International Journal of Concrete Structures and Materials最新文献_第3页

Structural Performance of Ferrocement Hollow Shear Walls Subjected to Lateral and Compressive Axial Loads 承受侧向和压缩轴向荷载的铁水泥空心剪力墙的结构性能

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-07-04 DOI: 10.1186/s40069-024-00686-9

Yousry B. Shaheen, Boshra A. Eltaly, Samar Khairy, Sabry Fayed

{"title":"Structural Performance of Ferrocement Hollow Shear Walls Subjected to Lateral and Compressive Axial Loads","authors":"Yousry B. Shaheen, Boshra A. Eltaly, Samar Khairy, Sabry Fayed","doi":"10.1186/s40069-024-00686-9","DOIUrl":"https://doi.org/10.1186/s40069-024-00686-9","url":null,"abstract":"In this study, ten shear walls were experimentally tested to examine behaviour of ferrocement hollow shear walls subjected to axial and lateral loads. Ferrocement mortar (FM) was used to build eight walls, while normal concrete (NC) was used to build two controls. Walls were lateral reinforced using conventional stirrups, two layers of welded wire mesh (WWM), and expanded steel mesh (ESM). Two specimens lacked lateral reinforcement except for one transverse web in the center of the inner hole. Two symmetric groups of five walls each were created by dividing the walls. While the other group was loaded laterally, one group was loaded axially. In each group, the load–displacement relationship, maximum load and associated displacement, stiffness, ductility, and failure mechanism of FM and NC walls were compared. The results showed that FM walls provided with ESM and WWM had ultimate axial loads that were, respectively, 36% and 19% higher than NC control walls. Ultimate lateral loads and related ultimate drifts of FM walls reinforced with two layers of WWM and ESM were, respectively, 68% and 39%, 96% and 43.5%, larger than control NC wall. For lateral loads greater than those applied to the NC control wall, stiffness increase ratios for FM walls ranged from 2.5% to 89.5%, and for axial loads, they ranged from 20% to 150.5%. The ductility of FM walls increased when compared to NC walls by 58.5% and 158.8% for axial and lateral loading, respectively, when two layers of WWM were utilized to lateral reinforce FM walls. When two layers of ESM were applied to laterally reinforce FM walls in comparison to an NC wall, this increased the walls' ductility under axial and lateral loads by 110.5% and 214.7%, respectively.","PeriodicalId":13832,"journal":{"name":"International Journal of Concrete Structures and Materials","volume":"107 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141547095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transport Characteristics and Corrosion Behavior of Ultra-High Performance Fiber-Reinforced Concrete with the Key Mix Parameters 关键混合参数下超高性能纤维增强混凝土的迁移特性和腐蚀行为

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-07-02 DOI: 10.1186/s40069-024-00680-1

Shamsad Ahmad, Ashraf A. Bahraq, Amin Al-Fakih, Moruf Olalekan Yusuf, Mohammed A. Al-Osta

{"title":"Transport Characteristics and Corrosion Behavior of Ultra-High Performance Fiber-Reinforced Concrete with the Key Mix Parameters","authors":"Shamsad Ahmad, Ashraf A. Bahraq, Amin Al-Fakih, Moruf Olalekan Yusuf, Mohammed A. Al-Osta","doi":"10.1186/s40069-024-00680-1","DOIUrl":"https://doi.org/10.1186/s40069-024-00680-1","url":null,"abstract":"The presence of low-quality coarse aggregates and exposure to aggressive conditions are the two major problems with the durability of concrete. Therefore, an alternative concrete with enhanced properties to prevent fluid and ionic mobility compared to conventional concrete is needed. This study investigated the effects of main mix parameters on the transport characteristics and corrosion behavior of ultra-high performance fiber-reinforced concrete (UHPFRC). A set of 27 UHPFRC mixtures with different combinations of w/b ratio, cement, and silica fume contents, based on a 33-factorial experiment design, were prepared and tested for water permeability, chloride penetrability, electrical resistivity, chloride profile, and corrosion current density. The results showed that UHPFRC mixtures exhibited excellent durability properties characterized by negligible water penetration (< 15 mm), negligible and very low chloride permeability when the w/b ratio was 0.15 (< 100 Coulombs) and up to 0.2 (< 300 Coulombs), respectively, and very low chloride concentrations at the rebar level (0.03–0.18 wt.%). All resistivity values were within the range of 26.7–78.8 kΩ cm (> 20 kΩ cm) and pH values were 12.41–13.01, indicating the implausible likelihood of corrosion in the UHPFRC mixtures. This was confirmed through the corrosion current density measurements of reinforced UHPFRC specimens after 450 days of chloride exposure, which were below the critical limit for the corrosion initiation of reinforcing steel. Finally, the experimental data were statistically analyzed and fitted for all the listed tests, and models were developed for them using the regression analysis such that regression coefficients were within 0.90–0.99.","PeriodicalId":13832,"journal":{"name":"International Journal of Concrete Structures and Materials","volume":"2016 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141507892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Data-Driven Insights into Controlling the Reactivity of Supplementary Cementitious Materials in Hydrated Cement 数据驱动的水化水泥中补充胶凝材料反应性控制见解

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-06-28 DOI: 10.1186/s40069-024-00677-w

Aron Berhanu Degefa, Geonyeol Jeon, Sooyung Choi, JinYeong Bak, Seunghee Park, Hyungchul Yoon, Solmoi Park

{"title":"Data-Driven Insights into Controlling the Reactivity of Supplementary Cementitious Materials in Hydrated Cement","authors":"Aron Berhanu Degefa, Geonyeol Jeon, Sooyung Choi, JinYeong Bak, Seunghee Park, Hyungchul Yoon, Solmoi Park","doi":"10.1186/s40069-024-00677-w","DOIUrl":"https://doi.org/10.1186/s40069-024-00677-w","url":null,"abstract":"Supplementary cementitious materials (SCMs) play an essential role in sustainable construction due to their potential to reduce carbon emissions, promote circular economy principles, and enhance the properties of concrete. However, the inherent diversity of SCMs makes it challenging to predict their degree of reaction (DOR). This study applies machine learning techniques to predict DOR while exploring key parameters affecting it. Five machine learning models are utilized: linear regression, Gaussian process regression (GPR), decision tree regression, support vector machine and extreme gradient boosting, with GPR providing the most accurate and adaptable prediction. The study delves into the impact of various parameters on DOR, revealing their significance. Silica content emerges as the most critical, followed by particle size distribution, specific gravity, and water-to-cement (W/C) ratio. Optimizing DOR requires extending curing time, reducing particle size distribution, and considering optimal silica content and W/C ratio. This research emphasizes the importance of understanding the relationships between parameters and the DOR of SCMs, providing insights to enhance the efficiency of SCMs in cementitious systems through machine learning and data-driven analysis.","PeriodicalId":13832,"journal":{"name":"International Journal of Concrete Structures and Materials","volume":"39 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141507893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydration Characteristics of Slag-Ca(OH)2-Al2O3 Binder in a 60 °C Curing Environment with Brine as Mixing Water 以盐水为混合水的矿渣-Ca(OH)2-Al2O3 粘合剂在 60 °C 固化环境中的水化特性

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-06-24 DOI: 10.1186/s40069-024-00675-y

Choonghyun Kang, Taewan Kim, Yong-Myung Park, Ki-Young Seo

{"title":"Hydration Characteristics of Slag-Ca(OH)2-Al2O3 Binder in a 60 °C Curing Environment with Brine as Mixing Water","authors":"Choonghyun Kang, Taewan Kim, Yong-Myung Park, Ki-Young Seo","doi":"10.1186/s40069-024-00675-y","DOIUrl":"https://doi.org/10.1186/s40069-024-00675-y","url":null,"abstract":"Recently, research results on PC-based or alkali-activated slag cement (AASC) using seawater as mixing water have been reported. Unlike seawater, reverse osmosis brine (brine) is waste discharged into the ocean from seawater desalination plants. There is a need to develop new and effective methods of disposing or utilizing brine to reduce marine pollution, protect marine ecosystems, and increase marine plant construction. However, research on cement or concrete using brine as a mixing water is very limited. Brine has almost the same composition as seawater, and the ion concentration is 2–4 times higher. Therefore, it is believed that new methods of using brine can be investigated and developed based on existing research and experimental results on seawater. The effects of brine and aluminum oxide (AO) on activated slag with calcium hydroxide (CH) were investigated for hydration and mechanical properties. 5% and 10% of CH were used, and samples using fresh water (FC) were prepared at the same time for comparison with brine. The slag sample without CH has a low initial (1 and 3d) strength of about 10 MPa for both FC and brine, but increases rapidly from 7d. Incorporation of CH was effective in improving the mechanical performance of FC and brine samples. In addition, the brine sample exhibited higher strength than the FC sample because it formed fewer C3AH6 phases that cause volume instability than the FC sample and affected the hydration promotion of slag particles. And more calcite phases were observed in the brine samples than in the FC samples. Through this study, the possibility of using brine as a building material was confirmed. In addition, the effect of chloride ion adsorption of slag mixed with AO and CH on the physical properties and mechanical performance of the hydration reaction was confirmed.","PeriodicalId":13832,"journal":{"name":"International Journal of Concrete Structures and Materials","volume":"25 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141507894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bond Properties of CFRP Externally Bonded Reinforcement on Groove in Concrete CFRP 外粘结钢筋在混凝土凹槽上的粘结性能

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-06-03 DOI: 10.1186/s40069-024-00678-9

Zehong Han, Jing Gao, Huaihui Song, Gongyi Xu

{"title":"Bond Properties of CFRP Externally Bonded Reinforcement on Groove in Concrete","authors":"Zehong Han, Jing Gao, Huaihui Song, Gongyi Xu","doi":"10.1186/s40069-024-00678-9","DOIUrl":"https://doi.org/10.1186/s40069-024-00678-9","url":null,"abstract":"Externally bonded reinforcement on groove (EBROG) is a significant reinforcement technology proposed by researchers to enhance the bond properties of reinforced concrete structural members. To understand the influence of groove size on concrete specimens of different strength, a total of 60 concrete specimens with 4 different strengths were cast with the single shear test in this paper, among which 48 EBROG specimens and 12 specimens with externally bonded reinforcement method (EBR) were used as the control group. The failure modes and failure mechanisms of specimens with various sizes and reinforcement methods were analyzed. Additionally, the test results of ultimate load, load–displacement curves, and bond-slip curves for specimens with different groove sizes were compared. The effectiveness of EBROG method in enhancing the ultimate load capacity at the bond interface of the specimens is proved. Furthermore, in situations where the volume of the groove was kept constant, the specimens with lower concrete strength and deeper groove exhibited superior bond properties. Also, the influence of groove width on bond properties was better than that of groove depth. Finally, the test results in this paper were compared with the prediction of the existing EBR and EBROG models to evaluate the performance of different models, and based on the original model, a prediction model for EBROG method in the groove region with higher accuracy was proposed.","PeriodicalId":13832,"journal":{"name":"International Journal of Concrete Structures and Materials","volume":"66 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Analysis of Blast Behavior for Non-ideal Explosive ANFO in Shock-Tube Test 非理想爆炸物 ANFO 在冲击管试验中的爆炸行为数值分析

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-05-28 DOI: 10.1186/s40069-024-00673-0

Hyun-Seop Shin, Sung-Wook Kim, Jae-Heum Moon, Gang-Kyu Park

{"title":"Numerical Analysis of Blast Behavior for Non-ideal Explosive ANFO in Shock-Tube Test","authors":"Hyun-Seop Shin, Sung-Wook Kim, Jae-Heum Moon, Gang-Kyu Park","doi":"10.1186/s40069-024-00673-0","DOIUrl":"https://doi.org/10.1186/s40069-024-00673-0","url":null,"abstract":"In an explosion test using a shock tube, the behavior of pressure waves can be reproduced with high reliability. However, the explosion in a shock tube occurs in a confined space. It is difficult to predict the behavior of pressure waves and its effect on various concrete specimens by using the research findings related to free-field explosions. Moreover, few studies have focused on explosive-driven shock tubes. In this study, the behavior of pressure waves in a shock tube was numerically analyzed using a finite-element analysis program. The explosive used to generate the pressure waves was an ammonium nitrate fuel oil (ANFO), which exhibits non-ideal explosion characteristics. The Jones–Wilkins–Lee (JWL) and ignition-and-growth (I&G) equations of state were used for blast-pressure calculation. The analysis results were affected by factors such as the release rate of explosive energy and the development of the pressure waves in the confined explosion. The blast behaviors, such as the low release rate of explosive energy and the resulting increase in the impulse, were analyzed using the ignition-and-growth equation. The impulse produced during the development of waves reflected by the block installed at the tube inlet exceeded that produced by the tube wall. Such behaviors that occurred at the beginning of a blast affected the process of wave propagation along the shock tube and the wave reflection due to the test specimen at the outlet of the shock tube. In this study, the blast behavior in the shock tube, which could be referenced for the analysis of blast overpressure and its effect on concrete specimens, was numerically analyzed. Further research on the structural behaviors of concrete specimens due to blast overpressure is needed.","PeriodicalId":13832,"journal":{"name":"International Journal of Concrete Structures and Materials","volume":"23 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141171520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid Environmentally Friendly Method for RCA Concrete Quality Improvement 改善 RCA 混凝土质量的混合环保型方法

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-05-17 DOI: 10.1186/s40069-024-00664-1

Alieh Mardani, Ngoc Kien Bui, Takafumi Noguchi

引用次数: 0

Effect of Nano-TiO2 and Polypropylene Fiber on Mechanical Properties and Durability of Recycled Aggregate Concrete 纳米二氧化钛和聚丙烯纤维对再生骨料混凝土力学性能和耐久性的影响

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-05-14 DOI: 10.1186/s40069-023-00656-7

Xiong Wei, Wang Xiaoqing, Li Chunmei

{"title":"Effect of Nano-TiO2 and Polypropylene Fiber on Mechanical Properties and Durability of Recycled Aggregate Concrete","authors":"Xiong Wei, Wang Xiaoqing, Li Chunmei","doi":"10.1186/s40069-023-00656-7","DOIUrl":"https://doi.org/10.1186/s40069-023-00656-7","url":null,"abstract":"In order to promote the engineering application of recycled concrete, the effects of PPF and nano-TiO2 dioxide on the mechanical properties and durability of recycled concrete were studied.Polypropylene fiber recycled concrete(PRAC) and nano-TiO2 recycled concrete(TRAC) were prepared by adding different volume contents of PPF and nano-TiO2. The experimental findings demonstrated that the PPF and nano-TiO2 improved the splitting tensile strength of RAC better than the compressive strength. When the volume content of nano-TiO2. and PPF is 0.8% and 1.0%, respectively, the corresponding splitting tensile strength of concrete reaches the maximum value(3.4 and 3.7 MPa). The contribution rates of nano-TiO2 and PPF with different volume contents to the mechanical properties of RAC have optimal values, which are 0.4 and 1.0%, respectively. The incorporation of nano-TiO2 and PPF can effectively inhibit the loss of RAC mass and the generation of pores under freeze–thaw conditions, and slow down the decrease of dynamic elastic modulus. When the volume content of PPF is 1.0% and the volume content of nano-TiO2 is 0.4%, the protection effect on the internal structure of RAC is better, and its carbon resistance is better. The results of RSM model analysis and prediction show that both PPF and nano-TiO2 can be used as admixture materials to improve the mechanical properties and durability of RAC, and the comprehensive improvement effect of PPF on RAC performance is better than that of nano-TiO2.","PeriodicalId":13832,"journal":{"name":"International Journal of Concrete Structures and Materials","volume":"254 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140934274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of Sustainable Slag-based Geopolymer Concrete Using Different Types of Chemical Admixtures 使用不同类型的化学外加剂开发可持续的矿渣基土工聚合物混凝土

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-05-09 DOI: 10.1186/s40069-024-00672-1

Ismail Amer, Amr Abdelkhalik, Ola A. Mayhoub, Mohamed Kohail

{"title":"Development of Sustainable Slag-based Geopolymer Concrete Using Different Types of Chemical Admixtures","authors":"Ismail Amer, Amr Abdelkhalik, Ola A. Mayhoub, Mohamed Kohail","doi":"10.1186/s40069-024-00672-1","DOIUrl":"https://doi.org/10.1186/s40069-024-00672-1","url":null,"abstract":"Geopolymer concrete (GPC) has achieved a wide popularity since innovating it as an alternative to conventional concrete because of its superior mechanical characteristics and durability, in addition to being a green concrete due to its low negative impact on the environment. However, GPC still suffers from the problem of its poor workability which suppresses its spread in construction applications. This study investigated the most effective parameters on the workability of GPC including GGBFS content, water to binder ratio, and dosage of different types of chemical admixtures, Naphthalene-Based Admixture (NPA) and Polycarboxylate-Based Admixture (PCA), using Taguchi approach and Analysis of Variance (ANOVA) analysis considering the compressive strength at the different concrete ages. It was observed that NPA, in the geopolymer concrete, improved the compressive strength compared to PCA. The NPA-based mixes achieved the highest 28-day compressive strength, 69 MPa, with about 27.8% more than the highest 28-day compressive strength achieved by the PCA-based mixes, 54 MPa. The obtained results revealed that the NPA has achieved the best improvement for both the workability, in terms of initial slump value and slump loss rate, and the compressive strength of GPC mixes compared to PCA.","PeriodicalId":13832,"journal":{"name":"International Journal of Concrete Structures and Materials","volume":"23 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140934352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Simulation Study on the Seismic Performance of Prefabricated Fiber-Reinforced Concrete Beam–Column Joints With Grouted Sleeve Connections 带灌浆套筒连接的预制纤维加固混凝土梁柱连接的抗震性能数值模拟研究

IF 3.4 3区工程技术

International Journal of Concrete Structures and Materials Pub Date : 2024-05-06 DOI: 10.1186/s40069-024-00671-2

Mei-Ling Zhuang, Jinsheng Cheng, Dongsong Fei, Chuanzhi Sun, Zhenbo Wang, Baodong Chen, Yan Qiao

{"title":"Numerical Simulation Study on the Seismic Performance of Prefabricated Fiber-Reinforced Concrete Beam–Column Joints With Grouted Sleeve Connections","authors":"Mei-Ling Zhuang, Jinsheng Cheng, Dongsong Fei, Chuanzhi Sun, Zhenbo Wang, Baodong Chen, Yan Qiao","doi":"10.1186/s40069-024-00671-2","DOIUrl":"https://doi.org/10.1186/s40069-024-00671-2","url":null,"abstract":"Based on the available experimental data, fiber models for four prefabricated fiber-reinforced concrete beam–column joint specimens with grouted sleeve connections are first developed in OpenSees software. Then, the simulated seismic performance of the specimens is compared with the experimental results. Finally, the effects of axial load ratio and shear-to-span ratio on the seismic performance of the specimens are further investigated numerically. The results indicate that Concrete02 material model and Reinforcing Steel material model can accurately simulate the constitutive relationship of concrete and reinforcing steel, respectively; the beam–column joint elements can accurately simulate different damage behaviors of the joint zone. Fiber-reinforced concrete can significantly improve the seismic performance of the specimens. The relative errors of the simulated seismic performance indexes are about 15%. It is recommended that the optimum value of shear-to-span ratio for prefabricated FRC BCJs is 2.0–2.5. The effect of axial load ratio on the seismic behavior of PBCJs-CM is very small, and can be negligible in the case that the prefabricated FRC BCJs has a moderate value of shear-to-span ratio. The fiber model developed in this article can provide a numerical simulation basis for subsequent studies of prefabricated fiber-reinforced concrete beam–column joint specimens with grouted sleeve connections.","PeriodicalId":13832,"journal":{"name":"International Journal of Concrete Structures and Materials","volume":"152 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140889082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0