Evaluation of the ASCE 41 Linear Elastic Procedure for Seismic Retrofit of Existing Structures: Pros and Cons of the Method

Author(s):  
Luis A. Toranzo-Dianderas
Author(s):  
Hiroyuki Nakahara ◽  
Yukiko Ashida

The authors have been developing a seismic retrofitting method using concrete-filled steel tubular (CFT) members as a diagonal brace. The features of the method are easy set-up and low-cost because we made the enforcing devices lightweight and a simple connecting method to the existing structures. This method provides many advantages for the buildings located at the places where are difficult to transport heavy materials and equipment. An experimental construction for the seismic retrofit was conducted at the 2-story RC building on an isolated island in Japan. The construction was succeeded by only three persons in two days without heavy equipment. This paper is consisted of the reports of the constructing process and the loading test of the connecting part of the method. The trial construction includes a new detail of the connection. Two specimens were made and tested to estimate the lateral load carrying capacity of the connection.


1994 ◽  
Vol 21 (2) ◽  
pp. 180-185 ◽  
Author(s):  
Robert G. Sexsmith

Recent changes in seismic criteria have resulted in a perceived increase in seismic risk for many existing structures. Difficult seismic retrofit decisions may be required, involving considerations of risk, initial costs, and long-term consequences. This paper illustrates the application of an expected value decision model to seismic retrofit policies. The paper outlines the features of a logical model for choice of safety level, for alternative retrofits to a single structure, and for establishing priorities among a set of retrofit actions for one or a group of structures.Codes and standards constrain the range of possible actions; however, they are not well developed for retrofit of existing structures. It is therefore important to consider investments in safety through retrofits on the basis of present expected values, in a manner similar to insurance purchases. Consideration of the factors involved in such decisions, including seismic risk, cost of retrofit, and consequences of seismic events with and without the retrofit, will lead to improved information and better allocation of scarce retrofit funds. Key words: seismic risk, decision analysis, seismic retrofit.


Author(s):  
Laura S. DeThorne ◽  
Kelly Searsmith

Purpose The purpose of this article is to address some common concerns associated with the neurodiversity paradigm and to offer related implications for service provision to school-age autistic students. In particular, we highlight the need to (a) view first-person autistic perspectives as an integral component of evidence-based practice, (b) use the individualized education plan as a means to actively address environmental contributions to communicative competence, and (c) center intervention around respect for autistic sociality and self-expression. We support these points with cross-disciplinary scholarship and writings from autistic individuals. Conclusions We recognize that school-based speech-language pathologists are bound by institutional constraints, such as eligibility determination and Individualized Education Program processes that are not inherently consistent with the neurodiversity paradigm. Consequently, we offer examples for implementing the neurodiversity paradigm while working within these existing structures. In sum, this article addresses key points of tension related to the neurodiversity paradigm in a way that we hope will directly translate into improved service provision for autistic students. Supplemental Material https://doi.org/10.23641/asha.13345727


2007 ◽  
Vol 41 (12) ◽  
pp. 29
Author(s):  
KERRI WACHTER
Keyword(s):  

Praxis ◽  
2020 ◽  
Vol 109 (14) ◽  
pp. 1141-1149
Author(s):  
Martina Boscolo Berto ◽  
Dominik C. Benz ◽  
Christoph Gräni

Abstract. Coronary artery disease (CAD) is the leading cause of morbidity and mortality in the industrialized countries. Assessment of symptomatic patients with suspected obstructive CAD is a common reason for a clinical visit. Noninvasive anatomical and functional imaging are established tools to rule-in and rule-out CAD, to assess the severity of disease and to determine the potential risk of future cardiovascular events. In this review, we discuss the updated Guidelines from the European Society of Cardiology on Chronic Coronary Syndromes and explore the different imaging modalities used in current clinical practice for the noninvasive assessment of CAD. The pros and cons of each method, especially comparing anatomical and functional testing, are presented. Furthermore we we address the practical clinical aspects in the selection of the optimal noninvasive tests according to clinical need.


Author(s):  
Charles A. Peterson

Abstract. Content analysis is a late and contentious addition to the Rorschach canon. The determinants have ruled. Hermann Rorschach was at best, ambivalent about content analysis, focusing on the perceptual aspects of the process. Rorschachers have been not been conTENT about CONtent. The literature on the pros and cons and the how-to of content analysis is reviewed chronologically, concluding with eight issues and objections that have left Rorschach practitioners malcontent with content. Hoping to help practitioners improve the analysis of Rorschach content, ten suggestions, often with examples, are offered, these “hints” affecting both conceptualization and practice. A case fragment is appended to the review to host the above suggestions and to illustrate the (likely) less frequent “active evocation” of content to further the analysis.


PsycCRITIQUES ◽  
2006 ◽  
Vol 51 (10) ◽  
Author(s):  
Robert T. Hitlan ◽  
M. Catherine DeSoto
Keyword(s):  

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