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2006 Vol. 36, No. 10
Display Method:
2006, 36(10): 1-3.
doi: 10.13204/j.gyjz200610001
Abstract:
It is described that the design considerations on overall layout, plan, elevation and details of building design of waste incineration plant based on design practice and according to the process feature. It is also described in details that the measures of water proof and seepage proof of dump pit and air-tight of the plant based on the experience in practical works.
It is described that the design considerations on overall layout, plan, elevation and details of building design of waste incineration plant based on design practice and according to the process feature. It is also described in details that the measures of water proof and seepage proof of dump pit and air-tight of the plant based on the experience in practical works.
2006, 36(10): 4-5.
doi: 10.13204/j.gyjz200610002
Abstract:
This center is a comprehensive architectural complex of culture and sports. For water supply system of the natatorium, the scheme of large-scale solar energy system was proposed to make full use of the solar radiation energy that is a regenerable resource in plateau. The project was the largest one in the use of solar energy in China, which ingeniously solved the technical problems, such as water balance, heating power balance and switching over of multisystem etc.
This center is a comprehensive architectural complex of culture and sports. For water supply system of the natatorium, the scheme of large-scale solar energy system was proposed to make full use of the solar radiation energy that is a regenerable resource in plateau. The project was the largest one in the use of solar energy in China, which ingeniously solved the technical problems, such as water balance, heating power balance and switching over of multisystem etc.
2006, 36(10): 6-9.
doi: 10.13204/j.gyjz200610003
Abstract:
BerlinMarzahn Emergency Hospital is established and expanded based on a 120-year historical hospital, it is mainly for firs-t aid and health healing. After meticulously designed by the designer, old and new buildings are incorporated with surroundings properly by selecting the elevation and colour so as to create a good environment for medical treatment and health healing. When making architectural design of a hospital building, German designers are closely in contact with users of the hospital. The design shall firstly satisfy the necessary conditions required by patient s treatment, furthermore it focuses on surroundings comfort which benefits patient s health recovery. Such design reflects the principle of peopleoriented, and the designed medical building is getting more practical and humane.
BerlinMarzahn Emergency Hospital is established and expanded based on a 120-year historical hospital, it is mainly for firs-t aid and health healing. After meticulously designed by the designer, old and new buildings are incorporated with surroundings properly by selecting the elevation and colour so as to create a good environment for medical treatment and health healing. When making architectural design of a hospital building, German designers are closely in contact with users of the hospital. The design shall firstly satisfy the necessary conditions required by patient s treatment, furthermore it focuses on surroundings comfort which benefits patient s health recovery. Such design reflects the principle of peopleoriented, and the designed medical building is getting more practical and humane.
2006, 36(10): 10-11.
doi: 10.13204/j.gyjz200610004
Abstract:
It is introduced the guesthouse scheme's reasonabl use of the limited land of urban gold district, which can guarantee the floor area and insure the investment's performance. From many respects, the construction of human public space environment and the organization of convenient clear flowing line of function are described. It is also made an approach to the creation of the guesthouse on condition of strictly confined land.
It is introduced the guesthouse scheme's reasonabl use of the limited land of urban gold district, which can guarantee the floor area and insure the investment's performance. From many respects, the construction of human public space environment and the organization of convenient clear flowing line of function are described. It is also made an approach to the creation of the guesthouse on condition of strictly confined land.
2006, 36(10): 12-17.
doi: 10.13204/j.gyjz200610005
Abstract:
The staircase is not only a functional element which can solve the problems of vertical passage between the floors in building construction but also may create the individualized construction modeling and the space environment. It is also tried to explore the functions of staircase which can display individualized design in a building through many project examples.
The staircase is not only a functional element which can solve the problems of vertical passage between the floors in building construction but also may create the individualized construction modeling and the space environment. It is also tried to explore the functions of staircase which can display individualized design in a building through many project examples.
2006, 36(10): 18-22.
doi: 10.13204/j.gyjz200610006
Abstract:
By analysing application samples of public toilets, it is summarized the experience in improving the design level of public toilets from six aspects: ratio of squatting pots for men and women; line of sight; streamline; direction of door opening; anteroom arrangement and the design of the details.
By analysing application samples of public toilets, it is summarized the experience in improving the design level of public toilets from six aspects: ratio of squatting pots for men and women; line of sight; streamline; direction of door opening; anteroom arrangement and the design of the details.
2006, 36(10): 23-24.
doi: 10.13204/j.gyjz200610007
Abstract:
Building energy-saving is a set national policy. It trends to have the same view on external wall insulation of a building. Five solutions are proposed to this. It is described that the factors effecting cracking resistance of plaster course and their solutions.
Building energy-saving is a set national policy. It trends to have the same view on external wall insulation of a building. Five solutions are proposed to this. It is described that the factors effecting cracking resistance of plaster course and their solutions.
2006, 36(10): 25-28.
doi: 10.13204/j.gyjz200610008
Abstract:
The large and middle sized hospitals under the constraints of limited site area are taken as the research topic. It focuses on the general planning and architectural design of this kind of existing hospitalsc renovation and extension. With some case study, it is realized that in order to make a good solution to those constraints, some important factors, which affects the design of this kind of projects, should be taken into account.
The large and middle sized hospitals under the constraints of limited site area are taken as the research topic. It focuses on the general planning and architectural design of this kind of existing hospitalsc renovation and extension. With some case study, it is realized that in order to make a good solution to those constraints, some important factors, which affects the design of this kind of projects, should be taken into account.
2006, 36(10): 29-31.
doi: 10.13204/j.gyjz200610009
Abstract:
By summarizing and analyzing the design of comprehensive medical building for the PLA. s No. 306 Hospital, it was attempted to expuond the importance to creating high_quality and diverse space environments, as well as humanized details, which are based on the rationality of functions, in the architectural design of a modern hospital.
By summarizing and analyzing the design of comprehensive medical building for the PLA. s No. 306 Hospital, it was attempted to expuond the importance to creating high_quality and diverse space environments, as well as humanized details, which are based on the rationality of functions, in the architectural design of a modern hospital.
2006, 36(10): 32-35.
doi: 10.13204/j.gyjz200610010
Abstract:
A method to regulate bias between the mass center and stiffness center of irregular plate structure is proposed. Some experience to regulate the bias in order to improve the internal force distribution of shear_torsion is concluded on the basis of analyzing and comparing the numeric results of typical calculated examples after and before requlation.
A method to regulate bias between the mass center and stiffness center of irregular plate structure is proposed. Some experience to regulate the bias in order to improve the internal force distribution of shear_torsion is concluded on the basis of analyzing and comparing the numeric results of typical calculated examples after and before requlation.
2006, 36(10): 36-38.
doi: 10.13204/j.gyjz200610011
Abstract:
In order to insure the seismic performance of an apartment RC building with 61 6m_high bottom story in the area of seismic fortification intensity 7, the frame_wall plan was adopted, in which RC shear walls were arranged at the ends of the building and bottom story. The seismic performance of the building was evaluated based on the static analysis under frequent earthquake, and the nonlinear time history analysis under rare earthquake was conducted. As a result, the lateral stiffness of the bottom story and the integral torsional stiffness of the building are increased, and the seismic performance of the building is improved due to arranging the shear walls, which meets the three_level criterion of the Seismic Code.
In order to insure the seismic performance of an apartment RC building with 61 6m_high bottom story in the area of seismic fortification intensity 7, the frame_wall plan was adopted, in which RC shear walls were arranged at the ends of the building and bottom story. The seismic performance of the building was evaluated based on the static analysis under frequent earthquake, and the nonlinear time history analysis under rare earthquake was conducted. As a result, the lateral stiffness of the bottom story and the integral torsional stiffness of the building are increased, and the seismic performance of the building is improved due to arranging the shear walls, which meets the three_level criterion of the Seismic Code.
2006, 36(10): 39-42.
doi: 10.13204/j.gyjz200610012
Abstract:
It is briefly introduced that some problems of the tall building basement design. Which are expounded from basement anti_floating, asymmetrical subsidence, structural over_length, foundation forms, calculating methods and design of civil air defence basement. It was proposed that several solutions based on economical analysis to deal with those problems.
It is briefly introduced that some problems of the tall building basement design. Which are expounded from basement anti_floating, asymmetrical subsidence, structural over_length, foundation forms, calculating methods and design of civil air defence basement. It was proposed that several solutions based on economical analysis to deal with those problems.
2006, 36(10): 43-45.
doi: 10.13204/j.gyjz200610013
Abstract:
A series of RC beams strengthened in flexure with CFRP plates were tested and studied. The test results showed that the CRFP plate reinforcement could highly increase the bending load capacity of the beam. Based on the testing results, the load_deformation process, flexural failure characteristics and the effect of various parameters on their behavior were all discussed.
A series of RC beams strengthened in flexure with CFRP plates were tested and studied. The test results showed that the CRFP plate reinforcement could highly increase the bending load capacity of the beam. Based on the testing results, the load_deformation process, flexural failure characteristics and the effect of various parameters on their behavior were all discussed.
2006, 36(10): 46-53.
doi: 10.13204/j.gyjz200610014
Abstract:
By means of half_space Mindlin. s elastic solutions and correspondence principle between elasticity and viscoelasticity, the viscoelastic solution of displacement, subjected to suddenly applied vertical force and given elastic volume strain and standard linear solid model distortion constitutive relations, is derived from the Laplace transform. The solutions in time domain is established by the inverse Laplace transform. Based on the viscoelastic solution of vertical displacement, the settlement formulas for the center and corner point of a flexible rectangular foundation made by homogeneous distributing load on rectangular area beneath the surface of ground are systematically inferred. A computation program is compiled based on the developed solutions. Finally, an example was g iven by making use of the presented method. The calculation results show that the new theory is feasible and applicable and can successfully predict the settlement of deeply buried foundation. And the results show that it is necessary to take account of viscoelasticity effect of semi_infinite half_space in the calculation of stress and displacement.
By means of half_space Mindlin. s elastic solutions and correspondence principle between elasticity and viscoelasticity, the viscoelastic solution of displacement, subjected to suddenly applied vertical force and given elastic volume strain and standard linear solid model distortion constitutive relations, is derived from the Laplace transform. The solutions in time domain is established by the inverse Laplace transform. Based on the viscoelastic solution of vertical displacement, the settlement formulas for the center and corner point of a flexible rectangular foundation made by homogeneous distributing load on rectangular area beneath the surface of ground are systematically inferred. A computation program is compiled based on the developed solutions. Finally, an example was g iven by making use of the presented method. The calculation results show that the new theory is feasible and applicable and can successfully predict the settlement of deeply buried foundation. And the results show that it is necessary to take account of viscoelasticity effect of semi_infinite half_space in the calculation of stress and displacement.
2006, 36(10): 54-56.
doi: 10.13204/j.gyjz200610015
Abstract:
First, the rule of the composite foundation settlement has been summarized; second, the Weibull model characteristic and applicability have been presented; last, using Weibull model, composite foundation settlement has been predicted and calculated based on engineering construction in practice and the observation data of the settlement. It shows that Weibull model is very applicable and has high precision, it can be a valuable basis for civil engineering design.
First, the rule of the composite foundation settlement has been summarized; second, the Weibull model characteristic and applicability have been presented; last, using Weibull model, composite foundation settlement has been predicted and calculated based on engineering construction in practice and the observation data of the settlement. It shows that Weibull model is very applicable and has high precision, it can be a valuable basis for civil engineering design.
2006, 36(10): 57-60.
doi: 10.13204/j.gyjz200610016
Abstract:
Root piles and chemical grouting are the combination of two reinforcing slope methods. Root piles offer anti_slide and anchor function for slope, and chemical grouting can improve soil shear strength efficiently. If the traditional limit balance is used to analyze the slope stabilized by root piles and chemical grouting, the evaluation result will not be accurate. According to the mechanism of root piles and chemical grouting to reinforce a slope, and the shear strength parameters of the composite of grouting and soil obtained by field test, a slope is simulated to analyze stability by strength reduction of FEM. The results show that strength reduction of FEM can not only reflect the mechanism of root piles and chemical grouting but also obtain safety factor and glide surface, hence adopting root piles and chemical grouting to reinforce and rehabilitate a slope is feasible.
Root piles and chemical grouting are the combination of two reinforcing slope methods. Root piles offer anti_slide and anchor function for slope, and chemical grouting can improve soil shear strength efficiently. If the traditional limit balance is used to analyze the slope stabilized by root piles and chemical grouting, the evaluation result will not be accurate. According to the mechanism of root piles and chemical grouting to reinforce a slope, and the shear strength parameters of the composite of grouting and soil obtained by field test, a slope is simulated to analyze stability by strength reduction of FEM. The results show that strength reduction of FEM can not only reflect the mechanism of root piles and chemical grouting but also obtain safety factor and glide surface, hence adopting root piles and chemical grouting to reinforce and rehabilitate a slope is feasible.
2006, 36(10): 61-64.
doi: 10.13204/j.gyjz200610017
Abstract:
Chloride deicers are referred to as deicing salt, which can thaw ice and produce severe corrosions to road, bridge, building, underground pipeline and car etc. Therefore, decreasing their corrosions is very important. The test mehtod is a key. It is discussed that relating test methods both at home and abroad.
Chloride deicers are referred to as deicing salt, which can thaw ice and produce severe corrosions to road, bridge, building, underground pipeline and car etc. Therefore, decreasing their corrosions is very important. The test mehtod is a key. It is discussed that relating test methods both at home and abroad.
2006, 36(10): 65-68.
doi: 10.13204/j.gyjz200610018
Abstract:
Through the experiments on freeze-thaw, it was studied the influence of the grade of concrete strength, the volume fraction of steel fiber and number of freeze-thaw circulation on the dynamic modulus of elasticity. The mechanism of peeling and damage of steel fiber reinforced concrete was analyzed and the compressive strongth, splitting strength and rupture strength of steel fiber reinforced concrete after freeze-thaw were tested. Furthermore, the reinforced mechanism of the steel fiber reinforced concrete under the action of freeze-thaw was discussed. The test results show that when the grade of concrete strength is higher, the influence of steel fiber volume fraction on the fros-t resisting property is more obvious, which can inhibit the peeling of the concrete and reduce its damage rate.
Through the experiments on freeze-thaw, it was studied the influence of the grade of concrete strength, the volume fraction of steel fiber and number of freeze-thaw circulation on the dynamic modulus of elasticity. The mechanism of peeling and damage of steel fiber reinforced concrete was analyzed and the compressive strongth, splitting strength and rupture strength of steel fiber reinforced concrete after freeze-thaw were tested. Furthermore, the reinforced mechanism of the steel fiber reinforced concrete under the action of freeze-thaw was discussed. The test results show that when the grade of concrete strength is higher, the influence of steel fiber volume fraction on the fros-t resisting property is more obvious, which can inhibit the peeling of the concrete and reduce its damage rate.
2006, 36(10): 69-71.
doi: 10.13204/j.gyjz200610019
Abstract:
Wind load is always the major or even the decisive load applied to long-span spatial structures, so much more attention is paid to dynamic response of reticulated shell structures under wind load. Systematic parameter analysis of windinduced response of three-way grid single-layer cylindrical reticulated shell structures has been performed with random simulation method in time domain, including geometric parameters, structural parameters and aerodynamic parameters. Moreover, the wind-induced vibration coefficient is obtained, which may be a reference for the wind-resistance design of reticulated shell structures.
Wind load is always the major or even the decisive load applied to long-span spatial structures, so much more attention is paid to dynamic response of reticulated shell structures under wind load. Systematic parameter analysis of windinduced response of three-way grid single-layer cylindrical reticulated shell structures has been performed with random simulation method in time domain, including geometric parameters, structural parameters and aerodynamic parameters. Moreover, the wind-induced vibration coefficient is obtained, which may be a reference for the wind-resistance design of reticulated shell structures.
2006, 36(10): 72-74.
doi: 10.13204/j.gyjz200610020
Abstract:
During the construction of the in-place structure of reinforced concrete, the tube-and-coupler formwork support is the most popular formwork support system. Currently, during the calculation of stability of the vertical pole of the support system, the effective length is the length of a segment. If the function of the cross direction support is seen as the function of a fasten restriction, there will be a great difference. It will be analyzed the influence of the cross direction support on the stability of the vertical pole based on the theory of stability.
During the construction of the in-place structure of reinforced concrete, the tube-and-coupler formwork support is the most popular formwork support system. Currently, during the calculation of stability of the vertical pole of the support system, the effective length is the length of a segment. If the function of the cross direction support is seen as the function of a fasten restriction, there will be a great difference. It will be analyzed the influence of the cross direction support on the stability of the vertical pole based on the theory of stability.
2006, 36(10): 75-78.
doi: 10.13204/j.gyjz200610021
Abstract:
Using the finite element method, the integral stability of the homemade rolled H-section beams is calculated and the applicability of the theoretical method in / Code for Design of Steel Structures0 (GB 50017-2003) is analyzed. It is indicated that the method offered by the code is conservative excessively for HW-section beams because the effect of major ax is curvature on beam stability is ignored. The formula of calculating stabilization coefficient of HW-section beams should be revised and a test should be carried out to testify the conclusion.
Using the finite element method, the integral stability of the homemade rolled H-section beams is calculated and the applicability of the theoretical method in / Code for Design of Steel Structures0 (GB 50017-2003) is analyzed. It is indicated that the method offered by the code is conservative excessively for HW-section beams because the effect of major ax is curvature on beam stability is ignored. The formula of calculating stabilization coefficient of HW-section beams should be revised and a test should be carried out to testify the conclusion.
2006, 36(10): 79-80.
doi: 10.13204/j.gyjz200610022
Abstract:
It was conducted the test of 16 concrete filled steel tubes (CFST) with different steel ratio under eccentric compression. The load-deformation curves and the ultimate loads of the samples were obtained. The formula of bearing capacity for CFST was also given based on twin shear unified strength theory. Good agreement was found between the experimental and the analytical values of the bearing capacity.
It was conducted the test of 16 concrete filled steel tubes (CFST) with different steel ratio under eccentric compression. The load-deformation curves and the ultimate loads of the samples were obtained. The formula of bearing capacity for CFST was also given based on twin shear unified strength theory. Good agreement was found between the experimental and the analytical values of the bearing capacity.
2006, 36(10): 81-85.
doi: 10.13204/j.gyjz200610023
Abstract:
Based on the definition of first internal forces, secondary internal forces and resultant internal forces of a prestressed concrete structure, it is indicated that the problems of analyzing modern prestressed concrete structures by current code; and the relevant solutions are also proposed. It will benefit the comprehension and application of prestressed reinforced concrete structures in engineering by researchers and designers.
Based on the definition of first internal forces, secondary internal forces and resultant internal forces of a prestressed concrete structure, it is indicated that the problems of analyzing modern prestressed concrete structures by current code; and the relevant solutions are also proposed. It will benefit the comprehension and application of prestressed reinforced concrete structures in engineering by researchers and designers.
2006, 36(10): 86-89.
doi: 10.13204/j.gyjz200610024
Abstract:
Since the promulgation of Technical Specification for Concrete Structures of Tall Building (JGJ 3-2002) in June, 2002, most of the engineers could keep on request of the specification in their projects. But there are some differences in using idiographic clause of the specification in every quarter because of lacking material operable way and different understanding of the specification in all quarters. There are local technical measures and specifications issued in Beijing, Shanghai and Guangdong based on local design experience and engineering practice. Technical Specification for Concrete Structures of Tall Building(JGJ 3-2002) and correlative materials, detailed rules for structural design in Beijing, Code for Seismic Design of Buildings of Shanghai and the complement of Technical Specification for Concrete Structures of Tall Building(JGJ 3-2002) in Guangdong are analyzed. And different understandings of the specification are discussed.Which provides a reference for revision of codes.
Since the promulgation of Technical Specification for Concrete Structures of Tall Building (JGJ 3-2002) in June, 2002, most of the engineers could keep on request of the specification in their projects. But there are some differences in using idiographic clause of the specification in every quarter because of lacking material operable way and different understanding of the specification in all quarters. There are local technical measures and specifications issued in Beijing, Shanghai and Guangdong based on local design experience and engineering practice. Technical Specification for Concrete Structures of Tall Building(JGJ 3-2002) and correlative materials, detailed rules for structural design in Beijing, Code for Seismic Design of Buildings of Shanghai and the complement of Technical Specification for Concrete Structures of Tall Building(JGJ 3-2002) in Guangdong are analyzed. And different understandings of the specification are discussed.Which provides a reference for revision of codes.
THE MINIMUM STEEL RATIO OF REINFORCED LIGHT-WEIGHT AGGREGATE CONCRETE MEMBER UNDER SHEAR AND TORSION
2006, 36(10): 90-92.
doi: 10.13204/j.gyjz200610025
Abstract:
According to determining condition of minimum steel ratio and achievements in research on ligh-t weight aggregate concrete structures, the calculation formulas of minimum steel ratio were derived from shear and torsion. It presented the basis for compiling / Technical Specification for Ligh-t Weight Aggregate Concrete Structures0.
According to determining condition of minimum steel ratio and achievements in research on ligh-t weight aggregate concrete structures, the calculation formulas of minimum steel ratio were derived from shear and torsion. It presented the basis for compiling / Technical Specification for Ligh-t Weight Aggregate Concrete Structures0.
2006, 36(10): 93-96.
doi: 10.13204/j.gyjz200610026
Abstract:
The storey-adding and reinforcement design method were discussed through the reconstructing of a building. Various methods were explored to deal with the deficiency of the colomncs strength. The critical factor was found out from comparing the adding shear ing wall, sticking steel plate and other methods. The reinforcement method and thought for this project were significative for the similar engineerings.
The storey-adding and reinforcement design method were discussed through the reconstructing of a building. Various methods were explored to deal with the deficiency of the colomncs strength. The critical factor was found out from comparing the adding shear ing wall, sticking steel plate and other methods. The reinforcement method and thought for this project were significative for the similar engineerings.
2006, 36(10): 97-100.
doi: 10.13204/j.gyjz200610027
Abstract:
It is introduced the deisgn of reinforcement and rebuilding of an old sickroom adding iatrical elevator in soft soil area, some logical structural measures were used to deal with the affiliation between the old building and the new building in this design, some successful experience may be used for similar rebuilding projects in the future.
It is introduced the deisgn of reinforcement and rebuilding of an old sickroom adding iatrical elevator in soft soil area, some logical structural measures were used to deal with the affiliation between the old building and the new building in this design, some successful experience may be used for similar rebuilding projects in the future.
2006, 36(10): 101-103.
doi: 10.13204/j.gyjz200610028
Abstract:
According to a practical project and with a view to the relations between the newly-added steel girder and the original concrete column, it is introduced a girder-concrete joint, which is analysed through different models.
According to a practical project and with a view to the relations between the newly-added steel girder and the original concrete column, it is introduced a girder-concrete joint, which is analysed through different models.
2006, 36(10): 104-106.
doi: 10.13204/j.gyjz200610029
Abstract:
It is summarized that the recent research advances on flexural strengthening with NSM FRP and presented the formula predicting flexural capacity of the failure modes with the assumption of plane section. By comparison, the predictions agree well with the experimental results, which provides a reference for practical engineering application.
It is summarized that the recent research advances on flexural strengthening with NSM FRP and presented the formula predicting flexural capacity of the failure modes with the assumption of plane section. By comparison, the predictions agree well with the experimental results, which provides a reference for practical engineering application.
2006, 36(10): 107-108.
doi: 10.13204/j.gyjz200610030
Abstract:
The underground garage of Ningbo South Railway Station Square is a demonstration project of the new technology implementation in Ningbo. It is presentsed the experience in design and construction of the garage, and some design and calculation characteristics of the underground garage are also summarized. The corresponding technical measures are used in design and construction procedures, from which good technical and economic benefits have been obtained, and the technical measures and research results provide reference for readers.
The underground garage of Ningbo South Railway Station Square is a demonstration project of the new technology implementation in Ningbo. It is presentsed the experience in design and construction of the garage, and some design and calculation characteristics of the underground garage are also summarized. The corresponding technical measures are used in design and construction procedures, from which good technical and economic benefits have been obtained, and the technical measures and research results provide reference for readers.
