Study on Experimental of Waste Cathode Ray Tube Glass Fine Aggregate in Barite Concrete
作者：
Shi, Jianjun;Wang, Can* ;Zhang, Zhiheng;Liu, Hualiang;Yang, Xiaofeng;...
期刊：
IOP Conference Series: Earth and Environmental Science ,2020年446(2):022037 ISSN：1755-1307
通讯作者：
Wang, Can
作者机构：
[Shi, Jianjun; Yang, Xiaofeng; Ling, Yan; Li, Qi; Wang, Can; Liu, Hualiang; Zhang, Zhijun; Zhang, Zhiheng] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Wang, Can] U;Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
会议名称：
5th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE)
会议时间：
DEC 06-08, 2019
会议地点：
Chongqing, PEOPLES R CHINA
会议主办单位：
[Shi, Jianjun;Wang, Can;Zhang, Zhiheng;Liu, Hualiang;Yang, Xiaofeng;Ling, Yan;Li, Qi;Zhang, Zhijun] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
关键词：
Aggregates;Barite;Cathode ray tubes;Cathode rays;Cathodes;Compressive strength;Concrete aggregates;Energy conservation;Gamma rays;Glass;Particle size;Experimental research;Fine aggregates;Passage time;Working performance;Concretes
摘要：
<jats:title>Abstract</jats:title>
<jats:p>In order to study the waste cathode ray tube glass fine aggregate (particle size < 0.15 mm) on barite concreteperformance, the waste cathode ray tube glass fine aggregate is blended into the barite concrete at 0%, 4%, 6%, 8%, and 10% of the mass of the barite sand quality to conduct experimental research on the related properties of barite concrete. The experimental results show that when the amount of waste cathode ray tube glass fine aggregate is 6%∼8%, the prepared barite concrete has the best working performance. The slump expansion reaches 560mm×560mm, and the 28d cube compressive strength is 37.76MPa. The V-box passage time is 17.56s, and barite concrete has the best shielding gamma ray capability.</jats:p>
语种：
英文
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An investigation on physical, mechanical, leaching and radiation shielding behaviors of barite concrete containing recycled cathode ray tube funnel glass aggregate
作者：
Liu, Hualiang;Shi, Jianjun;Qu, Huiqiong;Ding, Dexin*
期刊：
Construction and Building Materials ,2019年201:818-827 ISSN：0950-0618
通讯作者：
Ding, Dexin
作者机构：
[Ding, Dexin; Shi, Jianjun; Liu, Hualiang] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.;[Ding, Dexin; Shi, Jianjun; Liu, Hualiang] Cent S Univ, Sch Resources & Safety Engn, Changsha 410083, Hunan, Peoples R China.;[Ding, Dexin; Qu, Huiqiong] Univ South China, Nucl Resources Engn Coll, Hengyang 421001, Peoples R China.
通讯机构：
[Ding, Dexin] U;Univ South China, Nucl Resources Engn Coll, Hengyang 421001, Peoples R China.
关键词：
Alkali-silica reaction expansion;Barite concrete;Dry shrinkage;Funnel glass;Lead leaching;MCNP;Physical and mechanical behaviors;Radiation shielding;Waste cathode ray tube;XCOM
摘要：
In order to explore the feasibility of using hazardous waste cathode ray tube (CRT) funnel glass to replace high density mineral aggregates in the radiation shielding concrete, various barite concrete samples were prepared with portland cement, ground funnel glass sand as the substitute for barite aggregates, and fly ash as mineral admixtures, and the rates of funnel glass for fine and coarse (5–10 mm) barite aggregate were 25%, 50%, 75%, 100% and 10%, 20%, 30%, respectively. The work performance, mechanical properties, dry shrinkage, alkali-silica reaction (ASR) expansion and lead leaching were investigated, and the γ-ray attenuation coefficients were obtained by experiment, XCOM program and MCNP code. The results show that the slump, ASR expansion and lead leaching of the concrete increase while its apparent density, mechanical properties, dry shrinkage, and γ-ray shielding properties decrease with the increase of the rate of funnel glass. Adding fly ash to the concrete can inhibit the leaching of Pb, and reduce the ASR expansion. The concrete samples with 25–50% fine funnel glass sand or 10–20% 5–10 mm coarse aggregate have good performances. The results show that it's efficient, economical and environmental-benign to use funnel glass to produce the high density radiation shielding concrete. © 2019 Elsevier Ltd
语种：
英文
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不同粒径废阴极射线管玻璃砂对混凝土性能的影响试验
作者：
石建军;廖校;张志恒;杨晓峰;凌颜;...
期刊：
硅酸盐通报 ,2019年38(4):1191-1195 ISSN：1001-1625
作者机构：
南华大学土木工程学院,衡阳,421001;[杨晓峰; 凌颜; 廖校; 张志恒; 石建军; 王言曦; 王灿] 南华大学
关键词：
废阴极射线管玻璃砂;粒径;流动性;防辐射混凝土
摘要：
为了研究不同粒径废阴极射线管玻璃（Cathode Ray Tube,简称:CRT）玻璃纱对混凝土性能的影响,采用四种最大粒径CRT废玻璃砂取代25%的河砂,同时掺入20%粉煤灰作为矿物掺合料配制成防辐射混凝土,并开展了混凝土相关性能的研究。结果表明:CRT废玻璃砂增大了混凝土的坍落度、表观密度,使得碱骨料反应膨胀率增大,混凝土抗压强度减小,混凝土屏蔽性能增强。随着最大粒径的减小,混凝土的坍落度、表观密度减小,立方体抗压强度先增大后减小,当最大粒径为2. 36 mm时,立方体抗压强度达到最大值,碱骨料反应膨胀率减小,混凝土的防辐射效果有所增强。
语种：
中文
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回收CRT锥玻璃部分替代高密度磁铁矿砂在防辐射混凝土中应用的可行性
作者：
Liu, Hua-liang;Shi, Jian-jun;Qu, Hui-qiong;Ding, De-xin*
期刊：
中国有色金属学报(英文版) ,2019年29(4):831-839 ISSN：1003-6326
通讯作者：
Ding, De-xin
作者机构：
[Shi, Jian-jun; Liu, Hua-liang; Ding, De-xin] Cent S Univ, Sch Resources & Safety Engn, Changsha 410083, Hunan, Peoples R China.;[Shi, Jian-jun; Liu, Hua-liang] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.;[Qu, Hui-qiong; Ding, De-xin] Univ South China, Sch Nucl Resources Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Ding, De-xin] C;[Ding, De-xin] U;Cent S Univ, Sch Resources & Safety Engn, Changsha 410083, Hunan, Peoples R China.;Univ South China, Sch Nucl Resources Engn, Hengyang 421001, Peoples R China.
关键词：
cathode ray tube;funnel glass;concrete;gamma-ray;radiation shielding;mechanical properties;Monte-Carlo N-Particle simulation
摘要：
The recycled cathode ray tube (CRT)funnel glass was used as replacement of magnetite sand in the concrete, and its mass replacement rates were 0, 20%, 40% and 60%, respectively. The flowability, apparent density and mechanical properties of the radiation shielding concrete were investigated, while its γ-ray radiation shielding parameters such as linear and mass attenuation coefficients (μ and μm, respectively), thickness values of half-value layer (hHVL)and tenth-value layer (hTVL)were obtained by theoretical calculation, experiment and Monte−Carlo N-Particle (MCNP)simulation code. The experimental results show that the flowability of the concrete increases significantly, whilst its apparent density, compressive strength and static elastic modulus decrease slightly. The calculated, simulated and experimental μm, μ, hHVL and hTVL values of all concrete samples are very consistent at the same γ-ray photon energy, and it is feasible to use MCNP code to simulate γ-ray radiation shielding parameters of materials. The calculated results show that in a wide range of γ-ray photon energy, the μm value of the concrete with CRT funnel glass replacing magnetite sand is improved effectively, and its radiation shielding performances are the same as those of the control concrete (M−1). By comprehensively comparing the flowability, mechanical properties and γ-ray radiation shielding properties, the concrete samples with 20%−40% funnel glass as fine aggregate have good performances. © 2019 The Nonferrous Metals Society of China
语种：
英文
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Back Analysis of Self-Compacting Concrete Rheological Parameters Based on H-B Model
作者：
Zeng, Shuai* ;Shi, Jianjun* ;Guo, Wenqiang*
作者机构：
[Zeng, Shuai; Shi, Jianjun; Guo, Wenqiang; Zeng, S] Univ South China, Sch Urban Construct, Hengyang 421001, Hunan, Peoples R China.
会议名称：
International Conference on Architectural, Civil and Hydraulics Engineering (ICACHE)
会议时间：
NOV 28-29, 2015
会议地点：
Guangzhou, PEOPLES R CHINA
会议主办单位：
[Zeng, Shuai;Shi, Jianjun;Guo, Wenqiang] Univ South China, Sch Urban Construct, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
AER-Advances in Engineering Research
关键词：
H-B rheological model;fresh self-compacting concrete;back analysis;L-box;V-funnel
摘要：
The rheological parameters of Fresh SCC were examined through the theory of rheology, the rheological model of Fresh SCC was assumed to be H-B rheological model, the flowing time T-i' of Fresh SCC in the simulated L-box through Fluent, later compared with the flowing time T-i of Fresh SCC in the actual L-box, the target function was established according to the least square method, three rheological parameters tau(0), k and n were optimized performing the pattern search method, and 6 sets of rheological parameters of tau(0), k and n acquired from the back analysis underwent the V-funnel verification test, which demonstrates the feasibility to back-analyze the H-B model rheological parameters to some extent.
语种：
英文
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废弃阴极射线管玻璃对重晶石混凝土性能的影响
作者：
石建军;丁德馨;栗建新;刘华良;张志恒;...
期刊：
建筑材料学报 ,2016年19(2):369-372 and 384 ISSN：1007-9629
通讯作者：
Ding, Dexin(dingdxzz@163.com)
作者机构：
[丁德馨; 石建军] School of Resources and Safety Engineering, Central South University, Changsha, 410083, China;[张志恒; 丁德馨; 栗建新; 石建军; 刘华良; 刘权] School of Urban Construction, University of South China, Hengyang, 421001, China
通讯机构：
School of Resources and Safety Engineering, Central South University, Changsha, China
关键词：
阴极射线管玻璃;重晶石混凝土;防辐射;性能
摘要：
将废弃的阴极射线管玻璃(CRT玻璃)磨碎后作为细、粗骨科,分别以质量分数0％,25％,50％,75％,100％取代重晶石细骨料或以质量分数0％,10％,20％,30％取代5～10 mm的重晶石粗骨料掺入重晶石混凝土中,并以粉煤灰作为矿物掺合料,研究CRT玻璃骨料对重晶石混凝土工作性能、力学性能、碱骨料反应、Pb浸出值和对γ射线屏蔽能力的影响.结果表明:随着CRT玻璃骨料取代率的增加,重晶石混凝土的坍落度、Pb浸出值逐渐增大,抗压强度、劈拉强度、弹性模量、防辐射性能逐渐减小.当用CRT玻璃骨料取代质量分数为10％的5～10 mm的重晶石粗骨料或25％的重晶石细骨料时,重晶石混凝土各种性能良好.
语种：
中文
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Fly Ash on the Waste Cathode Ray Tube Glass Mortar Alkali Aggregate Reaction Inhibition Studies
作者：
Song, Xue* ;Shi, Jianjun* ;Chen, Zhaoyu*
作者机构：
[Song, Xue; Shi, Jianjun; Chen, Zhaoyu; Song, X] Univ South China, Sch Urban Construct, Hengyang, Hunan, Peoples R China.
会议名称：
International Conference on Architectural, Civil and Hydraulics Engineering (ICACHE)
会议时间：
NOV 28-29, 2015
会议地点：
Guangzhou, PEOPLES R CHINA
会议主办单位：
[Song, Xue;Shi, Jianjun;Chen, Zhaoyu] Univ South China, Sch Urban Construct, Hengyang, Hunan, Peoples R China.
会议论文集名称：
AER-Advances in Engineering Research
关键词：
Waste cathode ray tube glass;Alkali-aggregate reaction;Accelerated Mortar Bar Test;Fly ash
摘要：
With finely ground waste cathode ray tube glass sand, respectively replace 20%, 40%, 60% the proportion of ordinary sand in mortar, fly ash as mineral admixture in 0%, 10%, 20%, 30% the proportion of replacing cement. A total of 12 sets of mortar specimens were prepared. Use Accelerated Mortar Bar Test (ASTM1260) to measure mortar specimens alkali aggregate reaction expansion at 3D, 7D, 14D, 28D. The results show that: CRT glass is an alkali active substance, expansion will become larger with the increase of CRT glass content in the mortar specimen. Fly ash can restrain CRT glass mortar ASR expansion, all adding fly ash specimens 14D expansion rate is less than 0.1%, the swelling degree of restraint increases with the fly ash, ash up to 20% when we have been able to significantly restrain the expansion.
语种：
英文
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Experimental investigation of flow of fresh self-compacting concrete in improved L-box
作者：
Shan, Zhi* ;Yu, Zhiwu;Shi, Jianjun
期刊：
Construction and Building Materials ,2015年84:30-38 ISSN：0950-0618
通讯作者：
Shan, Zhi
作者机构：
[Shan, Zhi; Yu, Zhiwu] Cent S Univ, Sch Civil Engn, Changsha 410004, Hunan, Peoples R China.;[Shan, Zhi; Yu, Zhiwu] Natl Engn Lab High Speed Railway Construct Techno, Changsha 410004, Hunan, Peoples R China.;[Shi, Jianjun] Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.
通讯机构：
[Shan, Zhi] C;Cent S Univ, Sch Civil Engn, Changsha 410004, Hunan, Peoples R China.
关键词：
Dam break;Experimental results;Fresh self-compacting concrete;L-box test;Open channel flow
摘要：
To approach the rheological testing method based on L-box test for obtaining internal rheological parameters of fresh self-compacting concrete (SCC), an improved L-box without fiber bars and end wall is developed, and a flow investigation utilizing an image processing technique is operated. Specifically, the improved L-box test method is able to accurately reconstruct the process of free-surface evolution of fresh SCC when it is suddenly released in an open channel. The process involves the dam-break problem and open channel flow problem. In addition, by applying the image processing technique, the flow of fresh SCC in improved L-box (i.e. the front position of time-dependent and surge profile evolution), is easily observed and analyzed. By analyzing the experimental results, we conclude the time-dependent flow front position is governed by two regimes: an inertial regime and a pseudo-equilibrium regime. The flow surge plane is assumed to be divided into six flow zones (at the surge profile during the stable flow in pseudo-equilibrium regime). Simultaneously, a stable laminar flow zone is highlighted for further rheological solving. Additionally, by considering the fact of the most of the depth profiles in stable flow are convex curves in the experiment, a crude empirical fitting model is developed, and then the process of physical interpretation and verification is given. The comparison of results among improved L-box test and other tests shows that the improved L-box test is also available to test the workability parameters (i.e. penetrability, fillibility, et al.). Hence, this work is of significance for the further theoretical analysis and numerical simulation on the flow behaviors of the fresh SCC. The work may also interest the researchers who try to develop a convenient testing method in order to determine the rheological parameters of fresh SCC. ©2015 Elsevier Ltd.All rights reserved.
语种：
英文
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New Advance of the Rheological Properties Test of Fresh Self-Compacting Concrete Based on V-Funnel
作者：
Wu, Xianlei* ;Shi, Jianjun;Shan, Zhi
期刊：
Applied Mechanics and Materials ,2012年204-208:3776-3781 ISSN：1660-9336
通讯作者：
Wu, Xianlei
作者机构：
[Shi, Jianjun; Shan, Zhi; Wu, Xianlei] Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.
通讯机构：
[Wu, Xianlei] U;Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.
会议名称：
International Conference on Civil, Architectural and Hydraulic Engineering (ICCAHE 2012)
会议时间：
AUG 10-12, 2012
会议地点：
Zhangjiajie, PEOPLES R CHINA
会议主办单位：
[Wu, Xianlei;Shi, Jianjun;Shan, Zhi] Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.
会议论文集名称：
Applied Mechanics and Materials
关键词：
MATLAB image process technique;Rheological constants;SCC;V-Funnel
摘要：
This template is mainly about the analysis of mechanical property of SCC in a flow state in the V-Funnel. It aims to establish the testing formula of rheological constants by Engineering Fluid Mechanics, which can provide academic basis for V-Funnel test of SCC properties. MATLAB image process technique was introduced in the process which can greatly improve its precision and reliability. It can also provide a new train of thought to experimental data.
语种：
英文
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Study on the heterogeneity of concrete and its failure behavior using the equivalent probabilistic model
作者：
Tang, Xinwei;Zhou, Yuande;Zhang, Chuhan* ;Shi, Jianjun
期刊：
Journal of Materials in Civil Engineering ,2011年23(4):402-413 ISSN：0899-1561
通讯作者：
Zhang, Chuhan
作者机构：
[Tang, Xinwei] S China Univ Technol, Dept Hydraul & Hydropower Engn, Guangzhou 510641, Guangdong, Peoples R China.;[Zhang, Chuhan] Tsinghua Univ, Chinese Acad Sci, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China.;[Zhou, Yuande] Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China.;[Shi, Jianjun] Nanhua Univ, Dept Urban Construct, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Zhang, Chuhan] T;Tsinghua Univ, Chinese Acad Sci, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China.
关键词：
Compression tests;Concrete heterogeneity;Equivalent probabilistic model;Numerical simulation;Size effect;Compression testing;Dams;Failure analysis;Materials properties;Mathematical models;Numerical analysis;Size determination;Weibull distribution;Computer simulation;compaction;compressive strength;concrete;finite element method;heterogeneity;numerical model;probability;size effect;uniaxial test;Weibull theory
摘要：
Taking the heterogeneity character of concrete into account, this paper presents an equivalent probabilistic model for failure study of concrete in which the heterogeneity of concrete is considered by assuming that the material properties conform to the Weibull distribution law and by using mesoscale mesh of finite elements. The study is divided into three parts. In the first part, a spatial correlation length factor is developed into the Weibull distribution formula so that the spatial correlation of local continuity of material properties can be considered. The second part presents a series of numerical analyses for investigating the size effect of self-compacting concrete (SCC) based on the equivalent probabilistic model, and a comparison is made between the simulation results and compression test measurements for illustrating the size effect on uniaxial compression strength and failure pattern of the SCC concerned. It is shown that the numerical model can provide reasonable predictions in the analysis of the size effect of SCC. In the final part, as an engineering application of the presented model, the damage and fracture behavior of the Koyna gravity dam during the 1967 earthquake are analyzed. Influences of concrete parameters on the crack pattern and failure modes of the dam prototype during the event are discussed. © 2011 American Society of Civil Engineers.
语种：
英文
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Adaptive neuro-fuzzy inference approach for back analysis of workability
作者：
Shan Zhi;Shi Jianjun;Xiong En;Wu Xianlei
期刊：
Applied Mechanics and Materials ,2011年66-68:1348-1355 ISSN：1660-9336
通讯作者：
Zhi, S.(shanzhi009@163.com)
作者机构：
[Xiong En; Shi Jianjun; Zhi S.; Wu Xianlei] School of Urban Construction, University of South China, China
通讯机构：
[Zhi, S.] S;School of Urban Construction, China
会议名称：
International Conference on Mechanical Materials and Manufacturing Engineering (ICMMME 2011)
会议时间：
JUN 20-22, 2011
会议地点：
Nanchang, PEOPLES R CHINA
会议论文集名称：
Applied Mechanics and Materials
关键词：
ANFIS;Back analysis;Rheology;Self-compacting concrete;Workability
摘要：
The usual research method, on rheology of fresh self-compacting concrete, is that the regression models between rheological parameters and workability were established, and then the rheological test was operated to control fresh SCC. But, there is no rheometer used widely on site, already. So this paper developed an adaptive neuro-fuzzy inference approach of the back analysis of workability on fresh SCC rheology, and workability tests can be taken to inverse the rheological parameters, by adaptive neuro-fuzzy inference system. In order to check the correctness of this approach, a rheological problem of fresh SCC was solved by it, and the inversion results were in good agreement with the rheological parameters, and the predication accuracy of ANFIS models was quite sufficient to meet the engineering requirement.
语种：
英文
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自密实堆石混凝土力学性能的细观仿真与试验研究
作者：
唐欣薇;石建军;张志恒;张楚汉
期刊：
水利学报 ,2009年40(7):844-849+857 ISSN：0559-9350
通讯作者：
Tang, X.-W.(tangxw03@mails.tsinghua.edu.cn)
作者机构：
[唐欣薇; 张楚汉] Tsinghua University, Beijing 100084, China;[石建军; 张志恒] Nanhua University, Hengyang 421001, China
通讯机构：
Tsinghua University, China
关键词：
堆石混凝土;细观力学;本构试验;自密实混凝土;数值模拟;试验研究
摘要：
本文基于混凝土细观力学模型,将自密实堆石混凝土离散为自密实混凝土、块石及两者交界面3个组分构成的多相介质,建立了数值仿真模型.通过三相介质力学参数的基础性试验,分别取得3个组分的强度与本构关系.为检验模型可靠性进行了多组四点弯梁抗折试验.将细观仿真分析结果与试验进行了验证比较.结果表明,该模型能较好地模拟自密实堆石混凝土抗折试验全过程,得到的力-位移曲线及破坏形态与试验结果表现出良好的一致性.
语种：
中文
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A multiphase mesostructure mechanics approach to the study of the fracture-damage behavior of concrete
作者：
Tang KnWei;Zhang ChuHan* ;Shi JianJun
期刊：
Science in China Series E-Technological Sciences ,2008年51(2):8-24 ISSN：1006-9321
通讯作者：
Zhang ChuHan
作者机构：
[Zhang ChuHan; Tang KnWei] Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China.;[Shi JianJun] Nanhua Univ, Dept Urban Construct, Hengyang 421001, Peoples R China.
通讯机构：
[Zhang ChuHan] T;Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China.
关键词：
concrete;multiphase mesostructure mechanics;numerical simulation;experimental research
摘要：
A multiphase mesostructure mechanical model is proposed to study the deformation and failure process of concrete considering its heterogeneity at the meso scopic level. Herein, concrete is taken as a type of three-component composite material composed of mortar matrix, aggregates and interfaces on the meso-scale. First, an efficient approach to the disposition of aggregates of concrete and a state matrix method to generate mesh coordinates for aggregates are proposed. Secondly, based on the nonlinear continuum damage mechanics, a meso-scale finite element model is presented with damage softening stress-strain relationship for describing the mechanical behavior of different components of concrete. In this method, heterogeneities of each component in the concrete are considered by assuming the material properties of three components conform to the Weibull distribution law. Finally, based on this multiphase meso-mechanics model, a simulation analysis of fracture behavior of a rock-fill concrete (RFC) beam is accomplished. The study includes experimental tests for determining basic mechanical parameters of three components of RFC and four-point flexural beam tests for verification of the model. It is preliminarily shown that the numerical model is applicable to studying failure mechanisms and process of concrete type material. ©2008 Science in China Press and Springer-Verlag GmbH.
语种：
英文
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卵石混凝土阻尼比研究
作者：
柯国军;张海捷;陈振富;杨晓锋;石建军
期刊：
武汉理工大学学报 ,2007年29(10):5-7 ISSN：1671-4431
通讯作者：
Ke, G.-J.(kegj320@sina.com)
作者机构：
南华大学城市建设学院,衡阳,421001;[张海捷; 陈振富; 柯国军; 杨晓锋; 石建军] 南华大学
通讯机构：
School of Urban Construction, Nanhua University, China
会议名称：
中国颗粒学会超微颗粒专业委员会第五届年会
会议时间：
2007-06-26
会议地点：
武汉
会议论文集名称：
中国颗粒学会超微颗粒专业委员会第五届年会论文集
关键词：
混凝土;界面;弱化处理;阻尼比
摘要：
用长方体试件采用悬挂自由振动方式来测定卵石混凝土的阻尼比,研究了卵石混凝土阻尼比与强度、响应频率等参数之间的关系,并通过对卵石表面进行涂油弱化处理,测试处理前后混凝土阻尼比变化情况,为研究混凝土界面与阻尼比之间关系打下了一定的基础.
语种：
中文
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自密实混凝土充填堆石体试验研究
作者：
安雪晖;金峰;石建军
期刊：
混凝土 ,2005年(1):3-6,42 ISSN：1002-3550
作者机构：
清华大学水利系,北京,100084;南华大学建工学院,湖南,衡阳,421001;[金峰; 安雪晖] 清华大学;[石建军] 南华大学
关键词：
自密实混凝土;堆石体;堆石混凝土;低水泥用量
摘要：
本文利用自密实混凝土高流动抗分离的性能,借鉴已广泛应用的压浆混凝土施工方式,提出一种新的混凝土施工方式,即利用自密实混凝土充填预先放置的堆石体,待自密实混凝土硬化后与堆石一起形成堆石混凝土.为了检验自密实混凝土充填堆石体的施工工艺的可行性,验证堆石混凝土硬化后的强度性能,本文设计并实施了堆石混凝土充填试验,利用低水泥用量自密实混凝土对堆石体进行充填,初步验证了堆石混凝土的性能,为这种新型的混凝土施工方式打下了基础.
语种：
中文
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灰色系统理论在矿山安全事故预测中的应用
作者：
杨建明;石建军;赵和仲;熊韶峰
期刊：
矿业研究与开发 ,2004年24(1):56-58 ISSN：1005-2763
作者机构：
南华大学建工与资源环境学院,湖南,衡阳市,421001;[熊韶峰; 石建军; 杨建明; 赵和仲] 南华大学
关键词：
安全生产;安全事故;生产能力;灰色预测;预测模型
摘要：
对某铅锌矿近10年来的安全事故资料进行了详细分析与研究,认为每年3月是事故高发期,而且随矿山生产能力提高,往往出现安全事故大幅上升.同时应用灰色系统理论,预测矿山2003～2005年每年可能出现10～12次安全事故,指出必须及时加强安全教育,强化安全管理,才可以防患于未然.
语种：
中文
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砖砌体旧房墙上直接开洞的探讨
作者：
石建军;卜乐奇
期刊：
南华大学学报(自然科学版) ,1998年(01):56-60 ISSN：1673-0062
作者机构：
中南工学院建筑工程系!衡阳;421001;长沙交通学院!长沙;410076
关键词：
砖砌体;墙体;旧房改造;开洞
摘要：
本文对砖砌体房屋墙上直接开洞的受力机理进行了分析，根据规范推导出了墙体开洞的容许净宽和支座截面面积的计算公式，列出了应用表格，并用实际工程验算了可靠性。
语种：
中文
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钢筋混凝土叠合框架顶层角节点的静力性能研究
作者：
石建军;黄赛超;沈祖炎
期刊：
南华大学学报(自然科学版) ,1997年(02):19-27 ISSN：1673-0062
作者机构：
中南工学院建筑工程系!衡阳;421001;同济大学!上海;200092
关键词：
钢筋混凝土;叠合框架;角节点;梁筋锚固;有限元
摘要：
本文以纵向受拉钢筋配筋率以及纵向受拉钢筋在节点内不同搭接形式为主要变量，通过6榀足尺钢筋混凝土叠合框架时负弯矩作用下的顶层角节点的静力性能进行了试验研究，并对节点的受力性能进行了二维非线性有限元模拟分析，最后根据实验及分析结果提出了支座汉钢筋的锚固构造．
语种：
中文
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预应力钢筋混凝土叠合框架的非线性分析
作者：
石建军;黄赛超;沈祖炎
期刊：
南华大学学报(自然科学版) ,1997年(01):13-20 ISSN：1673-0062
作者机构：
中南工学院建筑工程系!衡阳;421001;同济大学!上海;200092
关键词：
叠合框架;预应力;钢筋混凝土;非线性分析
摘要：
应用平面非线性有限元对叠合框架进行了全过程分析，考虑了二阶段成型二次受力的特性和混凝土受拉应力-应变曲线的下降段，使用了Liu等人模式的混凝土破坏准则，编制了Fortran程序，并通过框架实验验证了计算方法和程序计算的可靠性．
语种：
中文
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大挠度复合夹心板弯曲问题的半解析有限元法
作者：
唐建民;石建军
期刊：
南华大学学报(自然科学版) ,1995年(1):45-52 ISSN：1673-0062
作者机构：
中南工学院建筑工程系
关键词：
半解析有限元;大挠度;复合材料;夹心板;弯曲
摘要：
本文首先对复合材料夹心板进行了刚度分析，建立了其等效组合刚度系数，然后，利用半解析有限元法沿板宽度方向进行有限元离散，而沿长度方向采用深梁振型函数，建立了位移函数，推导了大挠度情况下的平衡方程，通过实例计算，本文方法精度较高且自由度少。
语种：
中文
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