期刊文献+
共找到73篇文章
< 1 2 4 >
每页显示 20 50 100
课程思政在《混凝土(钢)结构检算》课程教学中的实践探索
1
作者 李英杰 金花 桂阿娟 《职业教育(汉斯)》 2024年第1期55-59,共5页
“双高”建设的背景下,《混凝土(钢)结构检算》课程始终以学生为中心,以立德树人为根本任务,按照“主题贯穿,有机融入”的基本思路,在教学过程中适时将思政元素与专业知识融入到一起,做到思政育人和专业引领同向同行,提升职业素养,培养... “双高”建设的背景下,《混凝土(钢)结构检算》课程始终以学生为中心,以立德树人为根本任务,按照“主题贯穿,有机融入”的基本思路,在教学过程中适时将思政元素与专业知识融入到一起,做到思政育人和专业引领同向同行,提升职业素养,培养具有大国工匠精神和爱国主义情怀的高素质技能型人才。 展开更多
关键词 混凝土()结构检算》 课程思政 教学实践
下载PDF
高职土建类混凝土(钢)结构检算课程教学改革探讨
2
作者 袁光英 《南宁职业技术学院学报》 2015年第6期59-61,共3页
混凝土(钢)结构检算课程是土木类高职院校必修的一门专业课。在高职类院校中由于混凝土及钢结构与力学的紧密联系,教学效果欠佳。通过立交桥式的多向衔接理论,以行动导向为手段,着力改变传统的混凝土(钢)结构检算的教学模式,以通俗易懂... 混凝土(钢)结构检算课程是土木类高职院校必修的一门专业课。在高职类院校中由于混凝土及钢结构与力学的紧密联系,教学效果欠佳。通过立交桥式的多向衔接理论,以行动导向为手段,着力改变传统的混凝土(钢)结构检算的教学模式,以通俗易懂的方法来进行教学,取得了良好的效果。 展开更多
关键词 混凝土()结构检算 教学改革 多向衔接理论 行动导向
下载PDF
高职《混凝土(钢)结构检算》课程教学改革与实践浅议
3
作者 王龙 《陕西教育(高教版)》 2015年第11期71-72,共2页
混凝土(钢)结构检算课程是高职高专土木工程类学生必修的一门专业基础课程,它主要培养学生设计、检算的理念,并能运用所掌握的材料知识、设计方法解决工程实际中所遇到的问题。本文从教学一线实际出发,阐述新形势下对该课程的一些改革... 混凝土(钢)结构检算课程是高职高专土木工程类学生必修的一门专业基础课程,它主要培养学生设计、检算的理念,并能运用所掌握的材料知识、设计方法解决工程实际中所遇到的问题。本文从教学一线实际出发,阐述新形势下对该课程的一些改革理念和实践经验。 展开更多
关键词 混凝土()结构 课程 改革与实践
下载PDF
Measurement and theoretical analysis of solar temperature field in steel-concrete composite girder 被引量:5
4
作者 陈晓强 刘其伟 朱俊 《Journal of Southeast University(English Edition)》 EI CAS 2009年第4期513-517,共5页
The solar temperature field of a large three-span continuous bridge with steel-concrete composite box girder and variable cross-section is measured to verify a calculation method for the temperature field of steel-con... The solar temperature field of a large three-span continuous bridge with steel-concrete composite box girder and variable cross-section is measured to verify a calculation method for the temperature field of steel-concrete composite beams. The test results show that the temperature of an external steel web- plate is higher than that of an internal web-plate due to the difference in solar radiation. Air temperature inside the box matches the average temperature of the whole steel box. Based on actual measurements, a transient thermal analysis with multiple boundary conditions is also carried out by a software program ANSYS. Convective boundary situation and states of solar radiation on steel web plates in different situations are determined in the analysis. The feature of the temperature field is preliminarily achieved through a comparative study between the actual measurement and the finite element analysis. The computed results are in good consistence with the actual measurement results, with the maximum difference within 2 ℃. This indicates that the theoretical calculation method is reliable and it provides a foundation for further research on temperature field distribution in the steel-concrete composite box girder. 展开更多
关键词 steel-concrete composite structure: solar radiation: temperature field EXPERIMENT
下载PDF
Application of laminated vierendeel truss in high-position transfer story structure 被引量:8
5
作者 戴国亮 童小东 +1 位作者 黄祥海 梁书亭 《Journal of Southeast University(English Edition)》 EI CAS 2005年第2期184-190,共7页
To meet the demands for large space and flexible compartmentation ofbuildings, laminated vierendeel trasses are adopted in high-position transfer story structures.First the bearing characteristics are analyzed, in whi... To meet the demands for large space and flexible compartmentation ofbuildings, laminated vierendeel trasses are adopted in high-position transfer story structures.First the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upperchord, middle chord, and lower chord is derived. Then combined with an actual engineering model (1:8similar ratio), the static loading and pseudo-dynamic tests of two models for laminated vierendeeltrass used in transfer story structures are conducted, in which one model adopts reinforcedconcrete, and the other adopts prestressed concrete and shape steel concrete. Seismic behaviors areanalyzed, including inter-story displacement, base shear-displacement skeleton curves, andequivalent viscosity-damping curves. A program is programmed to carry out the elasto-plastic dynamicanalysis, and displacement time-history curves of the two models are derived. The test and analysisresults show that the laminated vierendeel trass with prestressed concrete and shape steel concretehas excellent seismic behaviors. It can solve the disadvantages of laminated vierendeel trussesused in transfer story structures. Finally, some design suggestions are put forward, which can bereferenced by similar engineering. 展开更多
关键词 laminated vierendeel trass steel concrete transfer story structure prestressed concrete elastro-plasticity analysis
下载PDF
Fatigue behavior of crane beam strengthened with CFRP 被引量:2
6
作者 石启印 李爱群 惠卓 《Journal of Southeast University(English Edition)》 EI CAS 2007年第4期561-565,共5页
In order to study the fatigue behavior of the damaged reinforced concrete (RC) beams strengthened by carbon fiber reinforced polymer (CFRP) laminate, three T-shaped beams strengthened by CFRP and one contrasting b... In order to study the fatigue behavior of the damaged reinforced concrete (RC) beams strengthened by carbon fiber reinforced polymer (CFRP) laminate, three T-shaped beams strengthened by CFRP and one contrasting beam are tested under fatigue loading, with the parameters of different modes of strengthening and different fatigue load levels considered. The main results obtained from the tests are: the width of the crack decreases 50. 2% to 66%, and the development of the crack is limited; the stress of steel decreases 24. 1% to 28. 2%, and the stiffness increases 14.9% to 16. 1% after being strengthened. Based on the technical specification for strengthening concrete structures with CFRP and the conclusions from the tests, a calculating scheme of the flexure stiffness is given, which can be used for reference in engineering design. Finally, some suggestions are given for design in fatigue strengthening. 展开更多
关键词 RC crane beam structure strengthening fatigue test carbon fiber reinforced polymer (CFRP)
下载PDF
Reliability analysis for anchorage of reinforced concrete beams with longitudinal cracks due to corrosion at anchorage zone
7
作者 史波 赵国藩 《Journal of Southeast University(English Edition)》 EI CAS 2005年第3期336-341,共6页
An anchorage reliability analysis approach for simply supported reinforced concrete beams under corrosion attack in the anchorage zone is developed.The first-order second-moment method is employed to analyze the effec... An anchorage reliability analysis approach for simply supported reinforced concrete beams under corrosion attack in the anchorage zone is developed.The first-order second-moment method is employed to analyze the effects of various factors on the anchorage reliability.These factors include both the length and width of cover cracking due to reinforcement corrosion,the cover thickness,the anchorage length,and the stirrup ratio.The results show that the effect of corrosion-induced crack length on the reliability index for anchorage,β0,is negligible when the crack on the concrete surface is just appearing,but with the crack widening,the β0 value is reduced significantly;the considerable changes in β0 result from a variation in cover depth and anchorage length;the effect of changes in the diameter or space of stirrups on the anchorage resistance is very limited,and the variation in β0 is also very low. 展开更多
关键词 reinforcement corrosion bond behavior ANCHORAGE reinforced concrete structure corrosion-inducedcrack
下载PDF
Influence of chloride corrosion on tension capacity of rebars 被引量:2
8
作者 GHANOONI-BAGHA Mohammad 《Journal of Central South University》 SCIE EI CAS CSCD 2021年第10期3018-3028,共11页
The reinforcement corrosion is the pitting corrosion of chloride corrosion.Hence,in this study,the variations of reinforcement tensile strength due to stress concentration of pitting corrosion are analyzed.The stress ... The reinforcement corrosion is the pitting corrosion of chloride corrosion.Hence,in this study,the variations of reinforcement tensile strength due to stress concentration of pitting corrosion are analyzed.The stress concentration consequence of corrosion on the reinforcement tensile capacity is studied utilizing tension tests and creating different ABAQUS software models.According to the modelling in various corrosion depths,strength reduction is less than 5%in corrosion with pit radius to reinforcement diameter ratio up to 0.3 and for corrosions higher than 0.4,the measure of capacity reduction is increased more to 30%. 展开更多
关键词 reinforced concrete structure reinforcement tension testing stress concentration pitting corrosion
下载PDF
Dynamic behavior of reinforced concrete frame structure during construction 被引量:3
9
作者 田明革 易伟建 《Journal of Central South University of Technology》 EI 2008年第3期418-422,共5页
The effects of concrete's time-variant elastic modulus,casting structural components,assembling temporary shoring framework system,and shock by operating construction equipment on dynamic behavior of the reinforce... The effects of concrete's time-variant elastic modulus,casting structural components,assembling temporary shoring framework system,and shock by operating construction equipment on dynamic behavior of the reinforced concrete frame structure during construction were investigated. The dynamic tests of an eight-storey reinforced concrete frame structure during full-scaled stages of the sixth storey construction cycle were carried out by ambient vibration. Natural frequencies,corresponding mode shapes and damping ratio were determined by power spectrum processing the tested signal data in frequency domain. The changes of frequencies,mode shapes and damping ratios at different construction stages were given. The results show that natural frequencies and modal damping ratios reach the maximum at stage of casting fresh concrete,especially for higher modes. Modal damping ratios at each construction stage are less than 5% of those during usage. 展开更多
关键词 structural dynamics ambient vibration structure during construction mode shape natural frequency modal damping ratio
下载PDF
Strain coordination of quasi-plane-hypothesis for reinforced concrete beam strengthened by epoxy-bonded glass fiber reinforced plastic plate 被引量:4
10
作者 曾宪桃 丁亚红 王兴国 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2006年第4期391-394,共4页
The testing of thirteen reinforeed concrete (RC) beams strengthened by epoxy-bonded glass fiber reinforced plastic plate (GFRP) shows that the RC beam and the GFRP plate with epoxy bonding on it can work fairly we... The testing of thirteen reinforeed concrete (RC) beams strengthened by epoxy-bonded glass fiber reinforced plastic plate (GFRP) shows that the RC beam and the GFRP plate with epoxy bonding on it can work fairly well in coordination to eaeh other. But there is relative slipping between RC beam and GFRP plate. And the strain of GFRP and steel rebar of RC beam satisfies the quasi-plane-hypothesis, that is, the strain of longitudinal fiher that parallels to the neutral axis of plated beam within the scope of effective height ( h0 ) of the cross section is in direct proportion to the distance from the fiber to the neutral axis. The strain of GFRP and steel rebar satisfies the equation: εGFRP=Kεsteel. 展开更多
关键词 glass fiber reinforced plastic strengthening concrete beam quasi-plane-hypothesis
下载PDF
Degradation of bond between steel bar and freeze-thaw concrete after electrochemical chloride extraction 被引量:6
11
作者 郭育霞 贡金鑫 《Journal of Central South University》 SCIE EI CAS 2010年第2期388-393,共6页
The effect of electrochemical chloride extraction (ECE) on bond strength between steel bar and freeze-thaw concrete contaminated by chloride was experimentally investigated for beam specimens with dimensions of 100 ... The effect of electrochemical chloride extraction (ECE) on bond strength between steel bar and freeze-thaw concrete contaminated by chloride was experimentally investigated for beam specimens with dimensions of 100 mm × 100 mm × 400 ram. During the experiment, 3% NaC1 (vs mass of cement, mass fraction) was mixed into concrete to simulate chloride contamination, and the specimens experienced 0, 25, 50, 75 freeze-thaw cycles before ECE. In the process of ECE, different current densities and durations were adopted. It is indicated that the bond strength between reinforcement and concrete decreases with the increase of freeze-thaw cycles; the more the current and the electric quantity of ECE are, the more the loss of bond strength is; and the largest loss is up to 58.7%. So, it is important to choose proper parameters of ECE for the reinforced concrete structures contaminated by chloride and subjected to freeze-thaw cycles. 展开更多
关键词 CONCRETE bond strength DEGRADATION electrochemical chloride extraction freeze-thaw cycles
下载PDF
Effect of Ca(OH)_2, NaCl, and Na_2SO_4 on the corrosion and electrochemical behavior of rebar 被引量:2
12
作者 金祖权 赵霞 +2 位作者 赵铁军 侯保荣 刘影 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2017年第3期681-692,共12页
The corrosion of rebar in reinforced concrete in marine environments causes significant damage to structures built in ocean environments. Studies on the process and mechanism of corrosion of rebar in the presence of m... The corrosion of rebar in reinforced concrete in marine environments causes significant damage to structures built in ocean environments. Studies on the process and mechanism of corrosion of rebar in the presence of multiple ions may help to control damage and predict the service life of reinforced concrete structures in such environments. The effect of interactions between sulfate and chloride ions and calcium hydroxide on the electrochemical behavior ofrebar are also important for evaluation of structure durability. In this work, electrochemical impedance spectroscopy (EIS) plots of rebar in Ca(OH)2 solution and cement grout, including NaC1 and Na2SO4 as aggressive salts, were measured for different immersion times. The results show that corrosion of rebar was controlled by the rate of charge transfer as the rebar was exposed to chloride solution. In the presence of high concentrations of sulfate ions in the electrolyte, generation and dissolution of the passive film proceeded simultaneously and corrosion was mainly controlled by the diffusion rate. When Na2SO4 and NaC1 were added to Ca(OH)2 solution, the instantaneous corrosion rate decreased by a factor of 10 to 20 as a result of the higher pH of the corroding solution. 展开更多
关键词 REBAR CORROSION CHLORIDE SULFATE electrochemical impedance spectroscopy
下载PDF
Analytic model of non-uniform corrosion induced cracking of reinforced concrete structure 被引量:4
13
作者 张小刚 王学志 +1 位作者 卢朝辉 邢锋 《Journal of Central South University》 SCIE EI CAS 2011年第3期940-945,共6页
In order to perfectly reflect the dynamic corrosion of reinforced concrete (RC) cover in practical engineering,an analytic model of non-uniform corrosion induced cracking was presented based on the elastic-plastic fra... In order to perfectly reflect the dynamic corrosion of reinforced concrete (RC) cover in practical engineering,an analytic model of non-uniform corrosion induced cracking was presented based on the elastic-plastic fracture mechanics theory.Comparisons with the published experimental data show that the predictions given by the present model are in good agreement with the results both for natural exposed experiments and short-time indoor tests (the best difference is about 2.7%).Also it obviously provides much better precision than those models under the assumption of uniform corrosion (the maximal improved precision is about 48%).Therefore,it is pointed out that the so-called uniform corrosion models to describe the cover cracking of RC should be adopted cautiously.Finally,the influences of thickness of local rusty layer around the reinforcing steel bar on the critical corrosion-induced crack indexes were investigated.It is found that the thickness of local rusty layer has great effect on the critical mass loss of reinforcing steel,threshold expansion pressure,and time to cover cracking.For local rusty layer thickness with a size of a=0.5 mm,the time to cover cracking will increase by about one times when a/b (a,semi-minor axis;b,semi-major axis) changes from 0.1 to 1 mm. 展开更多
关键词 reinforced concrete non-uniform corrosion induced cracking dynamic cracking local rusty layer stress intensity factor
下载PDF
Durability related environmental zonation and design methodology for marine RC structures 被引量:1
14
作者 Wu Hairong Lü Qingfang Jin Weiliang 《Journal of Southeast University(English Edition)》 EI CAS 2018年第1期78-86,共9页
A reliability-based quantitative durability design methodology is presented for reinforced concrete(RC)structures in the marine environment on the basis of natural exposure data derived from four berths(1.5,1.5,4 and ... A reliability-based quantitative durability design methodology is presented for reinforced concrete(RC)structures in the marine environment on the basis of natural exposure data derived from four berths(1.5,1.5,4 and 15 years)of a concrete port.More than 200 chloride profiles are obtained and analyzed.The relationship between nominal surface chloride ion concentration and altitude is discussed.Subsequently,the formula of the apparent chloride diffusion coefficient is proposed with consideration of the surrounding temperature,sodium chloride solution concentration,age factor and altitude.Then,the reliability-based method to predict the durability of RC structures is developed according to Fick s second law.Relationships between the predicted penetration depth of the chloride ion,the ratio of the wetting time per-period and the corresponding altitude are discussed.Subsequently,the environmental zonation methodology is established for concrete structures under a marine chloride environment by considering the ratio of the wetting time per-period of concrete as the zoning index.Finally,the corres-ponding durability design method for each zone level is established,which contains the durability design regulations of the specimen,and correction coefficients for different water/binder ratios,ages,temperatures and chloride ion concentrations. 展开更多
关键词 reinforced concrete structure MARINE chloride ion ENVIRONMENT ZONATION durability design
下载PDF
DAMAGE LOCATION DUE TO CORROSION IN REINFORCED CONCRETE STRUCTURES 被引量:1
15
作者 WUJin ChengJi-xin LUMing-sheng 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2004年第4期281-285,共5页
An investigation on damage location due to the corrosion in reinforced concrete structures is conducted. The frequency change square ratio is used as a parameter for the damage. It is theoretically verified that the p... An investigation on damage location due to the corrosion in reinforced concrete structures is conducted. The frequency change square ratio is used as a parameter for the damage. It is theoretically verified that the parameter is a function of the damage location. Experimental results of the corrosion in reinforced concrete structures show that the predicted damage location is in agreement with the real damage location. The modal parameters are used to detect the damages in structural concrete elements, and so they are useful for structural appraisal. 展开更多
关键词 reinforced concrete structures CORROSION damage location modal frequency
下载PDF
Electrical resistance stability of high content carbon fiber reinforced cement composite 被引量:1
16
作者 杨再富 《Journal of Chongqing University》 CAS 2005年第1期19-22,共4页
The influences of curing time, the content of free evaporable water in cement paste, environmental temperature, and alternative heating and cooling on the electrical resistance of high content carbon fiber reinforced ... The influences of curing time, the content of free evaporable water in cement paste, environmental temperature, and alternative heating and cooling on the electrical resistance of high content carbon fiber reinforced cement (CFRC) paste are studied by experiments with specimens of Portland cement 42.5 with 10 mm PAN-based carbon fiber and methylcellulose. Experimental results indicate that the electrical resistance of CFRC increases relatively by 24% within a hydration time of 90 d and almost keeps constant after 14 d, changes hardly with the mass loss of free evaporable water in the concrete dried at 50 °C, increases relatively by 4% when ambient temperature decreases from 15 °C to ?20 °C, and decreases relatively by 13% with temperature increasing by 88 °C. It is suggested that the electric resistance of the CFRC is stable, which is testified by the stable power output obtained by electrifying the CFRC slab with a given voltage. This implies that such kind of high content carbon fiber reinforced cement composite is potentially a desirable electrothermal material for airfield runways and road surfaces deicing. 展开更多
关键词 carbon fiber reinforced cement electrical resistance STABILITY ELECTROTHERMAL
下载PDF
Probability calculation of rebars corrosion in reinforced concrete using css algorithms 被引量:3
17
作者 Mohsen-Ali Shayanfar Mohammad-Ali Barkhordari Mohammad Ghanooni-Bagha 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第8期3141-3150,共10页
Reinforcement inside the concrete is protected from corrosion and its damages until several years after the construction. After corrosion initiation, the cross section of reinforcement begins to reduce and often load ... Reinforcement inside the concrete is protected from corrosion and its damages until several years after the construction. After corrosion initiation, the cross section of reinforcement begins to reduce and often load bearing of the reinforced concrete structure will be reduced significantly. Corrosion of reinforcements in concrete in polluted and contaminated areas can occur in two ways: chloride and carbonation. In this work, meta-heuristic approach of charged system search(CSS) is used to calculate corrosion occurrence probability due to chloride ions penetration. The model efficiency is verified by comparing the available examples in technical literature and results of Monte Carlo analysis. According to the analyses performed, using different probabilistic distributions regardless of probabilistic moments based on real distribution leads to diverse results. In addition, influence of each effective parameter in corrosion occurrence varies by changing other parameters. 展开更多
关键词 reinforced concrete reliability index chloride diffusion CARBONATION charged system search (CSS) optimization
下载PDF
Statistical Algorithm for Damage Detection of Concrete Beams Based on Piezoelectric Smart Aggregate 被引量:4
18
作者 蒙彦宇 阎石 《Transactions of Tianjin University》 EI CAS 2012年第6期432-440,共9页
The functional piezoelectric ceramic smart aggregate(SA) sensors and actuators,based on piezoelectric ceramic materials such as lead zirconium titanate(PZT),were embedded into the reinforced concrete beams with three-... The functional piezoelectric ceramic smart aggregate(SA) sensors and actuators,based on piezoelectric ceramic materials such as lead zirconium titanate(PZT),were embedded into the reinforced concrete beams with three-point bending under static loading for purposes of damage detection.The SA actuators generated the desired sine sweep excitation signals online and the SA sensors received and detected real-time signals before and after damage.The wavelet analysis and statistical characteristics about damage signals were used as a signal processing and analysis tool to extract the optimal damage information and establish a statistical damage detection algorithm.The damage index-based wavelet analysis and damage probability-based probability and statistics were proposed by PZT wavebased theory and active health monitoring technology.The results showed that the existence of cracks inside largely attenuated the amplitude of active monitoring signal after the damage of beam and the attenuation was related to the severity degree of damage.The innovative statistical algorithm of damage pattern detection based PZT-SA can effectively determine damage probability and damage degree,and provide a prediction for the critical damage location of reinforced concrete structures.The developed method can be utilized for the structural health comprehensive monitoring and damage detection on line of various large-scale concrete structures. 展开更多
关键词 piezoelectric ceramic smart aggregate active health monitoring damage detection statistical analysis
下载PDF
Performance-based seismic financial risk assessment of reinforced concrete frame structures 被引量:5
19
作者 吴巧云 朱宏平 樊剑 《Journal of Central South University》 SCIE EI CAS 2012年第5期1425-1436,共12页
Engineering facilities subjected to natural hazards(such as winds and earthquakes) will result in risk when any designed system(i.e.capacity) will not be able to meet the performance required(i.e.demand).Risk might be... Engineering facilities subjected to natural hazards(such as winds and earthquakes) will result in risk when any designed system(i.e.capacity) will not be able to meet the performance required(i.e.demand).Risk might be expressed either as a likelihood of damage or potential financial loss.Engineers tend to make use of the former(i.e.damage).Nevertheless,other non-technical stakeholders cannot get useful information from damage.However,if financial risk is expressed on the basis of probable monetary loss,it will be easily understood by all.Therefore,it is necessary to develop methodologies which communicate the system capacity and demand to financial risk,Incremental dynamic analysis(IDA) was applied in a performance-based earthquake engineering context to do hazard analysis,structural analysis,damage analysis and loss analysis of a reinforced concrete(RC) frame structure.And the financial implications of risk were expressed by expected annual loss(EAL).The quantitative risk analysis proposed is applicable to any engineering facilities and any natural hazards.It is shown that the results from the IDA can be used to assess the overall financial risk exposure to earthquake hazard for a given constructed facility.The computational IDA-EAL method will enable engineers to take into account the long-term financial implications in addition to the construction cost.Consequently,it will help stakeholders make decisions. 展开更多
关键词 performance-based earthquake engineering (PBEE) incremental dynamic analysis (IDA) seismic risk analysis expected annual loss (EAL) seismic financial risk
下载PDF
Analytical Modeling for Corrosion-Induced Cover Cracking of Corrosive Reinforced Concrete Structures 被引量:2
20
作者 张小刚 王娇 周英武 《Transactions of Tianjin University》 EI CAS 2012年第4期285-290,共6页
An analytical model for predicting the corrosion-induced cracking of concrete cover of reinforced concrete(RC) structures was developed.The effects of influence factors such as practical initial defects,corrosion rate... An analytical model for predicting the corrosion-induced cracking of concrete cover of reinforced concrete(RC) structures was developed.The effects of influence factors such as practical initial defects,corrosion rate,strength and elastic modulus of concrete on the corrosion-induced cracking of concrete cover were investigated.It was found that the size of practical initial defects was the most effective factor.Therefore,improving the compactness of concrete is an effective way to improve the durability of RC structures.It was also demonstrated that the accelerated corrosion tests may be unfavorable in the study of the relationship between cracking time and crack width. 展开更多
关键词 initial crack width corrosion-induced cracking RC structure analytical model
下载PDF
上一页 1 2 4 下一页 到第
使用帮助 返回顶部