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Applied Sciences
Special Issues
Seismic Design and Damage Evaluation of Steel Structures
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Seismic Design and Damage Evaluation of Steel Structures

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 3578

Special Issue Editors

Prof. Dr. Xu Xie

E-Mail Website
Guest Editor
College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
Interests: seismic design; steel structures; steel materials; mechanical properties; ultra low-cycle fatigue; hysteretic behavior; constitutive model
Dr. Zhanzhan Tang

E-Mail Website
Guest Editor
College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China
Interests: seismic performance; steel structures; material damage; mechanical properties; ultra low-cycle fatigue behavior; hysteretic behavior; fatigue mechanism
Prof. Dr. He Zhang

E-Mail Website
Guest Editor
College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
Interests: seismic design; fatigue of steel structural component; dynamic analysis of bridges; smart sensing technologies; AI based identification of structural parameters
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is our pleasure to invite your submissions to the Special Issue on “Seismic Design and Damage Evaluation of Steel Structures”.

Many steel structures suffered severe seismic damage during the 1994 Northridge earthquake in California and the 1995 Hyogo-ken Nanbu earthquake in Japan. In addition to the traditional structural-buckling failure mode, ultra-low-cycle fatigue (ULCF) fracture of steel materials and welds was observed for the first time. Over the next several decades, a tremendous amount of work has been done on the performance-based seismic design method of steel structures, taking into consideration the effect of plastic deformation. So far, high-precision inelastic seismic analysis methods, improved constitutive models of materials and structures, and seismic-damage indexes have been proposed. In particular, the ductile fracture failure mode, the ULCF fracture mechanism, and the prediction method based on the micromechanism have been established. These achievements mentioned above provide a scientific reference for further study and exploration on the seismic design method of steel structures with consideration of structural damages.

Since we believe that there is still plenty of room for research in the field of seismic design of steel structures, it is our pleasure to launch a Special Issue. In this Special Issue, we invite submissions exploring recent advances in the fields of innovative seismic-design methods and theories, reasonable structural systems, and new anti-earthquake structural measures of steel structures under strong ground motions including in bridges, buildings, and any other types of civil structures. Potential papers include, but are not limited to, the following subjects:

  • Stability of steel structures under the action of earthquakes;
  • Prediction of LCF/ULCF failure of steel materials and structures;
  • Improvement in constitutive models for steel materials and structures;
  • Seismic-performance evaluation methods and seismic-damage index of steel structures;
  • Innovative seismic-response analysis of steel structures;
  • New technologies in seismic reinforcement of steel structures;
  • Innovative structural systems and anti-earthquake structural measures;
  • Case studies on seismic design of complex steel structures.

Prof. Dr. Xu Xie
Dr. Zhanzhan Tang
Prof. Dr. He Zhang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • steel structures
  • steel materials
  • seismic design
  • dynamic analysis
  • low-cycle fatigue
  • ductile fracture
  • fracture mechanism
  • seismic damages
  • hysteretic behavior
  • constitutive models

Published Papers (3 papers)

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Research

19 pages, 11040 KiB  
Article
Cyclic Loading Test of Rectangular Tube-Type Buckling-Restrained Braces with Enhancements to Prevent Local Bulging Failure
by Byeong-Hun Kwak, Ji-Hun Park and Sook-Jin Ahn
Appl. Sci. 2023, 13(19), 10926; https://doi.org/10.3390/app131910926 - 02 Oct 2023
Cited by 1 | Viewed by 678
Abstract
In this study, innovative enhancements of rectangular tube-type buckling-restrained braces are proposed to prevent bulging failure on the surface of the outer restrainer and validated experimentally. First, an inner restrainer composed of a bent plate, which increases the stiffness and strength to resist [...] Read more.
In this study, innovative enhancements of rectangular tube-type buckling-restrained braces are proposed to prevent bulging failure on the surface of the outer restrainer and validated experimentally. First, an inner restrainer composed of a bent plate, which increases the stiffness and strength to resist outward force exerted by the steel core subjected to higher-mode buckling, is installed inside the outer restrainer. Second, the unbonding material surrounding the steel core is partially thickened to create additional space to prevent the outward force from being transferred directly along the centerline of the cross-section. Buckling-restrained braces with and without the enhancements are tested via cycling loading to validate the efficiency of the proposed enhancements. Improvements in strength and deformation capacity are evaluated quantitatively. The proposed enhancements increased the compressive strength and cumulative inelastic deformation capacity of the buckling-restrained braces. However, the increased outward force owing to the compression-hardening phenomenon led to bulging failure, where the added inner restrainer terminated. An analytical formula is proposed to estimate the outward-force-resisting capacity of the inner restrainer, which predicted bulging failure adequately. Full article
(This article belongs to the Special Issue Seismic Design and Damage Evaluation of Steel Structures)
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13 pages, 2328 KiB  
Article
Study of Effective Length Factor of Frame–Core Wall Structure with Cross-Layer Columns
by Zaigen Mu, Yue Xu, Yuqing Yang and Zhong Fan
Appl. Sci. 2023, 13(12), 6875; https://doi.org/10.3390/app13126875 - 06 Jun 2023
Viewed by 1042
Abstract
The aim of this study was to examine the effective length factor of frame–core wall structures with cross-layer columns, which are relevant for current high-rise building construction. Using the finite element method, improved inflection point method (D-value method), and GB50017-2017, the study investigated [...] Read more.
The aim of this study was to examine the effective length factor of frame–core wall structures with cross-layer columns, which are relevant for current high-rise building construction. Using the finite element method, improved inflection point method (D-value method), and GB50017-2017, the study investigated how the height and distribution of cross-layer columns affect the lateral stiffness ratio, natural vibration period, member internal force, maximum interlayer displacement angle, and effective length factor of the column in the frame–core wall structures. However, the force acting in the frame in the weak axis direction that is considered in GB50017-2017 does not reflect the actual mechanical behavior. Therefore, when determining the effective length factor of cross-layer columns, the interaction between the remaining frames’ sub-structure and cross-layer columns is considered and the effective length factor is modified accordingly. A simplified model of a 140 m frame–core wall structure was established for analysis, and it was assumed that rigid links connect the frame and core wall hinged at both ends. The results show that increasing the height and number of cross-layer columns decreased the lateral stiffness ratio of the structure, and increased the maximum interlayer displacement angle and natural vibration period. Furthermore, the effective length factor of the structure decreased with an increase in height and the number of cross-layer columns. The modified effective length factor agrees well with the results obtained by the finite element method. These findings provide a useful reference for calculating the load-carrying capacity of cross-layer columns in engineering. Full article
(This article belongs to the Special Issue Seismic Design and Damage Evaluation of Steel Structures)
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16 pages, 2205 KiB  
Article
Cyclic and Fragility Analysis of a Corroded Bridge Reinforced by Steel Plates under Mainshock and Aftershock Sequences
by Xin Chen, Aihong Kang, Lingkun Chen, Huahuai Sun and Xuan Guo
Appl. Sci. 2022, 12(23), 12078; https://doi.org/10.3390/app122312078 - 25 Nov 2022
Viewed by 943
Abstract
The corrosion of steel bars embedded in concrete structures results in the degradation of their structural capacity. In earthquake-prone zones, the corroded structure may be considerably vulnerable under mainshock–aftershock sequences relative to a single mainshock. Therefore, it is necessary to reinforce corroded structures [...] Read more.
The corrosion of steel bars embedded in concrete structures results in the degradation of their structural capacity. In earthquake-prone zones, the corroded structure may be considerably vulnerable under mainshock–aftershock sequences relative to a single mainshock. Therefore, it is necessary to reinforce corroded structures to resist potential natural hazards. In this study, the effects of both pitting and uniform corrosion on the structural capacity of a bridge pier before and after strengthening were studied. Subsequently, the failure probability of a corroded bridge was calculated, which is conditional on the corrosion level, steel plate thickness, and ground-motion intensity. The findings implied that both pitting and uniform corrosions significantly reduced the capacity of the bridge pier, particularly pitting corrosion. The fragility curves showed that with an increased thickness of the steel plate, the probability of failure decreases if the intensity of the mainshock–aftershock sequences is higher than the threshold value. In addition, the threshold value has a high correlation with the thickness of the steel plate and the corrosion ratio. Full article
(This article belongs to the Special Issue Seismic Design and Damage Evaluation of Steel Structures)
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