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Q. Vibration in structures - resilient bearings?
When railway tunnels are built close to buildings, ground-borne vibration is transmitted to buildingsthrough compression and shear waves [36]. When structural members (such as wall) of a building have natural frequencies similar to frequency at the source, response of structures would be magnified. This effect is evenmore major when building is designed with small number of movement joints. Therefore vibration can be felt inside the building and noise associated with this vibration is produced. To evade this, vibration isolation can be implemented sometimes by providing resilient bearings at column heads in buildings.
A contractor purchased an excavator for $100,000. The life expectancy is 10-years. With the annual interest rate at 7%, the annual cost for the excavator is most nearly: Solutio
shrinkage factor in plans
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TYPES OF OBSTACLES IN CHAIN SURVEYING
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The plastic limit and liquid limit of a soil are 33% and 45% respectively. The percentage volume change from the liquid limit to the dry state is 36% of the dry volume. Likewise, t
Verify the intensity of vertical stress at a point A line load of 100 kN/metre run extends to a long distance. Verify the intensity of vertical stress at a point, 2 m below the
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