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Administrated by The Education Department of Jilin Province
Sponsored by Jilin Jianzhu University
Editor-in-Chief: CHEN Lei
Edited and Published by Editorial Department of Journal of
Jilin Jianzhu University
Address: 5088 Xincheng Street, Changchun, China
Postcode: 130118
ISSN 2095-8919
CN 22-1413/TU
Tel: +86-431-84566046
E-mail: jljzdxxb@jlju.edu.cn
Website: https//jljz.cbpt.cnki.net/portal
Research progress on RFID technology for intelligent monitoring
Wang Qi'ang;Qiu Shuo;Ni Yiqing;Zhou Mingli;Sun Fayuan;Shen Hui;Li Xianzhi;Li Shengyuan;Feng Wangsheng;With the rapid development of the internet of things and intelligent sensing technologies, the integration of radio frequency identification devices(RFID) and intelligent monitoring technologies has demonstrated significant application value in fields such as structural health monitoring and industrial automation. The tags of RFID technology have characteristics such as passivity and wireless communication. RFID technology achieves non-contact data collection and target identification through radio frequency signals. Combined with distributed sensor networks(such as optical fiber sensors, piezoelectric sensors and strain sensors), it can monitor the mechanical performance changes of buildings, Bridges and other structures in real time. Meanwhile, intelligent monitoring technology, relying on computer vision, deep learning and multi-source data fusion algorithms, can conduct high-precision identification and risk assessment of structural damage, cracks and deformations. In the field of structural health monitoring, the collaborative deployment of RFID tags and intelligent sensors can achieve long-term low-power perception of the structural state. The current technical challenges mainly include multipath interference suppression of RFID signals in complex environments, data synchronization and fusion of multimodal sensors, and lightweight deployment of intelligent monitoring algorithms on edge devices, etc.
Research on the bearing characteristics and progressive failure modes of cantilever retaining walls based on discrete element method
Mao Shuaidong;Wang Zhijie;In order to study the bearing mechanism and damage mode of cantilevered retaining wall, this paper establishes a numerical model of cantilevered retaining wall based on the discrete element method and on the basis of the model test in the literature. The rationality of the numerical model is verified by comparing the particle displacement field and particle rotation field of the cantilever retaining wall. The bearing capacity curves of the cantilever retaining wall and the visualization results such as particle displacement cloud and force chain distribution diagram were analyzed, and the damage modes and load transfer paths of the retaining wall were investigated. The effects of foundation soil compaction on the bearing performance and deformation characteristics of the retaining wall were studied. The results show that: the load is transferred to the horizontal base plate by the fill behind the wall, and the stress is concentrated at the toe of the wall and spreads downward; the damage modes of cantilevered retaining walls are dominated by horizontal sliding and overturning; the bearing capacity of the retaining wall is obviously improved by increasing the compaction degree of the foundation soil, but in the destructive stage, the overturning damage characteristics of the retaining wall built on the high-compaction foundation soil is rather more obvious. The visualization results can help researchers to deeply understand the bearing mechanism and deformation behavior of cantilever retaining walls.
Research on the spatial vitality of the Daobashi historical block based on multi-source data
Fang Hui;Ji Wenmei;Zhong Jie;Historical and cultural blocks serve as key carriers of a city's historical memory and cultural essence. Taking the Daopashi historical and cultural block in Anqing as a case study, multi-source data were integrated. Kernel density analysis, neighborhood analysis using ArcGIS, and spatial syntax's Axial model analysis method were utilized to quantitatively analyze the block's spatial vitality and its influencing factors, specifically to investigate the impact of traffic organization, commercial formats, and historical resources. The spatial vitality of the Daopashi block was found to be higher on weekends than on weekdays, decreasing from northwest to southeast. Correlation analysis based on SPSS indicates that the primary influencing factor for spatial vitality is land-use mix, while spatial integration and choice are secondary factors. Based on the analysis results and the block's characteristics, optimization strategies were proposed, including improving the road network, optimizing the combination of commercial formats, and revitalizing historical resources. This work aims to provide theoretical support and practical reference for enhancing the spatial vitality of similar municipal-level historical and cultural blocks.
Effect of oil shale waste residue powder on the properties of ultra-high performance concrete
Liu Danyang;Sun Yangang;Li Guanjie;Liu Hantao;Meng Fanyuan;Jin Yujie;To address the issues of high costs and shrinkage rate caused by high cement content in ultrahigh performance concrete(UHPC), this study replaced a portion of the cement with mechanically activated oil shale waste residue powder(OSRP) and investigated its influences on the workability, mechanical properties, freeze-thaw resistance, and shrinkage behavior of UHPC. The results indicate that the reactivity index of the activated OSRP increased by 66.3%. When the OSRP was incorporated at a 6% replacement rate, the flexural strength at 3 days and 28 days increased by 10.1% and 5.3%, respectively, compared to the control group, the strength loss after 300 freeze-thaw cycles decreased by 66.6%. The shrinkage rate decreased continuously with increasing OSRP content. Under standard curing conditions, at a 12% replacement rate, the 28-day shrinkage rate was 39.9% lower than that of the control group. XRD data indicate that OSRP has no significant effect on the phase composition of hydration products in UHPC, while SEM images show that it reduces the porosity of the concrete. The appropriate addition of OSRP can achieve the dual objectives of cost reduction and shrinkage mitigation in UHPC while promoting the resource utilization of oil shale waste residue, thereby providing technical support for the industrial application of green high performance concrete.
Analysis of the effects of soil parameters beneath the cap on the bearing performance of NT-CEP pile foundations
Liu Bingyi;Qian Yongmei;Li Gang;Wang Tao;Guan Ming;In the field of pile foundation engineering, conventional concrete bored piles often fail to fully utilize the bearing capacity of the soil. However, a new type concrete expanded base pile(NT-CEP) offersexcellent bearing performance, which can significantly optimize and reduce the use of concrete and steel, lowering construction costs. Due to the expanded-end structure of NT-CEP altering the stress distribution in the surrounding soil, the conventional pile cap-soil interaction theory based on uniform-diameter piles is no longer applicable. Currently, there is a lack of research on the influence of the physical parameters of soil under the pile cap on the bearing performance of NT-CEP piles. Therefore, focusing on the primary factors affecting the bearing performance of NT-CEP pile foundations beneath the cap, this paper employs the ANSYS finite element simulation method to systematically analyze the influence mechanisms of variations in dry density and moisture content of the soil beneath the cap on the compressive bearing performance and failure mode of the NT-CEP pile foundation. It is concluded that under conditions with a moisture content of 10% to 22%, the gradual increase in moisture content leads to greater vertical displacement and range, weakened lateral load transfer capacity, and reduced overall bearing capacity. Under conditions with a dry density of 1.45 to 1.72, the gradual increase in dry density enhances the soil's shear strength and compaction, strengthens lateral load transfer, reduces vertical load burden, and results in a wider lateral but shallower vertical displacement influence range. This paper provides a basis for optimized design methods, promotes the scientific application of NT-CEP piles in engineering practice, and contributes to the high-quality and sustainable development of foundational engineering.
Research on Cloud Computing Based on Virtualization Technology
LI Gang-jian(School of Computer science and Engineering Jilin Institute of Architectural and Civil Engineering,Jilin,Changchun,China 130118)In the paper,the author did research on the current trend of cloud computing technology and the cloud computing model.According to its own characteristics,a way is presented based on Hyper-v.The platform has some advantages,so that the characteristics of virtualization will come into perform well.
[Downloads: 2,341 ] [Citations: 186 ] [Reads: 205 ] HTML PDF Cite this article
The Development Status and Prospects of Diatomite
XIAO Li-guang,ZHAO Zhuang,YU Wan-zeng(School of Material Science and Engineering,Jilin Institute of Architecture and Civil Engineering,Changchun,China 130021)Diatomaceous earth as a very abundant mineral resources,as its porosity,adsorption is strong,light,high melting point,thermal insulation,sound absorption,low refractive index,chemical stability and so on,it has a widely used in many fields.This paper describes the latest research and application of diatomite in fillers,filter aid,agriculture,construction materials and other areas.
[Downloads: 2,766 ] [Citations: 160 ] [Reads: 185 ] HTML PDF Cite this article
Iron Tailings Comprehensive Utilization at Home and Abroad
XIAO Li-guang,YI Jing-hong,CUI Zheng-xu(School of Material Science and Engineering,Jilin Institute of Architecture and Civil Engineering,Changchun,China 130118)The mineral resource is one of the human survival and development important material bases,along with mineral resource's massive developments and the use,the ore is day by day deficient,the tailings recycling has a second world attention.This article describes the tailings and the comprehensive use of the status quo,the application of the building materials,and the proposal in the future development of tailings.
[Downloads: 2,050 ] [Citations: 155 ] [Reads: 205 ] HTML PDF Cite this article
Development of the Sludge Treatment Techniques
Wang Shiyuan (The Countryside Hygiene and Reform Water Office of Jilin Province)Cui Yubo, Wang Cuilan, Jian Zhiyuan (Department of Urban Construction)This paper simply introduced the sludge treatment techniques and its development, and presented the regulation of choosing and developing sludge treatment techniques.
Summary of Data Mining Methods
GUO Xiu-juan (Department of Computer Engineering,Jilin Architectural and Civil Engineering Institute,Changchun130021)The good methods and technologies of data mining may get excellent knowledge.This paper presents an overview on data mining methods.First,the concept of data mining is discussed.Then,this paper describes the theories and technologies on data mining,such as relational rules,decision tree,neural network,rough sets,clustering analysis,genetic algorithms,and statistics analysis.Finally,how to study data mining is forecasted.
Research Progress in Synthesis and Application of Quantum Dots
LI Hua-nan;FENG Wei;WANG Ting;Polyimide had many advantages,such as heat resistance,low temperature resistance,resistance to radiation,flame retardant,non-toxic characteristics,excellent mechanical properties,dimension stability,chemical stability and biocompatibility etc,had been widely used in aviation,aerospace,electrical,electronics,communications,buildings,cars,and other areas of the tip. In this paper,a review was given about the basic classification and main characteristics of polyimide as the core. It was summarized the polyimide synthesis method and modification of significance. Moreover,suggestions were expounded about the application progress of polyimide in many fields,and prospect the development trend of the future.
The Comparison of the French Versailles Palace and China Beijing Imperial Palace
YU Qi,MO Wei (School of Architecture and Planning,Jilin Institute of Architecture and Civil Engineering,Changchun,China 130118)By comparing space layout,building systems,construction materials and structural,architectural decoration and color of different points for the French Versailles palace and the Beijing national palace museum in China,from macroscopical to microcosmic comparison of the two countries palace architecture,cultural of the similarities and differences between China and France is analyzed.Trying to find out the difference between eastern and western culture as the history of eastern and western architectural palaces outstanding representative of China's Beijing palace museum and the French Versailles palace,has long been regarded as the world two great cultural windows.Different cultures on the "beauty" of the pursuit are not the same.Therefore,we compared from an aesthetic point of view these two in the history of human civilization occupy a considerable proportion of the palace construction.To arouse people on architectural aesthetics thinking and a new understanding are done.
Black Humor in George Orwell’s Animal Farm
ZHAO Yu-hong(School of Foreign Language,Jilin Institute of Architecture and Civil Engineering,Changchun,China 130021)Black humor skill is applied by George Orwell in his masterpiece Animal Farm to represent an inhumane society.The skill of irony,the implication of the characters,and fallacy will be analyzed in this article.
The Development Status and Prospects of Diatomite
XIAO Li-guang,ZHAO Zhuang,YU Wan-zeng(School of Material Science and Engineering,Jilin Institute of Architecture and Civil Engineering,Changchun,China 130021)Diatomaceous earth as a very abundant mineral resources,as its porosity,adsorption is strong,light,high melting point,thermal insulation,sound absorption,low refractive index,chemical stability and so on,it has a widely used in many fields.This paper describes the latest research and application of diatomite in fillers,filter aid,agriculture,construction materials and other areas.
[Downloads: 2,766 ] [Citations: 160 ] [Reads: 185 ] HTML PDF Cite this article
Research on intelligent lighting control system of building based on STM32 microcontroller
XU Yong;HOU Bo-feng;WEI Li-ming;An intelligent lighting control system based on STM32 was designed,which can intelligently control the different needs of lighting environment.Firstly,to use CAN bus technology and to propose the hardware communication protocol of intelligent energy-saving lighting control system,and to design and realize the hardware subsystem of intelligent energy-saving lighting control.The CAN bus module is composed of processor STM32 and corresponding number of transceivers tja1050; Secondly,basing on BP neural network algorithm for data detection,to optimize the output illumination,and to design and implement the monitoring software subsystem of the upper computer.The intelligent lighting control system proposed in this paper provides a reference for energy saving of engineering application.
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