Ground Bearing Pressure Convert To Floor Load

Calculation of bearing capacity.

Ground bearing pressure convert to floor load.

However you should consider the weight of the raised floor in the floor loading formula. And if you don t calculate correctly you ll have an expensive repair on your hands. In this test a square or circular rigid plate of standard dimension generally 300 mm2 for square or 300 mm dia for circular is placed. Example 1 ground pressure known find area of pad size outrigger pont loading based on 25tground bearing pressure weight of crane weight of load ground bearing pressure weight of crane 72t weight of counterweight 60t 132t weight of load 11 4t hook block tackle 0 7t fly jib if fitted 0 5t.

Calculate the force exerted on the ground i e. For the calculation of bearing capacity of soil there are so many theories. Floor loading calculations help you make better racking decisions. Crane weight and attachments plus load weight and rigging.

Net allowable bearing pressure q na this is the pressure we can used for the design of foundations. Plt plate load test plate load test is a field test which is commonly adopted to determine the bearing capacity and settlement of soil under a given condition of loading. Ground pressure is measured in pascals pa which corresponds to the ees unit of pounds per square inch psi. The bearing capacity of soil is the maximum average contact pressure between the foundation and the soil which should not produce shear failure in the soil.

A typical wood frame floor covered with carpet or vinyl flooring has a dead load of about 8 pounds per square foot. In the reverse case it is equal to net safe settlement pressure. Manitowoc s ground bearing pressure estimator program is designed to assist lift planning personnel by providing an estimate of support requirement for a lattice boom crawler truck or ringer crane. This is equal to net safe bearing pressure if q np q ns.

With some basic information on the crane weight gross load weight and ground bearing pressure then the size of outrigger cribbing for adequate support can be calculated. The dead load on a floor is determined by the materials used in the floor s construction. Crane tech teaches a 4 step process. In geotechnical engineering bearing capacity is the capacity of soil to support the loads applied to the ground.

About bearing capacity of soils. This program assumes that the lift has been fully engineered to verify attachment combinations radius angles and that the capacities are within.