Core Chinese Journal
Source Journal of CSCD
Source Journal for Chinese Scientific and Technical Papers
Core Journal of RCCSE
Included in JST China
Included in the Hierarchical Directory of High-quality Technical Journals in Architecture Science Field

2005 Vol. 35, No. 12

Display Method:
PHASE-MODEL OF CORROSION RATE OF STEEL BAR UNDER CHLORIDE ENVIRONMENT
Zhao Zhuo, Li Feng, Ma Yali
2005, 35(12): 1-4. doi: 10.13204/j.gyjz200512001
Abstract:
Based on the discussion on default of corrosion rate of steel bar, phase-model of predicting corrosion rate is constructed.Aimed at the difference of effect of concrete on steel bar, random model of corrosion rate is established before and after crack, which will provide a theoretical basis for predicting reliability and residual life of reinforced concrete structures under chloride environment.
THE RESISTIVITY OF CONCRETE CONTAMINATED BY CHLORIDE
Gong Guojun, Song Xiaobing, Kong Qiming
2005, 35(12): 5-7. doi: 10.13204/j.gyjz200512002
Abstract:
Concrete resistivity is an importmant factor affecting corrosion rate of steel in concrete.The resistance of concrete with different W/C, relative humidity and chloride ion content was tested, from which the resistivity of concrete was calculated.Finally a practical model was presented for estimating the resistivity of the concrete under chloride environment.
OPINIONS ON TEST METHOD OF CHLORIDE IONS CONTENT IN "TESTING CODE OF CONCRETE FOR PORT AND WATERWAY ENGINEERING"
Sun Guowen, Guan Xuemao, Luo Shuqiong, Huang Dan
2005, 35(12): 8-10,7. doi: 10.13204/j.gyjz200512003
Abstract:
On condition of acid dissolving test samples, using ferriammonium sulfate as an indicator to test chloride ions content in concrete, the testing results are precise and titration end point is very obvious.Whereas using iron vitriol as an indicator according to Testing Code of Concrete for Port and Waterway Engineering(JTJ 270-98), it is found that the error is relatively large and titration end point is blur.Many experiments prove that adding organic solvent to testing liquor is very advantage, because it can avoid deposition developed from transforming.Which is more favorable for coloring of potassium chromate and improving testing precision in using water dissolving sample to test chloride ions, the concentration of sulfuric acid needs to dilute in view of practical situation.
PROBABILITY DISTRIBUTION RESEARCH ON RATIO BETWEEN MAXIMUM CORROSION DEPTH AND AVERAGE CORROSION DEPTH UNDER CHLORIDE ENVIRONMENT
Ma Yali, Zhang Ailin
2005, 35(12): 11-14. doi: 10.13204/j.gyjz200512004
Abstract:
Based on the test data, by the statistic analysis, probability distribution of the ratio between maximum corrosion depth and average corrosion depth is confirmed.By K-S test, the ratio between maximum corrosion depth and average corrosion depth is concluded.The ratio between maximum corrosion depth and average corrosion depth is regarded as index of corrosion depth;the probability distribution of ratio is discussed, a new method of probability analysis of corrosion depth under chloride environment is proposed, which will provide a scientific basis for durability evaluation and reliability research on RC structures with corrosion of steel bar being taken into account.
EFFECT OF CORROSION ON BOND BETWEEN REINFORCING STEEL AND CONCRETE UNDER CYCLIC LOADING
Fang Congqi
2005, 35(12): 15-18,22. doi: 10.13204/j.gyjz200512005
Abstract:
Cyclic loading can result in severe degradation of bond between reinforcing steel bar and the surrounding concrete, especially when the reinforcement is corroded.Tests have been carried out to evaluate the effect of reinforcement corrosion on bond under cyclic loading for different corrosion levels.Parameters investigated include corrosion level and lateral confinement.The embedded reinforcing steel bars, either laterally confined or unconfined, were corroded to different levels by accelerated corrosion method before being tested for bond stress-slip under cyclic loads.The results revealed that a low level of corrosion helped to reduce bond loss during loading.However, this effect was decreased as corrosion level increased.The bond capacity in unloading phase was only three-fourth of that in loading phase.Bond strength decreased more substantially as corrosion level increased in unconfined bars than in confined ones.The term bond degradation factor was developed to represent the bond loss during loading.A higher level of corrosion caused bond degradation primarily in the initial five loading cycles, the effect of corrosion being decreased with loading.It was also demonstrated that cyclic bond stress-slip curve depended on loading history.
BOND MECHANISM AND DEGRADATION MODEL BETWEEN REINFORCEMENT AND CONCRETE SUBJECTED TO DEICER-FROSTING CYCLES
He Shiqin, Gong Jinxin, Wang Haichao
2005, 35(12): 19-22. doi: 10.13204/j.gyjz200512006
Abstract:
The experiment of bond of beam elements subjected to deicer-frosting cycles was carried out and the effect of deicer-frosting cycles on the bond characters between reinforcement and concrete was studied.Based on the experimental results, the bond mechanism of reinforcement and concrete after deicer-frosting cycles was explored, and the degradation rule of bond strength and the model of bond-slip relationship were developed.
DAMAGE PATTERN OF COLUMNS WITH CORRODED STEEL BARS IN THE COMPRESSIVE ZONE OF CONCRETE SECTION AND THE DIFFICULT IDENTIFICATION OF CORROSION WITH HALF-CELL TECHNIQUE
Yi Weijian, Zhao Xin
2005, 35(12): 23-26,90. doi: 10.13204/j.gyjz200512007
Abstract:
It is presented an investigation of many reinforced concrete columns in four large workshops, since most of the columns are badly corroded.And a discussion of the usage of half-cell technique is carried out to get a fast appraisal of the corrosion state in the concrete structure, and is pointed out the limitation of the identification standard:ASTM C876.Based on the results of this investigation of corrosion damage and finite element method, it is also analyzed this kind of effect when the corrosion of the steel bars occurs in the compressive zone of concrete section of the reinforced concrete column.Even though there are the expanded action of corrosion products, it is clear that the location of stress peak point in the concrete, surrounding the corrosion bar is almost the same.But the compression stress could accelerate the development of corrosion crack obviously, which would speed up the failure of concrete cover.Moreover, corner spalling, and splitting spalling are two more potential models of the concrete cover failure.
FOOTFALLS OF MULTICULTURE IN DEPTHS OF A SMALL WINDING STREET——TRADITIONAL VILLAGE AND BUILDINGS IN SOUTHEAST MOUNTAIN AREA OF GUIZHOU PROVINCE
Zhou Bo, Wang Bo, Zhou Zhenlun
2005, 35(12): 27-28,46. doi: 10.13204/j.gyjz200512008
Abstract:
Through the study on culture background of ethnic minority of state of the southeast of Guizhou Province, it was summarized and pointed out how to develop the research's vision through conforming the methods of multi-subjects.The correlative theory of this problem was discussed.Further more, the specific research frame and content, which are set up on three steps of village, architecture, culture circles, ecological environment, were also worked out.Finally some opinions on landscape evalution and plannings were proposed.
APPLICATION OF HYPERMEDIA TECHNOLOGY IN DEMONSTRATION OF ARCHITECTURAL DESIGN SCHEMES
Yu Chunlong, Wu Guobo
2005, 35(12): 29-31. doi: 10.13204/j.gyjz200512009
Abstract:
A traditional demonstration process of a scheme consists of its designer and the explained contents.Yet it has already been urgent to introduce the hypermedia technology into the demonstration process of an architectural design scheme with rapid development of modern information technology and the complexity of architectural design contents.Using an actual example it is explored the application of hypermedia technology in demonstration of architectural design scheme.
ANALYSIS OF THE COUPLING RESPONSE BETWEEN TRANSLATION AND TORSION UNDER EARTHQUAKE OF ACTUAL ASYMMETRIC STRUCTURE
Zhou Xiaosong, Pei Xingzhu, Liao Shuqing
2005, 35(12): 32-36,54. doi: 10.13204/j.gyjz200512010
Abstract:
Linear eccentricity of a structure has great influence on aseismatic performance of the structure.Datalied and deep analysis of seismic response of eccentric structure has been made.It is enumerated two kinds of actual structures and is also established the momentum differentiating equation of coupling between the translation and torsion of single layer of asymmetric structure under earthquake.By adopting Rayleighs damping model and using time-history analysis(Wilson- Method), the linear elastic analysis of the structure was made, and the earthquake response and dynamic characteristics of the structure model were calculated under different eccentricity ratio and stiffness ratio.Finally, some valuable conclusions were drawn, which can supply references to engineering calculation and design of structural torsional response under earthquake.
DESIGN AND MECHANICAL PROPERTY EXPERIMENTAL ANALYSIS OF MASONRY COLUMNS FOR STRUCTURAL EMERGENCY REINFORCING
Diao Bo, Zheng Xiaoning, Sun Yang
2005, 35(12): 37-39,71. doi: 10.13204/j.gyjz200512011
Abstract:
The mechanical properties and compressive ultimate capacities of masonry columns after 24h are analyzed with experiments.The experimental results are compared with standard masonry specimens.The calculating method and design method for the 24h masonry columns are suggested according to the existing Design Code of Masonry Structures.
PLASTIC ANALYSIS OF ROUND CONCRETE SLABS
Wang Chunwu
2005, 35(12): 40-42. doi: 10.13204/j.gyjz200512012
Abstract:
The ultimate bearing capacity of round reinforced concrete slabs and slabs with opening is studied based upon the plastic theory, which may be a reference for actual structural design.
CALCULATION METHOD FOR CONFINED CONCRETE WITH MULTIPLE LATERAL HOOPINGS
Nie Jianguo, Bai Yu, Li shengyong, Xiao Yan
2005, 35(12): 43-46. doi: 10.13204/j.gyjz200512013
Abstract:
Due to compression in three-axis, the ductility and strength of concrete confined by lateral circular hoopings become much higher.In the need of strength and stiffness in local section, multiple lateral hoopings confined concrete is applied into practice, such as beam-column joints, etc.From the existing principle of confined concrete, two methods are proposed on the strength prediction of confined concrete with multiple lateral hoopings.The suitable scope of application of each one is derived through comparison.
TEST AND RESEARCH ON SLIDING AND SHOCK INSULATION OF LARGE BAY REINFORCED CONCRETE AND BRICK CONSTRUCTION
Huang Wei, Feng Dingguo
2005, 35(12): 47-50,79. doi: 10.13204/j.gyjz200512014
Abstract:
The research object is reinforced concrete and brick construction.The method of sliding and shock insulation to the base is used to simulate seismic vibrating table to test a large bay brick construction model without taking special reinforced measurements.During the test, the parameters, which affect the performance of the shock insulation, are adjusted appropriately;the effects of the parameters are quantitatively or qualitatively analyzed.Moreover, the mechanisms and characteristics of the structural sliding and shock insulation are discussed.
ANALYSIS OF THE ULTIMATE BEARING CAPACITY OF JOINTED ROCK FOUNDATIONS BY FEM
Deng Chujian, Kong Weixue, Zheng Yingren
2005, 35(12): 51-54. doi: 10.13204/j.gyjz200512015
Abstract:
The mechanical properties of the joint can be described by the sandwich model or by contact model in FEM analysis.The ultimate bearing capacity of jointed rock foundations is analyzed by elastic-plastic FEM.The results show the ultimate bearing capacity of jointed rock foundations first deceases and then increases as the obliquity of the joint increases.The strength of the joint affects the ultimate bearing capacity of jointed rock foundations greatly unless the obliquity is too small or too large.The location of the joint also affects the ultimate bearing capacity of jointed rock foundations.In engineering practice, the effects of joint should be considered carefully.
ANALYTICAL SOLUTIONS OF KELVIN'S VISCOELASTIC HALF-INFINITE SPACE SUBJECTED TO INTERIOR VERTICAL CONCENTRATED LOADING
Zhu Yanzhi
2005, 35(12): 55-60. doi: 10.13204/j.gyjz200512016
Abstract:
By means of half-space Mindlins elastic solutions and correspondent principle between elasticity and viscoelasticity, the viscoelastic solutions of stress and displacement, subjected to suddenly applied vertical and horizontal concentrated forces and given elastic volume strain and standard linear solid model distortion constitutive relations, were systematically derived by Laplace transforms and Laplace inverse transforms.Finally, an example was given 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 deep buried foundation.And the results show that it is necessary to take account of viscoelasticity effect of semi-infinite half-space in the calculation for stress and displacement.This study provides a theoretical basis for calculating viscoelastic settlement of actual projects.
ANALYSIS OF DEEP EXCAVATION RETAINING DESIGN AND ITS CONSTRUCTION MONITORING FOR THE WUSHAN METRO STATION
An Guanfeng, Gao Junyue
2005, 35(12): 61-66. doi: 10.13204/j.gyjz200512017
Abstract:
The deep excavation of Wushan Metro Station is near multi-story apartments with natural foundation and Yuezhou Road with heavy traffic.Considering the high jetting mixing pile for water-proofing of foundation, the foundation with 17.7m depth is designed for using diaphragm wall with multi-story support.The deep excavation monitoring is done during its construction in detail, and a lot of monitoring data are obtained while the construction lessons are given.The experience is worth considering in similar cases.
RESPONSE ANALYSIS OF THE SOIL-STRUCTURE INELASTIC INTERACTION SYSTEM UNDER EVOLUTIONARY RANDOM EXCITATIONS
Zhang Guodong
2005, 35(12): 67-71. doi: 10.13204/j.gyjz200512018
Abstract:
The evolutionary random excitation acting on structures is assumed to be non-uniformly modulated.The non-stationary characters of earthquake motion of intensity and frequency are considered, and the soil-structure interaction system is analysed by equivalent linearization method.The evolutionary spectra and time-variant cross-correlation function of the response for the soil-structure interaction system are obtained, and one utility method of calculation and its process are also given.The numerical example shows that the inelastic response of the soil-structure interaction system is affected significantly by the characters of the frequency non-stationarity of seismic ground motion.
THE RESPIRABLE STEEL STRUCTURES SYSTEM IN TIANJIN MUSEUM
Chen Zhihua, Yan Xiangyu
2005, 35(12): 72-74,87. doi: 10.13204/j.gyjz200512019
Abstract:
A new structural system that can release the non-neglectable temperature stress due to temperature changes in long-span spatial grid structure was put forward according to the structural characteristics of Tianjin Museum.The principle of bearing different loads was analyzed.The joint type that can be used for this structural system was studied.The realization and application of the respirable steel structure in Tianjin Museum were summarized.
APPLICATION STUDY ON THE SPATIAL CURVE TAPERED BOX GIRDER FOR TIANJIN MUSEUM
Chen Zhihua, Li Yang, Shi Jie
2005, 35(12): 75-77. doi: 10.13204/j.gyjz200512020
Abstract:
Architectural profiling of the swan neck part that connects the long neck-shaped passage and the latticed shell for Tianjin Museum was introduced.The 3D modeling and structural design of spatial curved tapered box girder were studied.The construction lofting of the tapered box girder was analyzed.The joints between the tapered box girder and other parts of the structure were described.which provided a basis for the design and construction of the swan neck part of Tianjin Museum.
APPLICATION STUDY ON THE UMBRELLA-SHAPED ANNULAR STEEL COLUMN FOR TIANJIN MUSEUM
Chen Zhihua, Rong Bin, Shi Jie, Li Yang
2005, 35(12): 78-79. doi: 10.13204/j.gyjz200512021
Abstract:
The architectural profiling of the umbrella-shaped annular steel column that supported the swan neck part in Tianjin Museum was introduced.And three types of umbrella-shaped annular columns were analyzed.The installation of the umbrella-shaped annular column was described.Which provided a basis for the design and construction of this sort of column for Tianjin Museum.
THE ROOF STRUCTURE DESIGN OF GAMECO HANGAR AT NEW BAIYUN INTERNATIONAL AIRPORT IN GUANGZHOU
Zhu Dan, Pei Yongzhong, Zhao Tianyou
2005, 35(12): 80-83. doi: 10.13204/j.gyjz200512022
Abstract:
It is presented the steel structure design of GAMECO No.10 Hangar at New Baiyum International Airport in Guangzhou.The roof structure of the hangar is made up of a multi-stage steel truss system.Suspended equipments on the lower chord level of the roof truss exceed those of any other hangars in China both in numbers and in weights.It is presented that main aspects of the structural design, including features of the structure, the structural scheme, load values for the design, the results of structural analysis, selection and determination of the structural materials, design of joints and connections, etc.
CALCULATION OF STEEL-PIPE COLUMN BASE CONNECTION UNDER A COMBINATION LOADING OF COMPRESSION,SHEAR AND TWISTING
Jin Hui, Zhang Qilin, Xu Zhimin
2005, 35(12): 84-87. doi: 10.13204/j.gyjz200512023
Abstract:
F-type steel-pipe column is often used for outdoor advertisement board and traffic sign.The wind load is the control load.The column base is under eccentric compression and shearing force.The bending moments of two axial directions and the twisting moment are large.Based on classical methods a design and calculation procedure are proposed for the base-plate and anchor bolts of steel-pipe column base connections, which is different from that of the profile steel column base.
FIREPROOF DESIGN OF STEEL MILL BUILDINGS FOR FERROUS METALLURGICAL ENTERPRISES
Yang Chongnan, Le Jialong
2005, 35(12): 88-90. doi: 10.13204/j.gyjz200512024
Abstract:
It is introduced that the fireproof design of steel mill buildings for ferrous metallurgical enterprises and the national standard Fireproof Code for Design of Ferrous Metallurgical Enterprises that will be published in the near future.
STUDY OF STABLE TRANSITION BETWEEN OLD LOWER AND NEW UPPER STRUCTURAL STORIES
Li Shulin, Li Shuxiang, Yang Bin
2005, 35(12): 91-93. doi: 10.13204/j.gyjz200512025
Abstract:
It is mainly described the connection method between old lower and new upper columns both of which are concrete and the connection method between lower concrete columns and upper steel columns.The stable structural transition between old and new stories shall be ensured.The whole structure can thus withstand the horizontal wind load and earthquake load effectively.
DAMAGE IDENTIFICATION OF FRAME STRUCTURES BASED ON MODAL SENSITIVITY ANALYSIS——NUMERICAL SIMULATION AND TEST VERIFICATION
Xie Qiang, Zhao Liang
2005, 35(12): 94-96. doi: 10.13204/j.gyjz200512026
Abstract:
In order to verify the modal sensitivity based on damage identification method, numerical simulation is performed in three types of cases.This method is further evaluated by vibration test of a frame model.Numerical simulation and experimental verification clearly show that for the shear buildings, damage severity and locations can be detected by the method.
STRUCTURE PLAN OPTIMIZATION OF TRANSFER STORY FOR A COMMERCIAL HIGH-RISE BUILDING
Zhang Chongyang, Yuan Haitao, Fan Xiaoyan, Han Kesheng, Lu Lu, Yang Jie
2005, 35(12): 97-101. doi: 10.13204/j.gyjz200512027
Abstract:
The analysis process of four structure plans of a high_rise building is introduced.Based on the successful control of the capability of the whole structure, diverse parameters are compared including load_bearing and economic parameters.Further analysis is made to the optimized structural plan.Design suggestions are given finally for the structure plan selection of the fransfer story structure.
GARDENING AND OPEN SPACE——CONTEMPORARY USING OF DESIGN METHOD OF CHINESE TRADITIONAL GARDEN
Song Yuhui, Bai Mei
2005, 35(12): 102-103. doi: 10.13204/j.gyjz200512028
Abstract:
How to use traditional conception of designing in contemporary architecture designing successively and innovatively is a topic that is discussed frequently in architecture domain.Taking a small office bulding for example, it is explored that for a modern architecture, how to express the unification of age, tradition and regionality by means of combining the design method of the Chinese classic garden.
NEW TIMES AND NEW CONTENTS——ON BASIC PRINCIPLE OF ARCHITECTURE"UTILITY,ECONOMY AND BEAUTY"
Li Chen, Huang Pengbin
2005, 35(12): 104-106. doi: 10.13204/j.gyjz200512029
Abstract:
Starting with a bid of planning, from the three aspectsgeneralized architecture, regional culture and beauty of architecture, it was discussed that the new contents in new period for the basic principle of architectureutility, economy and beauty, then several proposals were put forward.
AN AGREEMENT OF NEW RATIONAL EXPRESSION WITH NEW MANIFESTATION CLAIM——EXPLANATION OF THE DESIGN OF SUZHOU NISHENG WINESHOP
Ji Haoxue
2005, 35(12): 107-108,31. doi: 10.13204/j.gyjz200512030
Abstract:
A new challenge is put forward to the design of a five_star wineshoop due to the multielement world.The design conception of plane and spatialnew rationalism was used for the design of Suzhou Nisheng Wineshop.Thenew performance doctrine was also tried and pursued for the modellings of the facade and space.The point of agreement between the two was expounded.
2005, 35(12): 109-113.
Abstract: