Structural Behaviour of Strengthened High-Performance Concrete-Filled Double Skin Steel Tube Beams

2020 ◽  
pp. 87-93
Author(s):  
Ehsan Nikbakht ◽  
Nur Illia Shuhadah ◽  
Ramanathan A/L Ganapathy ◽  
Shukanthi A/P Subramaniam ◽  
Nabilah Abu Bakar
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Steel Tube ◽  
Structural Behaviour ◽  
Double Skin

scholarly journals Blast Analysis on In-Filled Steel Tube Columns

2020 ◽  
Vol 6 (6) ◽  
pp. 50-53
Author(s):  
Karthik N Ganiga ◽  
Ibrahim Mahzeen ◽  
Mohammed Safan ◽  
Shaikh Fazil M U ◽  
Shilpa S
Keyword(s):  
Construction Industry ◽  
High Performance ◽  
High Performance Concrete ◽  
Steel Tube ◽  
Blast Load ◽  
Ansys Software ◽  
Ultra High Performance Concrete ◽  
Steel Tubes ◽  
Permanent Formwork ◽  
Double Skin

In recent years, a large number of studies have been carried out to investigate the behaviours of concrete filled double skin steel tube (CFDST) members due to its increasing popularity in the construction industry. This project aims to study on ultra-high performance concrete filled double-skin tubes subjected to blast loading with cross section being square for both inner and outer steel tubes using ANSYS software. It is evident that the proposed CFDST column was able to withstand a large blast load without failure so that it has the potential to be used in high-value buildings as well as critical infrastructures. The steel tubes and concrete work together well and integrity of steel concrete interface is maintained. Steel tubes in inner and outer can acts as permanent formwork and primary reinforcement. ANSYS results shows that the CFDA column can withstand applied blast load.

Expansive ultra-high performance concrete for concrete-filled steel tube applications

2020 ◽  
Vol 114 ◽  
pp. 103813
Author(s):  
Peiliang Shen ◽  
Jian-Xin Lu ◽  
Haibing Zheng ◽  
Linnu Lu ◽  
Fazhou Wang ◽  
...  
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Steel Tube ◽  
Ultra High Performance Concrete ◽  
Concrete Filled Steel Tube

scholarly journals Analytical Assessment on the Structural Behaviour of CFST and CFDST Short Columns using Ansys

2020 ◽  
Vol 9 (1) ◽  
pp. 2505-2510
Keyword(s):  
Plain Concrete ◽  
Steel Tube ◽  
Steel Plates ◽  
Bond Quality ◽  
Structural Behaviour ◽  
Steel Tubes ◽  
Dead Weight ◽  
Short Columns ◽  
Double Skin ◽  
In Fire

Composite sections are much of the time used in structures on account of the straightforwardness and speed of erection, and prevalent in fire situation. In concrete consumed chambers the unfilled space is either filled by plain concrete or fortified concrete. In order to decrease the dead weight of composite portions and to assemble the detainment and toughness of the Concrete In-Filled Double Skinned Steel Tubular (CFDST) fragments were grasped. Two reference models, for instance, Concrete Filled Steel Tube (CFST) and Concrete In-Filled Double Skin Steel Tubes (CFDST) were endorsed and were used as references for the parametric examination. The game plan of furrowed steel plates is to improve the bond quality between the strong and the steel tubes and to manufacture the store passing on cutoff of the fragment. The parameters considered in the examination consolidated the strong assessment, thickness of the steel plate and steel grade. The composite structure under scrutiny was impersonated with a tri dimensional numerical model using the ANSYS programming, which relies upon the Finite Element Method (FEM). Examination were done reliant on the center point compressive weight. Examination of the results provoked the assurance that changing a single parameter didn't assemble as far as possible considering the way that the failure was moved to other essential parts in the composite sectionThe decisive results got from the examination of composite portion are improvement or abatement breaking point of fragment that influences the nature of the area in view of changes in the material properties. Sort of composite fragment is included to consider for feasibly picked as building structure. Finally, the stack passing on cutoff of the wrinkled composite sections are higher than the sustained fragment

scholarly journals UHPC Infilled Circular steel Tube Column Design

2021 ◽  
Author(s):  
Youssef Hilal
Keyword(s):  
Cross Section ◽  
High Performance ◽  
High Performance Concrete ◽  
Steel Tube ◽  
Design Code ◽  
Ultra High Performance Concrete ◽  
Steel Tubes ◽  
Design Strength ◽  
Circular Steel Tube ◽  
Column Design

Previous researchers studied the behavior of Ultra-High Performance Concrete (UHPC) columns confined with steel tubes. However, predicting the influence of the confinement effect and the compressive capacity of these columns has yet to be further examined. Currently, the Canadian design code limits for reinforced concrete do not reach the strength nor the strain produced by using UHPC. This project uses the Canadian design methods for a cross-section of UHPC to form a column interaction curve and compared it with six test specimens. The effects of steel tube confinement will also be examined. Additionally, the Eurocode 4 (EC4) method, which includes the strengths of UHPC and confinement of steel tube, was used to formulate another column interaction curve. The results show that the Canadian code severely underestimates the design strength of confined UHPC while the EC4 provides much more accurate results.

A novel analysis-oriented theoretical model for steel tube confined ultra-high performance concrete

2021 ◽  
Vol 264 ◽  
pp. 113713
Author(s):  
Qiuru Lu ◽  
Lihua Xu ◽  
Yin Chi ◽  
Fangqian Deng ◽  
Min Yu ◽  
...  
Keyword(s):  
Theoretical Model ◽  
High Performance ◽  
High Performance Concrete ◽  
Steel Tube ◽  
Ultra High Performance Concrete

scholarly journals Structural behaviour of reinforced high performance concrete frames subjected to monotonic lateral loading.

2021 ◽  
Author(s):  
Ali Ehsani Yeganeh
Keyword(s):  
High Performance ◽  
Failure Modes ◽  
Shear Failure ◽  
High Performance Concrete ◽  
Lateral Loading ◽  
Concrete Frames ◽  
Structural Behaviour ◽  
Crack Control ◽  
The Matrix ◽  
Energy Absorbing

This thesis describes the structural performance of reinforced one storey flexural and shear-critical frames made of high performance concretes (HPCs) such as: self-consolidating concrete (SCC), engineered cementitious composite (ECC) and ultra-high performance concrete (UHPC) subjected to monotonic lateral loading. The performance of SCC/ECC/UHPC frames are described based on load-deformation/moment-rotation responses, stiffness, strain developments, crack characterization, failure modes, ductility and energy absorbing capacity. The experimentally obtained moment and shear capacities of the frames are compared with those obtained from Codes and other existing design specifications. Overall, ECC frames showed better performance in terms of higher energy absorbing capacity and ductility compared to SCC/UHPC frames. ECC/UHPC frames showed higher load carrying capacity compared to SCC frames. ECC and UHPC shear-critical frames without shear reinforcement were able to prevent shear failure due to fiber bridging and crack control characteristics contributing to the enhanced shear resistance of the matrix.

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