scholarly journals Research Status on Steel-bamboo Composite Structure

2019 ◽  
Vol 275 ◽  
pp. 01018
Author(s):  
Jialiang Zhang ◽  
Keting Tong ◽  
Pei Wu ◽  
Yushun Li
Keyword(s):  
Composite Structures ◽  
High Capacity ◽  
Building Structures ◽  
Composite Section ◽  
Long Time ◽  
Section Design ◽  
New Type ◽  
Cold Formed Steel ◽  
Composite Wall ◽  
Structural Adhesive

This paper presents a new type of lightweight composite structural system using bamboo-based panel and cold-formed thin-walled steel. The bamboo-based panel and cold-formed steel with C-section and U-section or profiled steel sheet can form various steel-bamboo composite members, including composite slab, composite wall, composite beam and composite column, utilizing structural adhesive or adhesive-screw reinforced joins. The paper summarizes the section design, mechanical experiments of the steel-bamboo composite structures based on the application of bamboo-based panel in modern building structures. Research shows that the two materials can form a perfect composite section and the connection systems are very effective in a long time, composite members have high capacity, ideal stability and ductility. The study shows that steel-bamboo composite components have good prospects in building structures of China.

A New-Type Bamboo-Steel Composite Structural Member, Box Section Bamboo-Steel Composite Beams

2011 ◽  
Vol 94-96 ◽  
pp. 490-494
Author(s):  
Bo Lv ◽  
Qi Tie Xie ◽  
Jie Xu ◽  
Tian Yuan Jiang ◽  
Yu Shun Li
Keyword(s):  
Steel Sheet ◽  
Composite Beams ◽  
Structural Member ◽  
Thin Wall ◽  
Building Structures ◽  
Structural Members ◽  
Box Section ◽  
New Type ◽  
Steel Composite ◽  
Structural Adhesive

Bamboo-steel composite structure contains all kinds of composite structural members, widen the applied range of bamboo and implement the diversification of component materials and forms in building structures. The paper presents a new-type box section bamboo-steel composite beams on the basis of I-section bamboo-steel composite beams, which take cold-formed thin-wall steel as the backbone, pastes bamboo plywood outer surface of steel sheet with structural adhesive, combines into box section bamboo-steel composite beams.

Behaviour of Axially Loaded Composite Wall Panel by Using Finite Element Analysis

2015 ◽  
Vol 815 ◽  
pp. 49-53
Author(s):  
Nur Fitriah Isa ◽  
Mohd Zulham Affandi Mohd Zahid ◽  
Liyana Ahmad Sofri ◽  
Norrazman Zaiha Zainol ◽  
Muhammad Azizi Azizan ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Composite Structures ◽  
Element Analysis ◽  
Steel Sheets ◽  
Linear Behavior ◽  
Non Linear ◽  
Composite Wall ◽  
Experimental Values ◽  
Civil Engineering Infrastructure

In order to promote the efficient use of composite materials in civil engineering infrastructure, effort is being directed at the development of design criteria for composite structures. Insofar as design with regard to behavior is concerned, it is well known that a key step is to investigate the influence of geometric differences on the non-linear behavior of the panels. One possible approach is to use the validated numerical model based on the non-linear finite element analysis (FEA). The validation of the composite panel’s element using Trim-deck and Span-deck steel sheets under axial load shows that the present results have very good agreement with experimental references. The developed finite element (FE) models are found to reasonably simulate load-displacement response, stress condition, giving percentage of differences below than 15% compared to the experimental values. Trim-deck design provides better axial resistance than Span-deck. More concrete in between due to larger area of contact is the factor that contributes to its resistance.

Stress-release design for high-capacity and long-time lifespan aqueous zinc-ion batteries

2021 ◽  
pp. 100799
Author(s):  
Hao Luo ◽  
Bo Wang ◽  
Jiahuang Jian ◽  
Fangdong Wu ◽  
Li Peng ◽  
...  
Keyword(s):  
High Capacity ◽  
Zinc Ion ◽  
Stress Release ◽  
Long Time

DEFINITION OF THE ELITE QUALITY INDEX AS A NEW TYPE OF THE SOCIAL RESEARCH

2021 ◽  
Vol 4 ◽  
pp. 5-10
Author(s):  
S. FURS ◽  
◽  
A. FEDOSEEV ◽  
Keyword(s):  
Interdisciplinary Research ◽  
Quality Index ◽  
Social Research ◽  
International Study ◽  
Sharp Change ◽  
The Social ◽  
Distribution Of Resources ◽  
Long Time ◽  
New Type ◽  
Definition Of

The article is devoted to the consideration of such an object of interdisciplinary research as the elite, namely, the latest trends in its study. It is shown that the consideration of this phenomenon has been going on for a long time, but now there is a sharp change in the focus of research – a new methodology is being developed. This is due to the fact that the axiom taken is the provision of a significant influence of the elite not only on the distribution of resources (economic, political, administrative) but also on the development (or recession) of the nation as a whole. The article presents a detailed analysis of the methodology for measuring the elite quality index which formed the basis for an international study conducted in 2020.

Lateral Force Resisting Systems Made of Cold-Formed Steel Material: Proposal of Seismic Design Criteria for 2nd Generation of Eurocode 8

2021 ◽  
Vol 885 ◽  
pp. 127-132
Author(s):  
Sarmad Shakeel ◽  
Alessia Campiche
Keyword(s):  
Seismic Design ◽  
Shear Walls ◽  
Lateral Force ◽  
Background Information ◽  
Design Criteria ◽  
Eurocode 8 ◽  
Building Structures ◽  
Design Standards ◽  
Design Strength ◽  
Cold Formed Steel

The current edition of Eurocode 8 does not cover the design of the Cold-Formed steel (CFS) building structures under the seismic design condition. As part of the revision process of Euro-code 8 to reflect the outcomes of extensive research carried out in the past decade, University of Naples “Federico II” is involved in the validation of existing seismic design criteria and development of new rules for the design of CFS systems. In particular, different types of Lateral Force Resisting System (LFRS) are analyzed that can be listed in the second generation of Eurocode 8. The investigated LFRS’s include CFS strap braced walls and CFS shear walls with steel sheets, wood, or gypsum sheathing. This paper provides the background information on the research works and the reference design standards, already being used in some parts of the world, which formed the basis of design criteria for these LFRS systems. The design criteria for the LFRS-s common to CFS buildings would include rules necessary for ensuring the dissipative behavior, appropriate values of the behavior factor, guidelines to predict the design strength, geometrical and mechanical limitations.

scholarly journals Research on Design of Management System for Power Source Equalizing Charge based on FPGA control

2016 ◽  
Vol 12 (02) ◽  
pp. 20
Author(s):  
Haifeng Lin ◽  
Ruili Mao
Keyword(s):  
High Power ◽  
High Capacity ◽  
Power Source ◽  
Super Capacitor ◽  
Power Requirement ◽  
Design Scheme ◽  
Charging Mode ◽  
New Type ◽  
Mixed Power ◽  
Peak Value

The accumulator can store the energy in high capacity, and the super capacitor can charge and discharge in high power. The mixed power source composed by the accumulator and super capacitor not only has the characteristics for both of them but also meets the high-power requirement of high capacity and peak value. How to perform the equalizing charging for multiple power packs is a emphasis in the industry currently. On the basis of analysis for multiple equalizing charging methods, a new type of design scheme based on DC/DC and switch matrix is raised in this project, the thinking of intermittent charging mode is adopted and four BCAP0350 is served as the charging sample to perform the charging and discharging experiment as well as verify the composite charging design scheme is provided with the feasibility.

scholarly journals ANALYSIS OF THE TIME‐DEPENDENT BEHAVIOUR OF COMPOSITE CROSS‐SECTIONS BY LAPLACE‐TRANSFORM

2005 ◽  
Vol 11 (3) ◽  
pp. 203-209
Author(s):  
Erich Raue ◽  
Thorsten Heidolf
Keyword(s):  
Laplace Transform ◽  
Cross Sections ◽  
Composite Structures ◽  
Time Dependent ◽  
Time Interval ◽  
Final State ◽  
Long Time ◽  
Time Dependent Behaviour ◽  
Linear Differential ◽  
Dependent Behaviour

Composite structures consisting of precast and cast in‐situ concrete elements are increasingly common. These combinations demand a mechanical model which takes into account the time‐dependent behaviour and analysis of the different ages of the connected concrete components. The effect of creep and shrinkage of the different concrete components can be of relevance for the state of serviceability, as well as for the final state. The long‐time behaviour of concrete can be described by the rate‐of‐creep method, combined with a discretisation of time. The internal forces are described for each time interval using a system of linear differential equations, which can be solved by Laplace‐transform.

scholarly journals Adsorption and Recovery using Vaporization of Liquid Fluorocarbon Precursor

2020 ◽  
Vol 58 (6) ◽  
pp. 397-402
Author(s):  
Junyoung Park ◽  
Byoungmoon Oh ◽  
Kyongnam Kim
Keyword(s):  
Semiconductor Device ◽  
High Capacity ◽  
Etching Process ◽  
Temperature Plasma ◽  
Ion Energy ◽  
Ion Energy Distribution ◽  
Recovery Processes ◽  
Layer Structures ◽  
Device Structures ◽  
Long Time

PFC gas is primarily used during the etching process in the manufacture of ULSIs and in cleaning after CVD processes. PFC is classified as a greenhouse gas that stays in the atmosphere for a long time and has a high GWP. High capacity and high integration have been achieved in recent years as semiconductor device structures have been replaced by vertical layer structures, and the consumption of PFC gas has exploded due to the increase in high aspect ratio and patterning processes. Therefore, many researchers have been working on methods to decompose, recover, and reuse the gas after the etching process to reduce the emissions of PFC gas. In this study, etching and recovery processes were performed using C5F8 in L-FC which is in liquid phase at room temperature. Among the L-FCs, C5F8 gas has a high C/F ratio, similar to that of the C4F8 gas, which is a conventional PFC gas. In addition, to confirm its reusability, the recovered C5F8 was injected back into the chamber, and the electron temperature, plasma density, and ion energy distribution were analyzed. Based on these experimental data, the reliability of the etch processes performed with recovered C5F8 gas was evaluated, and the possibility of reusing the recovered C5F8 gas was confirmed.

scholarly journals Broadening the pore size of coal-based activated carbonviaa washing-free chem-physical activation method for high-capacity dye adsorption

RSC Advances ◽  
2018 ◽  
Vol 8 (26) ◽  
pp. 14488-14499 ◽  
Author(s):  
Longxin Li ◽  
Fei Sun ◽  
Jihui Gao ◽  
Lijie Wang ◽  
Xinxin Pi ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Pore Size Distribution ◽  
Pore Size ◽  
High Capacity ◽  
Dye Adsorption ◽  
High Rate ◽  
Physical Activation ◽  
Size Distributions ◽  
Pore Size Distributions ◽  
New Type

Aiming to overcome the limitations of the narrow pore size distributions of traditional activated carbon, we demonstrate a new type of activated carbon with a broadened pore size distribution for high-rate and high-capacity aqueous dye adsorption.

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