scholarly journals A Comprehensive Analysis Structure for the Design of Masonry Arches

2021 ◽  
Vol 15 (1) ◽  
pp. 381-397
Author(s):  
Gabriel Stockdale ◽  
Gabriele Milani

Background: Structural masonry framing has the potential to be an advantageous design technique for new constructions. The realization of this potential requires both design modernizations and accessible analysis methodologies. The focus and understanding of masonry frames have been directed towards the management and preservation of cultural heritage. This has resulted in an assessment approach to the analysis and duality of the term “masonry” to describe both a material and a method of construction. Objectives: The objective of this work is to differentiate masonry as a method and masonry as a material and to use this differentiation to present a comprehensive method-based analysis structure for masonry arches that is formulated around the need to control and optimize the system. Methods: This work presents an analysis approach that defines and utilizes kinematic equilibrium to establish determinant systems. This is achieved through the inclusion of a loading variable to a defined mechanical condition of the arch. The solution to the equilibrium equation sets is evaluated for admissibility through the examination of the thrust line and arch geometry. The simplified analysis is formulated into a simple software structure, a first-order assessment strategy, a characterization technique to link experiment and theory, and carried to dynamic modeling. Results: The results of the approach are the foundation and blueprint for a comprehensive, efficient, and adaptable structural analysis platform designed for the structural analysis of masonry frames. Conclusion: The developed analysis approach and supporting applications cover the base requirements for promoting the application of masonry frames for new constructions.

2004 ◽  
Vol 126 (1) ◽  
pp. 215-219 ◽  
Author(s):  
Tarunraj Singh

The focus of this paper is on the design of jerk limited input shapers (time-delay filters). Closed form solutions for the jerk limited time-delay filter for undamped systems is derived followed by the formulation of the problem for damped systems. Since the jerk limited filter involves concatenating an integrator to a time-delay filter, a general filter design technique is proposed where smoothing of the shaped input can be achieved by concatenating transfer functions of first order, harmonic systems, etc.


2018 ◽  
Vol 36 (5) ◽  
pp. 744-761 ◽  
Author(s):  
Christophe Bredillet ◽  
Stephane Tywoniak ◽  
Mahshid Tootoonchy

2020 ◽  
Vol 224 ◽  
pp. 113354
Author(s):  
X.J. Luo ◽  
Lukumon O. Oyedele ◽  
Hakeem A. Owolabi ◽  
Muhammad Bilal ◽  
Anuoluwapo O. Ajayi ◽  
...  

2012 ◽  
Vol 17 (1) ◽  
pp. 71-125 ◽  
Author(s):  
J. Maher ◽  
J. Corrigan ◽  
A. Bentley ◽  
W. Diffey

AbstractThe focus of this paper is the identification, and more importantly, sustainable management, of risks embedded in guarantees attaching to unit linked savings and retirement contracts (as commonly referred to as GMxBs). In developing customer centric guarantees that are not readily transferrable to the capital markets, insurance undertakings require the skills and resources to hedge the guarantees within their own balance sheet (or with a temporary use of packaged solutions such as reinsurance). In taking on the guarantee manufacture task insurers are departing from areas of historic competence and need to develop a comprehensive understanding of all elements of market risk replication. These include both first order market exposures as well as the material second order risks associated with market micro structure. The paper seeks to integrate this comprehensive analysis within a practitioner focused framework and concludes with a senior executive summary of “Seven key considerations in successful guarantee manufacture”.


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