Railway applications. Line categories for managing the interface between load limits of vehicles and infrastructure

2016 ◽  
Keyword(s):  
Load Limits

scholarly journals Determining sloped-load limits inside von Mises truss with elastic support

2018 ◽  
Vol 52 (2) ◽  
pp. 105-109
Author(s):  
S. Bilyk ◽  
V. Tonkacheiev
Keyword(s):  
Elastic Support ◽  
Von Mises ◽  
Load Limits

Implications of the Proposed Revisions in a Draft of the Revised NIOSH Lifting Guide (1991) for Job Redesign: A Field Study

1992 ◽  
Vol 36 (10) ◽  
pp. 659-663 ◽  
Author(s):  
Waldemar Karwowski ◽  
Nina Brokaw
Keyword(s):  
Field Study ◽  
Industrial Site ◽  
Research Project ◽  
Manual Lifting ◽  
Job Redesign ◽  
Load Limits

The main objective of this research project was to compare the recommended load limits for lifting tasks derived based on the NIOSH (1981) Lifting Guide and the proposed NIOSH Draft Revisions of (1991). The study involved the following steps: 1) Identification of a total of 15 manual lifting tasks from 8 different jobs performed at the industrial site, with different tasks characteristics in order to cover most of the possible lifting conditions considered under the Draft Revisions to the NIOSH Guide (1991), 2) Description of the lifting tasks variables for the identified jobs, 3) Calculation of the RWL values for the identified jobs per 1991 Lifting Guide, as well as the AL and MPL values according the 1981 Lifting Guide, 4) Comparison of the actual loads lifted (L) with the values of RWL, AL and MPL, and calculation. The results showed that the Draft Guide of 1991 was much more restrictive with respect to defining the lifting acceptable jobs. Under this Guide, 10 out of 15 tasks analyzed in this study (66.7%) were found unacceptable, and required redesigning. For comparison, under the NIOSH (1981) Guide, as many as 8 of 15 (53.3%) of the tasks were found fully acceptable (below the action limit or AL level), while 6 tasks (40%) required application of administrative controls, and only 1 of the 15 tasks analyzed (6.7%) was found unacceptable.

The effect of bending moment direction on tool joints: Working load limits under complex loads

2016 ◽  
Vol 35 ◽  
pp. 532-540 ◽  
Author(s):  
Qinfeng Di ◽  
Haitao Song ◽  
Feng Chen ◽  
He Zhang ◽  
Wenchang Wang ◽  
...  
Keyword(s):  
Bending Moment ◽  
Load Limits

Effects of Variations in Market Gasoline Properties on HCCI Load Limits

2007 ◽  
Author(s):  
John P. Angelos ◽  
Morgan M. Andreae ◽  
William H. Green ◽  
Wai K. Cheng ◽  
Thomas Kenney ◽  
...  
Keyword(s):  
Load Limits

What Criteria Exist for Determining How Much Load Can Be Lifted Safely?

1980 ◽  
Vol 22 (4) ◽  
pp. 475-486 ◽  
Author(s):  
Arun Garg ◽  
M. M. Ayoub
Keyword(s):  
Heart Rate ◽  
Literature Survey ◽  
Maximum Weight ◽  
Lifting Technique ◽  
Psychophysical Studies ◽  
Load Limits

A literature survey on recommendations for the maximum weight of the load and work loads is presented. Three different criteria are reviewed to determine the "safe" weight and permissible work loads that a person can lift. These are biomechanical, psychophysical, and metabolic/heart rate. A comparison of recommended load limits based on each of the three criteria is presented. Maximum weight of the load and work loads based on the three criteria are also compared. The comparison shows that (1) the recommendations based on a given criterion are not in agreement, (2) the maximum permissible weights of the load based on psychophysical studies are lower than those based on biomechanical criteria, and (3) the psychophysical fatigue criteria, as compared to physiological fatigue criteria, will result in greater work loads at higher frequencies of lifting. Load-pace tradeoff and effects of lifting technique and location of load on acceptable work loads are also discussed.

scholarly journals Local Porters in Nepal: Acute Mountain Sickness and Load Weight of Cargo Carrying

2021 ◽  
Vol 3 (1) ◽  
pp. 85-95
Author(s):  
Wendy Hillman
Keyword(s):  
Acute Mountain Sickness ◽  
Business Owners ◽  
Field Site ◽  
Structure Approach ◽  
Government Organizations ◽  
Mountain Sickness ◽  
Depth Interviews ◽  
Load Weight ◽  
Load Limits

Local porters who haul burdens for trekkers are understudied and underappreciated for the labour they do in Nepal. Their susceptibility to Acute Mountain Sickness (AMS) along with the weight of the loads they haul and carry in return for meagres payment, contribute to the difficulties of their very austere and under-resourced employment. They are frequently underpaid for their efforts. Acknowledgement by government organizations and trekking business owners could make their employment more viable by giving them a higher wage in spite of their occupation struggles. Data was gathered from 31 porters completing instruction at a Nepali Porters’ training establishment, based in Kathmandu, Nepal. The research used semi-structured in-depth interviews. Participants participated in a 45-60-minute interview, which was recorded at the field site. All the interviews were documented and then transcribed into English by a bilingual Nepali PhD student. The data was coded using a hierarchical, thematic coding structure approach. Findings showed that porters knew about and had experienced AMS, and that their work of carrying heavy cargoes for trekkers and trekking companies were often not compliant with prescribed kilogram load limits.

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