Effect of screw spacing on behavior of axially loaded back-to-back cold-formed steel built-up channel sections Tập 21 Số 3 - Trang 474-487 - 2018
Tina Chui Huon Ting, Krishanu Roy, Hieng Ho Lau, James B.P. Lim
In cold-formed steel structures, such as trusses, wall frames, and portal frames, the use of back-to-back built-up cold-formed steel channel sections for the column members is becoming increasingly popular. In such an arrangement, intermediate fasteners at discrete points along the length prevent the individual channel sections from buckling independently. Current guidance by the American...... hiện toàn bộ
Modeling the Amount of Steel Corrosion at the Cracking of Concrete Cover Tập 9 Số 5 - Trang 687-696 - 2006
Yongjun Zhao, Weiliang Jin
This article tries to contribute to quantify the amount of steel corrosion at the cracking of concrete cover. The amount of steel corrosion when the concrete cover cracks, is a key factor in the life of concrete structures. During the time between steel depassivation and concrete cover cracking, the process of steel corrosion develops in three stages: free expansion of the corrosion produ...... hiện toàn bộ
Fragility analysis of a subway station structure by incremental dynamic analysis Tập 20 Số 7 - Trang 1111-1124 - 2017
Tong Liu, Zhiyi Chen, Yong Yuan, Xiaoyun Shao
Fragility analysis constitutes the basis in seismic risk assessment and performance-based earthquake engineering during which the probability of a structure response exceeding a certain limit state at a given seismic intensity is sought to relate seismic intensity and structural vulnerability. In this article, the seismic vulnerability assessment of a subway station structure is investiga...... hiện toàn bộ
Seismic Performance Upgrading for Underground Structures by Introducing Shear Panel Dampers Tập 17 Số 9 - Trang 1343-1357 - 2014
Zhiyi Chen, Wei Chen, Guoqiang Bian
A new method of upgrading seismic performance for underground structures is proposed in this paper. Both single-story and double-story underground subway stations are studied. Using the famous single-story Daikai Station model, by which the reliability of the numerical model is verified, seismic efficiency of Shear Panel Damper (SPD) in underground structures is proven. Then, in order to ...... hiện toàn bộ
A review of experimental results on structural performance of reinforced recycled aggregate concrete beams and columns Tập 23 Số 15 - Trang 3351-3369 - 2020
Simret Deresa, Jinjun Xu, Cristoforo Demartino, YeongAe Heo, Zhi Li, Yan Xiao
This article presents a comprehensive and critical review of the structural performances of reinforced recycled aggregate concrete beams and columns based on experimental results reported in the literature. Extensive data sets collected from the literature are categorized to investigate the effects on the local and global structural behavior. First, the flexural and shear response of rein...... hiện toàn bộ
Tension Force and Structural Parameter Identification of Bridge Cables Tập 15 Số 6 - Trang 983-995 - 2012
W.Y. Liao, Yi‐Qing Ni, Gang Zheng
Vibration measurement is one of the most widely used methods for tension evaluation and condition assessment of stay cables in cable-stayed bridges. In the existing practice, the tension force of a cable is identified from the measured modal frequencies with the use of the taut string theory or empirical formulae, by assuming pre-determined structural parameters (geometric and material pa...... hiện toàn bộ
Initial Stiffness of Reinforced Concrete Columns with Moderate Aspect Ratios Tập 15 Số 2 - Trang 265-276 - 2012
Cao Thanh Ngoc Tran, Bing Li
The estimation of the initial stiffness of columns subjected to seismic loadings has long been a matter of considerable uncertainty. This paper reports a study that is devoted to addressing this uncertainty by developing a rational method to determine the initial stiffness of RC columns when subjected to seismic loads. A comprehensive parametric study based on a proposed method is initial...... hiện toàn bộ
Behaviour of Axially Loaded Concrete Filled Stainless Steel Elliptical Stub Columns Tập 13 Số 3 - Trang 493-500 - 2010
Dennis Lam, Leroy Gardner, M. Burdett
This paper presents the details of an experimental investigation on the behaviour of axially loaded concrete-filled stainless steel elliptical hollow sections. The experimental investigation was conducted using normal and high strength concrete of 30 and 100 MPa. The current study is based on stub column tests and is therefore limited to cross-section capacity. Based on the equations prop...... hiện toàn bộ
Double-tube concrete columns with a high-strength internal steel tube: Concept and behaviour under axial compression Tập 21 Số 10 - Trang 1585-1594 - 2018
J.G. Teng, Zihao Wang, Tao Yu, Zhao Yang, Lijuan Li
This article presents a new form of fibre-reinforced polymer-concrete-steel hybrid columns and demonstrates some of its expected advantages using results from an experimental study. These columns consist of a concrete-filled fibre-reinforced polymer tube that is internally reinforced with a high-strength steel tube and are referred to as hybrid double-tube concrete columns. The three comp...... hiện toàn bộ