scholarly journals American standard building code requirements for minimum design loads in buildings and other structures

1945 ◽  
Author(s):  
Keyword(s):  
Building Code ◽  
Design Loads ◽  
American Standard

scholarly journals Unbalanced snow distributions for the design of arch-shaped roofs in Canada

1980 ◽  
Vol 7 (4) ◽  
pp. 651-656 ◽  
Author(s):  
D. A. Taylor ◽  
W. R. Schriever
Keyword(s):  
Building Code ◽  
Large Radius ◽  
Design Loads ◽  
Snow Loads

This note examines in some detail the design snow loads on simple arches and curved roofs recommended in the 1977 Commentary on Snow Loads of the National Building Code of Canada. Empirical modifications that give more appropriate unbalanced snow loads for large-radius arches and that will alleviate the problems caused by some overconservative aspects of the 1977 design loads are presented. They have been accepted for inclusion in the 1980 commentary.

Seismic Risk and Design Loads

2006 ◽  
Vol 22 (1) ◽  
pp. 115-128 ◽  
Author(s):  
Praveen K. Malhotra
Keyword(s):  
United States ◽  
Seismic Design ◽  
Seismic Risk ◽  
Western United States ◽  
Building Code ◽  
Design Procedures ◽  
Central United States ◽  
Design Loads

The 2003 International Building Code seismic design procedures do not result in uniform risk throughout the country. A comparison is made between the expected lifetime damage to two identical buildings—one in the western United States and other in the central United States. The seismic design accelerations are the same for these buildings, but the expected lifetime damage is very different. The causes of this difference are discussed in the paper.

Dynamic analysis of an unsymmetrical high rise building

1976 ◽  
Vol 3 (1) ◽  
pp. 107-118
Author(s):  
W. K. Tso ◽  
R. Bergmann
Keyword(s):  
Dynamic Analysis ◽  
Dynamic Modelling ◽  
Time History ◽  
Seismic Loading ◽  
Building Code ◽  
High Rise ◽  
Response Dynamic ◽  
Design Loads ◽  
Time History Response ◽  
Proper Perspective

A complete time history response dynamic analysis is carried out to establish the design seismic loading for the Harbour Centre building in Vancouver. The building has an elevated observation deck and restaurant offset from the centre of the structure. The paper describes the steps and considerations involved in the dynamic analysis such as the dynamic modelling of the structure, the choice of input ground records and the interpretation of the computed results. Whenever possible, the calculated values are compared with the 1975 National Building Code of Canada requirements to provide a proper perspective of the various approaches in establishing design loads for this building.

Span Rating of Solid-Sawn Deck Boards

2021 ◽  
Vol 71 (2) ◽  
pp. 171-176
Author(s):  
Madison A. Broers ◽  
Donald A. Bender
Keyword(s):  
North America ◽  
Dynamic Load ◽  
Building Code ◽  
Standard Committee ◽  
Minimum Requirements ◽  
Design Loads ◽  
Policy Testing ◽  
Technical Basis

Abstract Deck boards are key components in outdoor decks and balconies. The deck board market is shared primarily between solid-sawn and composite products. The focus of this article is solid-sawn wood deck boards, which are manufactured in North America as span-rated products following a policy promulgated by the American Lumber Standard Committee (ALSC). The latest revision of the ALSC span rating policy was approved in November 2020, and this article describes the technical basis for the changes. Distributed and concentrated design loads specified in the policy exceed building code minimum requirements. In addition, dynamic load amplification due to deck occupants is included in the new policy. Testing was performed to characterize the effects of partial fixity at joist supports caused by screw fasteners and was incorporated into the span rating methodology.

scholarly journals Snow loads for the design of cylindrical curved roofs in Canada, 1953–1980

1981 ◽  
Vol 8 (1) ◽  
pp. 63-76 ◽  
Author(s):  
D. A. Taylor
Keyword(s):  
Building Code ◽  
Design Loads ◽  
Snow Loads

Since 1975 recommended design loads on cylindrical curved roofs in the Commentaries on Snow Loads in National Building Code documents have undergone significant changes. This paper presents data and some of the background to the changes, and discusses the problems that have arisen with the recommendations published in the 1977 Commentary. The intent is to make recommended design snow distributions and loads as realistic as possible without undue complication. Further improvements are suggested.

Turbulent wind loading of roofs with parapet configurations

1988 ◽  
Vol 15 (4) ◽  
pp. 570-578 ◽  
Author(s):  
T. Stathopoulos ◽  
A. Baskaran
Keyword(s):  
Experimental Data ◽  
National Standards ◽  
Building Code ◽  
Wind Loading ◽  
Geometrical Parameters ◽  
Code Design ◽  
Turbulent Wind ◽  
Open Country ◽  
Design Loads ◽  
Flat Roofs

This paper reviews the available experimental data regarding the effect of parapet configurations on the wind loading of roofs of buildings of various geometries and under different exposures. Particular reference is given to the recent study carried out by the authors in a boundary layer wind tunnel. This study deals with the effects of wind on a variety of flat roofs with and without parapets when exposed to simulated open country and urban terrains. Geometrical parameters examined include the effect of building height (ranging from 12 to 145 m) and parapet height (0–3 m) on both local and area-averaged roof pressures for a variety of wind directions. Results show that parapets generally reduce the high suctions on roof edges and may slightly increase the suctions on the interior areas of the roof. Roof corner suctions, however, increase significantly for low parapet heights.Additional parapet configurations have been examined to reduce these high local corner suctions. Parapet cuts or slots around corners have proven to be effective in this respect. The effect of one-sided, as opposed to perimetrical, parapet has also been examined. Extensive comparisons of the data and recommendations for the wind load provisions of the National Building Code of Canada (NBCC) and the American National Standards Institute (ANSI) are also made. Key words: building, code, design, loads, pressure, project, roof, wind.

Design recommendations for wind loading on buildings of intermediate height

1989 ◽  
Vol 16 (6) ◽  
pp. 910-916 ◽  
Author(s):  
T. Stathopoulos ◽  
M. Dumitrescu-Brulotte
Keyword(s):  
Tall Buildings ◽  
Building Code ◽  
Wind Loads ◽  
Wind Loading ◽  
Code Design ◽  
Building Models ◽  
Concordia University ◽  
Open Country ◽  
Design Loads ◽  
Wind Pressures

The National Building Code of Canada (NBCC) specifies wind loads for the design of tall (height, H > width, W) and low (H < 10 m, or H < W and H < 20 m) buildings. Since there are no specifications for the design of buildings of intermediate height, the present project has been undertaken to help define wind loads appropriate for the design of such buildings. The experimental study was carried out at the boundary layer wind tunnel of the Centre for Building Studies at Concordia University. The methodology used for this project consisted of testing five square building models (12, 25, 55, 100, and 145 m high) under conditions simulating strong turbulent wind blowing over an open country terrain exposure. Both the lowest and the tallest buildings were tested for validation purposes. Statistics of wind induced pressures were measured at several points and areas on the walls and the roof of all buildings for both normal and oblique wind directions. Experimental data show good agreement with previous studies of buildings of similar height tested under different environmental and proximity conditions. Results for the intermediate height buildings are presented in the paper. Wind pressures are compared with the NBCC specifications for low and tall buildings. Key words: building, code, design, loads, pressure, roof, wall, wind.

Reevaluation of the Design Loads for an Existing Avalanche Protection Gallery - A Probabilistic Approach

2015 ◽  
Vol 105 (49) ◽  
pp. 1-8
Author(s):  
Katharina Fischer ◽  
Matthias Schubert ◽  
Mark Schaer ◽  
Stefan Margreth ◽  
Kristian Schellenberg
Keyword(s):  
Probabilistic Approach ◽  
Design Loads
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