Design of single-angle compression members according to the Canadian standards

1996 ◽  
Vol 23 (3) ◽  
pp. 632-638 ◽  
Author(s):  
Murray C. Temple
Keyword(s):  
United States ◽  
Key Words ◽  
Failure Modes ◽  
The United States ◽  
Building Codes ◽  
Flow Chart ◽  
Structural Elements ◽  
Compression Members ◽  
Principal Axes ◽  
The Many

Although single-angle compression members, attached by one leg, appear to be very simple structural elements, they are amongst the most complex of structural elements to analyze and design. This is due to the end eccentricities and the fact that the principal axes of the angle do not coincide with the axis of the structure. The design of single-angle compression members, according to the Canadian standards, is not as straightforward as might be expected. There are numerous clauses to be considered in two standards. In some cases, all failure modes are not covered explicitly. The Canadian standards are examined and applied to the two generally accepted design approaches used in Canada and the United States. These approaches are (i) to ignore the end eccentricities and to treat the angle as a concentrically loaded member and (ii) to account for the end eccentricities by treating the angle as a beam–column. A flow chart is presented which will guide the designer through the many clauses that have to be considered in the two standards. Some suggestions are made which should help a practicing engineer design single-angle compression members that are attached by one leg. Key words: angles, buckling, building (codes), design.

Considerations for the design of single-angle compression members attached by one leg

1996 ◽  
Vol 23 (1) ◽  
pp. 287-294 ◽  
Author(s):  
Murray C. Temple ◽  
Sherief S. S. Sakla
Keyword(s):  
Key Words ◽  
Design Procedure ◽  
Building Codes ◽  
Experimental Results ◽  
Structural Elements ◽  
Structural Members ◽  
Design Procedures ◽  
Compression Members ◽  
Principal Axes ◽  
Complex Structural

Angles appear to be one of the simplest of structural elements. Connections, bolted or welded, are easy to make. Despite this, angle compression members are among the most complex structural members to analyze and design. This is because of the end eccentricities of the end connections and because the principal axes of a single angle do not coincide with the axis of the frame or truss of which the angle is a part. Some experimental results are compared with the two generally accepted design procedures. These results are discussed, and hopefully this will aid the designer in selecting a design procedure. Key words: angles, buckling, building (codes), design.

Applying the Devil's Works in a Holy Cause: Working-Class Popular Culture and the Salvation Army in the United States, 1879-1900

1997 ◽  
Vol 7 (2) ◽  
pp. 195-223
Author(s):  
Lillian Taiz
Keyword(s):  
United States ◽  
New York ◽  
New York City ◽  
Popular Culture ◽  
York City ◽  
The United States ◽  
Salvation Army ◽  
Public Meeting ◽  
The Many ◽  
Sunday Evening

Forty-eight hours after they landed in New York City in 1880, a small contingent of the Salvation Army held their first public meeting at the infamous Harry Hill's Variety Theater. The enterprising Hill, alerted to the group's arrival from Britain by newspaper reports, contacted their leader, Commissioner George Scott Railton, and offered to pay the group to “do a turn” for “an hour or two on … Sunday evening.” In nineteenth-century New York City, Harry Hill's was one of the best known concert saloons, and reformers considered him “among the disreputable classes” of that city. His saloon, they said, was “nothing more than one of the many gates to hell.”

scholarly journals Challenges in Bridge Health Monitoring: A Review

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4336
Author(s):  
Piervincenzo Rizzo ◽  
Alireza Enshaeian
Keyword(s):  
United States ◽  
Health Monitoring ◽  
Highway Bridges ◽  
The United States ◽  
Anomalous Behavior ◽  
Existing Structures ◽  
Bridge Health Monitoring ◽  
Using Data ◽  
The Many ◽  
Major Factors

Bridge health monitoring is increasingly relevant for the maintenance of existing structures or new structures with innovative concepts that require validation of design predictions. In the United States there are more than 600,000 highway bridges. Nearly half of them (46.4%) are rated as fair while about 1 out of 13 (7.6%) is rated in poor condition. As such, the United States is one of those countries in which bridge health monitoring systems are installed in order to complement conventional periodic nondestructive inspections. This paper reviews the challenges associated with bridge health monitoring related to the detection of specific bridge characteristics that may be indicators of anomalous behavior. The methods used to detect loss of stiffness, time-dependent and temperature-dependent deformations, fatigue, corrosion, and scour are discussed. Owing to the extent of the existing scientific literature, this review focuses on systems installed in U.S. bridges over the last 20 years. These are all major factors that contribute to long-term degradation of bridges. Issues related to wireless sensor drifts are discussed as well. The scope of the paper is to help newcomers, practitioners, and researchers at navigating the many methodologies that have been proposed and developed in order to identify damage using data collected from sensors installed in real structures.

John Leighton Stuart and U.S.-Chinese Communist Rapprochement in 1949: Was There Another “Lost Chance in China”?

1982 ◽  
Vol 89 ◽  
pp. 74-96 ◽  
Author(s):  
Yu-ming Shaw
Keyword(s):  
United States ◽  
Cold War ◽  
The United States ◽  
Mao Zedong ◽  
Working Relationship ◽  
Republic Of China ◽  
The Many ◽  
The One ◽  
June July ◽  
The Cold War

Reverend John Leighton Stuart (1876–1962) served as U.S. ambassador to China from July 1946 until August 1949. In the many discussions of his ambassadorship the one diplomatic mission that has aroused the most speculation and debate was his abortive trip to Beijing, contemplated in June–July 1949, to meet with Mao Zedong and Zhou Enlai. Some students of Sino-American relations have claimed that had this trip been made the misunderstanding and subsequent hostility between the United States and the People's Republic of China in the post-1949 period could have been avoided; therefore, the unmaking of this trip constituted another “lost chance in China” in establishing a working relationship between the two countries. But others have thought that given the realities of the Cold War in 1949 and the internal political constraints existing in each country, no substantial result could have been gained from such a trip. Therefore, the thesis of a “lost chance in China” was more an unfounded speculation than a credible affirmation.

scholarly journals Mandating better buildings: a global review of building codes and prospects for improvement in the United States

2015 ◽  
Vol 5 (2) ◽  
pp. 188-215 ◽  
Author(s):  
Xiaojing Sun ◽  
Marilyn A. Brown ◽  
Matt Cox ◽  
Roderick Jackson
Keyword(s):  
United States ◽  
The United States ◽  
Building Codes

The U.S. Health Delivery System: Inefficient and Unfair to Children

1997 ◽  
Vol 23 (2-3) ◽  
pp. 319-337
Author(s):  
Loretta M. Kopelman ◽  
Michael G. Palumbo
Keyword(s):  
United States ◽  
Health Care ◽  
Universal Access ◽  
The United States ◽  
Industrialized Countries ◽  
Health Care Resources ◽  
Health Delivery ◽  
Hip Replacements ◽  
The Many ◽  
Older Citizens

What proportion of health care resources should go to programs likely to benefit older citizens, such as treatments for Alzheimer’s disease and hip replacements, and what share should be given to programs likely to benefit the young, such as prenatal and neonatal care? What portion should go to rare but severe diseases that plague the few, or to common, easily correctable illnesses that afflict the many? What percentage of funds should go to research, rehabilitation or to intensive care? Many nations have made such hard choices about how to use their limited funds for health care by explicitly setting priorities based on their social commitments. In the United States, however, allocation of health care resources has largely been left to personal choice and market forces. Although the United States spends around 14% of its gross national product (GNP) on health care, the United States and South Africa are the only two industrialized countries that fail to provide citizens with universal access.

End-of-Life Care behind Bars

2002 ◽  
Vol 10 (3) ◽  
pp. 233-241 ◽  
Author(s):  
Phyllis B. Taylor
Keyword(s):  
United States ◽  
End Of Life ◽  
End Of Life Care ◽  
The United States ◽  
Chronic Illnesses ◽  
Direct Result ◽  
Life Care ◽  
Prison Health ◽  
The Many ◽  
Changing Demographics

More people than ever before are being incarcerated in the United States. Many inmates are infected with HIV and hepatitis C. Sentences are increasing in length. Prison health care is now having to cope with the many chronic illnesses associated with an ill and aging population. The growth of end-of-life care programs in corrections in the United States is a direct result of the changing demographics of inmates. This article examines the need for end-of-life care behind bars and discusses selected hospice programs.

scholarly journals Plantando nos campos do inimigo: japoneses no Brasil na Segunda Guerra Mundial

2006 ◽  
Vol 32 (2) ◽  
Author(s):  
Tania Quintaneiro
Keyword(s):  
United States ◽  
World War Ii ◽  
Key Words ◽  
State Department ◽  
The United States ◽  
The State ◽  
World War ◽  
Japanese Immigrants ◽  
Commercial Networks ◽  
Economic Warfare

Durante a Segunda Guerra Mundial, os Estados Unidos valeram-se das Listas Negras para eliminar as redes comerciais e as empresas vinculadas aos países do Eixo que atuavam nas repúblicas americanas. Este artigo analisa a política de guerra econômica aplicada no Brasil, especificamente com relação às cooperativas dos imigrantes japoneses, e a estratégia do governo Vargas para lidar com as pressões exercidas pelas autoridades do Departamento de Estado norte-americano. Abstract During World War II, the United States used the Proclaimed List of Certain Blocked Nationals as an instrument to eliminate the commercial networks and the companies associated to Axis countries operating in the American Republics. This article analyses the policy of economic warfare applied in Brazil, specifically in relation to the cooperatives of Japanese immigrants and the strategy of the Vargas government to deal with the pressures exercised by the State Department. Palavras-chave: Brasil. Imigrantes japoneses. Listas Negras. Key words: Brazil. Japanese immigrants. Proclaimed Lists.

Response to James Lebovic's review of Why Intelligence Fails: Lessons from the Iranian Revolution and the Iraq War

2010 ◽  
Vol 8 (4) ◽  
pp. 1169-1170 ◽  
Author(s):  
Robert Jervis
Keyword(s):  
United States ◽  
Cold War ◽  
Great Britain ◽  
Iraq War ◽  
The United States ◽  
Foreign Policy Analysis ◽  
History Of ◽  
Bright Side ◽  
The Many ◽  
The Cold War

Among the many issues raised by James Lebovic's perceptive review are two that strike me as crucial: the relationships between intelligence and social science and those between intelligence and policymaking. The first itself has two parts, one being how scholars can study intelligence. Both access and methods are difficult. For years, diplomatic historians referred to intelligence as the “hidden dimension” of their subject. Now it is much more open, and Great Britain, generally more secretive than the United States, has just issued the authorized history of MI5 (see Christopher Andrew, Defend the Realm: The Authorized History of MI5, 2009). Since the end of the Cold War, the CIA has released extensive, if incomplete, records, and the bright side (for us) of intelligence failures is that they lead to the release of treasure troves of documents, which can often be supplemented by memoirs and interviews. But even more than in other aspects of foreign policy analysis, we are stuck with evidence that is fragmentary. In this way, we resemble scholars of ancient societies, who forever lament the loss of most of the material they want to study.

Sign in / Sign up

Export Citation Format

Share Document