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Showing 1 to 16 of 16 for “"Portal Frame"”.
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Behavior of Portal-Frame Knee Connections Under Static and Dynamic Loading
Made available in DSpace on 2014-12-05T17:37:36Z (GMT). No. of bitstreams: 1 6206230.pdf: 11379163 bytes, checksum: 301534c02d3062d03572c0eea3600dec (MD5) Previous issue date: 1962
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Investigating the Performance of Wood Portal Frames as Alternative Bracing Systems in Light-Frame Wood Buildings
Light-frame shearwall assemblies have been successfully used to resist gravity and lateral loads, such as earthquake and wind, for many decades. However, there is a need for maintaining the structural integrity of such buildings even when large openings in walls are introduced. Wood portal frame …
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Nonlinear vibration of beam and multibeam systems
… subject to a harmonic external excitation and a portal frame subject to a harmonic base motion, are the objects of study. For the cantilever beam, we present experimental results regarding multimode behavior. The beam was tested in both a vertical and horizontal configuration. Our experiments …
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Effect of stressed skin action on the behaviour of cold-formed steel portal frames with non-linear flexible joints and top-hat purlins
A conceptual design of a cold-formed steel (CFS) portal frame system proposed by the industrial partner is to be investigated and improved in light of known design challenges. Unlike previous studies which focused on the behaviour of CFS bare frame, this thesis focuses on the design and analysis …
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A computational study of the behaviour of hot-rolled portal frames in fire
… can confidently design hot-rolled steel portal frame structure if it is kept at ambient temperature. However, as they are not aware of the potential collapse behaviour of such frames in fire, they tend to use heavy foundations with expensive fire protection materials applied to all the …
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Glued-in re-bar connection
… horizontal forces, and knee joints as used in a portal frame, loaded with positive and negative moment. Steel failures were observed consistently. A typical portal frame was designed in order to tie the research to practical applications. Internal forces from this analysis were then used as a …
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A performance analysis of the hi-plan structural apparatus
… two structural models (a continuous beam and a portal frame) were extensively tested under several loading and support configurations. The models were analysed using STRUDL as well as a computer program developed by the author. The comparison of the results (deformations) obtained in the two …
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Simplified design of moment end-plate connections
… widely used in the metal building industry and portal frame construction. This is due to the advantages of the field-bolted construction and excellent performance of moment end-plate connections. These connections have been studied extensively. Yield-line analysis has been used to predict the …
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Finite Element Analysis of the Application of Synthetic Fiber Ropes to Reduce Blast Response of Frames
… lateral loads. Finite element models of portal frames were developed using the commercial finite element program ABAQUS and dynamic models were run for varying blasts and frame systems. Blast pressures of 100, 2,000, and 4,000 psi were applied to a steel portal frame and comparisons were …
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Improved structural, embodied carbon and cost efficiency of single storey industrial buildings using sandwich panels
… members, b) diaphragm action to stiffen the frame and c) frameless buildings. Results suggested that the greatest potential benefit (up to 60% steelwork saving) arises from the use of long span systems, particularly for trussed roof frames with northlight construction. The study identified …
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Efficient single-level solution of hierarchical problems in structural optimization
… was implemented to minimize the volume of a portal frame and a wing box. Computational savings of up to 50 percent have been obtained for medium sized problems. The savings increase as the size of the problem and the amount of decoupling is increased. The procedure is simple to implement. For …
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Displacement-Based Seismic Design of Timber Structures
… to one-storey wooden structures made with a portal system. This typology is very common in Europe and particularly in Italy. A series of analytical expressions have been developed to calculate design parameters. The required analytical Direct-DBD parameters are implemented based on the …
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Stability Sensitivity Of Low-Rise Steel-Moment Framed Buildings To Hazard-Independent Damage
… its system. Stability of low-rise steel-moment framed buildings and their sensitivity to perturbations from significant damage are the focus of this work. Perturbations, or changes from the normal state of the structural system, have the ability to affect the structural response. Second-order …
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On the performance of base-isolated buildings: a generic model
… domain, and consists of a two-dimensional portal-frame model of a building coupled to a three-dimensional boundary-element model of a piled-foundation. Both components of the model achieve computational efficiency by assuming they are infinitely long and using periodic structure theory. The …
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A performance-based design framework for base-isolated buildings against ground-borne vibration
… in terms of the $PFIG$. A new design analysis framework is presented that can be adopted for this purpose with reference to a staged approach, which relates inherently to the topic of dynamic soil-structure-interaction~(SSI). The design analysis framework considers the free-field vibration …