Eurocode structural fire design of Brazilian masonry buildings

2021 ◽  
Author(s):  
Andreia Romero Fanton ◽  
Camila de Queiroz Moreira ◽  
Rangel Costa Lage ◽  
Carla Neves Costa ◽  
Luiz Carlos de Almeida ◽  
...  
Keyword(s):  
National Standard ◽  
Masonry Building ◽  
Masonry Buildings ◽  
Safety Regulation ◽  
Calculation Methods ◽  
Tabular Data ◽  
Minimum Thickness ◽  
Structural Fire ◽  
Simplified Calculation ◽  
Fire Design

<p>This paper presents a structural fire design of a loadbearing external wall from a Brazilian 3-storey structural masonry building based on Eurocode EN 1996-1-2, through an adaptation of tabular data and simplified calculation methods for buildings designed according to Brazilian standards for the ultimate and serviceability states. The building fire safety regulation of the State of São Paulo instructs the use of Eurocodes in the absence of a specific national standard for structural fire design. EN 1996-1-2 procedures are applied to provide information to Brazilian standardization, comparing results for concrete and clay units. The observed limitations in these adaptations of design methods may not be uncommon to other EU countries. Finally, for a 60-minute TRRF (Brazilian requirement), the building required a minimum thickness (Eurocode requirement) of 100/140mm for concrete units and 90/100mm for clay units.</p>

Evaluation of simplified calculation methods for structural fire design

1994 ◽  
Vol 22 (3) ◽  
pp. 249-304 ◽  
Author(s):  
Dietmar Hosser ◽  
Thomas Dorn ◽  
Ekkehard Richter
Keyword(s):  
Calculation Methods ◽  
Structural Fire ◽  
Simplified Calculation ◽  
Fire Design

scholarly journals Fragility curves for Italian URM buildings based on a hybrid method

2021 ◽  
Author(s):  
A. Sandoli ◽  
G. P. Lignola ◽  
B. Calderoni ◽  
A. Prota
Keyword(s):  
Seismic Vulnerability ◽  
Fragility Curves ◽  
Limit State ◽  
Ultimate Limit State ◽  
Masonry Building ◽  
Masonry Buildings ◽  
Seismic Behaviour ◽  
Building Stock ◽  
Ground Acceleration ◽  
Damage Scenario

AbstractA hybrid seismic fragility model for territorial-scale seismic vulnerability assessment of masonry buildings is developed and presented in this paper. The method combines expert-judgment and mechanical approaches to derive typological fragility curves for Italian residential masonry building stock. The first classifies Italian masonry buildings in five different typological classes as function of age of construction, structural typology, and seismic behaviour and damaging of buildings observed following the most severe earthquakes occurred in Italy. The second, based on numerical analyses results conducted on building prototypes, provides all the parameters necessary for developing fragility functions. Peak-Ground Acceleration (PGA) at Ultimate Limit State attainable by each building’s class has been chosen as an Intensity Measure to represent fragility curves: three types of curve have been developed, each referred to mean, maximum and minimum value of PGAs defined for each building class. To represent the expected damage scenario for increasing earthquake intensities, a correlation between PGAs and Mercalli-Cancani-Sieber macroseismic intensity scale has been used and the corresponding fragility curves developed. Results show that the proposed building’s classes are representative of the Italian masonry building stock and that fragility curves are effective for predicting both seismic vulnerability and expected damage scenarios for seismic-prone areas. Finally, the fragility curves have been compared with empirical curves obtained through a macroseismic approach on Italian masonry buildings available in literature, underlining the differences between the methods.

Investigation and Analysis on Seismic Damage of Masonry Buildings Subjected to Wenchuan Ms=8.0 Earthquake

2010 ◽  
Vol 452-453 ◽  
pp. 105-108 ◽  
Author(s):  
Hong Fu Chen ◽  
Bai Tao Sun
Keyword(s):  
Seismic Design ◽  
Concrete Slab ◽  
Seismic Damage ◽  
Impact Factors ◽  
Economic Losses ◽  
Masonry Building ◽  
Masonry Buildings ◽  
Seismic Design Code ◽  
The Impact ◽  
Wenchuan Ms 8.0 Earthquake

During Wenchuan Ms 8.0 earthquake, masonry buildings have suffered severely damaged and collapsed, causing heavy casualties and huge economic losses. In this paper, based on seismic site survey data, some new phenomena and characteristics of earthquake damage in comparison with the 1976 Tangshan earthquake, such as seismic damage of large space buildings, inclined or “X” shaped crack in wall between windows or spandrel wall, stair damage, falling of precast reinforced concrete slab and horizontal crack at the bottom of structure, are discussed in detail. Then, the impact factors of seismic capacity of masonry building in Wenchuan earthquake, including construction age, seismic fortification, bay size, floor (roof) form, layer number, thickness of bearing wall are analyzed, respectively; Finally, some recommendations on seismic design and reconstruction of masonry structure by the seismic design code are proposed.

scholarly journals COMPARISON OF THREE CALCULATION METHODS OF ENERGY PERFORMANCE CERTIFICATES IN SLOVENIA

2018 ◽  
Vol 13 (1) ◽  
Author(s):  
Wadie Kidess
Keyword(s):  
Numerical Calculation ◽  
Energy Performance ◽  
Heat Losses ◽  
Calculation Methods ◽  
The Third ◽  
Simplified Method ◽  
Calculation Results ◽  
Thermal Bridges ◽  
Simplified Calculation ◽  
Family House

In order to get the authorization for issuing energy performance certificates in Slovenia, the expert candidate has to attend the prescribed course and pass the exam. The simplified method for heat losses calculation that is taught at this course neglects the thermal bridges, raising concerns whether the calculation results are reliable. In this paper we have compared three methods for calculation of thermal losses for a “typical” family house. The first is the above mentioned simplified calculation using a correctional factor; the second takes into account the thermal bridges, using linear thermal transmittances obtained by numerical calculation, and the third takes into account the thermal bridges, using default values for linear thermal transmittances. Noting that the second method returns the most exact values, we have found that the first method results are too large, yet still smaller than the third method results.

The Whittier Narrows, California Earthquake of October 1, 1987—Masonry Building Performance Survey

1988 ◽  
Vol 4 (1) ◽  
pp. 181-196 ◽  
Author(s):  
G. C. Hart ◽  
J. Kariotis ◽  
J. L. Noland
Keyword(s):  
Earthquake Response ◽  
Building Performance ◽  
Masonry Building ◽  
Masonry Buildings ◽  
Reinforced Masonry ◽  
Survey Results

The observed earthquake response of unreinforced and reinforced masonry buildings during the October 1 and 4, 1987 Whittier Narrows Earthquakes was documented in a comprehensive building survey. This paper describes the extent of the survey, the type of data collected and a preliminary summary of some survey results.

Material properties of clay and lime plaster for structural fire design

2019 ◽  
Author(s):  
Liblik Johanna ◽  
Küppers Judith ◽  
Just Alar ◽  
Maaten Birgit ◽  
Pajusaar Siim
Keyword(s):  
Material Properties ◽  
Structural Fire ◽  
Lime Plaster ◽  
Fire Design
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