Journal of Structural Engineering-asce最新文献

Engineering Review of Wind-Induced Torsional Moment and Response of Buildings 建筑物风致扭转力矩及响应工程综述

Journal of Structural Engineering-asce Pub Date : 2023-11-01 DOI: 10.1061/jsendh.steng-12546

Hamidreza Alinejad, Thomas H.-K. Kang, Seung Yong Jeong, Byeonguk Ahn

引用次数: 0

Web Crippling Design of Cold-Formed Stainless Steel SHS and RHS 冷弯不锈钢SHS和RHS的腹板破坏设计

Journal of Structural Engineering-asce Pub Date : 2023-11-01 DOI: 10.1061/jsendh.steng-12047

Hai-Ting Li, Feng Zhou, Ben Young

引用次数: 0

Intelligent Generative Design for Shear Wall Cross-Sectional Size Using Rule-Embedded Generative Adversarial Network 基于规则嵌入生成对抗网络的剪力墙截面尺寸智能生成设计

Journal of Structural Engineering-asce Pub Date : 2023-11-01 DOI: 10.1061/jsendh.steng-12206

Yitian Feng, Yifan Fei, Yuanqing Lin, Wenjie Liao, Xinzheng Lu

{"title":"Intelligent Generative Design for Shear Wall Cross-Sectional Size Using Rule-Embedded Generative Adversarial Network","authors":"Yitian Feng, Yifan Fei, Yuanqing Lin, Wenjie Liao, Xinzheng Lu","doi":"10.1061/jsendh.steng-12206","DOIUrl":"https://doi.org/10.1061/jsendh.steng-12206","url":null,"abstract":"Deep learning–driven intelligent generative design for building structures provides novel insights into intelligent construction. In a structural scheme design, the cross-sectional design of the shear wall components is critical. However, the current manual method is time-consuming and labor-intensive, and a statistical regression–based design is insufficiently accurate. Satisfying the requirements of a complex shear wall design in the real world is difficult for both methods. Generative adversarial networks (GANs) can extract implicit design laws by learning from design data and conduct end-to-end design effectively and rapidly. Although GANs have been adopted for intelligent structural design, some design rules established by competent engineers are difficult to capture. Hence, this study developed and subsequently adopted a rule-embedded GAN called StructGAN-Rule to address the demand for a rapid and accurate cross-sectional design of shear wall components. Specifically, a representation method that integrates design images and multiple design conditions was first established, which was followed by the construction of the training data set. Subsequently, based on the design rules, a differentiable tensor operator was built as a rule evaluator, which was embedded in the GAN to guide and constrain the training process. Finally, following the training of StructGAN-Rule, intelligent generative cross-sectional design based on the developed postprocessing method was effectively completed. Case studies on typical shear wall structures demonstrated that the StructGAN-Rule design satisfied the rule constraints well and was highly consistent with the design of engineers (approximately 1% difference). Moreover, the design efficiency was improved 6–10 times compared with that of the latter.","PeriodicalId":17068,"journal":{"name":"Journal of Structural Engineering-asce","volume":"98 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134957393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Prediction of Moment–Curvature Response and Maximum Bending Resistance for Hybrid NSC-UHPC Elements NSC-UHPC混合单元弯矩-曲率响应及最大抗弯抗力预测

Journal of Structural Engineering-asce Pub Date : 2023-11-01 DOI: 10.1061/jsendh.steng-12407

M. Pharand, J.-P. Charron

{"title":"Prediction of Moment–Curvature Response and Maximum Bending Resistance for Hybrid NSC-UHPC Elements","authors":"M. Pharand, J.-P. Charron","doi":"10.1061/jsendh.steng-12407","DOIUrl":"https://doi.org/10.1061/jsendh.steng-12407","url":null,"abstract":"Exceptional mechanical properties of ultra-high performance concretes (UHPC) offer strong strengthening capacities in bending and shear when used as overlay on normal strength concrete (NSC) structures. Nonetheless, lack of simple and intuitive design models for hybrid elements in design guidelines refrain designers from using UHPC overlays for structural applications. Thereby, a simplified sectional analysis model for NSC-UHPC hybrid elements was developed based on the philosophy of the Canadian Bridge Design Code CSA-S6. By using a new average stress distribution for NSC in hybrid elements that considers the strain at the extreme compressed fiber, equilibrium of forces can be solved by a second-degree equation with direct computation. The simplified model provides the complete moment–curvature behavior of hybrid elements for design purposes, thus allowing verifications in service and ultimate state conditions. An empiric equation is also proposed to evaluate the maximum bending capacity of hybrid elements for predesign. It only uses an approximation of a lever arm between forces in the hybrid cross section and thus offers a quick and easy way to evaluate the bending capacity. Both tools were validated on a detailed and iterative sectional analysis program and with results of four international experimental campaigns. The simplified sectional analysis model and empirical equation showed very good accuracy at reproducing the behavior of a wide range of NSC-UHPC hybrid elements configurations.","PeriodicalId":17068,"journal":{"name":"Journal of Structural Engineering-asce","volume":"107 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134957392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Shear Mechanism and Size Effect of RC Deep Beams without Stirrups Based on Crack Kinematics in Tests 基于试验裂纹运动学的无箍筋钢筋混凝土深梁剪切机理及尺寸效应

Journal of Structural Engineering-asce Pub Date : 2023-11-01 DOI: 10.1061/jsendh.steng-12375

Zhe Li, Ye Li, Wei-Jian Yi, Yuan Huang, Yun Zhou, Wang-Xi Zhang

引用次数: 0

Wind-Induced Buffeting Vibration of Long-Span Bridge Considering Geometric and Aerodynamic Nonlinearity Based on Reduced-Order Modeling 基于降阶建模的考虑几何非线性和气动非线性的大跨度桥梁风致抖振

Journal of Structural Engineering-asce Pub Date : 2023-11-01 DOI: 10.1061/jsendh.steng-11543

Wei Cui, Lin Zhao, Yaojun Ge

{"title":"Wind-Induced Buffeting Vibration of Long-Span Bridge Considering Geometric and Aerodynamic Nonlinearity Based on Reduced-Order Modeling","authors":"Wei Cui, Lin Zhao, Yaojun Ge","doi":"10.1061/jsendh.steng-11543","DOIUrl":"https://doi.org/10.1061/jsendh.steng-11543","url":null,"abstract":"Aeroelastic instability and buffeting are two wind-induced phenomena for long-span bridges. In the traditional method, aeroelastic instability and buffeting are analyzed separately. If geometric and aerodynamic nonlinearity are required, aeroelastic instability is normally calculated based on finite-element methods, and buffeting is carried out based on linearization of structural and aerodynamic nonlinearity. Then, the standard frequency-domain methods are utilized on the eigenvalue decomposition. However, for ultralong-span bridges, aerostatic deformation, aeroelasticity, and buffeting are strongly coupled. During buffeting, the bridge deck pitching will change both structural stiffness and aerodynamic loads; therefore, the nonlinearity should be included in the long-span bridge buffeting analysis. This paper establishes a reduced-order modeling procedure to simulate the wind-induced buffeting vibration for long-span bridges including the nonlinear aeroelasticity and buffeting force. First, the mode-based vibration formulas are derived to consider both structural and aerodynamic nonlinearity through polynomial expansion. Next, the numerically simulated turbulence is imported into the vibration governing equation, and the structural response can be calculated using the time-domain integration method.","PeriodicalId":17068,"journal":{"name":"Journal of Structural Engineering-asce","volume":"117 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134957795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cyclic Behavior of T-Shaped Composite Plate Shear Walls–Concrete Filled t型组合剪力墙-混凝土的循环性能

Journal of Structural Engineering-asce Pub Date : 2023-08-01 DOI: 10.1061/jsendh.steng-11693

Emre Kizilarslan, Michel Bruneau

引用次数: 0

Reviewers 评论家

Journal of Structural Engineering-asce Pub Date : 2023-02-01 DOI: 10.1061/jsendh.steng-12120

引用次数: 0

Inelastic Response of High-Rise Buildings under Strong Winds: Accuracy of Reduced-Order Building Model and Influence of Biaxial Response Interaction 高层建筑在强风作用下的非弹性响应:建筑降阶模型的精度及双轴响应相互作用的影响

Journal of Structural Engineering-asce Pub Date : 2023-01-01 DOI: 10.1061/jsendh.steng-11069

Jinghui Huang, Xinzhong Chen

{"title":"Inelastic Response of High-Rise Buildings under Strong Winds: Accuracy of Reduced-Order Building Model and Influence of Biaxial Response Interaction","authors":"Jinghui Huang, Xinzhong Chen","doi":"10.1061/jsendh.steng-11069","DOIUrl":"https://doi.org/10.1061/jsendh.steng-11069","url":null,"abstract":"This study examined the accuracy of a reduced-order building model approach for inelastic response analysis of tall buildings under simultaneous actions of both alongwind and crosswind loadings. The reduced-order model was established following the modal pushover analysis procedure. The inelastic building response was represented by fundamental modes in principal directions. The hysteretic relationships of generalized restoring forces and displacements were determined by static modal pushover analysis using nonlinear finite element model with distributed plasticity. These relations were then represented by a biaxial hysteresis model, which leads to state-space equations of the building motion with a reduced-order building model that can be solved by response history analysis or by statistical linearization approach. A comprehensive analysis of response statistics of a 60-story building, including time-varying mean, standard deviation, kurtosis, and peak factors at different wind speeds was carried out using the reduced-order building model and computationally more demanding finite element model. The results demonstrate the accuracy of the reduced-order building model. The statistical linearization approach based on Gaussian response assumption can also offer quite accurate estimations, although it can be further improved by considering the non-Gaussian probability distribution of response caused by yielding. The interaction of inelastic alongwind and crosswind responses was addressed. The challenges faced in the estimation of time-varying mean component of inelastic response were also highlighted.","PeriodicalId":17068,"journal":{"name":"Journal of Structural Engineering-asce","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136367733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Dynamic Responses of RC Columns under Axial Load and Lateral Impact 钢筋混凝土柱在轴向荷载和侧向冲击作用下的动力响应

Journal of Structural Engineering-asce Pub Date : 2023-01-01 DOI: 10.1061/jsendh.steng-11612

Jing-Ming Sun, Wei-Jian Yi, Hui Chen, Fei Peng, Yun Zhou, Wang-Xi Zhang

{"title":"Dynamic Responses of RC Columns under Axial Load and Lateral Impact","authors":"Jing-Ming Sun, Wei-Jian Yi, Hui Chen, Fei Peng, Yun Zhou, Wang-Xi Zhang","doi":"10.1061/jsendh.steng-11612","DOIUrl":"https://doi.org/10.1061/jsendh.steng-11612","url":null,"abstract":"A novel pendulum test setup was designed to investigate the influence of the axial loading method on the dynamic responses of reinforced concrete (RC) columns under impact load. The inertia effect caused by the vertical vibration of superstructures above columns can be implemented by the setup. A total of six RC columns were tested under different axial compression ratios and impact velocities. The impact force, pendulum velocity, displacement, axial force, and acceleration of the specimens were measured, and the damage evolution during the test was recorded by high-speed cameras. The test results indicate that when the axial compression ratio increases from 0 to 0.64 and the impact velocity increases from 2.58 to 4.58 m/s, the failure mode of the column changes from flexural failure to shear failure. The impact force time-history curves of the shear failure controlled columns are different from those of the flexural failure controlled columns. The vertical mass of the superstructure above the RC column improves the horizontal and vertical inertia effect of the column. Besides, a two-degrees of freedom (2DOF) model was modified to predict the impact responses of the specimens. Two axial force conditions, including measured dynamic axial force and constant axial force (without considering the axial inertia effect and axial force variation), were compared using the modified model. Afterward, the modified model was compared with the conventional 2DOF model using the test results of 12 RC columns. Further, a parametric study of the axial compression ratio and the impact velocity was performed using the modified model, showing that they present significant influences on the impact performance of RC columns.","PeriodicalId":17068,"journal":{"name":"Journal of Structural Engineering-asce","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136052655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4