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2006 Vol. 36, No. 9
Display Method:
2006, 36(9): 1-5.
Abstract:
The theory of performance-based seismic design(PBSD) is a new philosophy and was proposed in 1990s in earthquake engineering,which is a milestone in the modern seismic design procedures.It is illustrated that the background,the basic conceptions,main characteristics of PBSD.Further,the analytical and design methods of PBSD are systematically stated.By the comparison of PBSD with the traditional seismic deign,the differences between the two theories have been addressed.
The theory of performance-based seismic design(PBSD) is a new philosophy and was proposed in 1990s in earthquake engineering,which is a milestone in the modern seismic design procedures.It is illustrated that the background,the basic conceptions,main characteristics of PBSD.Further,the analytical and design methods of PBSD are systematically stated.By the comparison of PBSD with the traditional seismic deign,the differences between the two theories have been addressed.
2006, 36(9): 6-10.
Abstract:
For critical buildings, due to the special shape demands, the structural layouts often become irregular. On the other hand, because of the importance of their function, the seismic design criterion of these buildings is higher than normal ones. The designer of structure usually encounters difficulty and challenge in the seismic design. Two approaches to improve the seismic performance of buildings were presented: One is to reallocate the bending stiffness of the local structural members in order to make the distribution of structural stiffness uniform inherently though the appearance is irregular. The other is to add some oil dampers to buildings, which may provide additional damping for structures. The analysis results indicated that the structural seismic performance could be obviously enhanced due to adoption of above approaches, and the sections of structural members ( column, beam) could be reduced, and then to get better cost performance.
For critical buildings, due to the special shape demands, the structural layouts often become irregular. On the other hand, because of the importance of their function, the seismic design criterion of these buildings is higher than normal ones. The designer of structure usually encounters difficulty and challenge in the seismic design. Two approaches to improve the seismic performance of buildings were presented: One is to reallocate the bending stiffness of the local structural members in order to make the distribution of structural stiffness uniform inherently though the appearance is irregular. The other is to add some oil dampers to buildings, which may provide additional damping for structures. The analysis results indicated that the structural seismic performance could be obviously enhanced due to adoption of above approaches, and the sections of structural members ( column, beam) could be reduced, and then to get better cost performance.
2006, 36(9): 11-13.
Abstract:
The energy dissipation braced-frame system which is one of the passive control techniques has been applied wildly in civil engineering. As yet, the finite element analysis method which requires complex calculation process for this structure system is not easy for civil engineer to handle and limits the further application of this system. So it is necess ary to perfect the utility des ign method. The laws of the distribution of internal for ces subjected to horizontal seismic action were dis cussed and a truss model of calculating was s et up.
The energy dissipation braced-frame system which is one of the passive control techniques has been applied wildly in civil engineering. As yet, the finite element analysis method which requires complex calculation process for this structure system is not easy for civil engineer to handle and limits the further application of this system. So it is necess ary to perfect the utility des ign method. The laws of the distribution of internal for ces subjected to horizontal seismic action were dis cussed and a truss model of calculating was s et up.
2006, 36(9): 14-16.
Abstract:
It is introduced the appraisal method for earthquake- resistant capability of reinforced concrete frame construction based on theory of intensity and toughness, and is also presented a ser ies of operating process es to evaluate earthquakeres istant capability. The main functions and ideals of program are introduced detailedly. From the applied illustrations, it can clearly be seen that the H uman- Computer Interaction Program that is integrated with China code for aseismic design of buildings and ETABS software can not only evaluate quantitatively the earthquake- resistant capability of buildings but also find out the causation to beget shortage from res ults . Which provides a new thought for evaluating quantitatively the earthquake- res istant capability of buildings .
It is introduced the appraisal method for earthquake- resistant capability of reinforced concrete frame construction based on theory of intensity and toughness, and is also presented a ser ies of operating process es to evaluate earthquakeres istant capability. The main functions and ideals of program are introduced detailedly. From the applied illustrations, it can clearly be seen that the H uman- Computer Interaction Program that is integrated with China code for aseismic design of buildings and ETABS software can not only evaluate quantitatively the earthquake- resistant capability of buildings but also find out the causation to beget shortage from res ults . Which provides a new thought for evaluating quantitatively the earthquake- res istant capability of buildings .
2006, 36(9): 17-21.
Abstract:
It is summarized that the passive energy dissipation systems of mild steel damper, including the studies and applications of the new techniques both at home and abroad; the performance, design methods and codes of structure systems with energy dissipaters. Some problems to be further studied are presented.
It is summarized that the passive energy dissipation systems of mild steel damper, including the studies and applications of the new techniques both at home and abroad; the performance, design methods and codes of structure systems with energy dissipaters. Some problems to be further studied are presented.
2006, 36(9): 22-23.
Abstract:
The isolation of horizontal ground motion is usually considered in a base isolation. However, the influence of vertical ground motion is considered insufficiently . The disk springs are installed on the rubber bearing. The method of determining isolation layer parameter and mechanical models are also given. The vertical isolation effect of the new system is remarkable by analyzing examples.
The isolation of horizontal ground motion is usually considered in a base isolation. However, the influence of vertical ground motion is considered insufficiently . The disk springs are installed on the rubber bearing. The method of determining isolation layer parameter and mechanical models are also given. The vertical isolation effect of the new system is remarkable by analyzing examples.
2006, 36(9): 24-29.
Abstract:
If the displacement of rubber bearing of base- isolated buildings, which is usually caused by some what resonance effect from long period ground motion, the additional stiffness components will work together with rubber bearings and then the possibility of further increase of the displacement of rubber bearing is suppressed and reaches the prescribed limitation because the natural period of the base isolation building has been changed. However the extra stiffness would let the story shear forces of the super-structure slightly increase. A mult-i particle structural analytic model is set up. The motion equations of three states of non- affixation, right affixation and left affixation are deduced, and the computer program is developed. On the basis of exemplary analysis for typical base- isolated building , the effectiveness of the device in limitation of developing large lateral displacement of rubber bearing is demonstrated and the way of choosing appropriate parameters for the protective device is discussed.
If the displacement of rubber bearing of base- isolated buildings, which is usually caused by some what resonance effect from long period ground motion, the additional stiffness components will work together with rubber bearings and then the possibility of further increase of the displacement of rubber bearing is suppressed and reaches the prescribed limitation because the natural period of the base isolation building has been changed. However the extra stiffness would let the story shear forces of the super-structure slightly increase. A mult-i particle structural analytic model is set up. The motion equations of three states of non- affixation, right affixation and left affixation are deduced, and the computer program is developed. On the basis of exemplary analysis for typical base- isolated building , the effectiveness of the device in limitation of developing large lateral displacement of rubber bearing is demonstrated and the way of choosing appropriate parameters for the protective device is discussed.
2006, 36(9): 30-32.
Abstract:
Based on the analysis of damper movement during load test period, a concept for the dissipation power of damper is suggested. Comparing with the traditional method using hysteretic loop, the method of dissipation power seems obviously more useful when assessing the capacity of dampercs power dissipation. After analyzing the difference of dampercs energy dissipation, between two waveshapes of a simple loop load test, a comprehensive method for the capacity assessment of dampercs power dissipation is suggested.
Based on the analysis of damper movement during load test period, a concept for the dissipation power of damper is suggested. Comparing with the traditional method using hysteretic loop, the method of dissipation power seems obviously more useful when assessing the capacity of dampercs power dissipation. After analyzing the difference of dampercs energy dissipation, between two waveshapes of a simple loop load test, a comprehensive method for the capacity assessment of dampercs power dissipation is suggested.
2006, 36(9): 33-35.
Abstract:
After analyzing the simple cyclic loading test, a concept of loading test with random process is suggested. As for certain power spectrum and displacement, one stochastic process is simulated and used into servo- dynamic test system. On the other hand, the condition of varying power spectrum and displacement is also considered. For analyzing the result of random test, the methods of equivalent stiffness, equivalent damping coefficient based on statistics are prompted. The random testing method resolved the coupling between loading velocity and frequency, and also simplified the assorting of loading circumstance. M eanwhile, the random testing method achieved the dynamic test for instantaneous characteristic of the specimen. As for other specimen such as rubber isolator, this method also has an advantage of utilization.
After analyzing the simple cyclic loading test, a concept of loading test with random process is suggested. As for certain power spectrum and displacement, one stochastic process is simulated and used into servo- dynamic test system. On the other hand, the condition of varying power spectrum and displacement is also considered. For analyzing the result of random test, the methods of equivalent stiffness, equivalent damping coefficient based on statistics are prompted. The random testing method resolved the coupling between loading velocity and frequency, and also simplified the assorting of loading circumstance. M eanwhile, the random testing method achieved the dynamic test for instantaneous characteristic of the specimen. As for other specimen such as rubber isolator, this method also has an advantage of utilization.
2006, 36(9): 36-38.
Abstract:
The study on the buildingsc capacity in old area of a city is a system engineering which deals with a wide area. It is analysed that the factors which effect the buildingsc capacity in old area of city. It is also put forward the method to confirm the buildingsc capacity and the developing intensity, which is based on the estimate for parking capacity. Which can provide a guide to exploitation, protection and the sustainable development in old area of city.
The study on the buildingsc capacity in old area of a city is a system engineering which deals with a wide area. It is analysed that the factors which effect the buildingsc capacity in old area of city. It is also put forward the method to confirm the buildingsc capacity and the developing intensity, which is based on the estimate for parking capacity. Which can provide a guide to exploitation, protection and the sustainable development in old area of city.
2006, 36(9): 39-42.
Abstract:
Opening and closing an urban space in an orderly way can make a city be full of vigour and vitality. The urban space should be an exchange place between men, that between men and society and also the one between men and nature;therefore cities can construct active spaces of human nature for people.
Opening and closing an urban space in an orderly way can make a city be full of vigour and vitality. The urban space should be an exchange place between men, that between men and society and also the one between men and nature;therefore cities can construct active spaces of human nature for people.
2006, 36(9): 43-45.
Abstract:
Based on field tests and elastic- plastic FEM, the paper has a comparative study on the bearing capacity per volume of bored- cas-t place piles. The comparative study include equa-l diameter pile and equa-l diameter pile, equa-l diameter pile and tapered pile, tapered pile and tapered pile, equa-l diameter pile and belled pile, belled pile and belled pile. The results show that the bearing capacity per volume of pile is not all higher when its bearing capacity is higher. The bearing capacity per volume of tapered pile and belled pile are comparatively better. The bearing capacity per volume of short and thick tapered pile is better than long and slender tapered pilecs. Expect for especial circumstance, the belled diameter of belled pile and the diameter of equa-l diameter pile should not be big excessively. The rational selection of geometry dimension of pile is essential after the type of pile is confirmed. The measures of pouring slurry in pile end, making pile puncture into better bearing layer, cleaning out sediment of hole bottom can improve the bearing capacity per volume of a pile.
Based on field tests and elastic- plastic FEM, the paper has a comparative study on the bearing capacity per volume of bored- cas-t place piles. The comparative study include equa-l diameter pile and equa-l diameter pile, equa-l diameter pile and tapered pile, tapered pile and tapered pile, equa-l diameter pile and belled pile, belled pile and belled pile. The results show that the bearing capacity per volume of pile is not all higher when its bearing capacity is higher. The bearing capacity per volume of tapered pile and belled pile are comparatively better. The bearing capacity per volume of short and thick tapered pile is better than long and slender tapered pilecs. Expect for especial circumstance, the belled diameter of belled pile and the diameter of equa-l diameter pile should not be big excessively. The rational selection of geometry dimension of pile is essential after the type of pile is confirmed. The measures of pouring slurry in pile end, making pile puncture into better bearing layer, cleaning out sediment of hole bottom can improve the bearing capacity per volume of a pile.
2006, 36(9): 46-49.
Abstract:
Three squeezed branch piles are tested in collapsible loess foundation after prewetting processing. The results indicate that the load transfer law of squeezed branch pile is similar to that in the ordinary soil, the velocity of loadsettlement curve changes slowly and the pile has high load bearing capacity, the principle of load transfer has apparently sequence. The results may provide a basis for the use of squeezed branch piles in collapsible loess foundation.
Three squeezed branch piles are tested in collapsible loess foundation after prewetting processing. The results indicate that the load transfer law of squeezed branch pile is similar to that in the ordinary soil, the velocity of loadsettlement curve changes slowly and the pile has high load bearing capacity, the principle of load transfer has apparently sequence. The results may provide a basis for the use of squeezed branch piles in collapsible loess foundation.
2006, 36(9): 50-52.
Abstract:
Studying the dynamic characteristics of sandy pebble soil by using the dynamic triaxial tests, it is discovered that the varying regulation of the dynamic strength and modulus of sandy pebble soil under different radial pressure and consolidation stress ratio . The result shows that radial pressure obviously effect the dynamic strength and modulus, it is also big that the change of dynamic strength and modulus under different consolidation stress ratio.
Studying the dynamic characteristics of sandy pebble soil by using the dynamic triaxial tests, it is discovered that the varying regulation of the dynamic strength and modulus of sandy pebble soil under different radial pressure and consolidation stress ratio . The result shows that radial pressure obviously effect the dynamic strength and modulus, it is also big that the change of dynamic strength and modulus under different consolidation stress ratio.
2006, 36(9): 53-56.
Abstract:
Foundation treatment is an important link for large oil tank engineering. It is introduced the treatment effectiveness of 50 000 m3 oil tank foundation, which sits on soft soil and improved with stone columns. Based on the testing settlement data, settlement properties of ring wall foundation and oil tank center foundation are individually discussed during filling water preload, and Poison method is used to forecast the ultimate settlement of the ring wall foundation. Nonhomogeneos deformation at the end of water filling preload is also analyzed. All conclusions will provide a basis for the reinforcement of the oil tank foundation.
Foundation treatment is an important link for large oil tank engineering. It is introduced the treatment effectiveness of 50 000 m3 oil tank foundation, which sits on soft soil and improved with stone columns. Based on the testing settlement data, settlement properties of ring wall foundation and oil tank center foundation are individually discussed during filling water preload, and Poison method is used to forecast the ultimate settlement of the ring wall foundation. Nonhomogeneos deformation at the end of water filling preload is also analyzed. All conclusions will provide a basis for the reinforcement of the oil tank foundation.
2006, 36(9): 57-61.
Abstract:
Water penetration test, improved rapid chloride ion penetration test and dichloromethane immersion test were used to measure the permeability of concrete specimens with different strength grades and mixing proportions. The results indicated that restrained effects on the concrete structures in field engineering were not considered in the water penetration test, whose application was strongly dependent upon the strength grade of concrete. The defects mentioned above were avoided in improved rapid chloride ion penetration test and dichloromethane immersion test. Good correlation between the results of improved rapid chloride ion penetration test and dichloromethane immersion test was presented.
Water penetration test, improved rapid chloride ion penetration test and dichloromethane immersion test were used to measure the permeability of concrete specimens with different strength grades and mixing proportions. The results indicated that restrained effects on the concrete structures in field engineering were not considered in the water penetration test, whose application was strongly dependent upon the strength grade of concrete. The defects mentioned above were avoided in improved rapid chloride ion penetration test and dichloromethane immersion test. Good correlation between the results of improved rapid chloride ion penetration test and dichloromethane immersion test was presented.
2006, 36(9): 62-67.
Abstract:
Six sorts of deformed steel fibers ( DSF) dosaging 01 5% or 11 0% by bulk are used to prepare CF30 and CF50 deformed steel fiber ( DSF ) reinforced concretes. The experiment results indicate that not only the flexural strength , shearing strength, splitting tensile strength and flexural properties of deformed steel fiber reinforced concrete ( DSFRC) are significantly improved as compared with normal concrete, but also the drying shrinkage value and early plastic cracking are obviously decreased, and the modification effect of DSFs with different characteristics are different1 The results also indicate that the method of calculating fiber concretec s capability coefficients in / Test Method of Steel Fiber Reinforced Concrete0 ( CECS 13B 89) has deviation1
Six sorts of deformed steel fibers ( DSF) dosaging 01 5% or 11 0% by bulk are used to prepare CF30 and CF50 deformed steel fiber ( DSF ) reinforced concretes. The experiment results indicate that not only the flexural strength , shearing strength, splitting tensile strength and flexural properties of deformed steel fiber reinforced concrete ( DSFRC) are significantly improved as compared with normal concrete, but also the drying shrinkage value and early plastic cracking are obviously decreased, and the modification effect of DSFs with different characteristics are different1 The results also indicate that the method of calculating fiber concretec s capability coefficients in / Test Method of Steel Fiber Reinforced Concrete0 ( CECS 13B 89) has deviation1
2006, 36(9): 68-70.
Abstract:
Layered steel fiber( LSFRC ) and layered hybrid fibers reinforced concretes ( LHFRC) are new structure forms for fiber reinforced concrete, which is on the basis of considering economy and improvement of material properties, letting steel fiber layer distributing layer by layer, or synthesis fiber three- dimensional distributing additionally. The study group had studied on fatigue properties of LSFRC and LHFRC for years. As a kind of pavement material, studying its fatigue properties absolutely is the premise of this new composite material becoming extensive use. Fatigue properties were reviewed associating the achievements of the study group, in addition, some achievements and the developing trends of this subj ect were also discussed.
Layered steel fiber( LSFRC ) and layered hybrid fibers reinforced concretes ( LHFRC) are new structure forms for fiber reinforced concrete, which is on the basis of considering economy and improvement of material properties, letting steel fiber layer distributing layer by layer, or synthesis fiber three- dimensional distributing additionally. The study group had studied on fatigue properties of LSFRC and LHFRC for years. As a kind of pavement material, studying its fatigue properties absolutely is the premise of this new composite material becoming extensive use. Fatigue properties were reviewed associating the achievements of the study group, in addition, some achievements and the developing trends of this subj ect were also discussed.
2006, 36(9): 71-74.
Abstract:
The failure mode, ductility, hysteretic characteristics and shear property of the joints are studied by the tests for five frame joints of concrete- filled steel tubular core columns and prestressed concrete beams . The experimental results indicate that the construction methods are feas ible and safe, and such joints have good ductility and good energy dissipation. With the concrete- filled steel tube core columns, the shear bearing capacity of core area of joints can be raised greatly.
The failure mode, ductility, hysteretic characteristics and shear property of the joints are studied by the tests for five frame joints of concrete- filled steel tubular core columns and prestressed concrete beams . The experimental results indicate that the construction methods are feas ible and safe, and such joints have good ductility and good energy dissipation. With the concrete- filled steel tube core columns, the shear bearing capacity of core area of joints can be raised greatly.
2006, 36(9): 75-76.
Abstract:
Based on the three s orts of two-way s labs , which s pans are 6m @ 6m、71 2m @ 71 2m、 81 4m@ 81 4m, a form that is equivalence load value when partition wall acts on two-way slab has been finished by finite element analysis , the form will be used by engineers.
Based on the three s orts of two-way s labs , which s pans are 6m @ 6m、71 2m @ 71 2m、 81 4m@ 81 4m, a form that is equivalence load value when partition wall acts on two-way slab has been finished by finite element analysis , the form will be used by engineers.
2006, 36(9): 77-80.
Abstract:
Dependence of tension in membranes on the corresponding ultrasonic velocity and effects of radial tensionP weft tension ratio on the test results of ultrasonic method were investigated. Standard curves were founded and a modificatory method was presented. Results show that membrane tensions can be conveniently determined by ultrasonic method with sufficient precision. The relative average deviations after modification can be reduced to 151.50% , or even less than 10% , which can fully meet the technical requirements of engineering testings.
Dependence of tension in membranes on the corresponding ultrasonic velocity and effects of radial tensionP weft tension ratio on the test results of ultrasonic method were investigated. Standard curves were founded and a modificatory method was presented. Results show that membrane tensions can be conveniently determined by ultrasonic method with sufficient precision. The relative average deviations after modification can be reduced to 151.50% , or even less than 10% , which can fully meet the technical requirements of engineering testings.
2006, 36(9): 81-83,110.
Abstract:
An experimental research on 12 full size specimens of CFT- steel beam space joint with outer concentric annularstiffer. Tested the joint stiffness based on0 deflection method0 , and analyzed the factors that affect joint stiffness according to the test results. In the end, the paper indicated that the joint with outer concentric annular- stiffer can be used as rigid joint, but this must suffice to a certain condition, i. e. the outer concentric annular- stiffer must have enough stiffness. In addition, this kind joint has obvious space characteristic.
An experimental research on 12 full size specimens of CFT- steel beam space joint with outer concentric annularstiffer. Tested the joint stiffness based on0 deflection method0 , and analyzed the factors that affect joint stiffness according to the test results. In the end, the paper indicated that the joint with outer concentric annular- stiffer can be used as rigid joint, but this must suffice to a certain condition, i. e. the outer concentric annular- stiffer must have enough stiffness. In addition, this kind joint has obvious space characteristic.
2006, 36(9): 84-86.
Abstract:
To overcome the weakness in restriction of SCFT compared to common CFT, it is presented a composite reinforced SCFT column, which improves the buckling strength of the steel wall and the restriction to concrete by reinforcing ribs. Because of the strait construction space, full_seal between ribs and tube is difficult. It is also proposed a new method of / point seal0 , the modal of buckling is analyzed and the number or space of seal points is given.
To overcome the weakness in restriction of SCFT compared to common CFT, it is presented a composite reinforced SCFT column, which improves the buckling strength of the steel wall and the restriction to concrete by reinforcing ribs. Because of the strait construction space, full_seal between ribs and tube is difficult. It is also proposed a new method of / point seal0 , the modal of buckling is analyzed and the number or space of seal points is given.
2006, 36(9): 87-89.
Abstract:
Because of the designing deficiencies or function change, some buildings need to be rehabilitated and strengthened. It is introduced the application of steel_concrete composite beam in rehabilitation and strengthening of a building in Beij ing. The practice has showed that using steel_concrete composite beam can achieve flexible joint treatment and larger ratio of span to height than the other beams, thus reducing the height of a floor and self_weight, as well as increasing the clear height of a flour. In addition, it can simplify the construction procedure and shorten the construction time.
Because of the designing deficiencies or function change, some buildings need to be rehabilitated and strengthened. It is introduced the application of steel_concrete composite beam in rehabilitation and strengthening of a building in Beij ing. The practice has showed that using steel_concrete composite beam can achieve flexible joint treatment and larger ratio of span to height than the other beams, thus reducing the height of a floor and self_weight, as well as increasing the clear height of a flour. In addition, it can simplify the construction procedure and shorten the construction time.
2006, 36(9): 90-91.
Abstract:
The provisions of assessing the compressive strength of concrete are described. The provisions of the standards including ACI- 318 and EN 206- 1 are compared, and the differences between the standards were also analysised, at last several recommendations are put forward for the amendment of/ Standands of Inspection and Assessment for Strength0 ( GBJ107- 87) .
The provisions of assessing the compressive strength of concrete are described. The provisions of the standards including ACI- 318 and EN 206- 1 are compared, and the differences between the standards were also analysised, at last several recommendations are put forward for the amendment of/ Standands of Inspection and Assessment for Strength0 ( GBJ107- 87) .
2006, 36(9): 92-94.
Abstract:
The extension_story design of a framed office building is introduced, including strengthening methods by increasing section area and enwrapping steel, as well as the connecting approaches of elongating columns and extending stairs. Some key points in the design work are discussed, which can be applied to similar projects.
The extension_story design of a framed office building is introduced, including strengthening methods by increasing section area and enwrapping steel, as well as the connecting approaches of elongating columns and extending stairs. Some key points in the design work are discussed, which can be applied to similar projects.
2006, 36(9): 95-97.
Abstract:
In continued construction of tall building, the local high elevation transfer is usually used to meet the requirements of usage changes. According to actual conditions, some fundamentals and details of seismic design were presented. Engineering practice and calculation results by theory show that local high elevation transfer is reasonable and feasible, and can realize the aim of security, reliability and economy.
In continued construction of tall building, the local high elevation transfer is usually used to meet the requirements of usage changes. According to actual conditions, some fundamentals and details of seismic design were presented. Engineering practice and calculation results by theory show that local high elevation transfer is reasonable and feasible, and can realize the aim of security, reliability and economy.
2006, 36(9): 98-56,.
Abstract:
Along with the raising of functional requirements, the open- reconstruction of bearing wall in existing brick- concrete building becomes more frequently. It is introduced a method that installing rectangular reinforced concrete frame with wing. This method is safe, reliable and convenient. By comparison, it has a distinct improvement on stress concentration to the one with rectangular frame only.Which may be a reference for similar engineerings.
Along with the raising of functional requirements, the open- reconstruction of bearing wall in existing brick- concrete building becomes more frequently. It is introduced a method that installing rectangular reinforced concrete frame with wing. This method is safe, reliable and convenient. By comparison, it has a distinct improvement on stress concentration to the one with rectangular frame only.Which may be a reference for similar engineerings.
2006, 36(9): 100-101,88.
Abstract:
Three types of strengthening schemes designed for the original roof of Suifenhe Qingyun Market are analyzed and compared. Design and construction essentials of the scheme adopted are presented. It can be served as reference when strengthening similar project.
Three types of strengthening schemes designed for the original roof of Suifenhe Qingyun Market are analyzed and compared. Design and construction essentials of the scheme adopted are presented. It can be served as reference when strengthening similar project.
2006, 36(9): 102-103.
Abstract:
An establishment of a construction proposal P approach is formed through interactive restraint of internal functions and external environment of the construction. The formation of a construction scheme is based on a procedure of logicality, rationality and consistent thinking. According to the extension scheme ( phase-Ⅱ) of Donghang Jinjiang Hotel, it is introduced how to establish a scheme through specific, fundamental environment as well as the funtions of a construction.
An establishment of a construction proposal P approach is formed through interactive restraint of internal functions and external environment of the construction. The formation of a construction scheme is based on a procedure of logicality, rationality and consistent thinking. According to the extension scheme ( phase-Ⅱ) of Donghang Jinjiang Hotel, it is introduced how to establish a scheme through specific, fundamental environment as well as the funtions of a construction.
2006, 36(9): 104-105.
Abstract:
Both energy conservation and environmental protection are the consistent policy of Germany government. In Germany, special attention is paid to energy conservation in building . In C hina, energy conservation in building becomes encouraged by the government. It is concluded that the pattern and idea of building design should be reformed; new technology be used, as well as the combination of architectural technology with its art should also be carried out.
Both energy conservation and environmental protection are the consistent policy of Germany government. In Germany, special attention is paid to energy conservation in building . In C hina, energy conservation in building becomes encouraged by the government. It is concluded that the pattern and idea of building design should be reformed; new technology be used, as well as the combination of architectural technology with its art should also be carried out.
