi: 10.13204/j.gyjzG21031806
Abstract:
In the complex geological environment, it is difficult to accurately calculate the water and earth pressure on shield tunnels. Based on the Jinan Metro line R2 as research basis, two representative sections were selected to measure the water and eart...
In the complex geological environment, it is difficult to accurately calculate the water and earth pressure on shield tunnels. Based on the Jinan Metro line R2 as research basis, two representative sections were selected to measure the water and eart...
2021, 51(7): 31-38.
doi: 10.13204/j.gyjzG20040307
Abstract:
According to a practical project, a scale model of 1:100 was constructed, the load-bearing characteristics of anti-silde piles and lining structure for tunnels in the tunnel-landslide system with three kinds of pile spacing were studied, the top disp...
According to a practical project, a scale model of 1:100 was constructed, the load-bearing characteristics of anti-silde piles and lining structure for tunnels in the tunnel-landslide system with three kinds of pile spacing were studied, the top disp...
2021, 51(7): 39-46,63.
doi: 10.13204/j.gyjzG21040603
Abstract:
To study seismic responses of twin tunnels with different lining stiffness, the seismic responses of twin tunnels with different lining stiffness was calculated and analyzed by the wave theory and combined with numerical calculation methods, taking t...
To study seismic responses of twin tunnels with different lining stiffness, the seismic responses of twin tunnels with different lining stiffness was calculated and analyzed by the wave theory and combined with numerical calculation methods, taking t...
2021, 51(7): 47-56.
doi: 10.13204/j.gyjzG20061104
Abstract:
The full-scale segmental model test and corresponding analysis were conducted on the assembly monolithic concrete utility tunnel with double compartments to obtain its mechanical performances. The results showed that:1) the failure mode for the large...
The full-scale segmental model test and corresponding analysis were conducted on the assembly monolithic concrete utility tunnel with double compartments to obtain its mechanical performances. The results showed that:1) the failure mode for the large...
2021, 51(7): 57-63.
doi: 10.13204/j.gyjzG20071312
Abstract:
The seismic resistance performances of square single utility tunnels-a shallowly buried slender structure, plays an important role in the safety of lifeline projects and the stability of cities. Based on the three-dimensional finite element method, a...
The seismic resistance performances of square single utility tunnels-a shallowly buried slender structure, plays an important role in the safety of lifeline projects and the stability of cities. Based on the three-dimensional finite element method, a...
2021, 51(7): 64-70,97.
doi: 10.13204/j.gyjzG20102503
Abstract:
The longitudinal structural performances of the prefabricated cable tunnels in soft soil foundation in the cases of uneven subsidence were analyzed by the finite element mothod, which respectively have plain joints with prestressing tendons and tongu...
The longitudinal structural performances of the prefabricated cable tunnels in soft soil foundation in the cases of uneven subsidence were analyzed by the finite element mothod, which respectively have plain joints with prestressing tendons and tongu...
2021, 51(7): 71-77,176.
doi: 10.13204/j.gyjzG20071312
Abstract:
In order to reduce seismic impacts on the operation safety of internal pipes in urban utility tunnels, two new types of seismic supports were developed, the finite element models of the traditional rock-tunnel support system and two types of rock-tun...
In order to reduce seismic impacts on the operation safety of internal pipes in urban utility tunnels, two new types of seismic supports were developed, the finite element models of the traditional rock-tunnel support system and two types of rock-tun...
2021, 51(7): 78-83,112.
doi: 10.13204/j.gyjzG20072118
Abstract:
As the important capital of modern China, Beijing witnessed the great impact of western industrial revolution in the late Qing Dynasty, and became one of the cities that started the industrialization process earlier. After the rule of the Qing govern...
As the important capital of modern China, Beijing witnessed the great impact of western industrial revolution in the late Qing Dynasty, and became one of the cities that started the industrialization process earlier. After the rule of the Qing govern...
2021, 51(7): 84-89,106.
doi: 10.13204/j.gyjzG21012603
Abstract:
The non-Gaussian distribution characteristics of fluctuating wind loads on a long-span curved roof and the determination method for the peak factor of wind loads in the non-Gaussian distribation region were studied by using synchronous pressure measu...
The non-Gaussian distribution characteristics of fluctuating wind loads on a long-span curved roof and the determination method for the peak factor of wind loads in the non-Gaussian distribation region were studied by using synchronous pressure measu...
2021, 51(7): 90-97.
doi: 10.13204/j.gyjzG20081303
Abstract:
A wind load is the control load in the design of long-span space structure and membrane structure. Taking a practical engineering of streamlined membrane structure with a single ridge as an example, based on the Reynolds time averaged equation and sh...
A wind load is the control load in the design of long-span space structure and membrane structure. Taking a practical engineering of streamlined membrane structure with a single ridge as an example, based on the Reynolds time averaged equation and sh...
2021, 51(7): 98-106.
doi: 10.13204/j.gyjzG20072305
Abstract:
The reinforced concrete (RC) frame structure with energy-dissipative outdoor-wall cladding panels (EDCP) is a new kind of structural system, in which the U-shaped steel dampers (USDs) are used to connect the cladding panels and the frame structure. T...
The reinforced concrete (RC) frame structure with energy-dissipative outdoor-wall cladding panels (EDCP) is a new kind of structural system, in which the U-shaped steel dampers (USDs) are used to connect the cladding panels and the frame structure. T...
2021, 51(7): 107-112.
doi: 10.13204/j.gyjzG19120306
Abstract:
To understand the bond performances between concrete mixed with rubber and rebars in the freeze-thaw environment, rebars were slotted and then strain gauges were stuck crosswise on the groove surface, finaly, the rebars were closed and embedded in th...
To understand the bond performances between concrete mixed with rubber and rebars in the freeze-thaw environment, rebars were slotted and then strain gauges were stuck crosswise on the groove surface, finaly, the rebars were closed and embedded in th...
2021, 51(7): 113-122,208.
doi: 10.13204/j.gyjzG2010908
Abstract:
To sutdy the global buckling property of cold-formed thin-walled lipped channel columns with web openings and the calculated method of the overall stability and loading capacity for the compressive columns, based on the effective width method, the te...
To sutdy the global buckling property of cold-formed thin-walled lipped channel columns with web openings and the calculated method of the overall stability and loading capacity for the compressive columns, based on the effective width method, the te...
2021, 51(7): 123-128.
doi: 10.13204/j.gyjzG21041302
Abstract:
To evaluate the threat of horizontal surface deformation caused by mining to the safety of transmission lines, a typical 220 kV transmission tower line system was taken as the research object and its finite element model was constructed by ANSYS. Con...
To evaluate the threat of horizontal surface deformation caused by mining to the safety of transmission lines, a typical 220 kV transmission tower line system was taken as the research object and its finite element model was constructed by ANSYS. Con...
2021, 51(7): 129-136.
doi: 10.13204/j.gyjzG20031003
Abstract:
A new type of connections between square steel tube columns and H-type beams with inner sleeves was proposed. Moving the splice joints of columns above the panel zone provided spaces for installation of high-strength bolts, while ensured the continui...
A new type of connections between square steel tube columns and H-type beams with inner sleeves was proposed. Moving the splice joints of columns above the panel zone provided spaces for installation of high-strength bolts, while ensured the continui...
2021, 51(7): 137-144.
doi: 10.13204/j.gyjzG20070705
Abstract:
To study the seismic performance of base joints for prefabricated composite steel-concrete columns, three new specimens with different ratios of shear span to effective length were conducted by quasi-static tests. The finite-element software ABAQUS w...
To study the seismic performance of base joints for prefabricated composite steel-concrete columns, three new specimens with different ratios of shear span to effective length were conducted by quasi-static tests. The finite-element software ABAQUS w...
2021, 51(7): 145-150,202.
doi: 10.13204/j.gyjzG20070402
Abstract:
To improve the performances of shear walls and the assembly degrees, a novel type of prefabricated cold-formed thin-wall steel walls filled with light weight polymer mortar (LPM) was developed. The shear performance test for six shear walls were cond...
2021, 51(7): 151-155.
doi: 10.13204/j.gyjzG19112904
Abstract:
Eight kinds of recycled brick concrete(PFRB concrete)with polypropylene fibers were designed, in which the fiber content was different. The mechanical tests were conducted. The influence of the fiber content on the mechanical properties (cube compres...
Eight kinds of recycled brick concrete(PFRB concrete)with polypropylene fibers were designed, in which the fiber content was different. The mechanical tests were conducted. The influence of the fiber content on the mechanical properties (cube compres...
RESEARCH ON OPTIMIZATION OF PROPORTIONS FOR HIGHLY DURABLE CONCRETE MIX BASED ON RF-NSGA-Ⅱ ALGORITHM
2021, 51(7): 156-161.
doi: 10.13204/j.gyjzG20070812
Abstract:
The problem of insufficient durability for concrete has always been a serious in the complex environment of high cold areas. It is of great significance to design the proportion of concrete mix to ensure the good working performances and durability o...
The problem of insufficient durability for concrete has always been a serious in the complex environment of high cold areas. It is of great significance to design the proportion of concrete mix to ensure the good working performances and durability o...
2021, 51(7): 162-169.
doi: 10.13204/j.gyjzG20052201
Abstract:
According to replacement rates of recycled coarse aggregate (RCA) of 0%, 50%, 100%, the compressive creep tests of recycled course aggreagte concrete were conducted. The creep properties of recycled coarse aggregate concrete (RAC) were studied. The e...
According to replacement rates of recycled coarse aggregate (RCA) of 0%, 50%, 100%, the compressive creep tests of recycled course aggreagte concrete were conducted. The creep properties of recycled coarse aggregate concrete (RAC) were studied. The e...
2021, 51(7): 170-176.
doi: 10.13204/j.gyjzG21011111
Abstract:
The plant-fiber-reinforced alkali-activated-slag cementitious material is a kind of new green building material with a great application prospect. The application of industrial and agricultural wastes such as slag and straw can be not only reduce the...
The plant-fiber-reinforced alkali-activated-slag cementitious material is a kind of new green building material with a great application prospect. The application of industrial and agricultural wastes such as slag and straw can be not only reduce the...
2021, 51(7): 177-184.
doi: 10.13204/j.gyjzG20052805
Abstract:
In the face of the global energy crisis and environmental deterioration, passive solar buildings have attracted much attention due to their features of low energy consumption, low cost and no pollution. Scholars all over the world have conducted exte...
In the face of the global energy crisis and environmental deterioration, passive solar buildings have attracted much attention due to their features of low energy consumption, low cost and no pollution. Scholars all over the world have conducted exte...
2021, 51(7): 185-193.
doi: 10.13204/j.gyjzG19121615
Abstract:
Based on the quasi-static test, the aseismic properties of earthquake-damaged joints for assembled monolithic concrete frames strengthened with carbon fiber sheets were studied. The effects of failure modes, hysteretic curves, skeleton curves, displa...
Based on the quasi-static test, the aseismic properties of earthquake-damaged joints for assembled monolithic concrete frames strengthened with carbon fiber sheets were studied. The effects of failure modes, hysteretic curves, skeleton curves, displa...
2021, 51(7): 194-202.
doi: 10.13204/j.gyjzG20070105
Abstract:
The glass fiber reinforced polymer (GFRP) circular members have been extensively applied in power engineering because of its good insulation performance. A finite element model reflecting the anisotropy of GFRP fiber sheets was constructed for GFRP p...
The glass fiber reinforced polymer (GFRP) circular members have been extensively applied in power engineering because of its good insulation performance. A finite element model reflecting the anisotropy of GFRP fiber sheets was constructed for GFRP p...
2021, 51(7): 203-208.
doi: 10.13204/j.gyjzG20092308
Abstract:
The Kiewitt (K6) spherical reticulated shell was used as the research object to study the data-driven damage prediction and assessment of the space frame structure. By numerical simulations, Structural Health Monitoring (SHM) simulation data of struc...
The Kiewitt (K6) spherical reticulated shell was used as the research object to study the data-driven damage prediction and assessment of the space frame structure. By numerical simulations, Structural Health Monitoring (SHM) simulation data of struc...
2021, 51(7): 209-215,56.
doi: 10.13204/j.gyjzG20090207
Abstract:
In the industrial age, a large number of railway transportation networks were formed in Paris urban area. Under the background of industrial recession and urban regeneration, the urban abandoned railways and areas along railways have become potential...
In the industrial age, a large number of railway transportation networks were formed in Paris urban area. Under the background of industrial recession and urban regeneration, the urban abandoned railways and areas along railways have become potential...
