Latin American Journal of Solids and Structures最新文献_第3页

Analysis and optimization of impact energy absorption performance of mine refuge chamber filled with concave triangular negative poisson's ratio material 凹三角形负泊松比材料充填矿山避难硐室冲击吸能性能分析与优化

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-05-01 DOI: 10.1590/1679-78257438

Kun Yang, Yiwen Chen, Yibo Wang, Hao Chen, Shourui Wang

引用次数: 0

Interference effects mapping on the static wind loading of a tall building 高层建筑静风荷载的干扰效应映射

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-04-17 DOI: 10.1590/1679-78257330

Thiarly Feitosa Afonso de Lavôr, J. Brito, A. Loredo-Souza

引用次数: 2

A new algorithm to calculate complex material parameters in piezoelectric stacks 压电堆中复杂材料参数计算的新算法

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-04-14 DOI: 10.1590/1679-78257491

Khoa Ngo-Nhu, Sy Nguyen-Van, Dung Luong-Viet, N. Nguyen-Dinh, Hoai Nguyen Thị, Anh-Tuan Dang, Ngoc Pham Thi Bich

引用次数: 0

Effect of axial and rotational restraint on performance of composite beams with fire protection coating 轴向和旋转约束对涂有防火涂层的组合梁性能的影响

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-04-07 DOI: 10.1590/1679-78257403

I. C. S. Leite, V. P. Silva

{"title":"Effect of axial and rotational restraint on performance of composite beams with fire protection coating","authors":"I. C. S. Leite, V. P. Silva","doi":"10.1590/1679-78257403","DOIUrl":"https://doi.org/10.1590/1679-78257403","url":null,"abstract":"This paper presents the behavior of steel-concrete composite beams with fire protection using the finite element software ABAQUS. An extensive parametric study was carried out to verify the influence of the axial and rotational restraint stiffness, the influence of the spans and the influence of the variation of the fire protection coating, topic with few studies by other authors. The focus of this paper was to verify the axial forces on the supports to study the influence of these forces on the surrounding elements: columns and connections. The study shows that axial and rotational constraints have an important influence on the beams. The values of axial forces are proportionally greater as the beam span is increased. Also verified was that the beam behavior does not change with the variation of the fire protection coating. Finally, the study brings a new approach to the importance of investigating the forces of interaction between beams and columns, as theses forces can lead to unsafe design because the compressive forces in the interaction with the columns and the tensile forces in the catenary phase in connections.","PeriodicalId":18192,"journal":{"name":"Latin American Journal of Solids and Structures","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67623298","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

Design and evaluation of dual-resonant aggregates metaconcrete 双共振骨料混凝土设计与评价

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-03-27 DOI: 10.1590/1679-78257392

En-Yong Zhang, Haixia Zhao, Guoyun Lu, Pengcheng Chen, Huiwei Yang

引用次数: 2

Numerically study of SSSI effect on nuclear power plant on layered soil 层状土上核电站SSSI效应的数值研究

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-03-27 DOI: 10.1590/1679-78257508

Qun Chen, Mi Zhao, Junqing Zhang, Xiu-li Du

{"title":"Numerically study of SSSI effect on nuclear power plant on layered soil","authors":"Qun Chen, Mi Zhao, Junqing Zhang, Xiu-li Du","doi":"10.1590/1679-78257508","DOIUrl":"https://doi.org/10.1590/1679-78257508","url":null,"abstract":"In typical dynamic soil-structure interaction (SSI) problems, the dynamic response a structure can be affected by the existence of some nearby structures, which is sometimes referred to as the dynamic structure-soil-structure interaction (SSSI). This effect is especially important in the earthquake engineering design of adjacent nuclear power plants, as the safety risk is relatively high. However, the current understanding on the SSSI of nuclear power plants is still insufficient. In this work, we use the finite element method to investigate the SSSI of two nuclear power plants located at a specific distance under earthquake excitation. Four nuclear-power-plant-soil systems are designed to account for the SSI and SSSI respectively, where the soil properties are obtained from drilling data. The effect of the SSSI on the nuclear power plants is studied by comparing the dynamic responses of four nuclear power plants-soil systems in vertical and horizontal directions, in which both layered soils and local weak interlayer soils are considered. The results of numerical study show that the presence of one nuclear power plant has a favorable effect on the seismic response of an adjacent nuclear power plant, such as reducing the displacement response, but this effect is limited. In addition, the SSSI effect is related to not only the soil properties, but also the direction of ground motion. Furthermore, the existence of soft soil layers complicates the SSSI effect. The results provide important insights for the construction and expansion of nuclear power plants.","PeriodicalId":18192,"journal":{"name":"Latin American Journal of Solids and Structures","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67623667","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

CFRP repair effectiveness on compressed steel tubular members with circular cutout CFRP对圆形开口受压钢管构件的修复效果

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-03-13 DOI: 10.1590/1679-78257357

J. Martinez, J. C. Cyrino, M. Vaz, I. D. Hernández, V. D. Torres, V. Perrut, Gustavo Gomes de Paula

引用次数: 0

Study on vibration isolation performance of composite multilayer wave impeding block based on wave impedance ratio under an underground dynamic load 地下动荷载作用下基于波阻抗比的复合多层阻波块体隔振性能研究

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-03-13 DOI: 10.1590/1679-78257439

Mengmeng Zhang, Qiang Ma

{"title":"Study on vibration isolation performance of composite multilayer wave impeding block based on wave impedance ratio under an underground dynamic load","authors":"Mengmeng Zhang, Qiang Ma","doi":"10.1590/1679-78257439","DOIUrl":"https://doi.org/10.1590/1679-78257439","url":null,"abstract":"Based on the theory of single-phase elastic medium and unsaturated porous medium, the vibration isolation effect of composite multilayer wave impeding block (WIB) in the unsaturated ground under an underground dynamic load is investigated. The results show that the best vibration isolation effect can be obtained by designing the wave impedance ratio between the composite multilayer WIB and unsaturated ground. The composite multilayer WIB improves the vibration-damping bandwidth compared with the homogeneous WIB. The vibration isolation effect is better the closer the embedded depth of the composite multilayer WIB is to the vibration source, and its vibration isolation effect increases significantly with the increase of thickness, but when the thickness of the WIB exceeds a certain critical thickness, its vibration isolation effect decreases with the increase of thickness. Soil saturation has a significant effect on the vibration isolation effect of composite multilayer WIB in the unsaturated ground, and the composite multilayer WIB can achieve a better vibration isolation effect at low saturation.","PeriodicalId":18192,"journal":{"name":"Latin American Journal of Solids and Structures","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67623874","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: 1

Analysis of the effect of localized corrosion shape on a cracked and notched 2024 AL plate repaired with composite patch under thermo-mechanical loading 热机械载荷下复合修补裂纹缺口2024 AL板局部腐蚀形态的影响分析

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-02-13 DOI: 10.1590/1679-78257415

Hayet Benzineb, M. Berrahou, Leila Belkaddour

引用次数: 0

A study of TLCD parameters for structural vibration mitigation TLCD结构减振参数研究

IF 1.2 4区工程技术

Latin American Journal of Solids and Structures Pub Date : 2023-02-13 DOI: 10.1590/1679-78257412

Maurício Vitali Mendes, Lucas Borchardt Ghedini, Rafael Neponuceno Batista, L. Pedroso

{"title":"A study of TLCD parameters for structural vibration mitigation","authors":"Maurício Vitali Mendes, Lucas Borchardt Ghedini, Rafael Neponuceno Batista, L. Pedroso","doi":"10.1590/1679-78257412","DOIUrl":"https://doi.org/10.1590/1679-78257412","url":null,"abstract":"In this article, the efficiency of the tuned liquid column damper (TLCD) in reducing structural vibration is analyzed. The analysis by numerical methods and by analytical methods is adopted in the search for the ideal parameters for the liquid column. The equivalent linear model is considered for the U-shaped liquid column equation of motion with damping resulting from an orifice. Thus, variation of TLCD parameters for different loads is investigated. Initially, for the numerical study in conjunction with the analytical formulation, a sinusoidal forcing is adopted. Subsequently, the action of an earthquake through the recorded ground accelerations is considered in the case study. Optimal TLCD parameters are presented via response map for reducing the structure's maximum permanent response to harmonic excitation and for reducing the structure's rms response to seismic excitation with wide frequency and various amplitude. The variation of the TLCD parameters presented by the response map is directly related to the force acting on the structure. However, it is verified that regardless of the acting force, there is an ideal frequency range to tune the TLCD where the greatest reductions in the primary system response are found. It appears that reducing the aspect ratio of the liquid column makes this range narrower, making the damper more sensitive to parameter variations, as well as its performance. It is also observed that the increase in the attenuator mass ratio combined with the correct tuning and damping ratios present greater reductions in structural vibration. Also, the frequency ratio is reduced with the increase of the mass ratio, while the damping rate of the liquid column increases. From the ideal liquid column parameters determined by the parametric analysis, structural response reductions of approximately 60% were achieved.","PeriodicalId":18192,"journal":{"name":"Latin American Journal of Solids and Structures","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67623141","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