scholarly journals SOIL BEHAVIOR UNDER EARTHQUAKE LOADING CONDITIONS. Interim Report No. 1.

1971 ◽  
Author(s):  
Keyword(s):  
Earthquake Loading ◽  
Loading Conditions ◽  
Interim Report ◽  
Soil Behavior

scholarly journals Preliminary tests on an energy absorbing element for braced structures under earthquake loading

1983 ◽  
Vol 16 (3) ◽  
pp. 201-212 ◽  
Author(s):  
R. G. Tyler
Keyword(s):  
Static Loading ◽  
Stable Condition ◽  
Earthquake Loading ◽  
Loading Conditions ◽  
Energy Absorbing

While quite slender cross bracing may suffice to maintain rigidity in a braced structure under static loading conditions, during an earthquake progressive slackness develops in the bracings, resulting from overstrain in tension, which gives rise to increasing horizontal movements and degradation. In this paper tests are described on devices, fabricated from round bars and located at the centre of the bracings, which allow repetitive overstrain to occur without the development of slack. It is postulated that, for a stable condition of cyclic overstrain, the device shall be of the same shape as the frame to be braced, and most usually fabricated in steel rod or bar. Successful tests were carried out on such a device in a square frame.

Clay Strength Under Earthquake Loading Conditions

1966 ◽  
Vol 92 (2) ◽  
pp. 53-78 ◽  
Author(s):  
H. Bolton Seed ◽  
Clarence K. Chan
Keyword(s):  
Earthquake Loading ◽  
Loading Conditions

The Interaction between Adjacent Structures with Different Foundation Levels under Earthquake Loading

2013 ◽  
Vol 479-480 ◽  
pp. 1109-1114
Author(s):  
Kyoung Bong Han ◽  
Doo Yong Cho
Keyword(s):  
Deep Structure ◽  
Shallow Foundations ◽  
Earthquake Loading ◽  
Soil Behavior ◽  
Deep Foundation ◽  
Frame Element ◽  
First Case ◽  
Adjacent Structures ◽  
Shallow Structure ◽  
Standard Frame

The aim of this paper is to study the interaction between adjacent structures with different foundation levels under earthquake loading conditions. Structures and soil are represented by two different models. In the first case, the structure itself is modeled with standard frame element, whereas the soil behavior is stimulated by a special grid model. In the second case, the structure and soil are represented by plane stress or plane strain elements. The Interaction between the two structures is demonstrated and discussed via numerical examples using the proposed method and program. In case of the structures having shallow foundations, the interaction is small and negligible. If the foundation of one structure is shallow and the other one deep, then the interaction renders the forces in one structure 20% smaller than those in a single shallow structure, If the neighboring structures have the same deep foundation level, then due to interaction the forces in one structure are 25% larger than those in a single deep structure.

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