Tuesday, July 28, 2009

Buildings Having Base Isolation Technology

Spherical Sliding Isolation Systems

Damping Devices and Bracing Systems

Mackay School of Mines, University of Nevada - Reno, Nevada (retrofit)

Los Angeles City Hall, California (retrofit)

San Francisco International Airport, International Terminal, California

San Francisco City Hall, California (retrofit)

Oakland City Hall, California (retrofit)

Pasadena City Hall, Pasadena California

Caltrans Traffic Management Center, Kearney Mesa, California

Los Angeles County Emergency Operations Center, California

Los Angeles County Fire Command & Control Facility, California

Foothill Communities Law & Justice Center, County of San Bernardino, California

Utah State Capitol, Salt Lake City

Saturday, July 25, 2009

Longest Solar Eclipse of 21st Century,

Global visibility chart. The eclipse began at sunrise eclipse on the left (India), and ended at sunset eclipse on the right (Pacific ocean)

MTSAT satellite image of solar eclipse over southeast China

Total eclipse from Kurigram, Bangladesh

These identically scaled photos compare the apparent diameter of the full moon (near apogee) to the nearly new moon (visible by earthshine) on the day before the solar eclipse near lunar perigee.

Total eclipse diamond ring from Kurigram, Bangladesh

Partial eclipse from Quezon City, Philippines

Solar eclipse from Wuhan, China

Phases of the solar eclipse from Lucknow, India

Friday, July 24, 2009


Wednesday, July 22, 2009

Opening in Slab

Placement of Opening:

Effects of Opening in Strength and Treatment
Placement of Reinforcement Around Opening

Strip Method to analyze Opening

Tuesday, July 21, 2009

Stress- strain Relationship of Steel

Stress-Strain Relationship of Different Grade Steels

Offset Method


Vertical Sand Drain

Spacing of Sand Drain:

Monday, July 20, 2009

Requirements For Footing

Spreading of Load:

Footing on Sloping ground:

Footing on Sloping ground:

-dl ≥ t

-dl ≥ 3 x hs

Footing on Sloping groundds ≥ 2 x w

Sunday, July 19, 2009

Continental Drift

Drifting of Continents:

Mechanism Involved Drifting: