Journal of Traffic and Transportation Engineering-English Edition最新文献

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Study of interfacial transition zones between magnesium phosphate cement and Portland cement concrete pavement 磷酸镁水泥与硅酸盐水泥混凝土路面界面过渡带研究
IF 7.4 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-06-01 DOI: 10.1016/j.jtte.2022.06.009
Fei Liu , Baofeng Pan , Changjun Zhou , Ge Li , Xiaocun Wang , Jiaquan Li
{"title":"Study of interfacial transition zones between magnesium phosphate cement and Portland cement concrete pavement","authors":"Fei Liu ,&nbsp;Baofeng Pan ,&nbsp;Changjun Zhou ,&nbsp;Ge Li ,&nbsp;Xiaocun Wang ,&nbsp;Jiaquan Li","doi":"10.1016/j.jtte.2022.06.009","DOIUrl":"10.1016/j.jtte.2022.06.009","url":null,"abstract":"<div><p>The Portland cement concrete pavement (PCCP) often suffers from different environmental distresses and vehicle load failure, resulting in slab corner fractures, potholes, and other diseases. Rapid repair has become one of the effective ways to open traffic rapidly. In this study, a novel type of rapid repair material, basalt fiber reinforced polymer modified magnesium phosphate cement (BFPMPC), is used to rapidly repair PCCP. Notably, the mechanical properties and characteristics of the repair interfaces which are named interfacial transition zones (ITZs) formed by BFPMPC and cement concrete are focused on as a decisive factor for the performance of the rapid repair. The changing trend of the elastic moduli was studied by nanoindentation experiments in the ITZs with the deconvolution analysis that the elastic moduli of certain kinds of substances can be determined. The experimental results show that the elastic modulus of ITZ-1 with a width of about 20 μm can be regarded as 0.098 times of the aggregate, and 0.51 times of the ordinary Portland cement (OPC) mortar. The BFPMPC-OPC mortar ITZ has roughly the same mechanical properties as the ITZ between aggregate and BFPMPC. A multi-scale representative two-dimensional model was established by random aggregate and a two-dimensional extended finite element method (XFEM) to study the mechanical properties of the repair interface. The simulation results show that the ITZ formed by the interface of BFPMPC and OPC mortar and basalt aggregate is the most vulnerable to failure, which is consistent with the nano-indentation experimental results.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 3","pages":"Pages 523-537"},"PeriodicalIF":7.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000503/pdfft?md5=949edb0d1e5ec9a15e42b9dac79281a5&pid=1-s2.0-S2095756424000503-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141411269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stripping of aggregate from mortar in waste concrete heated by microwave: Mechanisms of differential-temperature stress and vapor expansion pressure 微波加热废混凝土中砂浆骨料的剥离:温差应力和蒸汽膨胀压力的机理
IF 7.4 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-06-01 DOI: 10.1016/j.jtte.2022.06.008
Yanping Sheng , Xiao Huan , Peizhen Hu , Liangliang Li , Ahmed Abdulakeem , Zhoujing Ye , Linbing Wang , Yanping Yin
{"title":"Stripping of aggregate from mortar in waste concrete heated by microwave: Mechanisms of differential-temperature stress and vapor expansion pressure","authors":"Yanping Sheng ,&nbsp;Xiao Huan ,&nbsp;Peizhen Hu ,&nbsp;Liangliang Li ,&nbsp;Ahmed Abdulakeem ,&nbsp;Zhoujing Ye ,&nbsp;Linbing Wang ,&nbsp;Yanping Yin","doi":"10.1016/j.jtte.2022.06.008","DOIUrl":"10.1016/j.jtte.2022.06.008","url":null,"abstract":"<div><p>Microwave heating, which is used for pre-treatment of concrete before it is comminuted, stands as a strong candidate for selective liberation of multiphase materials like concrete. This paper is concerned with the selective liberation of concrete's raw constituents (particularly aggregate) for recycling by considering the water content of concrete as a parameter of microwave heating for the first time. The deterioration law of the concrete's performance was characterized by the variation in the splitting tensile strength and relative dynamic modulus after heating by microwave at different water contents. Besides, tests were conducted to evaluate the performance of the interface transition zone (ITZ) between aggregate and mortar as well as to investigate the reasons for the stripping behavior of aggregate-mortar, which included the interface tensile strength test, temperature measurement, and porosity test. The deterioration law of splitting tensile strength and relative dynamic modulus revealed that the performance of concrete was subject to different degrees of damage depending on the water content. Furthermore, experimental results showed that interface bonding strength between aggregate and mortar was dramatically impaired, and a large temperature difference was generated between the aggregate and mortar during microwave heating. Meanwhile, the permeable pores increased considerably even when the specimens were dried. In the presence of water, the intactness of ITZ between aggregate and mortar was destroyed by microwave heating, and its performance was significantly lowered, which led to the occurrence of stripping behavior between aggregate and mortar. This was reaffirmed by the microstructure presented by scanning electron microscopy. Thus, the newly developed microwave pre-treatment improved by providing appropriate water contents for concrete corresponding to different strength grades is a promising method for recycling aggregate from waste concrete.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 3","pages":"Pages 538-558"},"PeriodicalIF":7.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000497/pdfft?md5=40d54b31996c35ec7406dbd623481e26&pid=1-s2.0-S2095756424000497-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141412056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Creep damage evolution process of asphalt binder based on viscoelastic characteristics 基于粘弹特性的沥青胶结料蠕变损伤演变过程
IF 7.4 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-06-01 DOI: 10.1016/j.jtte.2022.07.006
Xiaofei Qi , Shuang Tian , Liyan Shan , Shuang Liu , Yajie Wang
{"title":"Creep damage evolution process of asphalt binder based on viscoelastic characteristics","authors":"Xiaofei Qi ,&nbsp;Shuang Tian ,&nbsp;Liyan Shan ,&nbsp;Shuang Liu ,&nbsp;Yajie Wang","doi":"10.1016/j.jtte.2022.07.006","DOIUrl":"https://doi.org/10.1016/j.jtte.2022.07.006","url":null,"abstract":"<div><p>The creep damage evolution of asphalt binder plays a significant role in investigating the formation mechanism of rutting. The rutting is the common distress at high temperatures for asphalt pavements. However, the reliability of existing creep damage parameters is under questioned, and these parameters cannot accurately illustrate the change of intrinsic microstructure for asphalt binder. In this paper, a new test protocol was given access to study the evolution of viscoelastic parameters during creep damage. It was completed by inserting the frequency sweep during creep test. The frequency sweep curve clusters were fitted by the generalized Kelvin-Voigt model for obtaining the change law of model parameters. Based on the change law and sensitivity analysis of model parameters, (<em>E</em><sub>2</sub> + <em>E</em><sub>3</sub>)/2 was proposed as the creep damage variable. According to the curve of (<em>E</em><sub>2</sub> + <em>E</em><sub>3</sub>)/2 versus loading time, two stages during the creep test could be identified: an approximate constant value in phase Ⅰ and a linear decrease in phase Ⅱ. Intrinsic differences about creep property of binders could be determined by this new proposed parameter. Above results not only ensure better understanding of the creep damage mechanism of binders, but also lay the theoretical foundation on predicting the anti-rutting performance of binders.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 3","pages":"Pages 497-506"},"PeriodicalIF":7.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000527/pdfft?md5=d5ef2bc52448a694d1722a3add89f392&pid=1-s2.0-S2095756424000527-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141487296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanical performance of cold mix asphalt containing cup lump rubber as a sustainable bio-modifier 含有杯状块状橡胶作为可持续生物改性剂的冷拌沥青的机械性能
IF 7.4 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-06-01 DOI: 10.1016/j.jtte.2023.08.001
Syed Abdul Ghafar , Muhammad Naqiuddin Mohd Warid , Norhidayah Abdul Hassan , Zulfiqar Ali Jattak , Ashraf Abdalla Mohammed Radwan
{"title":"Mechanical performance of cold mix asphalt containing cup lump rubber as a sustainable bio-modifier","authors":"Syed Abdul Ghafar ,&nbsp;Muhammad Naqiuddin Mohd Warid ,&nbsp;Norhidayah Abdul Hassan ,&nbsp;Zulfiqar Ali Jattak ,&nbsp;Ashraf Abdalla Mohammed Radwan","doi":"10.1016/j.jtte.2023.08.001","DOIUrl":"10.1016/j.jtte.2023.08.001","url":null,"abstract":"<div><p>The road construction industry aims to contribute to the protection of already compromised environment. Cold mix asphalt (CMA) is a measure initiated by the road industry to protect the environment and preserve energy. Despite having additional benefits, CMA has attracted little attention due to its inferior performance. CMA's performance is enhanced using a sustainable binder bio-modifier, natural cup lump rubber (CLR) is one of them. This study evaluated the tensile properties, rutting, moisture susceptibility, and adhesion properties of CLR-modified CMA (CMA-CR). The tensile property was enhanced by 26% due to CLR modification. CMA-CR had excellent rutting resistance of less than 2 mm rut depth at 10,000 load cycles, showing 70% improvement compared with conventional CMA. Moisture susceptibility evaluation indicated that CMA-CR had tensile strength ratio (TSR) value of 104%, satisfying the minimum 80% requirement of AASHTO T283. It also retained more than 96% bitumen coating. The moisture damage resistance was improved by 12% and 10% in terms of TSR and stripping, respectively. The durability results revealed that the CMA-CR mixture prevented higher mass loss, representing 14% improvement compared with conventional CMA.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 3","pages":"Pages 424-440"},"PeriodicalIF":7.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000552/pdfft?md5=b94fa2a845d96981a2881275ff8f235d&pid=1-s2.0-S2095756424000552-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141415498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Polyvinyl alcohol fiber cement-stabilized macadam: A review and performance evaluation 聚乙烯醇纤维水泥稳定碎石路面:回顾与性能评估
IF 7.4 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-06-01 DOI: 10.1016/j.jtte.2024.01.001
Chaohui Wang , Jikang Liu , Shaochang Chen , Feng Chen , Zhiwei Gao
{"title":"Polyvinyl alcohol fiber cement-stabilized macadam: A review and performance evaluation","authors":"Chaohui Wang ,&nbsp;Jikang Liu ,&nbsp;Shaochang Chen ,&nbsp;Feng Chen ,&nbsp;Zhiwei Gao","doi":"10.1016/j.jtte.2024.01.001","DOIUrl":"10.1016/j.jtte.2024.01.001","url":null,"abstract":"<div><p>This review evaluated research results on polyvinyl alcohol fiber cement-stabilized macadam (PVA-FCSM) to further improve the long-term durability of road structures and promote its in-depth study and high-quality application. The suitable PVA fiber technical indexes for ordinary cement-stabilized macadam (CSM) were recommended. The difference in the mechanical properties between CSM and PVA-FCSM was described. The extent to which PVA fibers enhance the durability of CSM were clarified. Additionally, the mechanism of enhancement of CSM by PVA fibers was revealed. Finally, the performance of each type of fiber cement-stabilized macadam (FCSM) was compared and evaluated. The results indicated that the suggested PVA fiber length and content for CSM were 12–30 mm and 0.6–1.2 kg/m<sup>3</sup>, respectively. At different ages, the mean degree of improvement in the unconfined compressive strength was 14%, 20%, and 14%, that in the compressive resilience modulus was 8%, 11%, and 6%, and that in the splitting strength was 29%, 15%, and 22%, respectively. At different ages, the mean degree of decreased in the dry shrinkage coefficient was 21%, 16%, and 15% and that in the temperature shrinkage coefficient (20 °C–30 °C) was 23%, 23%, and 18%, respectively. The coefficients increased with extended curing age. Moreover, at the same stress level, PVA-FCSM has a higher fatigue life compared to CSM. The bridging effect, high strength, and high modulus of PVA fiber enhance the strength and anti-cracking of CSM. The recommended fiber type for CSM is PVA fiber.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 3","pages":"Pages 406-423"},"PeriodicalIF":7.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000539/pdfft?md5=80bbd59e5d4c862d15cd4835ffdb0008&pid=1-s2.0-S2095756424000539-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141399256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantitative characterization of fusion state of virgin and aged asphalt using nano-ferrous ferric oxide tracer 利用纳米氧化铁示踪剂定量表征原生沥青和老化沥青的熔融状态
IF 7.4 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-06-01 DOI: 10.1016/j.jtte.2023.02.006
Qiang Li , Song Liu , Huameng Wen , Zhou Zhou
{"title":"Quantitative characterization of fusion state of virgin and aged asphalt using nano-ferrous ferric oxide tracer","authors":"Qiang Li ,&nbsp;Song Liu ,&nbsp;Huameng Wen ,&nbsp;Zhou Zhou","doi":"10.1016/j.jtte.2023.02.006","DOIUrl":"10.1016/j.jtte.2023.02.006","url":null,"abstract":"<div><p>The exact evaluation of the fusion rate of virgin and aged asphalt is essential to optimize the performance of the recycled asphalt mixture. The fusion rate index was developed by tracing the distribution of tracer asphalt, which contains nano-ferrous ferric oxide (nano-Fe<sub>3</sub>O<sub>4</sub>) tracer. Laboratory fusion simulation tests were performed on three types of asphalt to obtain different fusion states, and fatigue tests were performed to evaluate the influence of the fusion rate on the fatigue life of the recycled asphalt. It was found that the tracer asphalt containing 4% nano-Fe<sub>3</sub>O<sub>4</sub> shows the optimal trace effect, and the developed fusion rate index can quantitatively characterize the influence of different factors on the fusion state of the recycled asphalt. The fusion state is closely related to the fatigue performance of recycled asphalt, and the fusion rate index can fairly evaluate its fatigue performance. The relationship between the fusion rate and the fatigue life of recycled asphalt depends on the factors that cause the fusion rate variation. Under the influence of the amount of rejuvenator, the fatigue life of recycled asphalt grows exponentially with increasing fusion rate due to enhancement of molecular motion as well as a supplement of lightweight components. Under the influence of heat preservation treatment, fatigue life increases linearly with increasing fusion rate. The proposed fusion rate index can be utilized to quantitatively characterize the fusion state of virgin and aged asphalt, thus providing a simple way to guide the practical application of recycled asphalt.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 3","pages":"Pages 467-480"},"PeriodicalIF":7.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000461/pdfft?md5=145aff7476df684b990109c0badd5bbb&pid=1-s2.0-S2095756424000461-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141397290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Review on frost resistance and anti-clogging of pervious concrete 透水混凝土的抗冻性和防堵性综述
IF 7.4 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-06-01 DOI: 10.1016/j.jtte.2023.05.008
Zhuo Wang , Zhichen Liu , Feng Zeng , Kun He , Shuaicheng Guo
{"title":"Review on frost resistance and anti-clogging of pervious concrete","authors":"Zhuo Wang ,&nbsp;Zhichen Liu ,&nbsp;Feng Zeng ,&nbsp;Kun He ,&nbsp;Shuaicheng Guo","doi":"10.1016/j.jtte.2023.05.008","DOIUrl":"10.1016/j.jtte.2023.05.008","url":null,"abstract":"<div><p>Pervious concrete is a special type of concrete that is of high porosity and contains no or a small amount of fine aggregate, and it is an important basic material for sponge city construction. The presence of a large number of connected pores inside pervious concrete leads to a marked difference in durability failure mechanism compared with that of ordinary concrete.</p><p>In this study, the frost resistance and anti-clogging of pervious concrete were introduced in detail, and the methods to improve their performance were summarized systematically. The cracking pattern of pervious concrete is influenced by geometric characteristics and three-dimensional morphological features of pores, resulting in its crack generation, development, and geometry being significantly different from those of ordinary concrete, thus leading to different freeze-thaw cycle mechanisms. In addition, due to its different pore structure compared to ordinary concrete, three types of clogging mechanisms, affecting the long-term permeability of pervious concrete were elaborated systematically (i.e., physical clogging, biological clogging, and chemical clogging). And the ways to improve the anti-clogging of pervious concrete are systematically presented from multiple perspectives. Finally, in order to broaden the engineering applications of pervious concrete, some research proposals are presented in this study.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 3","pages":"Pages 481-496"},"PeriodicalIF":7.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000515/pdfft?md5=4fd7d910424b9fa2b91476470da1bfe4&pid=1-s2.0-S2095756424000515-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141403850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Small-scale self-driving cars: A systematic literature review 小型自动驾驶汽车:系统文献综述
IF 7.9 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-04-01 DOI: 10.1016/j.jtte.2023.09.005
Felipe Caleffi , Lauren da Silva Rodrigues , Joice da Silva Stamboroski , Brenda Medeiros Pereira
{"title":"Small-scale self-driving cars: A systematic literature review","authors":"Felipe Caleffi ,&nbsp;Lauren da Silva Rodrigues ,&nbsp;Joice da Silva Stamboroski ,&nbsp;Brenda Medeiros Pereira","doi":"10.1016/j.jtte.2023.09.005","DOIUrl":"10.1016/j.jtte.2023.09.005","url":null,"abstract":"<div><p>The autonomous vehicle (AV) technology has the potential to significantly improve safety and efficiency of the transportation and logistics industry. Full-scale AV testing is limited by time, space, and cost, while simulation-based testing often lacks the necessary accuracy of AV and environmental modeling. In recent years, several initiatives have emerged to test autonomous software and hardware on scaled vehicles. This systematic literature review provides an overview of the literature surrounding small-scale self-driving cars, summarizing the current autonomous platforms deployed and focusing on the software and hardware developments in this field. The studies published in English-language journals or conference papers that present small-scale testing of self-driving cars were included. Web of Science, Scopus, Springer Link, Wiley, ACM Digital Library, and TRID databases were used for the literature search. The systematic literature search found 38 eligible studies. Research gaps in the reviewed papers were identified to provide guidance for future research. Some key takeaway emerging from this manuscript are: (i) there is a need to improve the models and neural network architectures used in autonomous driving systems, as most papers present only preliminary results; (ii) increasing datasets and sharing databases can help in developing more reliable control policies and reducing bias and variance in the training process; (iii) small-scaled vehicles to ensure safety is a major benefit, and incorporating data about unsafe driving behaviors and infrastructure problems can improve the accuracy of predictive models.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 2","pages":"Pages 271-292"},"PeriodicalIF":7.9,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000254/pdfft?md5=0e3474bd7fa574434383d9dac2b65bc6&pid=1-s2.0-S2095756424000254-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140761819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research progress on short-term mechanical properties of FRP bars and FRP-reinforced concrete beams 玻璃钢条和玻璃钢加固混凝土梁的短期力学性能研究进展
IF 7.9 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-04-01 DOI: 10.1016/j.jtte.2023.06.005
Lili Xing, Shengjiang Sun, Kuihua Mei, Yiping Guo, Zhenhong Yang
{"title":"Research progress on short-term mechanical properties of FRP bars and FRP-reinforced concrete beams","authors":"Lili Xing,&nbsp;Shengjiang Sun,&nbsp;Kuihua Mei,&nbsp;Yiping Guo,&nbsp;Zhenhong Yang","doi":"10.1016/j.jtte.2023.06.005","DOIUrl":"https://doi.org/10.1016/j.jtte.2023.06.005","url":null,"abstract":"<div><p>Fiber-reinforced polymer (FRP) bars have been increasingly recognized in the field of civil engineering due to their advantages of light weight, high strength and excellent durability. FRP bars can replace steel bars in concrete beams and effectively improve the durability of beams. In this paper, the literature relevant to the short-term mechanical properties of FRP bars and FRP-reinforced concrete beams was reviewed based on previous studies and practical engineering application. Firstly, the mechanical properties of FRP bars were reviewed. Different types of fibers or steel and fibers can be combined to obtain hybrid fiber-reinforced polymer (HFRP) or steel-fiber composite bars (SFCB) with excellent mechanical performance, respectively. The bond performance and bond-slip model between FRP bars and concrete were discussed. Several common bond-slip models were usually used to study the bond performance between carbon fiber-reinforced polymer (CFRP) bars or glass fiber-reinforced polymer (GFRP) bars and concrete, but changing the type of FRP bars will lead to larger dispersion. Then, the experimental studies, theoretical calculation methods and finite element simulation methods of flexural/shear behavior of FRP-reinforced concrete beams were presented. Finally, their applications in practical engineering were discussed and the prospects of further research were proposed. It is pointed out that FRP-reinforced ultra-high performance concrete (UHPC) beams, FRP-reinforced geopolymer concrete (GPC) beams, engineered cementitious composites (ECC)-FRP-reinforced concrete beams, prestressed FRP-reinforced concrete beams and steel/FRP hybrid-reinforced concrete beams can effectively improve the deformation resistance and poor ductility of pure FRP-reinforced concrete beams.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 2","pages":"Pages 245-270"},"PeriodicalIF":7.9,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000278/pdfft?md5=fbb7d1f68b5d0f15b446ef3d8beabc47&pid=1-s2.0-S2095756424000278-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140813554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research progress on intelligent operation and maintenance of bridges 桥梁智能化运营和维护的研究进展
IF 7.9 2区 工程技术
Journal of Traffic and Transportation Engineering-English Edition Pub Date : 2024-04-01 DOI: 10.1016/j.jtte.2023.07.010
Wanshui Han, Gan Yang, Shizhi Chen, Kai Zhou, Xin Xu
{"title":"Research progress on intelligent operation and maintenance of bridges","authors":"Wanshui Han,&nbsp;Gan Yang,&nbsp;Shizhi Chen,&nbsp;Kai Zhou,&nbsp;Xin Xu","doi":"10.1016/j.jtte.2023.07.010","DOIUrl":"10.1016/j.jtte.2023.07.010","url":null,"abstract":"<div><p>In the context of the increasing scale of bridges and the increasing service life of bridges, it is very important to carry out efficient, accurate and intelligent bridge operation and maintenance. In recent years, advanced equipment, technology and intelligent algorithms have developed rapidly. It is necessary to apply advanced equipment and algorithms to bridge operation and maintenance business to facilitate the digitalization and intelligence of bridge operation and maintenance. To grasp the research progress on the bridge intelligent operation and maintenance, this paper summarizes the research progress in recent years from the aspects of intelligent detection equipment and technology, intelligent monitoring equipment and technology, intelligent data analysis, intelligent evaluation and early warning, and intelligent repair and maintenance. According to the review, more and more smart devices have been used to replace human beings to detect dangerous and hidden bridge components. At the same time, image processing, radar and other technologies have been used to analyze component damage more objectively and quantitatively. To solve the shortcomings of traditional sensors such as short life and low robustness, more non-contact measurement methods have been proposed. Scholars have proposed various intelligent algorithms to process the massive amount of bridge health monitoring data to improve the quality of the data. To achieve the rapid perception of bridge status and timely early warning of structural abnormalities, different from traditional theoretical calculations, scholars have tried to use data-driven methods to intelligently evaluate and early warning of bridge structural status. In terms of intelligent repair and maintenance, more intelligent algorithms have been used to optimize structural maintenance strategies and determine the best maintenance time by integrating multi-source heterogeneous data. All these provide strong support for the automation, digitization and intelligence of bridge operation and maintenance.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"11 2","pages":"Pages 173-187"},"PeriodicalIF":7.9,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2095756424000229/pdfft?md5=fe5d59bc3b40f1aea8a380afe0ddaf09&pid=1-s2.0-S2095756424000229-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140407361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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