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Wind Performance of Asphalt Roofing Shingles
Pre-seal and post-seal wind resistance of asphalt roofing shingles is discussed. A test method for evaluating pre-seal wind damage is described. Wind tunnel testing results are presented...

Ballasted Single Ply Design Guide Development
A new roofing concept called ballasted single ply has now captured about 25% of the new and retrofit flat roof market. This concept relies on the use of ballast to provide the wind resistance...

Full-Scale Measurement on Chiba Port Tower
Chiba Port Tower is a tall tower, 125m high, with a rhombus shaped plan. All of the surfaces are covered with half mirror glass. On the top of the tower, a 'Tuned Mass Damper'...

Unsteady Aeroelastic Base Moments on a High-Rise Building
To consider aeroelastic instabilities of prismatic structures in winds, i.e., vortex induced vibrations or galloping oscillations, unsteady aeroelastic forces must be investigated as the...

Vibration-Induced Wind Pressure on Large Span Flat Roof
Vibration-induced wind pressures on a large span flat roof was investigated by a wind tunnel using a uniformly turbulent flow. Measurements of pressures were made on an asymmetrically...

A New Proposal of Design Wind Loads for Beams Supporting Long-Span Roofs
The wind tunnel testings of wind pressures acting on long-span roofs are carried out. Dynamic wind pressures are measured simultaneously at a lot of points on the roofs. The instantaneous...

Field Observation of Aerodynamic Responses of a PC Cable-Stayed Bridge During Its Erection
Recordings were made of the response of a PC cable-stayed bridge during erection and the wind velocity at erection site. These recordings were analyzed to provide estimates of the characteristics...

Wind Resistant Design Manual for Highway Bridges
The new wind resistant design manual for highway bridges has been required recently in Japan. The working group was organized in the Japan Road Association is 1984 to prepare the manual....

Aerodynamic Stability of Long Span Suspension Bridge?Effects of Stiffening Truss Width
This paper presents the effects of truss width upon the aerodynamic stability of the long span suspension bridge with truss girder up to 2000 m. It was found that the truss width had a...

Codification of Wind Effects for a Long Span Suspension Bridge
Construction of the Akashi Kaikyo Bridge, which will cross the Akashi Kaikyo Straits with a shore-to-shore of approximately 4 km, started in spring of 1988. Firstly discussions on the...

Pressure Measuring System for Wind Loads
A project to acquire wind and building surface pressure data in the field is continuing at Texas Tech University. A test building of dimensions 30 ? 45 ? 13 ft (9.1 ? 13.7 ? 4.0 m) and...

Instrumentation of the Shenyang T.V. Tower
The recently-completed Shenyang radio and television tower provides a unique opportunity to obtain comprehensive measurements of the along-span variation and coherence of wind-induced...

Analysis of Glulam Lattice Dome
Glued-laminated timber (glulam) domes have become competitive in the engineering of large-span roof structures. Three-way glulam grid domes, such as the Triax and Varax domes, are particularly...

Inelastic Performance of Single-Story Masonry Shear Walls
Twenty-two story-height reinforced masonry shear walls have been tested to examine the influence of the applied axial stress, and the amount of vertical and horizontal reinforcement on...

Vibration Control Damper Using Sloshing of Water
The objective of this study is to develop a method of reducing wind-induced vibration of long-period structures utilizing sloshing of water in tanks added to the upper part of the structures....

Bond and Dowel Action of a Main Bar in a RC Beam
The bond and dowel action are analytically treated independently on each other in most cases. The bond behavior may be, however, much affected by the dowel action in structural members....

ATC 14: A Methodology for the Seismic Evaluation of Existing Buildings
A new method for evaluating the seismic resistance of existing buildings has been developed based on the historic performance of buildings in past major earthquakes. This methodology identifies...

Comparison of Slitted and Non-Slitted R. C. Shear Walls With Boundary Elements Under Horizontal Forces
This paper compares the differences of aseismic behaviours between slitted and non-slitted shear walls under horizontal forces. There are 5 specimens for slitted shear walls and another...

The New 1988 SEAOC Blue Book and 1988 UBC Overview of Lateral Force Section
This paper presents an overview of the lateral force section of the new seismic design provisions of the 1988 edition of the Uniform Building Code (ICBO, 1988), and the 1988 Blue Book...

Equating Dynamic Analysis to Static Code Provisions
Building codes generally prescribe seismic design provisions that include a static lateral force procedure that can easily be combined with the gravity loads to design the structural elements....

 

 

 

 

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