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2004 Vol. 34, No. 2
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2004, 34(2): 1-4.
doi: 10.13204/j.gyjz200402001
Abstract:
The culture of Chinese architecture has a very long history. Cultivating and promoting the aesthetics spirit of Chinese nationa architecture are an important link in the great rejuvenation of the modern Chinese nation. The exploration of the national style of modern Chinese architecture has been going on till the present time. The present paper will expound the above premature topic through the aesthetics value and creative practice.
The culture of Chinese architecture has a very long history. Cultivating and promoting the aesthetics spirit of Chinese nationa architecture are an important link in the great rejuvenation of the modern Chinese nation. The exploration of the national style of modern Chinese architecture has been going on till the present time. The present paper will expound the above premature topic through the aesthetics value and creative practice.
2004, 34(2): 5-6,12.
doi: 10.13204/j.gyjz200402002
Abstract:
The strategy of sustainable development should be observed in the construction of an urban housing estate with integral ecological architectural outlook established. The concept of housing plan is formed by taking the environment as the center, and combining characteristics of climate and a region. The eco environmental effect of an urban housing estate can be produced by science and technology. Whose ecological tactics are assessed comprehensively through an implement of intelligent management and high quality, so as to getting an ideal environment of the eco housing estate.
The strategy of sustainable development should be observed in the construction of an urban housing estate with integral ecological architectural outlook established. The concept of housing plan is formed by taking the environment as the center, and combining characteristics of climate and a region. The eco environmental effect of an urban housing estate can be produced by science and technology. Whose ecological tactics are assessed comprehensively through an implement of intelligent management and high quality, so as to getting an ideal environment of the eco housing estate.
2004, 34(2): 7-9.
doi: 10.13204/j.gyjz200402003
Abstract:
The article begins with the source of green ecological theory, then gives a blueprint to green ecological residence in two aspects\_its essential forming factors and its categories and characters, and finally comes up with the proposals for the construction of a green ecological residence.
The article begins with the source of green ecological theory, then gives a blueprint to green ecological residence in two aspects\_its essential forming factors and its categories and characters, and finally comes up with the proposals for the construction of a green ecological residence.
2004, 34(2): 10-12.
doi: 10.13204/j.gyjz200402004
Abstract:
As a ideal pattern of human habitat, ecological community need continuously develop perfect.Based on the principles of composite ecosystem, this paper summarized its concept.Meanwhile some problems were pointed out in the development of an ecological community in China today, on the basis of which the frame of a target system is established initially, then some relevant suggestions are given.
As a ideal pattern of human habitat, ecological community need continuously develop perfect.Based on the principles of composite ecosystem, this paper summarized its concept.Meanwhile some problems were pointed out in the development of an ecological community in China today, on the basis of which the frame of a target system is established initially, then some relevant suggestions are given.
2004, 34(2): 13-15.
doi: 10.13204/j.gyjz200402005
Abstract:
The key to carrying on excellent historical and cultural traditions is to find out the point of agreement among the traditional cultural heritage, modern economy, technical conditions and lifestyle.The model languange is used for the design, which is a combination of group diatribution, function organization and structual measure etc that come from local traditional private residence and suitable for apecific place climate condition;and then this design is summerized and improved, so as to suit a new lifestyle.A residential environment with regional features and sustainable development can be created by means of low technology and low cost.
The key to carrying on excellent historical and cultural traditions is to find out the point of agreement among the traditional cultural heritage, modern economy, technical conditions and lifestyle.The model languange is used for the design, which is a combination of group diatribution, function organization and structual measure etc that come from local traditional private residence and suitable for apecific place climate condition;and then this design is summerized and improved, so as to suit a new lifestyle.A residential environment with regional features and sustainable development can be created by means of low technology and low cost.
2004, 34(2): 16-17,21.
doi: 10.13204/j.gyjz200402006
Abstract:
Though the introduction to trials of developing green and energy saving community at Handan Mingzhu Garden, the paper points out some clear experiences in purchasing houses.
Though the introduction to trials of developing green and energy saving community at Handan Mingzhu Garden, the paper points out some clear experiences in purchasing houses.
2004, 34(2): 18-21.
doi: 10.13204/j.gyjz200402007
Abstract:
With the accelerating of dwelling houses construction and the improving of dwelling houses condition, peoples request of the interiors condition has already gone beyond the basic living request. Nowadays, the importance of ecological project and study have been recognized. So the interior designs creative activities should accord with the point of ecology. And creating the interior condition that it should be nature returning, environmental and energy saving, tranquility, pure and fresh, natural, simple and exquisite by using innocuous and harmless raw materials and the green structural materials. Peolpe place hopes on improving the living condition of human beings and in pursuit of the style and personality of the interiors condition by designing. Thus, the concept of green design for sustainable development straegy is brounght forward to creating pastoral interior condition of pastoralism.
With the accelerating of dwelling houses construction and the improving of dwelling houses condition, peoples request of the interiors condition has already gone beyond the basic living request. Nowadays, the importance of ecological project and study have been recognized. So the interior designs creative activities should accord with the point of ecology. And creating the interior condition that it should be nature returning, environmental and energy saving, tranquility, pure and fresh, natural, simple and exquisite by using innocuous and harmless raw materials and the green structural materials. Peolpe place hopes on improving the living condition of human beings and in pursuit of the style and personality of the interiors condition by designing. Thus, the concept of green design for sustainable development straegy is brounght forward to creating pastoral interior condition of pastoralism.
2004, 34(2): 22-24,55.
doi: 10.13204/j.gyjz200402008
Abstract:
This paper introduces the monolithic cast modular box system, which is developed by Beijing Building Research Institute of CSCEC and produced by New Star Boxed Construction Unit Factory, and the new type modular box assempled with precast flat mould concrete, which is developed by Beijing Dongsheng Boxed Construction Unit Factory, and compares their advantages and disadvantages on the form, construction, production technique, connection and behavior, which may provide a reference for the progress and development of the modular box system.
This paper introduces the monolithic cast modular box system, which is developed by Beijing Building Research Institute of CSCEC and produced by New Star Boxed Construction Unit Factory, and the new type modular box assempled with precast flat mould concrete, which is developed by Beijing Dongsheng Boxed Construction Unit Factory, and compares their advantages and disadvantages on the form, construction, production technique, connection and behavior, which may provide a reference for the progress and development of the modular box system.
2004, 34(2): 25-27,78.
doi: 10.13204/j.gyjz200402009
Abstract:
This paper presents the application of unbonded prestressed concrete technique to cylindrical shell with big diameter through an engineering case. Structure can be analyzed and designed by using the axisymmetrical cylindrical shell theory with moment. A series of stress strain and displacement tests are carried out in situ construction.The test results have good agreement with the theoretical numerical results. Th case study shows the merit of unbonded prestressed concrete technique used in cylindrical shell with big diameter in controlling the occurrence of crack, and it also shows the significant economic and social benefits.This technique has a bright prospects in engineering construction. In addition, some suggestions on designing theory are put forward.
This paper presents the application of unbonded prestressed concrete technique to cylindrical shell with big diameter through an engineering case. Structure can be analyzed and designed by using the axisymmetrical cylindrical shell theory with moment. A series of stress strain and displacement tests are carried out in situ construction.The test results have good agreement with the theoretical numerical results. Th case study shows the merit of unbonded prestressed concrete technique used in cylindrical shell with big diameter in controlling the occurrence of crack, and it also shows the significant economic and social benefits.This technique has a bright prospects in engineering construction. In addition, some suggestions on designing theory are put forward.
2004, 34(2): 28-32.
doi: 10.13204/j.gyjz200402010
Abstract:
By elastoplastic time history analysis of reinforced concrete frame structures and frame shear wall structures with special shaped columns, and by summarizing the experimental results of special shaped columns and frames with special shaped columns, the application of special shaped columns to buildings with seismic fortification intensity 8 was studied and the design recommendations are presented.
By elastoplastic time history analysis of reinforced concrete frame structures and frame shear wall structures with special shaped columns, and by summarizing the experimental results of special shaped columns and frames with special shaped columns, the application of special shaped columns to buildings with seismic fortification intensity 8 was studied and the design recommendations are presented.
2004, 34(2): 33-36.
doi: 10.13204/j.gyjz200402011
Abstract:
A new and simplified numerical integration method of sections is suggested, and the secant stiffness and tangent stiffness calculation simple formulation of reinforced concrete members under bieccentric compression is derived, based on nonlinear behavior of materials and geometry. Using this method, nonlinear analysis of some reinforced concrete members under bieccentric compression are taken by tracing full path.The theoretical results correspond well with experimental data.
A new and simplified numerical integration method of sections is suggested, and the secant stiffness and tangent stiffness calculation simple formulation of reinforced concrete members under bieccentric compression is derived, based on nonlinear behavior of materials and geometry. Using this method, nonlinear analysis of some reinforced concrete members under bieccentric compression are taken by tracing full path.The theoretical results correspond well with experimental data.
2004, 34(2): 37-40,32.
doi: 10.13204/j.gyjz200402012
Abstract:
According to the experimental study on mechanical properties of reinforced cement\-soil beams, reinforced cement soil beams have two possible failure modes:shear failure occurs if anchoring force is enough and bond failure occurs if anchoring force isn't enough; the bond stress at a certain location between shape steel and cement soil accretes with the increase of load, then keep basically invariable when it reaches bond strength. The closer its location is to beams end, the later it reaches bond strength. When the bond stress at the end of beams reaches bond strength eventually, the bond stress is uniform along the interface. Further load would create slippage between shape steel and cement soil and causes failure of beams; the bond strength accretes with the increase of compressive strength of cement soil, and the bond force also accretes with the increase of bond length and contact area between shape steel and cement soil.
According to the experimental study on mechanical properties of reinforced cement\-soil beams, reinforced cement soil beams have two possible failure modes:shear failure occurs if anchoring force is enough and bond failure occurs if anchoring force isn't enough; the bond stress at a certain location between shape steel and cement soil accretes with the increase of load, then keep basically invariable when it reaches bond strength. The closer its location is to beams end, the later it reaches bond strength. When the bond stress at the end of beams reaches bond strength eventually, the bond stress is uniform along the interface. Further load would create slippage between shape steel and cement soil and causes failure of beams; the bond strength accretes with the increase of compressive strength of cement soil, and the bond force also accretes with the increase of bond length and contact area between shape steel and cement soil.
2004, 34(2): 41-44,36.
doi: 10.13204/j.gyjz200402013
Abstract:
According to the fracture mechanism of the linings acted on by negative friction in a drilled shaft, a type of compressible lining joint installation, with a ring plate adding to rib plates, is presented. The physical simulation tests of this installation were finished under uniaxial and triaxial compression. The compressing characteristics, the vertical critical load, and the acting behavior between ring plate and rib plates were investigated. The test results prove that this kind of installation is of good waterproofing, and can unload vertical stress in shaft linings and then prevent the shaft lining fracture. Some opinions on the design methods and the values of parameters of this compressible joint are also put forward.
According to the fracture mechanism of the linings acted on by negative friction in a drilled shaft, a type of compressible lining joint installation, with a ring plate adding to rib plates, is presented. The physical simulation tests of this installation were finished under uniaxial and triaxial compression. The compressing characteristics, the vertical critical load, and the acting behavior between ring plate and rib plates were investigated. The test results prove that this kind of installation is of good waterproofing, and can unload vertical stress in shaft linings and then prevent the shaft lining fracture. Some opinions on the design methods and the values of parameters of this compressible joint are also put forward.
2004, 34(2): 45-49.
doi: 10.13204/j.gyjz200402014
Abstract:
In this paper the basic principles of the rammed under expanded piles abroad are concisely introduced. Then the mechanisms、characteristics, suitable ranges, construction sequences of chinese rammed under expanded piles are described in detail. Finally the basic principles, load bearing mechanisms, suitable ranges and construction sequences of ram compaction piles with composite bearing base are briefly described.
In this paper the basic principles of the rammed under expanded piles abroad are concisely introduced. Then the mechanisms、characteristics, suitable ranges, construction sequences of chinese rammed under expanded piles are described in detail. Finally the basic principles, load bearing mechanisms, suitable ranges and construction sequences of ram compaction piles with composite bearing base are briefly described.
2004, 34(2): 50-52.
doi: 10.13204/j.gyjz200402015
Abstract:
This paper performs the ultimate bearing capacity analysis on a reticulated shell of dry coal shed that has some local damages to check the ultimate bearing capacity of the damaged reticulated shell with short term load, and gets the ultimate failure form that can still hold the short term load. The result indicates that safety factor of the reticulated shell structure is rather high and that the reticulated shell structure is a kind of rational space structure. Furthermore some advices to improve the design of the reticulated shell structure are put forward and can be helpful to designer.
This paper performs the ultimate bearing capacity analysis on a reticulated shell of dry coal shed that has some local damages to check the ultimate bearing capacity of the damaged reticulated shell with short term load, and gets the ultimate failure form that can still hold the short term load. The result indicates that safety factor of the reticulated shell structure is rather high and that the reticulated shell structure is a kind of rational space structure. Furthermore some advices to improve the design of the reticulated shell structure are put forward and can be helpful to designer.
2004, 34(2): 53-55.
doi: 10.13204/j.gyjz200402016
Abstract:
Finite element analyses on the static behavior of stepped T type CR joints are conducted. The validity of the analytical results is verified by comparing with the experimental results of four joints. The effects of chord thickness, the ratio of the branch diameter to the chord width and the chord height to thickness on the static behavior of stepped T type CR joints are studied. The behavior of stepped T type CR joints is compared with corresponding RR joints and cross joints. Some useful conclusions and suggestions are put forward.
Finite element analyses on the static behavior of stepped T type CR joints are conducted. The validity of the analytical results is verified by comparing with the experimental results of four joints. The effects of chord thickness, the ratio of the branch diameter to the chord width and the chord height to thickness on the static behavior of stepped T type CR joints are studied. The behavior of stepped T type CR joints is compared with corresponding RR joints and cross joints. Some useful conclusions and suggestions are put forward.
2004, 34(2): 56-58,87.
doi: 10.13204/j.gyjz200402017
Abstract:
Due to the mechanical limitation of the steel tubular concrete structure when bended, a new composite structure has been proposed, which combines properties of steel and concrete with prestressed technique. It widens the application of steel tubular structure. Also the elastoplastic calculation theory has been introduced by the analysis of the mechanism. At last, an application example is introduced.
Due to the mechanical limitation of the steel tubular concrete structure when bended, a new composite structure has been proposed, which combines properties of steel and concrete with prestressed technique. It widens the application of steel tubular structure. Also the elastoplastic calculation theory has been introduced by the analysis of the mechanism. At last, an application example is introduced.
2004, 34(2): 59-60,49.
doi: 10.13204/j.gyjz200402018
Abstract:
The three-span(40+50+40)m continuous steel-concrete composite girder is commonly used in some bridges of the high-speed railway.In this paper, the elastic ultimate state and plastic ultimate state of the continuous steel-concrete composite girder are studied and its security at different states is also evaluated, which may be a reference for design.
The three-span(40+50+40)m continuous steel-concrete composite girder is commonly used in some bridges of the high-speed railway.In this paper, the elastic ultimate state and plastic ultimate state of the continuous steel-concrete composite girder are studied and its security at different states is also evaluated, which may be a reference for design.
2004, 34(2): 61-64.
doi: 10.13204/j.gyjz200402019
Abstract:
The load and resistance factored designing method of American Institute of Steel Construction is introduced for the load-carrying capacity of concrete-filled circular steel tubes, which includes the basic parameters, load_carrying capacity of the members subjected to axial compressive load, axial compressive load and bending moment, as well as pure bending moment.At the same time, comments are made to the background of the design formulas and their characteristics.
The load and resistance factored designing method of American Institute of Steel Construction is introduced for the load-carrying capacity of concrete-filled circular steel tubes, which includes the basic parameters, load_carrying capacity of the members subjected to axial compressive load, axial compressive load and bending moment, as well as pure bending moment.At the same time, comments are made to the background of the design formulas and their characteristics.
2004, 34(2): 65-68,90.
doi: 10.13204/j.gyjz200402020
Abstract:
Eurocode 4 [EC4(94)] designing method of European Committee for Standardization is introduced for the load-carrying capacity of concrete-filled circular steel tubes, which includes the basic parameters, load-carrying capacity of the members subjected to axial compressive load, axial compressive load and bending moment, as well as pure bending moment.At the same time, comments are made to the background of the design formulas and their characteristics.
Eurocode 4 [EC4(94)] designing method of European Committee for Standardization is introduced for the load-carrying capacity of concrete-filled circular steel tubes, which includes the basic parameters, load-carrying capacity of the members subjected to axial compressive load, axial compressive load and bending moment, as well as pure bending moment.At the same time, comments are made to the background of the design formulas and their characteristics.
2004, 34(2): 69-74.
doi: 10.13204/j.gyjz200402021
Abstract:
The Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures published by Architectural Institute of Japan(AIJ) in 1997 and the Standards for Structural Calculation of Steel Reinforced Concrete Structures(5th edition) published by AIJ in 2001 are introduced for the load carrying capacity of concrete filled circular steel tubes, which includes the basic parameters, load carrying capacity of the members subjected to axial compressive load, axial compressive load and bending moment, as well as pure bending moment.At the same time, comments are made to the background of the design formulas and their characteristics.
The Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures published by Architectural Institute of Japan(AIJ) in 1997 and the Standards for Structural Calculation of Steel Reinforced Concrete Structures(5th edition) published by AIJ in 2001 are introduced for the load carrying capacity of concrete filled circular steel tubes, which includes the basic parameters, load carrying capacity of the members subjected to axial compressive load, axial compressive load and bending moment, as well as pure bending moment.At the same time, comments are made to the background of the design formulas and their characteristics.
2004, 34(2): 75-78.
doi: 10.13204/j.gyjz200402022
Abstract:
The calculation methods of the stiffness of concrete filled circular steel tubes in different codes worldwide are introduced, which includes American Institute of Steel Construction(AISC)Load and Resistance Factor Design specification for structural building(LRFD), European Committee for Standardization(CEN) Eurocode 4Design of composite steel and concrete structuresPart 1 1:General rules and rules for buildings, Architectural Institute of Japan(AIJ)recommendations for design and construction of concrete filled steel tubular structures and the standards for structural calculation of steel reinforced concrete structures, Chinese design codes for the design of concrete\-filled circular steel tubes, which includes JCJ 01 89, CECS 28:90 and DL/T 5085 1999.The comparison is carried out for the different formulas of the stiffness in above codes and comments are made for the background of different stiffness formulas and their characters.
The calculation methods of the stiffness of concrete filled circular steel tubes in different codes worldwide are introduced, which includes American Institute of Steel Construction(AISC)Load and Resistance Factor Design specification for structural building(LRFD), European Committee for Standardization(CEN) Eurocode 4Design of composite steel and concrete structuresPart 1 1:General rules and rules for buildings, Architectural Institute of Japan(AIJ)recommendations for design and construction of concrete filled steel tubular structures and the standards for structural calculation of steel reinforced concrete structures, Chinese design codes for the design of concrete\-filled circular steel tubes, which includes JCJ 01 89, CECS 28:90 and DL/T 5085 1999.The comparison is carried out for the different formulas of the stiffness in above codes and comments are made for the background of different stiffness formulas and their characters.
2004, 34(2): 79-81.
doi: 10.13204/j.gyjz200402023
Abstract:
The principle and the design method of reinforced concrete columns strengthened with prestressed struts were described. The concept and method of SEU-DEEP software design were introduced in detail. Finally, two examples were computed by the software. The results were agreed well with those calculated by the specification.The compute procedure is considerably simpler than traditional method.
The principle and the design method of reinforced concrete columns strengthened with prestressed struts were described. The concept and method of SEU-DEEP software design were introduced in detail. Finally, two examples were computed by the software. The results were agreed well with those calculated by the specification.The compute procedure is considerably simpler than traditional method.
2004, 34(2): 82-84,81.
doi: 10.13204/j.gyjz200402024
Abstract:
Based on the experiment of sixteen simply supported beams strengthened in shear with CFRP sheets, the failure modes, the strain distribution feature of CFRP intersected by the oblique section and the influence factors of shear strength are studied. Considering the non uniformity of strains in CFRP and the angle of critical shear crack synthetically, the formulas related with shear span ratio are proposed. And then, a calculation method of the shear bearing capacity is established whose results are acceptable comparing with the experimental data.
Based on the experiment of sixteen simply supported beams strengthened in shear with CFRP sheets, the failure modes, the strain distribution feature of CFRP intersected by the oblique section and the influence factors of shear strength are studied. Considering the non uniformity of strains in CFRP and the angle of critical shear crack synthetically, the formulas related with shear span ratio are proposed. And then, a calculation method of the shear bearing capacity is established whose results are acceptable comparing with the experimental data.
2004, 34(2): 85-87.
doi: 10.13204/j.gyjz200402025
Abstract:
Based on the analysis of the load carrying capacity curve of eccentrical compression reinforced concrete column, the characteristics and qualifications of prop rod strengthen method are discussed, the method and condition of using prestressing stay to strengthen a reinforced concrete column are given and its application to engineering is also introduced.
Based on the analysis of the load carrying capacity curve of eccentrical compression reinforced concrete column, the characteristics and qualifications of prop rod strengthen method are discussed, the method and condition of using prestressing stay to strengthen a reinforced concrete column are given and its application to engineering is also introduced.
2004, 34(2): 88-90.
doi: 10.13204/j.gyjz200402026
Abstract:
Combining the treatment of a sliding accident of No.3 retaining wall of No.1 blast furnace project for Angang Group, a strengthening method using man dug cast in place pile is introduced. It is proved that this scheme is convenient and reliable, which provides a reference for similar projects.
Combining the treatment of a sliding accident of No.3 retaining wall of No.1 blast furnace project for Angang Group, a strengthening method using man dug cast in place pile is introduced. It is proved that this scheme is convenient and reliable, which provides a reference for similar projects.
2004, 34(2): 91-93.
doi: 10.13204/j.gyjz200402027
Abstract:
The accidnet to a converter foundation is appraised, and its causes are also analyzed; on the basis of which some practical suggestions are proposed on the design of converter foundation.
The accidnet to a converter foundation is appraised, and its causes are also analyzed; on the basis of which some practical suggestions are proposed on the design of converter foundation.
