scholarly journals The performance of timber-framed load-bearing gypsum plasterboard walls subjected to two-sided fire exposure

2021 ◽  
Author(s):  
Hohyung (Frank) Kang ◽  
Anthony Abu ◽  
Peter Moss ◽  
Hans Gerlich ◽  
Richard Hunt
Keyword(s):  
Fire Exposure ◽  
Load Bearing

Modeling the behavior of load bearing concrete walls under fire exposure

2017 ◽  
Vol 154 ◽  
pp. 993-1003 ◽  
Author(s):  
Puneet Kumar ◽  
V.K.R. Kodur
Keyword(s):  
Fire Exposure ◽  
Concrete Walls ◽  
Load Bearing

scholarly journals Fire resistance assessment of RC columns with advanced calculation methods

2021 ◽  
pp. 82-96
Author(s):  
Yevhen Dmytrenko ◽  
Taras Donets ◽  
Kateryna Odnolitok ◽  
Oleg Fesenko
Keyword(s):  
Heat Transfer ◽  
Reinforced Concrete ◽  
Convective Heat Transfer ◽  
Cross Section ◽  
Convective Heat ◽  
Fire Resistance ◽  
Concrete Columns ◽  
Fire Exposure ◽  
Calculation Methods ◽  
Load Bearing

This paper contains the results of fire resistance calculation of reinforced concrete columns with advanced calculation methods. For columns that are tested unloaded, determine the cross-sectional temperature distribution and values of temperature in reinforcement. The fire resistance of columns that have been tested without load is determined according to temperature measurements, with calculation methods according to the requirements of DBN B.1.1-7 andDBN B.1.2-7. According to the tabulated method, the fire resistance of reinforced concrete columns is determined by geometric parameters such as cross-section width, axis distance of the reinforcement, amount of reinforcement, length or height of the element, load level during the fire exposure, heating conditions during the fire exposure (number of fire exposed sides). Accidental combination of actions during the fire situation consists of characteristic values of permanent and variable long-term actions taking into account the safety factor  for the consequence class of the object (CC2) and the type of design situation (accidental). Thermal analysis of the column was performed under conditions of the standard fire exposure. In such conditions it was assumed that the column is exposed to fire with four sides for 120 minutes that corresponds to the required fire resistance class R120. The thermal state of the column was determined using transient thermal models that take into account radiation-convective heat transfer in the ambient from the heat source to the structural surface, convective heat transfer in the structure, radiation-convective heat exchange from the structure to the ambient environment. The residual load-bearing capacity of the reinforced concrete column after the fire exposure was calculated with the reduced cross-section determined using zone method in accordance with the requirements of DSTU-N B B.2.6-197 and DSTU-N B EN 1992-1-2. The fire resistance period of columns for the load-bearing criterion was determined on the basis of the results of of thermal and static analysis.

scholarly journals Fire and post-fire performance of circular steel tube confined reinforced concrete columns

2018 ◽  
Author(s):  
Faqi Liu ◽  
Hua Yang ◽  
Sumei Zhang
Keyword(s):  
Reinforced Concrete ◽  
Fire Resistance ◽  
Concrete Columns ◽  
Steel Tube ◽  
Fe Model ◽  
Fire Exposure ◽  
Test Results ◽  
Reinforced Concrete Columns ◽  
Load Bearing ◽  
Circular Steel Tube

Fire and post-fire behaviours of reinforced concrete columns confined by circular steel tubes, also known as circular steel tube confined reinforced concrete (STCRC) columns, are investigated in this paper. 5 full-scale specimens exposed to fire and 47 specimens after fire exposure were tested. Temperatures across the sections, displacement versus time curves, fire resistance, load versus displacement responses and load-bearing capacities were measured and discussed. A finite element (FE) model was developed using the program ABAQUS, and validated against the test results from the present study. Simplified design methods were proposed for predicting the fire resistance and residual load-bearing capacity of the STCRC columns under and after fire exposure, respectively.

Load-Bearing in the Ovine Medial Tibial Condyle: Effect of Meniscectomy

1993 ◽  
Vol 06 (02) ◽  
pp. 100-104 ◽  
Author(s):  
D. M. Pickles ◽  
C. R. Bellenger
Keyword(s):  
Knee Joint ◽  
Contact Area ◽  
Mammalian Species ◽  
Total Removal ◽  
Load Bearing ◽  
Human Knee ◽  
Biochemical Effects ◽  
Pressure Sensitive ◽  
Medial Meniscectomy ◽  
Tibial Condyle

SummaryTotal removal of a knee joint meniscus is followed by osteoarthritis in many mammalian species. Altered load-bearing has been observed in the human knee following meniscectomy but less is known about biochemical effects of meniscectomy in other species. Using pressure sensitive paper in sheep knee (stifle) joints it was found that, for comparable loads, the load-bearing area on the medial tibial condyle was significantly reduced following medial meniscectomy. Also, for loads of between 50 N and 500 N applied to the whole joint, the slope of the regression of contact area against load was much smaller. Following medial meniscectomy, the ability to increase contact area as load increased was markedly reduced.The load bearing area on the medial tibial condyle was reduced following meniscectomy.

Effect of long-term loading on timber load-bearing elements

2015 ◽  
Vol 10 (2) ◽  
pp. 25-34
Author(s):  
Kristian Sogel
Keyword(s):  
Load Bearing

PARTICULAR QUALITIES OF CONSTRUCTION AND TECHNICAL EXPERTISE OF STRUCTURES AGRICULTURAL WAREHOUSE OF MINERAL FERTILIZERS

2020 ◽  
Author(s):  
I.O. Egorochkina ◽  
◽  
I.A. Serebryanaya ◽  
S. A. Jamaldinov ◽  
F.A. Bataeva ◽  
...  
Keyword(s):  
Functional State ◽  
Mineral Fertilizers ◽  
Technical Expertise ◽  
Technical Documentation ◽  
Load Bearing ◽  
Building Load

The article describes the features of construction and technical expertise of structures of agricultural warehouse of mineral fertilizers. A draft program for visual and detailed instrumental inspection of building load-bearing structures has been developed. In accordance with the recommendations of the regulatory and technical documentation, measures have been developed to repair and restore the functional state of damaged structures.

SYNTHESIS OF ELEMENTS OF LOAD-BEARING SYSTEMS WITH A GIVEN LEVEL OF RELIABILITY

2020 ◽  
Author(s):  
Y.P. Manshin ◽  
◽  
E.Yu. Manshina ◽  
Keyword(s):  
Strain Measurement ◽  
Field Strain ◽  
Design Element ◽  
Load Bearing ◽  
Cyclic Bending ◽  
Bending Stresses

The article considers an algorithm for analyzing the results of field strain-measurement studies of machine structures, which allows obtaining data for the modernization of elements in the form of coefficients of parameter changes. As the object of application of the method, the design element of the header was selected, which had failures due to insufficient endurance under cyclic bending stresses.

Load Bearing Structures Made of Glued Laminated Wood and Plywood

2001 ◽  
Vol 85 (5) ◽  
pp. 38-45
Author(s):  
Ari Aalto ◽  
Markku Tuomala
Keyword(s):  
Load Bearing
Sign in / Sign up

Export Citation Format

Share Document