scholarly journals Orange Grove Library- Prescriptive and Performance-Based Fire and Life Safety Evaluation

2016 ◽  
Author(s):  
David A. Boackle
Keyword(s):  
Safety Evaluation ◽  
Life Safety ◽  
Orange Grove ◽  
And Performance

scholarly journals Stress and Deformation Analysis of Buried Gas Pipelines Subjected to Buoyancy in Liquefaction Zones

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2334 ◽  
Author(s):  
Mengying Xia ◽  
Hong Zhang
Keyword(s):  
Analytical Model ◽  
Safety Evaluation ◽  
Element Model ◽  
Deformation Analysis ◽  
Strength Analysis ◽  
Gas Pipelines ◽  
Long Distance ◽  
Axial Forces ◽  
And Performance ◽  
Buried Gas Pipeline

Buried pipelines are the main means of long distance transportation of natural gas. These pipelines are in high risk crossing liquefaction areas due to large deformations and stresses that may exist in pipe induced by the buoyancy load. In this study, a systematic analytical and numerical analysis were performed to investigate the mechanical behavior of a buried gas pipeline subjected to buoyancy in liquefaction areas. Soil constraints on pipe were considered accurately in the proposed models through soil spring assumptions. Effects of axial forces on pipe’s bending deformation were also considered via the governing equations for beam under bending and tension. Deformation compatibility condition was utilized to derive the axial forces in pipe. The accuracy of the proposed analytical model was validated by comparing its results with those derived by an established rigorous finite element model. In addition, parametric analysis was finally performed using the analytical model to study the influences of pipe diameter, pipe wall thickness, soil spring stiffness and width of liquefaction zone on pipe’s mechanical responses. This study can be referenced in the strength analysis and performance based safety evaluation of buried gas pipelines crossing liquefaction areas.

scholarly journals Seismic Capacity Assessment of Existing RC Building by Using Pushover Analysis

2018 ◽  
Vol 4 (9) ◽  
pp. 2034 ◽  
Author(s):  
Mohammed Ismaeil
Keyword(s):  
Control Method ◽  
Demand Curve ◽  
Pushover Analysis ◽  
Life Safety ◽  
Base Shear ◽  
Seismic Capacity ◽  
Safety Level ◽  
Collapse Prevention ◽  
Performance Point ◽  
And Performance

The infrastructure, existing in Sudan, is mostly not structured or designed to resist seismic forces accordingly. The study investigated the seismic damage of a 5 storey existing reinforced concrete building in Khartoum, Sudan. Three performance levels were considered in the study, which included immediate occupancy, life safety, and collapse prevention. The gravity push was carried out using force control method and lateral push with displacement control, using SAP2000. Pushover analysis produces push curve, consisting of capacity spectrum, demand spectrum, and performance point. It showed the performance level of building components along with maximum base shear carrying capacity. It has been observed that demand curve intersected the capacity curve between the points B and C at the X direction that is life safety level; and between the points B and C at the Y direction that is life safety and collapse prevention level. Therefore, some building elements are needed to be strengthened.

scholarly journals Risk Assessment of a MLCC Plant through Fire and Evacuation Simulations

2021 ◽  
Vol 35 (2) ◽  
pp. 67-73
Author(s):  
Kwang-Tae Son ◽  
Jong-Yeong Son ◽  
Young-Hoon Bae ◽  
Jun-Ho Choi
Keyword(s):  
Risk Factors ◽  
Evaluation Method ◽  
Safety Evaluation ◽  
Performance Standards ◽  
Life Safety ◽  
Clean Room ◽  
Evacuation Simulation ◽  
Evacuation Risk ◽  
Conditioning Equipment ◽  
Fire Accidents

In this paper, fire and evacuation simulations are conducted for the Multi-Layer Ceramic Capacitor (MLCC) factory clean room, and a plan to improve performance standards in the field of performance-based design simulation is suggested. First of all, fire and evacuation risk factors in the clean room were derived through fire accidents and previous research. And fire and evacuation simulations were performed using the derived risk factors as variables. As a result of the simulations, it was found that 'air conditioning equipment', 'working capacity', 'door setting method' and 'life safety evaluation method' have an influence on the life safety evaluation. Finally, a plan to improve the standards for fire and evacuation simulation was suggested to reflect the factors influencing the life safety evaluation.

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