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2004 Vol. 34, No. 7
Display Method:
2004, 34(7): 1-6.
doi: 10.13204/j.gyjz200407001
Abstract:
The concept and features of externally prestressed concrete structure are expounded. The design method of externally prestressed structure are systematically illuminated, including the tendon profiles, analysis of internal force at both the serviceab...
The concept and features of externally prestressed concrete structure are expounded. The design method of externally prestressed structure are systematically illuminated, including the tendon profiles, analysis of internal force at both the serviceab...
2004, 34(7): 7-11,15.
doi: 10.13204/j.gyjz200407002
Abstract:
The method of secondary moment under restraint is a convenient way to solve the interior force of prestressed statically indeterminate structure. Based on this method, the secondary interior force of all kinds of external tendon profile under three r...
The method of secondary moment under restraint is a convenient way to solve the interior force of prestressed statically indeterminate structure. Based on this method, the secondary interior force of all kinds of external tendon profile under three r...
2004, 34(7): 12-15.
doi: 10.13204/j.gyjz200407003
Abstract:
The deflection calculation methods of externally prestressed concrete beam both home and abroad are reviewed.The existing methods have considered tendon stress increase and second-order effect, but limited to shor-t term deflection calculation. Furth...
The deflection calculation methods of externally prestressed concrete beam both home and abroad are reviewed.The existing methods have considered tendon stress increase and second-order effect, but limited to shor-t term deflection calculation. Furth...
2004, 34(7): 16-19.
doi: 10.13204/j.gyjz200407004
Abstract:
The structure and construction method of externally prestressed structures differ greatly from structures with bonded or unbonded tendons, therefore generate the difference in prestressing loss. In this paper, the calculation method of prestressing l...
The structure and construction method of externally prestressed structures differ greatly from structures with bonded or unbonded tendons, therefore generate the difference in prestressing loss. In this paper, the calculation method of prestressing l...
2004, 34(7): 20-24.
doi: 10.13204/j.gyjz200407005
Abstract:
The corrosion mechanism of externally prestressed tendons and damage mechanism of concrete are analysed. On this basis of analysis, the measures to prevent the erosion of externally prestressed tendons and to improve the durability of concrete are co...
The corrosion mechanism of externally prestressed tendons and damage mechanism of concrete are analysed. On this basis of analysis, the measures to prevent the erosion of externally prestressed tendons and to improve the durability of concrete are co...
2004, 34(7): 25-27.
doi: 10.13204/j.gyjz200407006
Abstract:
In the design of prestressed concrete beams, Intergral calculus is needed in calculating the geometric properties of irregular cross section. By presenting a case of externally prestressed beams with U-shaped cross section, a section equivalent conve...
In the design of prestressed concrete beams, Intergral calculus is needed in calculating the geometric properties of irregular cross section. By presenting a case of externally prestressed beams with U-shaped cross section, a section equivalent conve...
2004, 34(7): 28-29,32.
doi: 10.13204/j.gyjz200407007
Abstract:
The vertical temperature gradient of atrium is big because it has the effects of greenhouse and chimney.Therefore, if its design is improper, there will be a poor thermal amenity in the environment,which results in an increase in energy consumption. ...
The vertical temperature gradient of atrium is big because it has the effects of greenhouse and chimney.Therefore, if its design is improper, there will be a poor thermal amenity in the environment,which results in an increase in energy consumption. ...
2004, 34(7): 30-32.
doi: 10.13204/j.gyjz200407008
Abstract:
Using right security color for building and making it be standardized by applying colorcs effect to physiology and psychology have an important meaning to improve the security and comfort of environment. The attribute of color and its application in ...
Using right security color for building and making it be standardized by applying colorcs effect to physiology and psychology have an important meaning to improve the security and comfort of environment. The attribute of color and its application in ...
2004, 34(7): 33-35,39.
doi: 10.13204/j.gyjz200407009
Abstract:
Structural mechanics method (SMM)is usually used to analyze rigid pipeline and the interaction between soil and pipeline is ignored.Transfer matrix approach (TMA)is presented to study interaction between soil and buried box pipeline in this paper.The...
Structural mechanics method (SMM)is usually used to analyze rigid pipeline and the interaction between soil and pipeline is ignored.Transfer matrix approach (TMA)is presented to study interaction between soil and buried box pipeline in this paper.The...
2004, 34(7): 36-39.
doi: 10.13204/j.gyjz200407010
Abstract:
By discussing the methods of optimum design, a reasonable model for optimum design of piled raft foundation is set up in this paper. From the analyses, some optimum results are achieved. Furthermore, the design of piled raft foundation can be guided ...
By discussing the methods of optimum design, a reasonable model for optimum design of piled raft foundation is set up in this paper. From the analyses, some optimum results are achieved. Furthermore, the design of piled raft foundation can be guided ...
2004, 34(7): 40-43.
doi: 10.13204/j.gyjz200407011
Abstract:
The bearing capacity of stiffened DCM (Deep Cement Mixing)pile are studied and a new practical bearing capacity design method is presented.The design values are compared with the field test values in two projects.The comparison result shows that the ...
The bearing capacity of stiffened DCM (Deep Cement Mixing)pile are studied and a new practical bearing capacity design method is presented.The design values are compared with the field test values in two projects.The comparison result shows that the ...
2004, 34(7): 44-46.
doi: 10.13204/j.gyjz200407012
Abstract:
This paper describes a series of tests carried out on the uniaxial compression of ex isting un-carbonated concrete that had been in service for 10, 20 and 40 years, respectively, and 24 complete stress-strain curves in total were obtained.Compared wi...
This paper describes a series of tests carried out on the uniaxial compression of ex isting un-carbonated concrete that had been in service for 10, 20 and 40 years, respectively, and 24 complete stress-strain curves in total were obtained.Compared wi...
2004, 34(7): 47-49.
doi: 10.13204/j.gyjz200407013
Abstract:
Wavelet neural network is a kind of neural networks, which can closely combine wavelet theory with neural network theory, and avoid the blindness of framework designs for BP neural networks and the problem of nonlinear optimizations, such as local op...
Wavelet neural network is a kind of neural networks, which can closely combine wavelet theory with neural network theory, and avoid the blindness of framework designs for BP neural networks and the problem of nonlinear optimizations, such as local op...
2004, 34(7): 50-53,60.
doi: 10.13204/j.gyjz200407014
Abstract:
The current applied fields of external prestressing mainly includes externally prestressed concrete bridge,structure rehabilitation and prestressed steel structure, etc.The materials and systems of various applications are introduced herein, the sele...
The current applied fields of external prestressing mainly includes externally prestressed concrete bridge,structure rehabilitation and prestressed steel structure, etc.The materials and systems of various applications are introduced herein, the sele...
2004, 34(7): 54-56.
doi: 10.13204/j.gyjz200407015
Abstract:
Various methods on nonlinear analytical techniques for externally prestressed concrete presented by scholars from both home and abroad was reviewed, in which more emphasis is paid to such issues as the nonlinearity factors, element model types and im...
Various methods on nonlinear analytical techniques for externally prestressed concrete presented by scholars from both home and abroad was reviewed, in which more emphasis is paid to such issues as the nonlinearity factors, element model types and im...
2004, 34(7): 57-60.
doi: 10.13204/j.gyjz200407016
Abstract:
Axial compression regidity and flexural rigidity of concrete-filled steel tubular are very important parameters for seismic behavior analysis. An attempt to predict the load-deformation behavior of concrete-filled steel tubular axial loaded members a...
Axial compression regidity and flexural rigidity of concrete-filled steel tubular are very important parameters for seismic behavior analysis. An attempt to predict the load-deformation behavior of concrete-filled steel tubular axial loaded members a...
2004, 34(7): 61-63.
doi: 10.13204/j.gyjz200407017
Abstract:
In this paper, the instability paths of two typical structural systems of Chengdu airport terminals, composed of single-layer reticulated cylindrical shell and supporting system, were investigated by non-linear analysis program based on Beam-Column t...
In this paper, the instability paths of two typical structural systems of Chengdu airport terminals, composed of single-layer reticulated cylindrical shell and supporting system, were investigated by non-linear analysis program based on Beam-Column t...
2004, 34(7): 64-66.
doi: 10.13204/j.gyjz200407018
Abstract:
Three specimens of warpped steel concrete exterior joints which varied in axial compression ratio and the form of angle steel for beam, are put to test;and the forced feature of the angle steel as well as the aseismic behavior of the joints under the...
Three specimens of warpped steel concrete exterior joints which varied in axial compression ratio and the form of angle steel for beam, are put to test;and the forced feature of the angle steel as well as the aseismic behavior of the joints under the...
2004, 34(7): 67-69.
doi: 10.13204/j.gyjz200407019
Abstract:
Because of the crane loads, columns in portal frames are stepped.The effective length of the stepped columns is not available either from the specifications or from the literature, when the column base is fixed.This paper analyses the buckling of hin...
Because of the crane loads, columns in portal frames are stepped.The effective length of the stepped columns is not available either from the specifications or from the literature, when the column base is fixed.This paper analyses the buckling of hin...
2004, 34(7): 70-72.
doi: 10.13204/j.gyjz200407020
Abstract:
A 3D nonlinear finite element method is used to analyze the distribution of prying forces of semi-rigid beam-column connections of a steel structure and the effect of the prying forces on the forced performance of the connections. The maximum of the ...
A 3D nonlinear finite element method is used to analyze the distribution of prying forces of semi-rigid beam-column connections of a steel structure and the effect of the prying forces on the forced performance of the connections. The maximum of the ...
2004, 34(7): 73-77.
doi: 10.13204/j.gyjz200407021
Abstract:
Formr finding is the first step in a membrane structure design, which is paramount for the structural performance of a membrane structure.To understant the principle of form??finding, there are four questions being discussed, that are the relationshi...
Formr finding is the first step in a membrane structure design, which is paramount for the structural performance of a membrane structure.To understant the principle of form??finding, there are four questions being discussed, that are the relationshi...
2004, 34(7): 78-80,82.
doi: 10.13204/j.gyjz200407022
Abstract:
Two methods of synthetic fuzzy evaluation for site types are given based on the current Chinese Seismic Design Code for Buildings(GB 50011-2001). And a method for determining site characteristic period( the corner period of design response spectra) i...
Two methods of synthetic fuzzy evaluation for site types are given based on the current Chinese Seismic Design Code for Buildings(GB 50011-2001). And a method for determining site characteristic period( the corner period of design response spectra) i...
2004, 34(7): 81-82.
doi: 10.13204/j.gyjz200407023
Abstract:
Revising the articles of Fireproof Code of Building Design timely, accurately and coordinately is the basis for doing a good job of safety fireproofing of building design.So, it is practical to reinforce the emendation of fireproof regulations so as ...
Revising the articles of Fireproof Code of Building Design timely, accurately and coordinately is the basis for doing a good job of safety fireproofing of building design.So, it is practical to reinforce the emendation of fireproof regulations so as ...
2004, 34(7): 83-84.
doi: 10.13204/j.gyjz200407024
Abstract:
The steel-encased strengthening method was used widely in the field of the structural strengthening.Based on Technical Specification for Strengthening Concrete Structures (CECS 25∶90), the principle and the design method of reinforced concrete beam s...
The steel-encased strengthening method was used widely in the field of the structural strengthening.Based on Technical Specification for Strengthening Concrete Structures (CECS 25∶90), the principle and the design method of reinforced concrete beam s...
2004, 34(7): 85-87.
doi: 10.13204/j.gyjz200407025
Abstract:
Experimental research on the flexural behavior of 17 RC beams strengthened by carbon fiber sheet( CFS) under quadratic loading has been carried out. The experimental researches considered that how the reinforcement ratio of the longitudinal reinforci...
Experimental research on the flexural behavior of 17 RC beams strengthened by carbon fiber sheet( CFS) under quadratic loading has been carried out. The experimental researches considered that how the reinforcement ratio of the longitudinal reinforci...
2004, 34(7): 88-90,96.
doi: 10.13204/j.gyjz200407026
Abstract:
The effects of two strengthening manners of GFRP and the initial crack on aseismic behavior of the strengthened porous brick masonry walls are explored through experimental study on three specimens strengthened with GFRP.At the same time, the calcula...
The effects of two strengthening manners of GFRP and the initial crack on aseismic behavior of the strengthened porous brick masonry walls are explored through experimental study on three specimens strengthened with GFRP.At the same time, the calcula...
2004, 34(7): 91-92,98.
doi: 10.13204/j.gyjz200407027
Abstract:
Carbon Fiber Reinforced Polymer seldom used in strengthening steel structures reinforcement due to lack of experimental research and theoretic support. This article introduced a series of experiments of strengthening steel structures with CFRP. The m...
Carbon Fiber Reinforced Polymer seldom used in strengthening steel structures reinforcement due to lack of experimental research and theoretic support. This article introduced a series of experiments of strengthening steel structures with CFRP. The m...
2004, 34(7): 93-96.
doi: 10.13204/j.gyjz200407028
Abstract:
Light steel portal frames have been extensively used for industrial mill buildings in recent years, and much attention is being paid to the fireproofing of steel structures.It is introduced that the detection analysis of the structural damage to a co...
Light steel portal frames have been extensively used for industrial mill buildings in recent years, and much attention is being paid to the fireproofing of steel structures.It is introduced that the detection analysis of the structural damage to a co...
2004, 34(7): 97-98.
doi: 10.13204/j.gyjz200407029
Abstract:
Windows are the opening parts of a building envelope, the energy loss through windows may amount to half of the total energy loss of a building envelope. Windows are the key sections of building energy conservation. The recent advances in technology ...
Windows are the opening parts of a building envelope, the energy loss through windows may amount to half of the total energy loss of a building envelope. Windows are the key sections of building energy conservation. The recent advances in technology ...
