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2009 Vol. 39, No. 12
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2009, 39(12): 1-4.
doi: 10.13204/j.gyjz200912001
Abstract:
Modern prestressing technique has been applied to many large-scale complex concrete structures.Scientific analysis measures should be adopted to evaluate the nonlinear bearing capacity of the whole structure.This paper focuses on some relevant key is...
Modern prestressing technique has been applied to many large-scale complex concrete structures.Scientific analysis measures should be adopted to evaluate the nonlinear bearing capacity of the whole structure.This paper focuses on some relevant key is...
2009, 39(12): 5-9.
doi: 10.13204/j.gyjz200912002
Abstract:
Three PC beams with draped tendons and one RC beam were tested and the primary variable is the longitudinal reinforcement ratio .All the beams had a shear span to depth ratio,a/h_0,of 1.8.Several results were obtained: beams with both small a/h_0 and...
Three PC beams with draped tendons and one RC beam were tested and the primary variable is the longitudinal reinforcement ratio .All the beams had a shear span to depth ratio,a/h_0,of 1.8.Several results were obtained: beams with both small a/h_0 and...
2009, 39(12): 10-13.
doi: 10.13204/j.gyjz200912003
Abstract:
Three PC beams with draped tendons and one RC beam were tested and the primary variable is the angle of the tendons,.All the beams had a shear span to depth ratio,a/h_0,of 2.2.Several results were obtained: beams with both small a/h_0 and normal amou...
Three PC beams with draped tendons and one RC beam were tested and the primary variable is the angle of the tendons,.All the beams had a shear span to depth ratio,a/h_0,of 2.2.Several results were obtained: beams with both small a/h_0 and normal amou...
2009, 39(12): 14-17.
doi: 10.13204/j.gyjz200912004
Abstract:
This paper pointed out the shortage of equivalent frame method to design unbonded prestressed concrete flat-floors.By analyzing the moment distribution of such a structure,it was indicated that the design of the serviceability limit state should be b...
This paper pointed out the shortage of equivalent frame method to design unbonded prestressed concrete flat-floors.By analyzing the moment distribution of such a structure,it was indicated that the design of the serviceability limit state should be b...
2009, 39(12): 18-20.
doi: 10.13204/j.gyjz200912005
Abstract:
According to current code for design of concrete structures,the formula of crack width checking on eccentrically tensioned prestressed members was deduced.Meanwhile,another form of the formula of crack width checking was also deduced based on two-sta...
According to current code for design of concrete structures,the formula of crack width checking on eccentrically tensioned prestressed members was deduced.Meanwhile,another form of the formula of crack width checking was also deduced based on two-sta...
2009, 39(12): 21-25.
doi: 10.13204/j.gyjz200912006
Abstract:
Experiments on prestressing time-dependent loss of C60 high-performance concrete(HPC) are carried out.By analyzing experimental results of shrinkage,creep,deflection and effective prestress of three prestressed concrete beams under natural environmen...
Experiments on prestressing time-dependent loss of C60 high-performance concrete(HPC) are carried out.By analyzing experimental results of shrinkage,creep,deflection and effective prestress of three prestressed concrete beams under natural environmen...
2009, 39(12): 26-28.
doi: 10.13204/j.gyjz200912007
Abstract:
In order to find out how the high-performance concrete(HPC) used in Sutong continuous rigid-frame bridge affects the long-term behavior of bridge,such as long-term deformation,section stress and prestress loss,experimental study on the long-term beha...
In order to find out how the high-performance concrete(HPC) used in Sutong continuous rigid-frame bridge affects the long-term behavior of bridge,such as long-term deformation,section stress and prestress loss,experimental study on the long-term beha...
2009, 39(12): 29-31.
doi: 10.13204/j.gyjz200912008
Abstract:
For analysis of serviceability behavior of reinforced concrete beams strengthened with external tendons,external prestressing effects can be modeled as equivalent loads varying with imposed external loads.Formulas of stress increments of external ten...
For analysis of serviceability behavior of reinforced concrete beams strengthened with external tendons,external prestressing effects can be modeled as equivalent loads varying with imposed external loads.Formulas of stress increments of external ten...
2009, 39(12): 32-35.
doi: 10.13204/j.gyjz200912009
Abstract:
With a view to different height of compression region and different prestress reinforcement index,6 reinforced concrete continuous beams strengthened with external prestressed tendons are investigated,including midspan deflection,stress increment of ...
With a view to different height of compression region and different prestress reinforcement index,6 reinforced concrete continuous beams strengthened with external prestressed tendons are investigated,including midspan deflection,stress increment of ...
2009, 39(12): 36-38.
doi: 10.13204/j.gyjz200912010
Abstract:
It has been analyzed the creative clusters of Shanghai which are reformed by industrial heritage from rent,trade composition and opening mode.It is pointed out the faced questions about the preservation and rehabilitation of Shanghai industrial herit...
It has been analyzed the creative clusters of Shanghai which are reformed by industrial heritage from rent,trade composition and opening mode.It is pointed out the faced questions about the preservation and rehabilitation of Shanghai industrial herit...
2009, 39(12): 39-41.
doi: 10.13204/j.gyjz200912011
Abstract:
Roof is one of the main structures of a building,and it plays an important role in improving the degree of indoor thermal comfort so as to reduce the using of air-conditioner.Through a contrastive study on the water-storing green roof and the common ...
Roof is one of the main structures of a building,and it plays an important role in improving the degree of indoor thermal comfort so as to reduce the using of air-conditioner.Through a contrastive study on the water-storing green roof and the common ...
2009, 39(12): 42-44,38.
doi: 10.13204/j.gyjz200912012
Abstract:
Reinforced concrete coupling beam is an important member of a major lateral load-resisting structure-coupled shear wall or core wall.Under seismic actions,local failure of coupling beams may lead to a more serious global failure of the whole lateral ...
Reinforced concrete coupling beam is an important member of a major lateral load-resisting structure-coupled shear wall or core wall.Under seismic actions,local failure of coupling beams may lead to a more serious global failure of the whole lateral ...
2009, 39(12): 45-50.
doi: 10.13204/j.gyjz200912013
Abstract:
In this paper,two groups of experiments on multi-ribbed composite walls which include oblique section shear bearing capacity tests and normal section bending capacity tests are represented.Based on the results of the experiments,the composite wall's ...
In this paper,two groups of experiments on multi-ribbed composite walls which include oblique section shear bearing capacity tests and normal section bending capacity tests are represented.Based on the results of the experiments,the composite wall's ...
2009, 39(12): 51-56,73.
doi: 10.13204/j.gyjz200912014
Abstract:
In new steel-concrete combinatory concealed-beam floor structure,the changes of the parameters of the steel concealed-beam are important factors,which impact the performance of the new combinatory concealed-beam floor structure.In order to investigat...
In new steel-concrete combinatory concealed-beam floor structure,the changes of the parameters of the steel concealed-beam are important factors,which impact the performance of the new combinatory concealed-beam floor structure.In order to investigat...
2009, 39(12): 57-60.
doi: 10.13204/j.gyjz200912015
Abstract:
A stress analysis of the interior anchorage zones of post-tensioned concrete structures(IAZPTCS) is conducted using FEM.According to the analytical results,it is found that there are some limitations of the present design method(strut-and-tie model,S...
A stress analysis of the interior anchorage zones of post-tensioned concrete structures(IAZPTCS) is conducted using FEM.According to the analytical results,it is found that there are some limitations of the present design method(strut-and-tie model,S...
2009, 39(12): 61-64.
doi: 10.13204/j.gyjz200912016
Abstract:
Based on the bonding anchors which used in the first CFRP cable-stayed bridge and obtained the national patent,a main research was given to the bonding anchors composed of direct and inner cone type of tube.The radial stress of CFRP tendons is select...
Based on the bonding anchors which used in the first CFRP cable-stayed bridge and obtained the national patent,a main research was given to the bonding anchors composed of direct and inner cone type of tube.The radial stress of CFRP tendons is select...
2009, 39(12): 65-69,129.
doi: 10.13204/j.gyjz200912017
Abstract:
The determination of critical slip surfaces within soil slope stability analysis based on limit equilibrium method is a complicated optimization problem.However,there may exist such disadvantages as more related parameters,difficult to be determined ...
The determination of critical slip surfaces within soil slope stability analysis based on limit equilibrium method is a complicated optimization problem.However,there may exist such disadvantages as more related parameters,difficult to be determined ...
2009, 39(12): 70-73.
doi: 10.13204/j.gyjz200912018
Abstract:
Settlement rate method is often used to decide surcharge removal time for embankment on soft ground.Post-construction settlements controlled by empirical settlement rate standards used in some highways can not be obtained.A equation that describes th...
Settlement rate method is often used to decide surcharge removal time for embankment on soft ground.Post-construction settlements controlled by empirical settlement rate standards used in some highways can not be obtained.A equation that describes th...
2009, 39(12): 74-79.
doi: 10.13204/j.gyjz200912019
Abstract:
The value of width parameter i of surface settlement trough induced by shield tunnel is related to tunnel radius R,tunnel axis depth h,and soil condition(internal friction angle of soil).The analyses of 22 actual values from 13 constructional cases s...
The value of width parameter i of surface settlement trough induced by shield tunnel is related to tunnel radius R,tunnel axis depth h,and soil condition(internal friction angle of soil).The analyses of 22 actual values from 13 constructional cases s...
2009, 39(12): 80-83.
doi: 10.13204/j.gyjz200912020
Abstract:
A zigzag line tunnel in Tianhe Passenger Station of Guangzhou Subway is constructed by whole-section extra-long horizontal freezing method.One integrated model experiment system is established based on similar theory.Frost heaving and thawing settlem...
A zigzag line tunnel in Tianhe Passenger Station of Guangzhou Subway is constructed by whole-section extra-long horizontal freezing method.One integrated model experiment system is established based on similar theory.Frost heaving and thawing settlem...
2009, 39(12): 84-89.
doi: 10.13204/j.gyjz200912021
Abstract:
From 1998 to 2008 one-way cable-supported structures(CSS),two-way CSS and spatial CSS have been developed rapidly.In recent year a new kind of structure,which would be formed when the cable through tube was tensioned,was paid attention.It is called c...
From 1998 to 2008 one-way cable-supported structures(CSS),two-way CSS and spatial CSS have been developed rapidly.In recent year a new kind of structure,which would be formed when the cable through tube was tensioned,was paid attention.It is called c...
2009, 39(12): 90-94.
doi: 10.13204/j.gyjz200912022
Abstract:
A finite beam element model is established to study out-of-plane elastic buckling behaviors and elasto-plastic stability behaviors of pin-ended circular steel arch with circular sections.Firstly,elastic buckling of arches subject to hydrostatic press...
A finite beam element model is established to study out-of-plane elastic buckling behaviors and elasto-plastic stability behaviors of pin-ended circular steel arch with circular sections.Firstly,elastic buckling of arches subject to hydrostatic press...
2009, 39(12): 95-97.
doi: 10.13204/j.gyjz200912023
Abstract:
Planar BSS with top chords of H-section can be made conveniently,and its joints can be connected easily,but the system is sensitive to the imperfection out of plane because the member of H-section has small stiffness out of plane.The system will be u...
Planar BSS with top chords of H-section can be made conveniently,and its joints can be connected easily,but the system is sensitive to the imperfection out of plane because the member of H-section has small stiffness out of plane.The system will be u...
2009, 39(12): 98-101.
doi: 10.13204/j.gyjz200912024
Abstract:
Through the on-site testing of the concrete pressure in a project of Baosteel, the curves of change in the pressure with the height in steel tube are analyzed.The pumping pressure is a kind of pulse pressure which changes from top to bottom along a p...
Through the on-site testing of the concrete pressure in a project of Baosteel, the curves of change in the pressure with the height in steel tube are analyzed.The pumping pressure is a kind of pulse pressure which changes from top to bottom along a p...
2009, 39(12): 102-104.
doi: 10.13204/j.gyjz200912025
Abstract:
Anti-sliding coefficient is an important index which has important significance for ensuring connection reliability of steel structure.However,many factors can effect on it.Therefore,friction-typed high-strength bolt connection anti-sliding coefficie...
Anti-sliding coefficient is an important index which has important significance for ensuring connection reliability of steel structure.However,many factors can effect on it.Therefore,friction-typed high-strength bolt connection anti-sliding coefficie...
2009, 39(12): 105-109.
doi: 10.13204/j.gyjz200912026
Abstract:
This paper introduces the integrated technique of cutting off columns and jacking of building or structure,in which several underpinning jacking platform structures and their comparative analysis is described to show that the steel-concrete composite...
This paper introduces the integrated technique of cutting off columns and jacking of building or structure,in which several underpinning jacking platform structures and their comparative analysis is described to show that the steel-concrete composite...
2009, 39(12): 110-114.
doi: 10.13204/j.gyjz200912027
Abstract:
There is no special design method and code for the design of the holistic lifting-up for the conservation of the masonry ancient construction.The design method and process of the integral lift-up for the conservation of the Jade Emperor Pavilion of K...
There is no special design method and code for the design of the holistic lifting-up for the conservation of the masonry ancient construction.The design method and process of the integral lift-up for the conservation of the Jade Emperor Pavilion of K...
2009, 39(12): 115-117.
doi: 10.13204/j.gyjz200912028
Abstract:
Based on a real life example,this article analyses all kinds of schemes of adjusting large slanting steel column of a building.It introduces a method to resolving this problem by uprising the column with a jack.The details on how to apply this method...
Based on a real life example,this article analyses all kinds of schemes of adjusting large slanting steel column of a building.It introduces a method to resolving this problem by uprising the column with a jack.The details on how to apply this method...
2009, 39(12): 118-122.
doi: 10.13204/j.gyjz200912029
Abstract:
In this paper,the shear behavior of concrete beam reinforced with engineered cementitious composites(ECC) and FRP grid is studied for the first time and is compared with the behavior of a beam reinforced with steel and CFRP sheet.The results from the...
In this paper,the shear behavior of concrete beam reinforced with engineered cementitious composites(ECC) and FRP grid is studied for the first time and is compared with the behavior of a beam reinforced with steel and CFRP sheet.The results from the...
2009, 39(12): 123-126.
doi: 10.13204/j.gyjz200912030
Abstract:
Although the buildings in a petrochemical plant will not possess the main investment,they have influenced on the feeling of users and can protect the core equipments and operators effectively.This article aims at discussing the process and site contr...
Although the buildings in a petrochemical plant will not possess the main investment,they have influenced on the feeling of users and can protect the core equipments and operators effectively.This article aims at discussing the process and site contr...
2009, 39(12): 127-129.
doi: 10.13204/j.gyjz200912031
Abstract:
The rapid development of the economy brings tremendous pressure to the environment.How to use the limited resources rationally and minimize the impact on the environment are the problems that must be concerned the whole human society must be concerne...
The rapid development of the economy brings tremendous pressure to the environment.How to use the limited resources rationally and minimize the impact on the environment are the problems that must be concerned the whole human society must be concerne...
2009, 39(12): 130-132.
doi: 10.13204/j.gyjz200912032
Abstract:
The development and research on the energy-saving measures of building envelope are of great importance to the construction of resource-conserving society and sustainable development strategy in China.As a new and environment-friendly form of buildin...
The development and research on the energy-saving measures of building envelope are of great importance to the construction of resource-conserving society and sustainable development strategy in China.As a new and environment-friendly form of buildin...
