introduce INTRODUCTION SUPPORT STRUCTURSE FORCE - LONGITUDINAL FORCE - TRANSVERS weight Figure 3-45....

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INTRODUCTION

SUPPORT STRUCTURSE

FORCE - LONGITUDINAL

FORCE - TRANSVERS

weightFigure 3-45. Chart for selection of saddles for horizontal vessels

Wind force

PROCEDURE 3-11ESIGN OF SADDLE SUPPORTS FOR LARGE VESSELS

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Notation

Wind force

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Notation

weight

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Forces and Loads- Vertical Load per Saddle

FORCE - LONGITUDINAL

FORCE - TRANSVERS

Wind force

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Maximum Loads

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Saddle Properties

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Figure 3-52. Cross-sectional properties of saddles

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Design of Saddle Parts

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Design of Saddle Parts

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Design of Saddle Parts

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Design of Saddle Parts- Anchor Bolts

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Design of Saddle Parts- Anchor Bolts

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Design of Saddle Parts- Ribs

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Design of Saddle Parts- Ribs

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PROCEDURE 3-12

DESIGN OF BASE PLATES FOR LEGS

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Notation

Y = effective bearing length, in.M =overturning moment, in.-lbMb =bending moment, in.-lbP =axial load, Ibft =tension stress in anchor bolt, psiA = actual area of base plate, in.2A, = area required, base plate, in.2f: =ultimate 28-day strength, psif, =bearing pressure, psifi =equivalent bearing pressure, psiFb = allowable bending stress, psiFt = allowable tension stress, psiF, = allowable compression stress, psiE, = modulus of elasticity, steel, psiE, = modulus of elasticity, concrete, psin = modular ratio, steel-concrete

n' =equivalent cantilever dimension of base plate, in.B, = allowable bearing pressure, psiK1,z.s = factorT =tension force in outermost bolt, lbC =compressive load in concrete, lbV=base shear, lbN =total number of anchor boltsNt =number of anchor bolts in tensionAb = cross-sectiond area of one bolt, in.zA, =total cross-sectional area of bolts in tension, in.'a = coefficientT, = shear stress

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CalculationsAxial loading only, no moment.

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CalculationsAxial loading only, no moment.

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CalculationsAxial loading only, no moment.

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CalculationsAxial loading only, no moment.

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Calculations

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Calculations

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Calculations

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Calculations

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Calculations

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Calculations

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1. Fabricated weight: Total weight as fabricated in the shop.2. Shipping weight: Fabrication weight plus any weight added for shipping purposes, such as shipping saddles.3. Erection weight: Fabrication weight plus any weight installed for the erection of the equipment, such as any insulation, fireproofing, piping, ladders, platforms.4. Empty weight: The overall weight of the vessel sitting on the foundation, fully dressed, waiting for operating liquid.5 . Operating weight: Empty weight plus any operating liquid weight.6. Test weight: This weight can be either shop or field test weight, that is, the vessel full of water.

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