General Continuum Models for Discrete Structures
New knowledge is presented about the structural behavior of a variety of large repetitive lattice configurations of the type appropriate for utilization in cosmic space. Focus is placed...

Use of Computer Graphics in the Analysis of Large Space Structures
This paper illustrates how interactive computer graphics can provide a useful tool in setting up analytical models of structural latticeworks comprised of large numbers of degrees of freedom...

Damage Detection in Periodic Structures
Nondestructive damage detection in periodic structures using continuum analogues of the discrete structure is studied. Algebraic equations relating changes in eigenfrequencies to the fractional...

Uplift Behavior of Shallow Soil Anchors?An Overview
An overview is presented of the static uplift (tensile) behavior of shallow anchors used for foundations in soil. Basic anchor types are described, and their general installation and behavioral...

The Uplift Capacity of Helix Anchors in Sand
Results of field and laboratory investigations of the uplift capacity of helix anchors in sand are presented. Equipment and instrumentation were used to measure uplift load, anchor deflection...

Uplift Capacity of Helical Anchors in Clay and Silt
The results of a study on the uplift capacity of helical anchors in clay and silt are presented. Full-scale field tests and one-quarter scale laboratory tests were conducted in each soil...

Uplift Capacity of Shallow Offshore Foundations
Soil failure under upward loading is investigated by experimental laboratory tests. The problem of uplift capacity is considered in terms of effective stresses in soil skeleton and pore...

Resistance of Shallow Inclined Anchors in Clay
Some recent laboratory model test results for the ultimate pullout resistance of a square anchor inclined at angles of 0, 20, 50, 75, and 90 degrees with respect to the horizontal have...

New Cables for Old
In an eingineering first, the main suspension cables will be replaced on New York City's Williamsburg Bridge without closing it to traffic at any time. According to the design...

Hurricane Alicia
One Year Later
In the pre-dawn hours of August 28, 2983, Hurricane Alicia ripped its way ashore at the western tip of Galveston Island and moved northward to the Greater Houston area. This storm caused...

Composite and Mixed Construction
Steel and reinforced concrete are frequently combined in composite or mixed structural systems. This combination generally results isn greater economy and safety than could be achieved...

Coastal Zone '85
Coastal Zone '85 was a multidisciplinary conference for professionals, interested citizens, and decision-makers to exchange information and views. Coastal zone management...

Managing the Transition to CADD
The transition to computer aided drafting and design (CADD) must first begin by establishing the need and the desired or expected results. The transition is comprised of three phases:...

The Outardes 2 Concrete-Faced Rockfill Dam
The main dam of the Outardes 2 development consists of a rockfill embankment, built against an old water-retaining structure, and faced with an upstream concrete membrane. The interface...

Foz do Areia Dam?Design, Construction, and Behaviour
The 525 ft (160 m) high Foz do Areia dam in the Iguacu River, Parana, Brazil, built by 'Companhia Paranaense de Energia - COPEL', between 1975-1980, is part of...

Design Features of Salvajina Dam
Salvajina dam is the second highest concrete face rockfill dam currently in service in the world. The characteristics of the foundation of the toe slab vary from fresh, sound and little...

Design and Construction of Terror Lake Dam
Terror Lake Dam is a central feature of the 189 million Terror Lake Hydroelectric Project, located on Kodiak Island Alaska. The dam is a 193-feet (59 m) high concrete-faced zoned rockfill...

Seismic Design of Concrete Faced Rockfill Dams
The results of analytical studies of the stability of the slopes of concrete-faced rockfill dams under different levels of earthquake shaking are presented and used to propose desirable...

Seismic Analysis of Concrete Face Rockfill Dams
In this article, the observed behavior of existing rockfill dams during earthquakes is compared with published data regarding the estimated seismic performance of several recently designed...

Design and Stability Evaluation of Balsam Meadow Dam
The proposed Balsam Meadow Dam is a 126 feet high concrete-faced rolled rockfill dam currently under construction for the Balsam Meadow hydroelectric project in California. Detailed field...

 

 

 

 

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