Advances in Structural Engineering最新文献_第2页

Uncertain seismic response and robustness analysis of isolated continuous girder bridges 孤立连续梁桥的不确定地震响应和稳健性分析

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-09-07 DOI: 10.1177/13694332241281533

Xiaohong Long, Zonglin Li, Xiaopeng Gu, Xingwang Chen, Yongtao Ma

{"title":"Uncertain seismic response and robustness analysis of isolated continuous girder bridges","authors":"Xiaohong Long, Zonglin Li, Xiaopeng Gu, Xingwang Chen, Yongtao Ma","doi":"10.1177/13694332241281533","DOIUrl":"https://doi.org/10.1177/13694332241281533","url":null,"abstract":"When calculating the seismic response of structures, conventional methods often neglect uncertainty and suffer from excessive computation. Although robustness metrics have been effective in evaluating structural safety, they are not suitable for isolated continuous girder bridges (ICGB). To address this issue, this paper introduces an uncertain seismic response and robustness assessment method tailored to ICGB: Firstly, the method considers uncertainty in material parameters and ground motion by constructing a data set using Monte Carlo simulation. Secondly, a genetic algorithm for parallel optimisation of radial basis function neural network (GAPO-RBFNN) is trained to predict the seismic responses of the bridges. Thirdly, a robustness metric specifically designed for bridges is derived and applied to bridge. Finally, the proposed robustness metric is validated on lead rubber bearing (LRB) and shape memory alloy-lead rubber bearing (SMA-LRB) bridges. Results indicate that the GAPO-RBFNN model accurately approximates the mapping relationship between structural parameters and seismic response, with an average error of only 0.32% and a 70% reduction in computation time compared with traditional methods. Moreover, the new robustness metric overcomes the limitations of the dismantled member method and is applicable to bridge. The robustness of the SMA-LRB-ICGB, strengthened by SMA, is improved, providing evidence of the effectiveness of the proposed robustness metric.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Digital twin-based identification of crystal plastic material parameters for weld joints of orthotropic steel decks 基于数字孪晶的正交各向同性钢甲板焊接接头晶体塑性材料参数识别

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-09-07 DOI: 10.1177/13694332241281535

Yang Ye, You-Lin Xu, Wulve Lao, Chuang Cui, Qinghua Zhang, Yinlong Zhou

{"title":"Digital twin-based identification of crystal plastic material parameters for weld joints of orthotropic steel decks","authors":"Yang Ye, You-Lin Xu, Wulve Lao, Chuang Cui, Qinghua Zhang, Yinlong Zhou","doi":"10.1177/13694332241281535","DOIUrl":"https://doi.org/10.1177/13694332241281535","url":null,"abstract":"The identification of crystal plasticity (CP) material parameters is indispensable for using CP models to simulate and understand the microcrack initiation and propagation of orthotropic steel decks (OSD). This study proposes a digital twin (DT)-based framework for identifying CP material parameters of weld joints of OSD by fusing multiscale CP finite element model (CPFEM) with macroscale stress–strain material tests. The material tests of the specimen (physical entity) cut from the weld joints of OSD and sliced to the centimeter scale are carried out using the standard dynamic test system. The CPFEM simulation is used to develop a multiscale virtual entity to map the physical entity. The particle swarm optimization algorithm is used to fuse the CPFEM simulation with the material test data to identify CP material parameters and produce a DT. The results demonstrate that the CP material parameters identified by the proposed framework are more accurate than those identified by a single representative volume element method. The results also show that the DT-based identification of CP material parameters has high applicability.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The thermal responses of composite box girder bridges with corrugated steel webs under solar radiation 带波纹钢腹板的复合箱梁桥在太阳辐射下的热响应

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-09-07 DOI: 10.1177/13694332241281548

Chenzhi Cai, Ming Xu, Xuhui He, Yunfeng Zou, Shiji Huang

{"title":"The thermal responses of composite box girder bridges with corrugated steel webs under solar radiation","authors":"Chenzhi Cai, Ming Xu, Xuhui He, Yunfeng Zou, Shiji Huang","doi":"10.1177/13694332241281548","DOIUrl":"https://doi.org/10.1177/13694332241281548","url":null,"abstract":"Owing to the direct exposure to complex atmospheric environments, the temperature field of composite box girder bridge with corrugated steel webs (CBGB-CSW) is likely non-uniformly distributed. Whereas, the current researches regarding the thermal responses of CBGB-CSW are insufficient, and the thermal responses of CBGB-CSW under solar radiation are still unknown. Therefore, this paper conducted a long-term temperature experiment on a scaled model to explore the temperature distribution characteristics in CBGB-CSW. Meanwhile, a three-dimensional thermal–mechanical coupling Finite Element (FE) model is established to simulate the temperature field in the experiment girder. The accuracy and effectiveness of the developed FE model has been verified by the measured temperature data. Therewith, the thermal responses (i.e., stress and displacement) of a full-scale continuous CBGB-CSW with a span of 150 m are numerically investigated. The results indicate that the maximum stresses always occur at the midspan section (with a depth of 5 m) of the continuous CBGB-CSW, and considerable concentrations of stress are observed in the steel-concrete junction. The maximum longitudinal tensile and compressive normal stresses within 0.4 m of the upper junction can reach 5.55 MPa and −8.46 MPa respectively, and those of the lower junction can reach 6.96 MPa and −7.05 MPa respectively. Besides, owing to the impacts of vertical and horizontal temperature gradients, significant displacements of the whole bridge can also be observed. The maximum vertical displacement (5.33 mm) of the CBGB-CSW is estimated at the top plate in the midspan, while the maximum horizontal displacement (0.74 mm) is estimated at the trough of the southern corrugated steel web in the midspan. Notably, the outcomes of this paper can provide some useful references for engineers and scholars to understand the thermal responses of the CBGB-CSW.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Experimental study on strengthening steel-truss bridge diagonal members using carbon-fibre-reinforced polymer bonding methods 使用碳纤维增强聚合物粘结方法加固钢桁梁桥斜拉构件的实验研究

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-09-07 DOI: 10.1177/13694332241281545

Ngoc Vinh Pham, Kazuo Ohgaki, Takeshi Miyashita, Ngoc Quang Pham

{"title":"Experimental study on strengthening steel-truss bridge diagonal members using carbon-fibre-reinforced polymer bonding methods","authors":"Ngoc Vinh Pham, Kazuo Ohgaki, Takeshi Miyashita, Ngoc Quang Pham","doi":"10.1177/13694332241281545","DOIUrl":"https://doi.org/10.1177/13694332241281545","url":null,"abstract":"This study investigated the effectiveness of carbon fibre-reinforced polymer (CFRP) materials in strengthening the diagonal tension members of steel-truss bridges. Monotonic tensile and cyclic loading tests were performed on CFRP-strengthened specimens with variations in the CFRP-bonding range on the flanges. This study focused on the strengthening methods A and B, which were proposed to address insufficient CFRP anchoring near gusset plates by bonding CFRP sheets to both sides of the flanges of the diagonal tension members. The results of the monotonic tensile loading tests indicated a significant increase in tensile stiffness and substantial improvements in yield strength (27%) and ultimate load-bearing capacity (51%) when the strengthening methods A and B were employed. Delamination of the bonded CFRP sheets was effectively delayed, occurring only after the steel yielded, owing to the use of a ductile adhesive (polyurea putty). On the other hand, the cyclic loading tests demonstrated a significant enhancement in the load-bearing capacities (33% for tensile, 32% for compressive) of the strengthened specimens. Moreover, the energy dissipation capacities of the specimens strengthened by methods A and B exhibited linear increases, with 12% and 14% higher values respectively than those of the non-strengthened specimen. Although the stiffnesses (tensile and compressive) of the strengthened specimens decreased in each loading loop, the strengthening methods A and B maintained the stiffness values at approximately 35% higher than those of the non-strengthened specimen.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Experimental and numerical study on mechanical properties of PC shear wall bolted connection joints PC 剪力墙螺栓连接接头力学性能的实验和数值研究

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-09-06 DOI: 10.1177/13694332241281542

Yindong Gong, Yunpeng Chu, Yanhui Liu, Zhipeng Zhai

{"title":"Experimental and numerical study on mechanical properties of PC shear wall bolted connection joints","authors":"Yindong Gong, Yunpeng Chu, Yanhui Liu, Zhipeng Zhai","doi":"10.1177/13694332241281542","DOIUrl":"https://doi.org/10.1177/13694332241281542","url":null,"abstract":"Steel-bolt connection joint with embedded steel is increasingly utilized for prefabricated concrete (PC) shear walls and plays an indispensable role in the shear force transmission process. To enhance the mechanical performance of the connection joint in PC walls, a new pre-embedded steel bolt connection is proposed in this paper. The new connection can quickly connect prefabricated shear walls, with a simple construction process and short construction period. The present study respectively designed and fabricated four specimens with different connection configurations to conduct shear performance tests on the steel connectors and hysteresis performance tests on the connection joint. A numerical model for the joint was then established based on the shear test data of the steel connectors, to further analyze the mechanical performance of the proposed connection joint. The results indicate that depending on the different steel connection configurations, shear failure modes can be categorized into bolt shear failure and embedded steel pullout failure. The shear studs have minimal impact on the shear performance of the steel connectors. The flanges on both sides of the joint effectively enhance the hysteresis performance of the connection joint. Among the tested specimens, the one with a steel configuration at the connection joint featuring ribbed channel steel exhibits superior hysteresis performance, with higher load-bearing capacity, gradual stiffness degradation, and excellent energy dissipation capability. It is recommended to use these connection details for embedded steel connections at the joint during the design.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Performance of steel beams with endplate connections exposed to fire 带端板连接的钢梁在火灾中的性能

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-09-04 DOI: 10.1177/13694332241281524

Abbas Rezaeian, Mohammad Sajjad Salehi, Venkatesh Kodur

{"title":"Performance of steel beams with endplate connections exposed to fire","authors":"Abbas Rezaeian, Mohammad Sajjad Salehi, Venkatesh Kodur","doi":"10.1177/13694332241281524","DOIUrl":"https://doi.org/10.1177/13694332241281524","url":null,"abstract":"This paper presents results from an experimental study on the fire behavior of endplate joints and the connected steel beams in a moment resisting frame (MRF). Utilizing the subframe assemblage, full-scale steel beams with various endplate connections were tested according to the ISO834 standard fire exposure. The thermal and structural responses of the beam and its endplate joints to the column, together with failure modes were monitored throughout the fire test. The effect of key factors such as endplate dimensions, bolt size and grade, and the presence of stiffeners were investigated. The results of the fire tests show that the specimen experiences flexural failure in 746–773°C temperature range, through mid-span deflection exceeding the deflection limit as per British standard 476. When the beam experienced a deflection greater than span/20, the endplate joints got fractured at about 40 min in to fire at temperatures higher than 815°C. The results also indicated that the endplate bending and the tensile fracture of the bolts control the failure of the endplate joint under fire exposure. The endplate connection details have a notable influence on the beam’s behavior under fire conditions, and the use of grade 10.9 bolts and wider endplates in the connection can improve the fire resistance of MRFs.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Form-finding of tensegrity structures based on graph neural networks 基于图神经网络的张力整体结构的形式搜索

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-09-02 DOI: 10.1177/13694332241276051

Shoufei Shao, Maozu Guo, Ailin Zhang, Yanxia Zhang, Yang Li, ZhuoXuan Li

{"title":"Form-finding of tensegrity structures based on graph neural networks","authors":"Shoufei Shao, Maozu Guo, Ailin Zhang, Yanxia Zhang, Yang Li, ZhuoXuan Li","doi":"10.1177/13694332241276051","DOIUrl":"https://doi.org/10.1177/13694332241276051","url":null,"abstract":"Tensegrity structures, characterized by enhanced stiffness, slender struts, and superior buckling resistance, have found wide-ranging applications in fields such as engineering, architecture, art, biology, and robotics, attracting extensive attention from researchers. The form-finding process, a critical step in the design of tensegrity structures, aims to discover the self-equilibrated configuration that satisfies specific design requirements. Traditional form-finding methods based on force density often require repeated steps of eigenvalue decomposition and singular value decomposition, making the process complex. In contrast, this paper introduces a new intelligent form-finding algorithm that uses the force density method and combines the Coati optimization algorithm with Graph Neural Networks. This algorithm avoids the complex steps of eigenvalue and singular value decomposition and integrates the physical knowledge of the structure, making the form-finding process faster and more accurate. In this algorithm, various force densities are initially randomized and input into a trained Graph Neural Networks to predict a fitness function’s value. Through optimizing the constrained fitness function, the algorithm determines the appropriate structural force density and coordinates, thereby completing the form-finding process of the structure. The paper presents seven typical tensegrity structure examples and compares various form-finding methods. The results of numerical examples show that the method proposed in this paper can find solutions that align with the super-stable line more quickly and accurately, demonstrating its potential value in practical applications.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Hysteretic performance of high-strength steel square hollow section T joints considering fracture behavior 考虑断裂行为的高强度钢方形空心截面 T 型接头的滞回性能

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-09-01 DOI: 10.1177/13694332241276056

Shubang Liu, Shicai Chen, Liqun Hou, Zhengming Zhou

{"title":"Hysteretic performance of high-strength steel square hollow section T joints considering fracture behavior","authors":"Shubang Liu, Shicai Chen, Liqun Hou, Zhengming Zhou","doi":"10.1177/13694332241276056","DOIUrl":"https://doi.org/10.1177/13694332241276056","url":null,"abstract":"The performance of high-strength steel (HSS) welding joints is crucial for tubular structure design. This paper investigates the hysteretic performance of HSS square hollow section (SHS) T joints considering fracture behaviors. The hysteresis and tensile tests of the HSS SHS T joints and a comparative analysis of failure modes and bearing capacity are conducted. Parameter analysis is conducted based on the validated FE model considering fracture and elastoplastic constitutive relationship with a wide range of parameters covered, including the cross-sectional width ratio and the wall thickness ratio between brace and chord, and the width-thickness ratio of the chord, and the seam weld size of the joint connection. The results show that fracture behavior can affect the failure mode and bearing capacity of the joints, and it cannot be ignored in the hysteresis analysis process. The energy consumption capacity and the ductility coefficients increase when β increases from 0.2 to 1.0, τ increases from 0.3 to 1.0 and 2 γ decreases from 40 to 20. Meanwhile, joints’ failure modes and residual strength vary with the above parameters. It is necessary to use the damage fracture constitutive model of steel in numerical simulation.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The experimental and numerical simulation of interface shear behavior between ECC and coal gangue concrete ECC 与煤矸石混凝土界面剪切行为的实验与数值模拟

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-08-28 DOI: 10.1177/13694332241276055

Weiping Zhao, Xinxin Li, Guangjie Li

{"title":"The experimental and numerical simulation of interface shear behavior between ECC and coal gangue concrete","authors":"Weiping Zhao, Xinxin Li, Guangjie Li","doi":"10.1177/13694332241276055","DOIUrl":"https://doi.org/10.1177/13694332241276055","url":null,"abstract":"Composite concrete structures are designed to integrate various concrete types at different levels, thereby improving their shear properties. In this paper, the effects of the interfacial keyway, reinforcement ratio, and pouring sequence on the shear strength of concrete-coal gangue concrete interface are studied by experiments and analyses. A total of 10 specimens were made, and the push-off test was carried out. Nonlinear finite element simulation was carried out using ABAQUS, and the influence of keyway angle on crack development was studied based on the extended finite element method (XFEM). It is found that the remarkable tensile and crack stability of engineered cementitious composites (ECC) has a positive effect on the shear strength of the ECC-coal gangue concrete interface. The ultimate shear strength of the interface and the ductility of the interface under shear load are significantly improved by interfacial shear reinforcement. The introduction of an interfacial keyway improves the shear strength of the concrete interface, and the number of keyways has the most significant effect on the interfacial shear strength. The angle between the crack propagation direction and interface will increase with the increase of keyway angle, the simulation results are in good agreement with the experiments.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Flexural behaviour of semi-precast slabs of fibre-reinforced concrete reinforced with prestressed basalt fibre-reinforced polymer and steel bars 用预应力玄武岩纤维增强聚合物和钢筋加固的纤维增强混凝土半预制板的挠曲性能

IF 2.6 4区工程技术

Advances in Structural Engineering Pub Date : 2024-08-24 DOI: 10.1177/13694332241276059

Maha RI Mahmoud, Xin Wang, Bai Xingyu, Mohamedelmujtaba Altayeb, Shui Liu, Amr MA Moussa

{"title":"Flexural behaviour of semi-precast slabs of fibre-reinforced concrete reinforced with prestressed basalt fibre-reinforced polymer and steel bars","authors":"Maha RI Mahmoud, Xin Wang, Bai Xingyu, Mohamedelmujtaba Altayeb, Shui Liu, Amr MA Moussa","doi":"10.1177/13694332241276059","DOIUrl":"https://doi.org/10.1177/13694332241276059","url":null,"abstract":"This study investigates the flexural behaviour of eight full-scale semi-precast slabs, where the precast bottom layer comprises fibre-reinforced concrete (FRC) with varying fibre types such as steel, chopped basalt, and basalt minibar fibres. The upper layer of these semi-precast slabs is cast-in-situ normal-strength concrete, with the interface bonding between the layers enhanced by two steel truss members. The semi-precast FRC slabs are longitudinally reinforced with prestressed basalt fibre-reinforced polymer (BFRP) and steel bars. Within the eight semi-precast slabs, two reference specimens are prepared for comparative analysis. These reference specimens have a precast bottom panel cast with normal-strength concrete, with one reinforced using longitudinal steel bars and the other reinforced with prestressed BFRP bars. The study focuses on assessing cracking patterns, ultimate moment capacity, stress distribution, stiffness, and ductility of these semi-precast slabs. The experimental test results demonstrate that the use of FRC and prestressed BFRP bars has a significant effect on improving the flexural behaviour of the semi-precast slabs, enhancing their strength, curbing deflection, cracking behaviour, and ultimate load capacity. Furthermore, the research includes an evaluation comparing three distinct code specifications for ultimate moment capacity against the experimental outcomes. This comparative analysis reveals a notable discrepancy, emphasizing the need to revise current code equations to better address the complexities associated with combining FRC and prestressed FRP materials in structural applications.","PeriodicalId":50849,"journal":{"name":"Advances in Structural Engineering","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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