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2007 Vol. 37, No. 11
Display Method:
2007, 37(11): 1-4,8.
doi: 10.13204/j.gyjz200711001
Abstract:
Along with the development of society, and the progress of technology, people no longer satisfies with the monotonous industrial architecture form, diversification becomes an inevitable trend.It is introduced that two extreme types of industrial architecture form the design under the guidance of minimal thinking and that of incomplete shape thinking, in order to stimulate architect s creativity, and seek the possibility of industrial architecture form together.The introduction of one or two sides is not the target, but a method, diversification is the finial goal.
Along with the development of society, and the progress of technology, people no longer satisfies with the monotonous industrial architecture form, diversification becomes an inevitable trend.It is introduced that two extreme types of industrial architecture form the design under the guidance of minimal thinking and that of incomplete shape thinking, in order to stimulate architect s creativity, and seek the possibility of industrial architecture form together.The introduction of one or two sides is not the target, but a method, diversification is the finial goal.
2007, 37(11): 5-8.
doi: 10.13204/j.gyjz200711002
Abstract:
It is very important of the industrial architecture in the economic and urban development.Recently industrial architectures have developed quickly with many new characteristics.It is an important issue in reality to explore the image design of the industrial architecture.
It is very important of the industrial architecture in the economic and urban development.Recently industrial architectures have developed quickly with many new characteristics.It is an important issue in reality to explore the image design of the industrial architecture.
2007, 37(11): 9-11,24.
doi: 10.13204/j.gyjz200711003
Abstract:
With the development of the modern industry, the design of the industrial architecture is accordingly developed. As an important type of industrial architecture, more and more concern is given to the design of an industrial garden.With the illustration of the programming and architectural design of Holley Group Meter Industrial Garden, it is analyzed how to find a suitable solution for the various requirements such as natural environment, architectural innovation, enterprise figure, space arrangement in the design of an industrial garden.
With the development of the modern industry, the design of the industrial architecture is accordingly developed. As an important type of industrial architecture, more and more concern is given to the design of an industrial garden.With the illustration of the programming and architectural design of Holley Group Meter Industrial Garden, it is analyzed how to find a suitable solution for the various requirements such as natural environment, architectural innovation, enterprise figure, space arrangement in the design of an industrial garden.
2007, 37(11): 12-15.
doi: 10.13204/j.gyjz200711004
Abstract:
With the continuously developing of production process, logistic organization, quality control and enterprise management level in a modern car manufacture factory, the requirements for shop building are also higher and higher.Based on the design practice of engineering project of No.3 plant of Shanghai Volkswagen Automotive Co., Ltd.that has been awarded the National Excellent Engineering Design Gold Prize, through the description of integrated shop building with large span, large area and large space from many aspects such as design idea, fa ade style, interior and exterior environmental creation, energy-saving and environment protection etc.The design features of the large-scale main building of the plant are displayed, which might be useful to the same trade.
With the continuously developing of production process, logistic organization, quality control and enterprise management level in a modern car manufacture factory, the requirements for shop building are also higher and higher.Based on the design practice of engineering project of No.3 plant of Shanghai Volkswagen Automotive Co., Ltd.that has been awarded the National Excellent Engineering Design Gold Prize, through the description of integrated shop building with large span, large area and large space from many aspects such as design idea, fa ade style, interior and exterior environmental creation, energy-saving and environment protection etc.The design features of the large-scale main building of the plant are displayed, which might be useful to the same trade.
2007, 37(11): 16-19,31.
doi: 10.13204/j.gyjz200711005
Abstract:
The comprehensive treatment of urban domestic refuses by principles of / no harm, decrement and reclamation0 has become the main trend.When selecting the site of an incinerator, whose needs should be met by the planning and design.Meanwhile attention should be paid to the influence on its peripheric environment, so as to construct an ecological industrial environment.
The comprehensive treatment of urban domestic refuses by principles of / no harm, decrement and reclamation0 has become the main trend.When selecting the site of an incinerator, whose needs should be met by the planning and design.Meanwhile attention should be paid to the influence on its peripheric environment, so as to construct an ecological industrial environment.
2007, 37(11): 20-24.
doi: 10.13204/j.gyjz200711006
Abstract:
There was the first industrial estate in Liwan District of Guangzhou in 1930s, of which the cemen factory was the forerunner in latter-day industry development.Now, the area is near the developing downtown, how to continue the context of the city culture, to make commerce activity is the key after the movement of the factory in the district.With the idea to continue the context, create new city lifestyle, build new city space and new city value, it is analysed the trend of rebuilding and reusing industrial buildings to offer a development mode for utilization replacement in old factory and regeneration of the old city, brings out an executive project to rebuild and reuse industry buildings.
There was the first industrial estate in Liwan District of Guangzhou in 1930s, of which the cemen factory was the forerunner in latter-day industry development.Now, the area is near the developing downtown, how to continue the context of the city culture, to make commerce activity is the key after the movement of the factory in the district.With the idea to continue the context, create new city lifestyle, build new city space and new city value, it is analysed the trend of rebuilding and reusing industrial buildings to offer a development mode for utilization replacement in old factory and regeneration of the old city, brings out an executive project to rebuild and reuse industry buildings.
2007, 37(11): 25-28.
doi: 10.13204/j.gyjz200711007
Abstract:
Based on pointing out the necessity of renewing the industrial areas in a city ( RIAIC), it is expounded systematically the immediate significance, the method and tactics, the design concept of sustainable development of the drive by planning of RIAIC, which are used in the design of Tianjin Tractor Factory area.It is briefly introduced that the design concept and the construction of area characteristics in a city
Based on pointing out the necessity of renewing the industrial areas in a city ( RIAIC), it is expounded systematically the immediate significance, the method and tactics, the design concept of sustainable development of the drive by planning of RIAIC, which are used in the design of Tianjin Tractor Factory area.It is briefly introduced that the design concept and the construction of area characteristics in a city
2007, 37(11): 29-31.
doi: 10.13204/j.gyjz200711008
Abstract:
The construction of a development area must take the road of intensive land, thus the standardized multistory mill buildings are the necessary road of developing the industrial mill buildings in high tech development areas.The multistory mill buildings with characteristics and merits will become the main buildings in high tech development areas.
The construction of a development area must take the road of intensive land, thus the standardized multistory mill buildings are the necessary road of developing the industrial mill buildings in high tech development areas.The multistory mill buildings with characteristics and merits will become the main buildings in high tech development areas.
2007, 37(11): 32-33,60.
doi: 10.13204/j.gyjz200711009
Abstract:
It is explored that the new ideas of designing and constructing multi storey mill buildings without windows on condition of less cultivable land in China, by way of reforming No.3 National CottonMill in Wuxi.As a result, more land will be saved and more textile factories constructed in coastal areas and southern areas.
It is explored that the new ideas of designing and constructing multi storey mill buildings without windows on condition of less cultivable land in China, by way of reforming No.3 National CottonMill in Wuxi.As a result, more land will be saved and more textile factories constructed in coastal areas and southern areas.
2007, 37(11): 34-37.
doi: 10.13204/j.gyjz200711010
Abstract:
It is proposed an integral model to analyze the seismic response of a large-scale thermal power plant s main building with frame-bent in the transverse direction and frame-shear wall in the longitudinal direction under three certain seismic waves.The following subjects are concerned: the space model, the dynamic properties, the layer displacement, the interlayer deformation and layer shear, and compared the calculation result of the plant model with space model.The spatial effect ratio and adjusting coefficient of space structure were suggested, and the spatial effect was very obvious.Designing of the eccentric and irregular space structure was not safety without considering of the spatial effect of torsion on the structure. The valuable and theoretical achievements have been yielded.
It is proposed an integral model to analyze the seismic response of a large-scale thermal power plant s main building with frame-bent in the transverse direction and frame-shear wall in the longitudinal direction under three certain seismic waves.The following subjects are concerned: the space model, the dynamic properties, the layer displacement, the interlayer deformation and layer shear, and compared the calculation result of the plant model with space model.The spatial effect ratio and adjusting coefficient of space structure were suggested, and the spatial effect was very obvious.Designing of the eccentric and irregular space structure was not safety without considering of the spatial effect of torsion on the structure. The valuable and theoretical achievements have been yielded.
2007, 37(11): 38-41.
doi: 10.13204/j.gyjz200711011
Abstract:
Through coordinate transformation corresponding to the isoparametric element theory, calculation of an abnormal element in Cartesian coordinate system is converted to a regular element in natural coordinate system.Applying this finite element technique to nonlinear ful-l range analysis theory of arbitrary reinforced concrete cross-sections, useful expressions of cross-section s strain field and stiffness matr ix in natural coordinate system are derived.In square element, procedure of carrying out Gauss integral to obtain every component of the stiffness matrix is proposed.This method makes numerical analysis methods of various shapes uniformed with one model.A comparison between the numerical analysis by arc-length method and the test results shows good agreements in ultimate loads
Through coordinate transformation corresponding to the isoparametric element theory, calculation of an abnormal element in Cartesian coordinate system is converted to a regular element in natural coordinate system.Applying this finite element technique to nonlinear ful-l range analysis theory of arbitrary reinforced concrete cross-sections, useful expressions of cross-section s strain field and stiffness matr ix in natural coordinate system are derived.In square element, procedure of carrying out Gauss integral to obtain every component of the stiffness matrix is proposed.This method makes numerical analysis methods of various shapes uniformed with one model.A comparison between the numerical analysis by arc-length method and the test results shows good agreements in ultimate loads
2007, 37(11): 42-46.
doi: 10.13204/j.gyjz200711012
Abstract:
Based on Pushover analysis, the new chevron bracing compound structure would be studied for seismic fortification properties.The compound structure satisfies seismic requirements of 9 seismic fortification intensity and anticollapse of rare earthquake.The energy dissipation mechanism of the structure is belong to mixed mechanism.The positions and orders of plastic hinges are braces, and then beams ends, at last columns ends.In order to obtain reasonable energy dissipation mechanism, it is analyzed the influence factors, such as section, steel areas of the braces for the first floor column, and steel areas of the braces for the first and second floors.A reasonable energy dissipation mechanism to satisfy seismic fortification properties of stronger columns, medium beams, and week braces is optimized.The analysis results indicate that the horizontal displacement of chevron bracing compound structure is a shear deformation.
Based on Pushover analysis, the new chevron bracing compound structure would be studied for seismic fortification properties.The compound structure satisfies seismic requirements of 9 seismic fortification intensity and anticollapse of rare earthquake.The energy dissipation mechanism of the structure is belong to mixed mechanism.The positions and orders of plastic hinges are braces, and then beams ends, at last columns ends.In order to obtain reasonable energy dissipation mechanism, it is analyzed the influence factors, such as section, steel areas of the braces for the first floor column, and steel areas of the braces for the first and second floors.A reasonable energy dissipation mechanism to satisfy seismic fortification properties of stronger columns, medium beams, and week braces is optimized.The analysis results indicate that the horizontal displacement of chevron bracing compound structure is a shear deformation.
2007, 37(11): 47-52.
doi: 10.13204/j.gyjz200711013
Abstract:
Failure phenomena and failure mechanism of concrete local compression are elaborated.Calculation methods of local compression load bearing capacity are analyzed.Some problems in actual calculations are brought forward as well as the consideration relevant to these problems.It is proposed that the calculation and selection method and distribution principle of three kinds of indirect reinforcement in local compression influence zone.All these can be served as theoretical references for making further researches on local compression and perfecting calculation methods of local compression.
Failure phenomena and failure mechanism of concrete local compression are elaborated.Calculation methods of local compression load bearing capacity are analyzed.Some problems in actual calculations are brought forward as well as the consideration relevant to these problems.It is proposed that the calculation and selection method and distribution principle of three kinds of indirect reinforcement in local compression influence zone.All these can be served as theoretical references for making further researches on local compression and perfecting calculation methods of local compression.
2007, 37(11): 53-56.
doi: 10.13204/j.gyjz200711014
Abstract:
For design and construction of over-long concrete structures, some problems are discussed.These include analysis methods of structural internal force due to concrete shrinkage and difference in temperature, limit state design methods considering indirect action, similarities and differences of structural internal force due to concrete shrinkage and difference in temperature, segmental construction, rational se-t up of prestressing tendons and non-prestressed reinforcing bars etc.
For design and construction of over-long concrete structures, some problems are discussed.These include analysis methods of structural internal force due to concrete shrinkage and difference in temperature, limit state design methods considering indirect action, similarities and differences of structural internal force due to concrete shrinkage and difference in temperature, segmental construction, rational se-t up of prestressing tendons and non-prestressed reinforcing bars etc.
2007, 37(11): 57-60.
doi: 10.13204/j.gyjz200711015
Abstract:
Through the series model tests of single pile, raft and single pile with cap, the conclusion that the influencing depth of additional stress is determined by the dimension of the raft and the characteristic of the soil is drawn; the strengthening or weakening action of the cap is analyzed, the cap can strengthen the pile bearing capacity of tip and weaken the pile bearing capacity of skin; considering of the changing of additional stress field, the nonlinear behavior of pile and soil is depicted and the failure pattern is concluded: firstly, the single pile with cap gets into the nonlinear state in the bearing progress, then, the net cap gets into the nonlinear state, all this is determined by the progress of the soil plastically deforming.
Through the series model tests of single pile, raft and single pile with cap, the conclusion that the influencing depth of additional stress is determined by the dimension of the raft and the characteristic of the soil is drawn; the strengthening or weakening action of the cap is analyzed, the cap can strengthen the pile bearing capacity of tip and weaken the pile bearing capacity of skin; considering of the changing of additional stress field, the nonlinear behavior of pile and soil is depicted and the failure pattern is concluded: firstly, the single pile with cap gets into the nonlinear state in the bearing progress, then, the net cap gets into the nonlinear state, all this is determined by the progress of the soil plastically deforming.
2007, 37(11): 61-63,93.
doi: 10.13204/j.gyjz200711016
Abstract:
Numerical simulation analysis of consolidation of composite ground with undrained piles under embankment is performed with finite element method.Consolidation characteristics of this kind of composite ground are studied systematically, through comparison of consolidation rates of natural ground, composite ground with floating piles and composite ground with penetrated piles.The numerical results indicate that consolidation rate of composite ground with penetrated piles is much faster than that of natural ground, replacement ratio and elastic modulus ratio between pile and soil are the most important factors affecting its consolidation rate.Consolidation characteristics of composite ground with floating piles differ greatly from that of composite ground with penetrated piles, ratio between pile length and thickness of soft soil layer has important effect on its consolidation rate.
Numerical simulation analysis of consolidation of composite ground with undrained piles under embankment is performed with finite element method.Consolidation characteristics of this kind of composite ground are studied systematically, through comparison of consolidation rates of natural ground, composite ground with floating piles and composite ground with penetrated piles.The numerical results indicate that consolidation rate of composite ground with penetrated piles is much faster than that of natural ground, replacement ratio and elastic modulus ratio between pile and soil are the most important factors affecting its consolidation rate.Consolidation characteristics of composite ground with floating piles differ greatly from that of composite ground with penetrated piles, ratio between pile length and thickness of soft soil layer has important effect on its consolidation rate.
2007, 37(11): 64-67.
doi: 10.13204/j.gyjz200711017
Abstract:
The Great Hanshin earthquake in Japan brought serious damage to subway station, and the damage was caused by the collapse of mid pillar.It indicates that mid pillar is the weak part in terms of aseismic design of shallow underground structure.The internal force of mid pillar in the static and dynamic state is calculated by FLAC, and the shaking table scaled test of a typical subway station in Beijing is conducted to study the dynamic performance of mid pillar subjected to earthquake, the damage mechanism of mid pillar in earthquake is analyzed, and some rules are provided to aseismic design of shallow underground structures.
The Great Hanshin earthquake in Japan brought serious damage to subway station, and the damage was caused by the collapse of mid pillar.It indicates that mid pillar is the weak part in terms of aseismic design of shallow underground structure.The internal force of mid pillar in the static and dynamic state is calculated by FLAC, and the shaking table scaled test of a typical subway station in Beijing is conducted to study the dynamic performance of mid pillar subjected to earthquake, the damage mechanism of mid pillar in earthquake is analyzed, and some rules are provided to aseismic design of shallow underground structures.
2007, 37(11): 68-70,84.
doi: 10.13204/j.gyjz200711018
Abstract:
composite ground can be widely used in the improvement of soft foundation, but the mechanism is incomplete, the distribution of frictional resistance should be researched in detail.Based on vertical displacements equality between pile and surrounding soil in the composite foundation, the distributions of frictional resistance and ax ial force are derived with Mindlin.s solution of displacement, and the formuls of maximum frictional resistance and its depth are also obtained.The formula of effective length of pile is g iven by means of simplifying distribution of frictional resistance.
composite ground can be widely used in the improvement of soft foundation, but the mechanism is incomplete, the distribution of frictional resistance should be researched in detail.Based on vertical displacements equality between pile and surrounding soil in the composite foundation, the distributions of frictional resistance and ax ial force are derived with Mindlin.s solution of displacement, and the formuls of maximum frictional resistance and its depth are also obtained.The formula of effective length of pile is g iven by means of simplifying distribution of frictional resistance.
2007, 37(11): 71-73.
doi: 10.13204/j.gyjz200711019
Abstract:
The shear experiment on new and old concrete bonding interface planted with reinforced bar is presented.Three different planting steel types are considered which are expanding cement bonding, ethoxyline resin bonding and preloaded steel.The regulations influenced by planting steel ratio and planting steel adhesive are studied.The effects of different planting steel types are compared and analyzed.
The shear experiment on new and old concrete bonding interface planted with reinforced bar is presented.Three different planting steel types are considered which are expanding cement bonding, ethoxyline resin bonding and preloaded steel.The regulations influenced by planting steel ratio and planting steel adhesive are studied.The effects of different planting steel types are compared and analyzed.
2007, 37(11): 74-76,114.
doi: 10.13204/j.gyjz200711020
Abstract:
:Mill-cut, hooked end and straight-round steel fibers were used, whose effects on concrete were experimentally studied.The results show that the bending strengths of till-cut, hooked end and straight-round steel fiber concretes are respectively increasd by 19.0%、13.6% and 9.5% over reference concrete, and their JCI toughness coefficient is increased by 355.3 %、501.0 % and 204.8 % over reference concrete.three kinds of steel fibers may be divided into ordinary, reinforcing-strength and reinforcing-toughness steel fibers on the basis of their effect on concrete.The steel fiber of different geometrical form is used according to the needs of projects.
:Mill-cut, hooked end and straight-round steel fibers were used, whose effects on concrete were experimentally studied.The results show that the bending strengths of till-cut, hooked end and straight-round steel fiber concretes are respectively increasd by 19.0%、13.6% and 9.5% over reference concrete, and their JCI toughness coefficient is increased by 355.3 %、501.0 % and 204.8 % over reference concrete.three kinds of steel fibers may be divided into ordinary, reinforcing-strength and reinforcing-toughness steel fibers on the basis of their effect on concrete.The steel fiber of different geometrical form is used according to the needs of projects.
2007, 37(11): 77-80.
doi: 10.13204/j.gyjz200711021
Abstract:
Experimental study on the longitudinal cracks of 41 corroded reinforcement concrete beams in atmospheric environment is carried out.The concrete cover depth and stress state of the beams have great effect on the longitudinal cracks.It is difficult for the longitudinal cracks to occur with a thick concrete cover.The possibility of the longitudinal cracks occurring at the tensile zone is doubled of that at the compression zone and the possible reasons are also analyzed. The quantitative relationship of longitudinal cracks width and steel corrosion rate is presented, which is valid for estimating the durability of concrete beams.
Experimental study on the longitudinal cracks of 41 corroded reinforcement concrete beams in atmospheric environment is carried out.The concrete cover depth and stress state of the beams have great effect on the longitudinal cracks.It is difficult for the longitudinal cracks to occur with a thick concrete cover.The possibility of the longitudinal cracks occurring at the tensile zone is doubled of that at the compression zone and the possible reasons are also analyzed. The quantitative relationship of longitudinal cracks width and steel corrosion rate is presented, which is valid for estimating the durability of concrete beams.
2007, 37(11): 81-84.
doi: 10.13204/j.gyjz200711022
Abstract:
Even if structure, especially reinforced concrete columns, is not destroyed in the earthquake effect, but the residual deformations may be very large and there will be gigantic economic losses.The unbonded high-strength strand used in the concrete columns can minimize the residual deformations effectively.Some scholars abroad have conducted studies in this subject.The current situation of studying on the prestressed concrete columns is summed up, some factors that influence the performance of the columns are studied, and the developing direction is indicated by summarizing the conclusion of the studies.
Even if structure, especially reinforced concrete columns, is not destroyed in the earthquake effect, but the residual deformations may be very large and there will be gigantic economic losses.The unbonded high-strength strand used in the concrete columns can minimize the residual deformations effectively.Some scholars abroad have conducted studies in this subject.The current situation of studying on the prestressed concrete columns is summed up, some factors that influence the performance of the columns are studied, and the developing direction is indicated by summarizing the conclusion of the studies.
2007, 37(11): 85-87,96.
doi: 10.13204/j.gyjz200711023
Abstract:
According to the test results of seismic resistant performance of five stee-l concrete composite beams under cyclic point concentrated loads, it was analyzed that the yield load and deflection, ultimate load and deflection, as well as, the flat load, the framework curve model of stee-l concrete composite beams under positive and negative load were proposed.The easily applied uniform expressions were also shown.According to the experimental results, the hysteretic rule of loaddeflection and restoring force model of stee-l concrete beams were established.
According to the test results of seismic resistant performance of five stee-l concrete composite beams under cyclic point concentrated loads, it was analyzed that the yield load and deflection, ultimate load and deflection, as well as, the flat load, the framework curve model of stee-l concrete composite beams under positive and negative load were proposed.The easily applied uniform expressions were also shown.According to the experimental results, the hysteretic rule of loaddeflection and restoring force model of stee-l concrete beams were established.
2007, 37(11): 88-90.
doi: 10.13204/j.gyjz200711024
Abstract:
The forced behavior of large sized thin walled tubes members subjected to bending is analyzed by nonlinear finite element.The influence of several factors on stability capacity of these members subjected to bending is taken into account. Thus according to correlative design standard of steel structures, and on the basis of numerical results by the F.E. methods, the calculation formulas of the stability bearing capacity are presented for the members subjected to bending.
The forced behavior of large sized thin walled tubes members subjected to bending is analyzed by nonlinear finite element.The influence of several factors on stability capacity of these members subjected to bending is taken into account. Thus according to correlative design standard of steel structures, and on the basis of numerical results by the F.E. methods, the calculation formulas of the stability bearing capacity are presented for the members subjected to bending.
2007, 37(11): 91-93.
doi: 10.13204/j.gyjz200711025
Abstract:
There will be a greater difference between the working state after applying prestress and the set-out size of the members for a string beam structure due to its nonlinear characteristics.Using FEM the stiffness matrix of a cable element is replaced continuously during the process to zero-stress state from the working state in order to lead in prestress, so as to unify the shape and load analyses.The analy sis of a typical example shows that the method features a simple calculation and a higher precision.
There will be a greater difference between the working state after applying prestress and the set-out size of the members for a string beam structure due to its nonlinear characteristics.Using FEM the stiffness matrix of a cable element is replaced continuously during the process to zero-stress state from the working state in order to lead in prestress, so as to unify the shape and load analyses.The analy sis of a typical example shows that the method features a simple calculation and a higher precision.
2007, 37(11): 94-96.
doi: 10.13204/j.gyjz200711026
Abstract:
The health monitoring system for overbridge of a steelworks is designed and implemented by employing the design method proposed by authors.Firstly, the monitoring item of the health monitoring is determined.Then the type, location and performance of the sensors, the data acquisition module are studied and implemented.The system has been running and collecting data since the overbridge works.The monitoring results indicate the performance of sy stem has reached the designed objectives.
The health monitoring system for overbridge of a steelworks is designed and implemented by employing the design method proposed by authors.Firstly, the monitoring item of the health monitoring is determined.Then the type, location and performance of the sensors, the data acquisition module are studied and implemented.The system has been running and collecting data since the overbridge works.The monitoring results indicate the performance of sy stem has reached the designed objectives.
2007, 37(11): 97-98,103.
doi: 10.13204/j.gyjz200711027
Abstract:
It is introduced the design and research of the structure of a sight cable suspension bridge including determination of the loads, calculating of the structure and structure design.Especially it is discussed in detail the spatial cable and shuttle shaped latticed column design and their application to projects
It is introduced the design and research of the structure of a sight cable suspension bridge including determination of the loads, calculating of the structure and structure design.Especially it is discussed in detail the spatial cable and shuttle shaped latticed column design and their application to projects
2007, 37(11): 99-101.
doi: 10.13204/j.gyjz200711028
Abstract:
:Failure of fastener-style tubular steel formwork is one of the key issues faced in safe construction at present.In order to provide the basis for the working-out Technical Rule for Steel Tubular Formwork Support with Couplers in Building Construction, a calculation model for construction system of fastener-style steel tubular formwork support was founded by means of software ANSYS and sensitivity analysis of main parameters that dominate the ultimate capacity was conducted. Relative sensitivity curves were obtained, which supply a reliable basis for erecting fastener-style steel tubular formwork support.
:Failure of fastener-style tubular steel formwork is one of the key issues faced in safe construction at present.In order to provide the basis for the working-out Technical Rule for Steel Tubular Formwork Support with Couplers in Building Construction, a calculation model for construction system of fastener-style steel tubular formwork support was founded by means of software ANSYS and sensitivity analysis of main parameters that dominate the ultimate capacity was conducted. Relative sensitivity curves were obtained, which supply a reliable basis for erecting fastener-style steel tubular formwork support.
2007, 37(11): 102-105.
doi: 10.13204/j.gyjz200711029
Abstract:
An analyzing the defects in the Chinese Code for Design of Steel Structure and a comparison Chinese code with Eurocode and AISC code and relevant advises are given.
An analyzing the defects in the Chinese Code for Design of Steel Structure and a comparison Chinese code with Eurocode and AISC code and relevant advises are given.
2007, 37(11): 106-108,115.
doi: 10.13204/j.gyjz200711030
Abstract:
The damages of a dyeing factory subjected to fire disaster were described.Safety situation of the building was evaluated according to the relative codes.Some problems on the examination and safety evaluation of prestressed concrete structure were discussed.According to the actual damages to the building, it was proposed that the damaged structure should be reinforced with some constituted measures, which could be given by the concept design.Dangerous situation of the fired structures were eliminated after the consolidation.
The damages of a dyeing factory subjected to fire disaster were described.Safety situation of the building was evaluated according to the relative codes.Some problems on the examination and safety evaluation of prestressed concrete structure were discussed.According to the actual damages to the building, it was proposed that the damaged structure should be reinforced with some constituted measures, which could be given by the concept design.Dangerous situation of the fired structures were eliminated after the consolidation.
2007, 37(11): 109-112.
doi: 10.13204/j.gyjz200711031
Abstract:
Masonry U-shaped high abutment is a widely adopted structural form in western mountainous area.The partial cracks of regulation destroy often take place under the effect of earth fill and vehicle loading.In order to study the destruction mechanism of U-shaped high abutment and put forward improving methods to resolve the problem of partial cracks, the strength and destruction mechanism of the un-reinforced U-shaped abutment and reinforced U-shaped abutment are analyzed by model testing and finite element method simulation.As a result, the destruction mechanism of U-shaped high abutment is clear, and the validity of the improving method is also analyzed.
Masonry U-shaped high abutment is a widely adopted structural form in western mountainous area.The partial cracks of regulation destroy often take place under the effect of earth fill and vehicle loading.In order to study the destruction mechanism of U-shaped high abutment and put forward improving methods to resolve the problem of partial cracks, the strength and destruction mechanism of the un-reinforced U-shaped abutment and reinforced U-shaped abutment are analyzed by model testing and finite element method simulation.As a result, the destruction mechanism of U-shaped high abutment is clear, and the validity of the improving method is also analyzed.
