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2020 Vol. 50, No. 6
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2020, 50(6): 1-5,28.
doi: 10.13204/j.gyjz202006001
Abstract:
In order to demonstrate the feasibility of eliminating foundation collapasibility for the two-way soil displacement screw pile (SDS pile) on self-weight collapsible loess, the compaction test of the single and group pile were carried out on the site ...
In order to demonstrate the feasibility of eliminating foundation collapasibility for the two-way soil displacement screw pile (SDS pile) on self-weight collapsible loess, the compaction test of the single and group pile were carried out on the site ...
2020, 50(6): 6-10.
doi: 10.13204/j.gyjz202006002
Abstract:
Based on full scale in-situ immersion tests of SDS piles, the results showed that as the compacting effect of SDS piles, the negative friction resistance of the single pile would be increased, informally called as "factting pile effect". Through rese...
Based on full scale in-situ immersion tests of SDS piles, the results showed that as the compacting effect of SDS piles, the negative friction resistance of the single pile would be increased, informally called as "factting pile effect". Through rese...
2020, 50(6): 11-15.
doi: 10.13204/j.gyjz202006003
Abstract:
Soil displacement screw(SDS)piles have been widely used in engineering fields, but the theoretical basis of design for SDS piles in collopsible loess zones was still absent. In order to explore the mechanical properties under immersion states, a full...
Soil displacement screw(SDS)piles have been widely used in engineering fields, but the theoretical basis of design for SDS piles in collopsible loess zones was still absent. In order to explore the mechanical properties under immersion states, a full...
2020, 50(6): 16-21.
doi: 10.13204/j.gyjz202006004
Abstract:
Tests have proved that in the collapsible loess, the use of the squeezing effect of soil displacement screw (SDS) piles in the process of pile formation, by adjusting the pile spacing, could not only eliminate the collapsibility of soil around piles,...
Tests have proved that in the collapsible loess, the use of the squeezing effect of soil displacement screw (SDS) piles in the process of pile formation, by adjusting the pile spacing, could not only eliminate the collapsibility of soil around piles,...
2020, 50(6): 29-38.
doi: 10.13204/j.gyjz202006006
Abstract:
The function structure of underground spaces in core zones of urban central railway stations (CAUCRS)is very complicated, and the cognition of its function structure still needs to be deepened. Based on the classification of underground spaces of CAU...
The function structure of underground spaces in core zones of urban central railway stations (CAUCRS)is very complicated, and the cognition of its function structure still needs to be deepened. Based on the classification of underground spaces of CAU...
2020, 50(6): 39-44,21.
doi: 10.13204/j.gyjz202006007
Abstract:
In order to study seismic properties of prestressed concrete beams in acid rain corrosion environment, the quasi-static loading tests on 8 prestressed concrete beam specimens were conducted, the failure modes of specimens and the characteristics of t...
In order to study seismic properties of prestressed concrete beams in acid rain corrosion environment, the quasi-static loading tests on 8 prestressed concrete beam specimens were conducted, the failure modes of specimens and the characteristics of t...
2020, 50(6): 45-50,104.
doi: 10.13204/j.gyjz202006008
Abstract:
In order to simplify the joint construction measures of the two-way truss reinforced concrete composite slab and improve the mechanical properties of the joint, three kinds of reinforced close joint were proposed:strengthened additional reinforcement...
In order to simplify the joint construction measures of the two-way truss reinforced concrete composite slab and improve the mechanical properties of the joint, three kinds of reinforced close joint were proposed:strengthened additional reinforcement...
2020, 50(6): 51-57.
doi: 10.13204/j.gyjz202006009
Abstract:
To study the shear and bending properties of the composite reinforced concrete slabs with reinforcement trusses under concentrated forces of small shear-span ratios, shear and bending tests on one composite reinforced concrete double-layer slab with ...
To study the shear and bending properties of the composite reinforced concrete slabs with reinforcement trusses under concentrated forces of small shear-span ratios, shear and bending tests on one composite reinforced concrete double-layer slab with ...
2020, 50(6): 58-66.
doi: 10.13204/j.gyjz202006010
Abstract:
Through the static loading test of 8 prestressed-concrete composite slabs with concrete-filled tubular steel trusses connected by close joints, the flexural behavior of the composite slabs in vertical direction of being prestressed was studied under ...
Through the static loading test of 8 prestressed-concrete composite slabs with concrete-filled tubular steel trusses connected by close joints, the flexural behavior of the composite slabs in vertical direction of being prestressed was studied under ...
2020, 50(6): 67-70.
doi: 10.13204/j.gyjz202006011
Abstract:
Based on the quasi-static test study of interion beam-column joints for prefabricated concrete frame cast by steel fiber concrete in site and interior beam-column joints cast by ordinary concrete in situ under the same condition, the failure characte...
Based on the quasi-static test study of interion beam-column joints for prefabricated concrete frame cast by steel fiber concrete in site and interior beam-column joints cast by ordinary concrete in situ under the same condition, the failure characte...
2020, 50(6): 71-78,110.
doi: 10.13204/j.gyjz202006012
Abstract:
In order to avoid the resonance damage of the friction pendulum isolation structure and the upper structure, a multi-stage frequency conversion friction pendulum isolation bearing with a variable curvature and friction coefficient arc sliding surface...
In order to avoid the resonance damage of the friction pendulum isolation structure and the upper structure, a multi-stage frequency conversion friction pendulum isolation bearing with a variable curvature and friction coefficient arc sliding surface...
2020, 50(6): 79-84.
doi: 10.13204/j.gyjz202006013
Abstract:
Concrete filled steel tube frame-core wall-outrigger truss structure system is adopted for buildings with asymmetric vertical setbacks. The seismic performance and damage distribution of the structures were analyzed by using elastic-plastic analysis ...
Concrete filled steel tube frame-core wall-outrigger truss structure system is adopted for buildings with asymmetric vertical setbacks. The seismic performance and damage distribution of the structures were analyzed by using elastic-plastic analysis ...
2020, 50(6): 85-92.
doi: 10.13204/j.gyjz202006014
Abstract:
Based on finite element method with concrete damaged plasticity model, a comprehensive study was carried out to investigate the effects of steel pipe diameter d, wall thickness of pipe t, diameter of pile D, length of pile H, and water cement ratio o...
Based on finite element method with concrete damaged plasticity model, a comprehensive study was carried out to investigate the effects of steel pipe diameter d, wall thickness of pipe t, diameter of pile D, length of pile H, and water cement ratio o...
2020, 50(6): 93-97,174.
doi: 10.13204/j.gyjz202006015
Abstract:
Considering the actual excavation conditions of the water-level fluctuation zone in the Three Gorges reservoir area, the effects of different pore water pressure cycles and unloading rates of confining pressure on the mechanical properties of sandsto...
Considering the actual excavation conditions of the water-level fluctuation zone in the Three Gorges reservoir area, the effects of different pore water pressure cycles and unloading rates of confining pressure on the mechanical properties of sandsto...
2020, 50(6): 98-104.
doi: 10.13204/j.gyjz202006016
Abstract:
Stratum subsidence due to dewatering will cause damage to buried beams such as municipal pipelines, underground pipe galleries and subway tunnels. With the increase of time and dewatering, the damage of being gradually aggravated will affect the safe...
Stratum subsidence due to dewatering will cause damage to buried beams such as municipal pipelines, underground pipe galleries and subway tunnels. With the increase of time and dewatering, the damage of being gradually aggravated will affect the safe...
2020, 50(6): 105-110.
doi: 10.13204/j.gyjz202006017
Abstract:
In order to study the anchorage mechanism of pressure cables more accurately, considering the anchor cable tunnel to be bent, based on the basic solution of Mindlin and the stress analysis of the plane stress state, the theoretical solution of shear ...
In order to study the anchorage mechanism of pressure cables more accurately, considering the anchor cable tunnel to be bent, based on the basic solution of Mindlin and the stress analysis of the plane stress state, the theoretical solution of shear ...
2020, 50(6): 111-116,38.
doi: 10.13204/j.gyjz202006018
Abstract:
The early-age mechanical properties of ultra-high pumping self-compacting concrete (SCC) have an extremely important impact on the formulation of construction scheme of ultra-high buildings, and are the basic key problems of construction mechanics of...
The early-age mechanical properties of ultra-high pumping self-compacting concrete (SCC) have an extremely important impact on the formulation of construction scheme of ultra-high buildings, and are the basic key problems of construction mechanics of...
2020, 50(6): 117-122.
doi: 10.13204/j.gyjz202006019
Abstract:
The variations of the temperature, humidity, salt frog and acid rain in Shenzhen area and their effects on durability of concrete structures were described. According to the survey and field test data of building durability in Shenzhen in the past 20...
The variations of the temperature, humidity, salt frog and acid rain in Shenzhen area and their effects on durability of concrete structures were described. According to the survey and field test data of building durability in Shenzhen in the past 20...
2020, 50(6): 123-127,134.
doi: 10.13204/j.gyjz202006020
Abstract:
Precast U-griders can effectively reduce the height of the line and traffic noise, and can be convenient to maintain. But for U-griders and other open thin-walled members, the beam will occur torsional deformation, which has the effect of bending and...
Precast U-griders can effectively reduce the height of the line and traffic noise, and can be convenient to maintain. But for U-griders and other open thin-walled members, the beam will occur torsional deformation, which has the effect of bending and...
2020, 50(6): 128-134.
doi: 10.13204/j.gyjz202006021
Abstract:
In order to investigate the mechanical properties of steel plates with round holes under repeated tensile and compressive loads, the numerical analysis for steel plates with round holes under four patterns of repeated tensile and compressive loads we...
In order to investigate the mechanical properties of steel plates with round holes under repeated tensile and compressive loads, the numerical analysis for steel plates with round holes under four patterns of repeated tensile and compressive loads we...
2020, 50(6): 135-143.
doi: 10.13204/j.gyjz202006022
Abstract:
Five high-strength steel T-stub connection specimens were designed, and the effect of welding seams of weld access hole liners on the fracture behaviors of beam-column joints was studied by loading and unloading cycle loading tests and finite element...
Five high-strength steel T-stub connection specimens were designed, and the effect of welding seams of weld access hole liners on the fracture behaviors of beam-column joints was studied by loading and unloading cycle loading tests and finite element...
2020, 50(6): 144-149.
doi: 10.13204/j.gyjz202006023
Abstract:
To exploring axial bearing capacity of circular hollow section steel K-joints strengthened by collar plates, the axial loading tests of two groups, totally four circular hollow section steel K-joints were conducted, the deformation and failure modes ...
To exploring axial bearing capacity of circular hollow section steel K-joints strengthened by collar plates, the axial loading tests of two groups, totally four circular hollow section steel K-joints were conducted, the deformation and failure modes ...
2020, 50(6): 150-155.
doi: 10.13204/j.gyjz202006024
Abstract:
Taking a substation framework with lightning rods in a 500 kV substation as an example, the full-scale static load test of the intersecting joint based on the original was designed and performed. The bearing capacity and strain distribution character...
Taking a substation framework with lightning rods in a 500 kV substation as an example, the full-scale static load test of the intersecting joint based on the original was designed and performed. The bearing capacity and strain distribution character...
2020, 50(6): 156-160,188.
doi: 10.13204/j.gyjz202006025
Abstract:
Four full-scale special-shaped composite steel concrete columns were tested under quasi-static loading, and the hysteretic curve, bearing capacity, displacement and ductility, stiffness degeneration and energy dissipation were analyzed. The results s...
Four full-scale special-shaped composite steel concrete columns were tested under quasi-static loading, and the hysteretic curve, bearing capacity, displacement and ductility, stiffness degeneration and energy dissipation were analyzed. The results s...
2020, 50(6): 161-166,149.
doi: 10.13204/j.gyjz202006026
Abstract:
In order to obtain the practical calculation formula of resistance to lateral stiffness of a new type lightweight composite steel frame wall filled with foam concrete, the monotonic loading test was conducted on DD-1, DD-1 (D-300) and DD-2 (D-400) re...
In order to obtain the practical calculation formula of resistance to lateral stiffness of a new type lightweight composite steel frame wall filled with foam concrete, the monotonic loading test was conducted on DD-1, DD-1 (D-300) and DD-2 (D-400) re...
2020, 50(6): 167-174.
doi: 10.13204/j.gyjz202006027
Abstract:
In order to investigated the influence of volume content of steel fibers and longitudinal reinforcement ratio on the bending behaviour of recycled aggregate concrete beams mixed with steel Fibers reinforced with BFRP bars, the bending performance tes...
In order to investigated the influence of volume content of steel fibers and longitudinal reinforcement ratio on the bending behaviour of recycled aggregate concrete beams mixed with steel Fibers reinforced with BFRP bars, the bending performance tes...
2020, 50(6): 175-182.
doi: 10.13204/j.gyjz202006028
Abstract:
The prestress loss of concrete structure reinforced with prestressed carbon fiber reinforced plastics (CFRP) is an important factor affecting the reinforcing effect. In order to study the prestress loss law of large-sized concrete column strengthened...
The prestress loss of concrete structure reinforced with prestressed carbon fiber reinforced plastics (CFRP) is an important factor affecting the reinforcing effect. In order to study the prestress loss law of large-sized concrete column strengthened...
2020, 50(6): 183-188.
doi: 10.13204/j.gyjz202006029
Abstract:
In order to study the influence of carbon fiber reinforced ploymer (CFRP) sheets on the mechanical properties of concrete-filled glass fiber reinforced ploymer (GFRP) short columns strengthened with CFRP sheets, the experimental research on the desig...
In order to study the influence of carbon fiber reinforced ploymer (CFRP) sheets on the mechanical properties of concrete-filled glass fiber reinforced ploymer (GFRP) short columns strengthened with CFRP sheets, the experimental research on the desig...
2020, 50(6): 189-195.
doi: 10.13204/j.gyjz202006030
Abstract:
As a country with numerous heritages, Italy has a well-established management system for protected heritage areas. Based on the analysis of the value of Ivrea's industrial heritage and the unscrambling of adaptive protection strategies, the paper exp...
As a country with numerous heritages, Italy has a well-established management system for protected heritage areas. Based on the analysis of the value of Ivrea's industrial heritage and the unscrambling of adaptive protection strategies, the paper exp...
