Establishment of Stiffness Matrix, Mass Matrix of Tapered Beam with I-Shaped Includesemi-Rigid Connection

In the report, the optimal design problem of flat steel frame structure in the deformed state is considered, considering the softness of “the beam-column connection pinned” with “the moments-rotation angle relationship of the connection” is nonlinear, linearized by three straight lines, the material of the structure is elastic – plastic material in ideal state and considering the P-Delta effect. Establish and solve the problem of flat steel frame structure in the form of nonlinear planning and solve the problem thanks to MATLAB 6.0 programming language. Create a specialized program to optimize the steel frame structure, the results illustrate the effect of bonding softness and P-Delta effect on the weight of steel frame structure

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Nonlinear Analysis of Flat Steel Frame Structure With Semi-rigid Connection Under Static Load

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.f8325.088619 ◽

2019 ◽

Vol 8 (6) ◽

pp. 1102-1106

Keyword(s):

Plastic Material ◽

Linear Displacement ◽

Steel Frame ◽

Frame Structure ◽

Vertical Force ◽

Numerical Illustration ◽

Rigid Connection ◽

Flat Steel ◽

Steel Frame Structure ◽

Matlab Programming

The paper aims to analyze the elasticity-plasticity of a flat steel frame structure with a beam-column connection that is a semi-rigid connection; three-spring semi-rigid link models (two linear displacement springs and one rotating displacement spring); It includes hard areas at the beam-column position, with an ideal flexible-plastic material model. Based on that, it developed algorithms by PTHH method using step-by-step applying load method and programmed to determine displacement-internal force when make semi-rigid nonlinear connection in MATLAB programming language; consider the melting conditions of the section, including the influence of moments, vertical force and shear force. Make a numerical illustration with a two stage-one span steel frame

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Dynamic Analyses of Semi-Rigid Connection Low Yield Point Steel Frames

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.351-352.524 ◽

2013 ◽

Vol 351-352 ◽

pp. 524-527

Author(s):

Cui Ling Ma ◽

Song Dan Sun ◽

Xian Lei Cao

Keyword(s):

Steel Frames ◽

Time History ◽

Steel Frame ◽

Frame Structure ◽

History Analysis ◽

Dynamic Analyses ◽

Rigid Connection ◽

Rotation Stiffness ◽

Analytic Models ◽

Steel Frame Structure

Based on the analysis for 10 series (altogether 50) of finite element analytic models, the time-history analysis is discussed in this paper to investigate the relations between frame parameters of semi-rigid steel frames, these parameters include the frame's floor number, the frame's span number, especially the rotation stiffness of beam-to-column connections. Comparing with the steel frame structure, the ductility of semi-rigid steel frame structure is improved with the reduction in the rotation stiffness of connections. Furthermore, semi-rigid steel frame structure under seismic loads has a good seismic performance.

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Analysis on the Seismic Behavior of Extended End-Plate Connections of Steel Frame Structure

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.193-194.1405 ◽

2012 ◽

Vol 193-194 ◽

pp. 1405-1413 ◽

Cited By ~ 1

Author(s):

Zhu Ling Yan ◽

Bao Long Cui ◽

Ke Zhang

Keyword(s):

Finite Element ◽

Cyclic Loading ◽

Seismic Performance ◽

Seismic Behavior ◽

Frame Structure ◽

End Plate ◽

Rigid Connection ◽

Extended End Plate ◽

Plate Connections ◽

Steel Frame Structure

This paper conducts analysis on beam-column extended end-plate semi-rigid connection joint concerning monotonic loading and cyclic loading of finite element through ANSYS program, mainly discussed the influence of parameters such as the form of end plate stiffening rib on anti-seismic performance of joint.

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Experimental Research and Finite Element Analysis on Behavior of Steel Frame with Semi-Rigid Connections

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.168-170.553 ◽

2010 ◽

Vol 168-170 ◽

pp. 553-558

Author(s):

Feng Xia Li ◽

Bu Xin

Keyword(s):

Architectural Design ◽

Plastic Hinge ◽

Steel Frames ◽

Seismic Energy ◽

Internal Force ◽

Steel Frame ◽

Frame Structure ◽

Element Analysis ◽

Rigid Deformation ◽

Steel Frame Structure

Most steel beam-column connections actually show semi-rigid deformation behavior that can contribute substantially to overall displacements of the structure and to the distribution of member forces. Steel frame structure with semi-rigid connections are becoming more and more popular due to their many advantages such as the better satisfaction with the flexible architectural design, low inclusive cost and environmental protect as well. So it is very necessary that studying the behavior of those steel frame under cyclic reversal loading. On the basics of connections experiments the experiment research on the lateral resistance system of steel frame structure has been completed. Two one-second scale, one-bay, two-story steel frames with semi-rigid connections under cyclic reversal loading. The seismic behavior of the steel frames with semi-rigid connections, including the failure pattern, occurrence order of plastic hinge, hysteretic property and energy dissipation, etc, was investigated in this paper. Some conclusions were obtained that by employing top-mounted and two web angles connections, the higher distortion occurred in the frames, and the internal force distributing of beams and columns was changed, and the ductility and the absorbs seismic energy capability of steel frames can be improved effectively.

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Image-based operational modal analysis and damage detection validated in an instrumented small-scale steel frame structure

Mechanical Systems and Signal Processing ◽

10.1016/j.ymssp.2021.108640 ◽

2022 ◽

Vol 168 ◽

pp. 108640

Author(s):

Cecilia Rinaldi ◽

Jacopo Ciambella ◽

Vincenzo Gattulli

Keyword(s):

Damage Detection ◽

Modal Analysis ◽

Steel Frame ◽

Operational Modal Analysis ◽

Frame Structure ◽

Small Scale ◽

Steel Frame Structure

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Linear and non-linear analysis on two-dimensional steel frame under different temperatures

Journal of Structural Fire Engineering ◽

10.1108/jsfe-12-2017-0047 ◽

2019 ◽

Vol 10 (1) ◽

pp. 48-55

Author(s):

Parthasarathi N. ◽

Satyanarayanan K.S. ◽

Prakash M. ◽

Thamilarasu V.

Keyword(s):

High Temperatures ◽

Progressive Collapse ◽

Transient State ◽

Steel Frame ◽

Frame Structure ◽

Two Dimensional ◽

Content Type ◽

Frame Building ◽

Different Temperatures ◽

Steel Frame Structure

Purpose Progressive collapse because of high temperatures arising from an explosion, vehicle impact or fire is an important issue for structural failure in high-rise buildings. Design/methodology/approach The present study, using ABAQUS software for the analysis, investigated the progressive collapse of a two-dimensional, three-bay, four-storey steel frame structure from high-temperature stresses. Findings After structure reaches the temperature results like displacement, stress axial load and shear force are discussed. Research limitations/implications Different temperatures were applied to the columns at different heights of a structure framed with various materials. Progressive collapse load combinations were also applied as per general service administration guidelines. Originality/value This study covered both steady-state and transient-state conditions of a multistorey-frame building subjected to a rise in temperature in the corner columns and intermediate columns. The columns in the framed structure were subjected to high temperatures at different heights, and the resulting displacements, stresses and axial loads were obtained, analysed and discussed.

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