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2008 Vol. 38, No. 3
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2008, 38(3): 1-4.
doi: 10.13204/j.gyjz200803001
Abstract:
A study was conducted to investigate the composite action in steel2concrete composite beams subjected to torsion. Tests and analysis showed that the composite action definitely existed under torsion. It would underestimate the torsional strength of c...
A study was conducted to investigate the composite action in steel2concrete composite beams subjected to torsion. Tests and analysis showed that the composite action definitely existed under torsion. It would underestimate the torsional strength of c...
2008, 38(3): 5-8.
doi: 10.13204/j.gyjz200803002
Abstract:
Research is conducted on the influence of the in-plane stiffness of stee-l concrete composite floor slab to the structure analyses of high-rise building. A simplified model is suggested considering the in-plane deformation of stee-l concrete composit...
Research is conducted on the influence of the in-plane stiffness of stee-l concrete composite floor slab to the structure analyses of high-rise building. A simplified model is suggested considering the in-plane deformation of stee-l concrete composit...
2008, 38(3): 9-11,4.
doi: 10.13204/j.gyjz200803003
Abstract:
The concrete-filled square steel tube column under axial loads is studied based on the unified strength theory. The ultimate load calculation formula for the concrete-filled square steel tubes column is derived. Comparisons are made between the simpl...
The concrete-filled square steel tube column under axial loads is studied based on the unified strength theory. The ultimate load calculation formula for the concrete-filled square steel tubes column is derived. Comparisons are made between the simpl...
2008, 38(3): 12-15.
doi: 10.13204/j.gyjz200803004
Abstract:
The formulae for calculating bearing capacity of square concrete-filled steel tube (CFT) stub column with binding bars subjected to axial load are deduced based on the constitutive relationship of square concrete-filled steel tube, which are followed...
The formulae for calculating bearing capacity of square concrete-filled steel tube (CFT) stub column with binding bars subjected to axial load are deduced based on the constitutive relationship of square concrete-filled steel tube, which are followed...
2008, 38(3): 16-19.
doi: 10.13204/j.gyjz200803005
Abstract:
As compared to the normal SRC structures, concrete filled steel tube (CFST) structures and steel structures, the research on the mechanics under axial force of column reinforced by inner circular steel tube is in initial stage, not only in normal tem...
As compared to the normal SRC structures, concrete filled steel tube (CFST) structures and steel structures, the research on the mechanics under axial force of column reinforced by inner circular steel tube is in initial stage, not only in normal tem...
2008, 38(3): 20-22,8.
doi: 10.13204/j.gyjz200803006
Abstract:
The joint design of heavy-load is very important to prevent the collapse of a structure. Repeat low cycle loading tests are carried out on a new type of joint of heavy-load columns. The evaluations are made for the earthquake-resistant behavior of th...
The joint design of heavy-load is very important to prevent the collapse of a structure. Repeat low cycle loading tests are carried out on a new type of joint of heavy-load columns. The evaluations are made for the earthquake-resistant behavior of th...
2008, 38(3): 23-26.
doi: 10.13204/j.gyjz200803007
Abstract:
A new type of through high strength bolts-end plate connection for concrete filled square steel tube column and steel beams is proposed. A total of 3 pseudo-static experiments has been conducted in which the horizontal cyclic load is applied on the t...
A new type of through high strength bolts-end plate connection for concrete filled square steel tube column and steel beams is proposed. A total of 3 pseudo-static experiments has been conducted in which the horizontal cyclic load is applied on the t...
2008, 38(3): 27-30.
doi: 10.13204/j.gyjz200803008
Abstract:
Based on theory of fiber model method, a nonlinear analysis of computer program is developed. As compared with experimental data of corresponding documents, the results agree well with each other. Then the influences of strength of concrete, stirrup ...
Based on theory of fiber model method, a nonlinear analysis of computer program is developed. As compared with experimental data of corresponding documents, the results agree well with each other. Then the influences of strength of concrete, stirrup ...
2008, 38(3): 31-34.
doi: 10.13204/j.gyjz200803009
Abstract:
Tests on three non-un-i thickness walled rectangular CFT(concrete-filled steel tube) members subjected to pure bending are carried out. The mechanical behavior of the member is studied. The experimental results show that non-un-i thickness walled rec...
Tests on three non-un-i thickness walled rectangular CFT(concrete-filled steel tube) members subjected to pure bending are carried out. The mechanical behavior of the member is studied. The experimental results show that non-un-i thickness walled rec...
2008, 38(3): 35-38.
doi: 10.13204/j.gyjz200803010
Abstract:
It is investigated the sustainable use of the old residential buildings built in 1970s and 1980s in Handan, after introducing and learning from the theoretical researches and practical experiences both at home and abroad, this paper expounds the meth...
It is investigated the sustainable use of the old residential buildings built in 1970s and 1980s in Handan, after introducing and learning from the theoretical researches and practical experiences both at home and abroad, this paper expounds the meth...
2008, 38(3): 39-41.
doi: 10.13204/j.gyjz200803011
Abstract:
The resource circulation housing is a new kind of the sustainable housing, it can embody the request of building energy-saving much more. From the angle of entire life cycle, this paper discusses the energy-saving construction main point and measures...
The resource circulation housing is a new kind of the sustainable housing, it can embody the request of building energy-saving much more. From the angle of entire life cycle, this paper discusses the energy-saving construction main point and measures...
2008, 38(3): 42-44,89.
doi: 10.13204/j.gyjz200803012
Abstract:
Using designer. s simulation toolkit DeST-h developed by Tsinghua University, it is analysed the building energy consumption of a typical residential building according to heat transfer coefficient of roof in Ningbo, and is measured the changes in th...
Using designer. s simulation toolkit DeST-h developed by Tsinghua University, it is analysed the building energy consumption of a typical residential building according to heat transfer coefficient of roof in Ningbo, and is measured the changes in th...
2008, 38(3): 45-47,34.
doi: 10.13204/j.gyjz200803013
Abstract:
Recently, the global countries have an agreement on the building energy conservation; every country is taking measures to carry out the energy conservation in building actively. The outer wall surface is an emphasis for energy saving in construction ...
Recently, the global countries have an agreement on the building energy conservation; every country is taking measures to carry out the energy conservation in building actively. The outer wall surface is an emphasis for energy saving in construction ...
2008, 38(3): 48-51,30.
doi: 10.13204/j.gyjz200803014
Abstract:
Based on field investigation on traditional earth wal-l timber frame structure in loess areas and statistical analysis of previous earthquake damage characteristics, the existing of it is proved to be reasonable regionally. The congenital inadequacy ...
Based on field investigation on traditional earth wal-l timber frame structure in loess areas and statistical analysis of previous earthquake damage characteristics, the existing of it is proved to be reasonable regionally. The congenital inadequacy ...
ANALYSIS OF UNBONDED PRESTRESSED TECHNIQUE IN CONTROLLING TEMPERATURE STRESS OF SUPER-LONG STRUCTURE
2008, 38(3): 52-55,83.
doi: 10.13204/j.gyjz200803015
Abstract:
Based a typical super-long structure, the internal force and deformation of the structure under the function of linear unbonded prestressed tendons are analyzed by ANSYS, and the effect of the distributed unbonded prestress on controlling super-long ...
Based a typical super-long structure, the internal force and deformation of the structure under the function of linear unbonded prestressed tendons are analyzed by ANSYS, and the effect of the distributed unbonded prestress on controlling super-long ...
2008, 38(3): 56-58.
doi: 10.13204/j.gyjz200803016
Abstract:
A comparative experiment on the externally prestressed simple beams and frame beams is conducted. Through this experiment, the theory is proved that shearing force of frame columns is enhanced and effective prestressing of horizontal members is decre...
A comparative experiment on the externally prestressed simple beams and frame beams is conducted. Through this experiment, the theory is proved that shearing force of frame columns is enhanced and effective prestressing of horizontal members is decre...
2008, 38(3): 59-63.
doi: 10.13204/j.gyjz200803017
Abstract:
Magnetorheological (MR) damper is one of the most excellent new devices for sem-i active control. The research on design of MR dampers should be improved to accelerate the application of MR dampers. In this paper, after a review of the features and m...
Magnetorheological (MR) damper is one of the most excellent new devices for sem-i active control. The research on design of MR dampers should be improved to accelerate the application of MR dampers. In this paper, after a review of the features and m...
2008, 38(3): 64-67.
doi: 10.13204/j.gyjz200803018
Abstract:
A kind of lateral and vertical compound seismic isolation system is proposed, and the model of test is also designed. The test is conducted in dynamic character, verifies the rigidity and damping properties of the model, it proved the theory of desig...
A kind of lateral and vertical compound seismic isolation system is proposed, and the model of test is also designed. The test is conducted in dynamic character, verifies the rigidity and damping properties of the model, it proved the theory of desig...
2008, 38(3): 68-71114.
doi: 10.13204/j.gyjz200803019
Abstract:
Soil structure has significant influence on its engineering properties, the formation of soft soil structure in Ningbo area is analyzed from the internal cause and external cause. To analyze the soil structural effects, by means of onedimensional con...
Soil structure has significant influence on its engineering properties, the formation of soft soil structure in Ningbo area is analyzed from the internal cause and external cause. To analyze the soil structural effects, by means of onedimensional con...
2008, 38(3): 72-74105.
doi: 10.13204/j.gyjz200803020
Abstract:
To study reinforcement effect and bearing characteristics of long-short cemen-t soil piles composite foundation in deep soft soils, the loading test in situ on the bearing characteristics of long-short cemen-t soil piles composite ground in deep soft...
To study reinforcement effect and bearing characteristics of long-short cemen-t soil piles composite foundation in deep soft soils, the loading test in situ on the bearing characteristics of long-short cemen-t soil piles composite ground in deep soft...
2008, 38(3): 75-79.
doi: 10.13204/j.gyjz200803021
Abstract:
Based on Biot consolidation theory and adopting Duncan-Chang model, a lot of nonlinear finite element calculations have been performed on a calculating case. The different sensitivities of eight parameters of Duncan-Chang model have been analyzed. At...
Based on Biot consolidation theory and adopting Duncan-Chang model, a lot of nonlinear finite element calculations have been performed on a calculating case. The different sensitivities of eight parameters of Duncan-Chang model have been analyzed. At...
2008, 38(3): 80-83.
doi: 10.13204/j.gyjz200803022
Abstract:
By the splitting tensile strength experiments on the specimens with the dimension of 100mm @ 100mm @ 100mm, it is explored that the influence of the number of freeze-thaw cycle and steel fiber volume fraction upon the splitting tensile behavior of th...
By the splitting tensile strength experiments on the specimens with the dimension of 100mm @ 100mm @ 100mm, it is explored that the influence of the number of freeze-thaw cycle and steel fiber volume fraction upon the splitting tensile behavior of th...
2008, 38(3): 84-89.
doi: 10.13204/j.gyjz200803023
Abstract:
The behavior of FRP-confined concrete square columns under uniaxial compression is analyzed by 3-D nonlinear finite element method. Based on the analysis result, the columns section stress distribution and mechanism are discussed and pointed out that...
The behavior of FRP-confined concrete square columns under uniaxial compression is analyzed by 3-D nonlinear finite element method. Based on the analysis result, the columns section stress distribution and mechanism are discussed and pointed out that...
2008, 38(3): 90-93.
doi: 10.13204/j.gyjz200803024
Abstract:
The damage processes of an ordinary concrete and a high strength concrete, attacked by solutions of 10% Na2 SO4 (in mass, the same below), 10%MgSO4 and Qinghai salt lake solution in cycles of drying-immersion are studied. The results show that the da...
The damage processes of an ordinary concrete and a high strength concrete, attacked by solutions of 10% Na2 SO4 (in mass, the same below), 10%MgSO4 and Qinghai salt lake solution in cycles of drying-immersion are studied. The results show that the da...
2008, 38(3): 94-96.
doi: 10.13204/j.gyjz200803025
Abstract:
Based on plenty of experimental studies, the effect of curing period of specimens, volume content of polypropylene fiber and cement content on compressive strength of cement stabilized macadam is analyzed. The study results indicate that the addition...
Based on plenty of experimental studies, the effect of curing period of specimens, volume content of polypropylene fiber and cement content on compressive strength of cement stabilized macadam is analyzed. The study results indicate that the addition...
2008, 38(3): 97-100.
doi: 10.13204/j.gyjz200803026
Abstract:
There are often quality problems, such as low strength of high-grade concrete, cracks of beams and slabs etc in the production and use of ready-mixed concrete, which can bring hidden dangers to the quality of a project. It is analyzed systematically ...
There are often quality problems, such as low strength of high-grade concrete, cracks of beams and slabs etc in the production and use of ready-mixed concrete, which can bring hidden dangers to the quality of a project. It is analyzed systematically ...
2008, 38(3): 101-105.
doi: 10.13204/j.gyjz200803027
Abstract:
The chance and challenge of earth building development in current ecology civilization time are discussed and research state and earthquake damage characteristics of earth buildings are indicated in this paper. The trend and requirements for developi...
The chance and challenge of earth building development in current ecology civilization time are discussed and research state and earthquake damage characteristics of earth buildings are indicated in this paper. The trend and requirements for developi...
2008, 38(3): 106-108122.
doi: 10.13204/j.gyjz200803028
Abstract:
The CFRP strengthening has the advantages of low density, high strength, facility, endurance, etc, so it has been widely applied to strengthen reinforced concrete structures. It is also applicable to the rehabilitation of steel structures. A simplifi...
The CFRP strengthening has the advantages of low density, high strength, facility, endurance, etc, so it has been widely applied to strengthen reinforced concrete structures. It is also applicable to the rehabilitation of steel structures. A simplifi...
2008, 38(3): 109-111.
doi: 10.13204/j.gyjz200803029
Abstract:
Based on static experimental research, the major factors that influence strengthening effect and the destroyed mode of the steel beam bolt splicing joint strengthened by CFRP are observed. The numerical modeling has been done by the bolt splicing joi...
Based on static experimental research, the major factors that influence strengthening effect and the destroyed mode of the steel beam bolt splicing joint strengthened by CFRP are observed. The numerical modeling has been done by the bolt splicing joi...
2008, 38(3): 112-114.
doi: 10.13204/j.gyjz200803030
Abstract:
The skew bridge in a puddling furnace was found to have heavy vibrations when it was working, also it had common structural damages, after structure inspecting, vibration test and computation analysis, the scheme of structural disposal was proposed.
The skew bridge in a puddling furnace was found to have heavy vibrations when it was working, also it had common structural damages, after structure inspecting, vibration test and computation analysis, the scheme of structural disposal was proposed.
2008, 38(3): 115-119.
doi: 10.13204/j.gyjz200803031
Abstract:
For the foundation ex cavation with shallow saturation-fine and sility sand layer which easily results drift sand under hydrodynamic pressure, an economical support system is adopted. Taking the design and construction plan of an apartment foundation...
For the foundation ex cavation with shallow saturation-fine and sility sand layer which easily results drift sand under hydrodynamic pressure, an economical support system is adopted. Taking the design and construction plan of an apartment foundation...
