Optimal design on the web stiffening and lip angle of cold-formed channel steel members

In order to reduce the increasing energy consumption for the domestic demands of existing single-family housing and take advantage of frequent building enlargements, this paper presents a methodology and supporting software tool for determining the optimal design configuration of an attic with integrated solar collectors. The analysis procedure is based on parametric modeling, energy simulation and the use of evolutionary algorithms for finding optimal designs. It has been implemented as a Web-platform for public use that provides users with a proposal of an attic shape with maximum solar energy collection, maximum living space and minimum construction envelope for each house according its size and orientation. The attic integrates PV, thermal and hybrid solar panels on one side of the roof. This paper describes the methodology and software design, assessment of the Web-platform usage and case-studies to verify its behavior. In a matter of minutes, the Web-platform enables users to select a specific attic design for each house that has integrated solar collectors that can produce energy to cover almost 100% of domestic energy consumption. The attics designed provide a nearly 30% increase in living space through the extension of one to four rooms, and the construction cost of the envelope is similar to that of a standard housing extension.

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Influence of the Ribs Parallel to Web on Warping and Load-Bearing Capacity of a Steel I-Beam

Civil and Environmental Engineering Reports ◽

10.2478/ceer-2019-0050 ◽

2019 ◽

Vol 29 (4) ◽

pp. 141-148 ◽

Cited By ~ 1

Author(s):

Krzysztof Wierzbicki ◽

Maciej Szumigała

Keyword(s):

Bearing Capacity ◽

Cross Sections ◽

Steel Plates ◽

Steel Beam ◽

Load Bearing Capacity ◽

Load Bearing ◽

Plane Parallel ◽

Steel Members ◽

Plane Bending ◽

The Web

Abstract The article analyses the method of enhancing a steel beam by adding additional steel members like ribs. They are rigidly connected with both flanges in a plane parallel to the web. That plates reduces warping during in-plane bending of steel beam under lateral-torsional bucking. Different thicknesses of steel plates used as ribs and different cross-sections were taken into account. Calculations were conducted using FEM and ABAQUS CAE environment. The outcomes were compared with ones from previous studies which concerned an influence of endplates on load-bearing capacity of an I-beam.

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Cold Formed Steel Channel Sections with Flange Stiffeners

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.a4590.119119 ◽

2019 ◽

Vol 9 (1) ◽

pp. 2458-2463

Keyword(s):

Ultimate Load ◽

Weight Ratio ◽

High Strength ◽

Thickness Ratio ◽

Load Carrying Capacity ◽

Simply Supported ◽

Steel Members ◽

Load Carrying ◽

Cold Formed Steel ◽

Formed Channel

In recent years the utilization of cold formed steel has been redoubled. This is because high strength to weight ratio of the cold formed steel. The thicknesses cold formed steel members usually range from 0.3 mm to 6.35 mm. The most used cold formed sections are C and Z sections. These sections can be used as secondary beams (purlins) for roof covering, side girts, decks, and panels. Scope of this present study is to investigate the effect on load carrying capacity of cold formed channel sections provided with flange stiffeners. In this project, eighteen numbers of channel sections were analysed by keeping the height to thickness ratio (h/t) as constant and by varying flange width to thickness ratio (b/t) using Ansys 14.0. The h/t ratio and b/t ratio considered are 50 and 25, 35, 45 respectively. The thickness and span of all specimens were kept as 2 mm and 1500 mm respectively. Simply supported boundary condition and two points loading was adopted for both the numerical and experimental analysis. Three numbers of channel sections were fabricated and tested experimentally to check the consistency of results with numerical analysis. The ultimate load and deformed shape of three specimens were obtained from experimental results are compared with the analytical results acquired from Ansys 14.0

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Optimal design of cold-formed tubular steel-members

10.1201/9780203735015-58 ◽

2021 ◽

pp. 399-404

Author(s):

C. Ebenau ◽

J. Menkenhagen ◽

G. Thierauf

Keyword(s):

Optimal Design ◽

Steel Members

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I need to publish more and read less! How new platforms will enable you to publish more effectively while reducing information overload

Septentrio Conference Series ◽

10.7557/5.3024 ◽

2014 ◽

Author(s):

Cameron Neylon

Keyword(s):

Optimal Design ◽

Information Overload ◽

Critical Levels ◽

Journal Publication ◽

Scarce Resources ◽

The Web ◽

The Way

The pressure on researchers to generate publications is increasing and the competition for increasingly scarce resources is bringing this pressure to critical levels. At the same time the web creates new opportunities to communicate, both to other researchers through sharing of things beyond the traditional journal publication, and to the wider community through lower costs of distribution. This is both a benefit, bringing opportunities for new forms of publication and reducing the costs of sharing research outputs like data, software, and research records, and also a burden, as it brings new expectations of the availability of information. The result of these pressures is an explosion of information which challenges our ability to cope. Looking ahead, how can we shape the way that we communicate, and the way that we discover information? What is the optimal design for a system that communicates research effectively and efficiently while allowing researchers to focus on their research?

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