22Lifting Pin450450450450Spreader Beam12006.25Lifting Pin41Lifting Chain Spot DetailPre-CastPanel2,300 Kg/cu.m.Spreader Beam Cross-SectionSide ViewFront View00Lifting Chain B000€ A 4-T crane is used to lift a 3m x 1.2m x 200mm pre-cstpanel. A preader beam is needed to ensure the properdistribution of load in the lifting chains. Considermodulus of elasticity, E=200,000 MPa, allowableshearing stress of lifting pin is 50 MPa, the steel plateused in the spreader beam has an allowable bearingstress of 40 MPa. (All measurement in the figure is inmillimeters)1. Determine the total load in kN, the crane has to carrythe the lifting accessories (spreader beam, lifting chainsand hooks) has a total mass of 720 kgs.if2. Determine the average normal stress on each leg ofthe lifting chain A and B.3. Determine the required diameter (d) in millimeters ofthe lifting pin if the allowable shearing stress must notbe exceeded (Round to the nearest whole number).4. Determine the required thickness (t) in millimeters ofthe steel plate to be used if the allowable bearing stressmust not be exceeded. (Round to the neareat wholenumber)

mass of panel = 2300 kg mass of accesories = 720 kg Wnet = net weight =( 2300+720 ) * 9.81 =…

1. Determine the total load in kN, the crane has to carry if the the lifting accessories (spreader beam, lifting chains and hooks) has a total mass of 720 kgs. 2. Determine the average normal stress on each leg of the lifting chain A and B. 3. Determine the required diameter (d) in millimeters of the lifting pin if the allowable shearing stress must not be exceeded (Round to the nearest whole number).

1. Determine the total load in kN, the crane has to carry if the the lifting accessories (spreader beam, lifting chains and hooks) has a total mass of 720 kgs. 2. Determine the average normal stress on each leg of the lifting chain A and B. 3. Determine the required diameter (d) in millimeters of the lifting pin if the allowable shearing stress must not be exceeded (Round to the nearest whole number).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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