Ejector Stack Foundation Calculation

DOCUMENT TYPE:

CALCULATION REPORT DOCUMENT TITLE:

EJECTOR STACK FOUNDATION CALCULATION REPORT

4 3 2 1

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REV.

DATE

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PRE.

CHK.

APP.

CONTRACTOR

GEG

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Issue For Approval

Client

Description

Purpose of Issue

PROJECT TITLE :

GOL-E-GOHAR MEGA MODULE PROJECT Client :

Client : MINES & METALS TECHNOLOGICAL ENGINEERING CO.

Client ‘S Project Code Main Area Code Plant Group Equipment Document Project Contractor Code Type

GEG

7

119 NAME

PREPARED CHECKED APPROVED

1005

7

SK

Eng. Discipline

Serial No.

C

001

05 MMTE No.

DATE

SHEET

REV.

GGMMCH45C4-001 Contract No. : 90/1942

This document and the information disclosed are the property of MMTE and are not to be used to furnish any information for making of documents or apparatus except where approved by written agreement.

REVISION RECORD SHEET

GOL-E-GOHAR MEGA MODULE PROJECT DOCUMENT TITLE

Ejector Stack Foundation Calculation Report

Document No: Client Document NO: MMTE Document NO:

MMTE Rev .

DATE:

1

GGMMCH45C4-001

Note: This Table is use for External Comments.

Page:

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GOL-E-GOHAR MEGA MODULE PROJECT DOCUMENT TITLE

Ejector Stack Foundation Calculation Report

Document No: Client Document NO: MMTE Document NO:

MMTE Rev .

DATE:

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GGMMCH45C4-001

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Table of Contents 1 Introduction...........................................................................................................................................

2 General View.........................................................................................................................................

3 Loading..................................................................................................................................................

13.

Dead load:.................................................................................................................................. 6

23.

Seismic load:.............................................................................................................................. 6

3.

Wind load:.................................................................................................................................. 6

4 Evaluation of Seismic Load:................................................................................................................

5 Evaluation of Wind Load:.....................................................................................................................

6 Foundation Design................................................................................................................................

16.

Reinforcement............................................................................................................................ 8

7 Overturning & Sliding Check...............................................................................................................

17.

Overturning control..................................................................................................................... 9

27.

Sliding control............................................................................................................................. 9

8 Anchor Bolt Design:...........................................................................................................................

GOL-E-GOHAR MEGA MODULE PROJECT DOCUMENT TITLE

Ejector Stack Foundation Calculation Report

Document No: Client Document NO: MMTE Document NO:

MMTE Rev .

DATE:

1

GGMMCH45C4-001

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1 Introduction Represented document is a brief calculation report of stack foundation located beside Heat Recovery structure. Foundation structural system is a 1.5m thick reinforced concrete mat. The top level of the foundation is 1.8m under the finished ground level.

2 General View Location of structure in plant site is shown in Error: Reference source not found. of the structure are illustrated: Y X

North

Figure 1: Location in Plant Site

GOL-E-GOHAR MEGA MODULE PROJECT DOCUMENT TITLE

Ejector Stack Foundation Calculation Report

MMTE Rev .

Document No: Client Document NO: MMTE Document NO:

DATE:

1

GGMMCH45C4-001

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In following figures, views of stack and the foundation are shown:

~45m

Figure 2: 2D View of Stack

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Document No:

Ejector Stack Foundation Calculation Report

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MMTE Rev .

DATE:

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GGMMCH45C4-001

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Figure 3: 3D View of Stack foundation 10 m

10 m

Figure 4: Stack foundation plan

3 Loading 3.1 Dead load: Weight of refractory part is 137 ton up to 25.6m height and weight of equipment and external shell is 93ton.

3.2 Seismic load: According to ISIRI No.2800, (Iranian code of seismic resistant design of buildings) seismic loads are calculated.

3.3 Wind load: According to Iranian code of building loads wind loads are calculated.

GOL-E-GOHAR MEGA MODULE PROJECT DOCUMENT TITLE

Document No:

Ejector Stack Foundation Calculation Report

Client Document NO: MMTE Document NO:

MMTE Rev .

DATE:

1

GGMMCH45C4-001

4 Evaluation of Seismic Load: According to GENERAL DEISIGN CRITERIA Base acceleration factor A= 0.30g Importance Factor I = 1.2 Petro plant: 2-3-7

Structural Behaviour Factor R=3 Reflection Factor (conservatively) B=2.5

2800: 2-3-1

C=ABI / R = (0.30 x 2.5 x 1.2) / 3 = 0.30 WE = Weight of Refractory part +Weight of Equipment and External shell WE=137+93=230 ton Seismic load: VE=C x WE =0.30 x 230 = 69 Ton VE=69 Ton

5 Evaluation of Wind Load: P = Ce x Cq x q

INBC Part 6: 5-6-6

Cq = 0.8(as shown below)

INBC Part 6: 9-6-6

Wind Direction

+0.8

q = 845 N/m2 Ce = Max [ 2 , 2(Z/10)0.16 ] Ce = Max [2 , 2×(44.838/10)0.16]= Max [2 , 2.54]=2.54 P= Ce Cq q=2.54×0.8×845=1718 N/m2 Vw=1718×198.4= 340 KN Vw =34 t << VE =69 t So seismic loading governs.

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Document No: Client Document NO: MMTE Document NO:

Ejector Stack Foundation Calculation Report

DATE:

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GGMMCH45C4-001

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6 Foundation Design M=1995 t.m

806 t

1.3m

2.4m

1.5m

qmax

M=VE×h=69×(25+2.4+1.5)=1995 t.m P=Wstack+Wpedestal +Wfoundation=806 t e=M/P=2.4m

>

B/6=1.67m

According to design criteria: Allowable Soil Pressure=1.5 Kg/cm 2 qmax=4P/(3L(B-2e))=1.4 Kg/cm2 < 1.5 Kg/cm2 OK

6.1 Reinforcement As min=0.002bd=0.002×100×140=28 cm2/m Mmax=18 t.m/m

→

T28@200

Mult=1.6×18=28.8 t.m/m → As required=7 cm2/m << As min

GOL-E-GOHAR MEGA MODULE PROJECT DOCUMENT TITLE

Document No:

Ejector Stack Foundation Calculation Report

Client Document NO: MMTE Document NO:

MMTE Rev .

DATE:

1

GGMMCH45C4-001

Page:

T28@200

T25@200 T20 T20 T20@200

T20 T20

T28@200

7 Overturning & Sliding Check 7.1 Overturning control Seismic moment:

ME =69×(25+1.5+1.4)= 1995 t.m

Resistant moment: MR =(Ws + Wf + Wp) = (230+360+256)×5= 4230 t.m SF = MR/ME = 2.12 > 1.75 OK

7.2 Sliding control Assume µ=0.2 Ff =FN×μ =(230+360+256)×0.2=846×0.2= 169 t VSliding=VE =69 t SF=Ff / VSliding = 169 / 69= 2.45 > 1.5 OK

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GOL-E-GOHAR MEGA MODULE PROJECT DOCUMENT TITLE

Ejector Stack Foundation Calculation Report

Document No: Client Document NO: MMTE Document NO:

MMTE Rev .

DATE:

1

GGMMCH45C4-001

Page:

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8 Anchor Bolt Design: Ω0=2 0.85PD+Ω0PE ≤ PT

Petro plant: 2-3-7

INBC1-3-10

PUSD=0.85×230=195 t →PASD=161 / 1.7=94 t MUSD =2×69×25=3450 t.m →MASD=3450/1.7=2020 t.m ~ 2008 t.m

CAPACITY