顶板梁安装(英文).doc

Shandong TIEJUN Electric Power Engineering Company Limited
PROCEDURE FOR CEILING GIRDER
DOC.NO.: JPL
Project: Jhajjar Thermal Power Plant
REV. NO.:
Client: JHAJJAR POWER LIMITED
PAGES:

PROCEDURE FOR CEILING GIRDER

Compiling: Date:
Checking: Date:
Approving: Date:

Revision Information
No.
Approving Date
1.

2.

3.

1. Authorized basis
1.1 Boiler factory in Harbin construction drawing
1.2《Electric power construction and acceptance technical specification》
1.3《Fire electricity construction quality examination and assess standard》
1.4《The quality acceptance of the steel structure engineering construction norm》（GB50205-2001）
1.5《Electric power construction safety work regulations》(first part: Thermal power plant)（DL5009.1-2002）
1.6《Electric power construction safety health and environment management work provision》（2002 edition）
1.7 Boiler profession construction organization design
2. Project general situation
JPL 2 × 660 MW power station #1, #2 boiler steel structure provided by Harbin boiler factory, adopt the structure which is separate from main workshop.
Roof steel structure combine by ceiling girder, secondary beam and surface support, come into a rigid surface. For here adopt A,B,C,D,E four row ceiling girder, the length of span is 28m, A ceiling girder divide in three parts, E ceiling girder divide into two parts, the main ceiling girder of B、C、D have a big capacity、wideness span more, adopt the stop log style.
3. Main workload
Ordinal number
Name
Shape size: height×wide×length
Weight
Amount
1
A-1
10485×1810×500
5875.35KG
2
2
A-2
6984×1800×400
3410.5KG
1
3
B upper
28860×3600×1200
69363.5KG
1
4
B lower
28860×2000×1200
51590.1KG
1
5
C upper
28880×3600×1600
83182.9KG
1
6
C lower
28880×2000×1600
63251KG
1
7
D upper
29140×4000×1800
129289.3KG
1
8
D lower
29140×2000×1800
101037.9 KG
1
9
E
13973×3500×700
20593.1KG
2
4. Homework condition
The main equipments delivered condition
Ceiling girder arrived in order
remark
Preparation condation for erection
area, force emerge:
a. first class panel(420 V power supply)
b. Oxygen, acetylene
c. The spot fire fight device with temporary pipe line

Environment:
a. The construction road is unimpeded.
b. The site tool building, temporary deposit area for ceiling girder. And the deposit area neat and solid.
Work period
2010.05.23～2010.06.10

Manpower
The technique is 2 people, the safety be 2 people, the fire Han be 2 people, the electric welding be 4 people, install 30 people, heavy 12 people, operation 6 people, 2 electricians, the work be 8 people.

Machine
The 350 t track mourn(CC2200) one set, the 75 t tower mourn(FZQ1650) one set, electric welding machine 2 set

Work tool
electric wrench, grinding machine, chain block,
big hammer, pry stick, line to fall to, the kind be blunt, live wrench, spring coil to call, Ф 50 sling, Ф 22 sling etc..

Measure tool
Spirit level, level instrument, theodolite, 100 m tape measure, 50 m tape measure, 2 m steel plate Chinese foot...etc…

Material
Wood the plank, square wood, hemp cordage, level rope, soft climb steps, from the lock machine, from lock machine rope, guard rope etc…

5. Homework project
5.1．Construction scheme
According to each ceiling girder weight and relevant data, calculation it and get result, upper parts of D、C、B ceiling girder weight is more, proceed to lifting it by 350 t track to mourn(CC2200) and 75 t the tower mourn(FZQ1650), and it will be lifted at furnace inside area. 3450t crawler crane (CC2200) adopt principal arm 72 meters and assistant arm 30 meters and 72 meters and assistant arm 42 meters SWSL work condition and arrange right side of furnace, the 75 t tower arrangement on the left side of furnace. Others ceil girder lift by 75t tower crane alone.
5.2 The construction work preface flow chart
Construction preparation

Lineation on the furnace roof steel structure

Ceiling girder and secondary beam install

Total lineation for steel structure

5.3 The construction prepare a work preface card Number：001
1. Summarize: According to construction mission, before working well item an opening of each item preparation work.
2. Operation method
Serial number and step name
Main homework method and operation requirement
quality requirement
1. Acquaint with drawing
Total worker who will attend construction should know the drawing & techno ledge well, explicit construction mission, quality standard. Know well about the machine work condition.

2. Work tool preparation
The construction power supply connect line, instruments, measure, sling for lift in readiness
1. Work tool, quantity intact, satisfy construction demand.
2. Quantity through examination qualified and in the term of validity.
3. open box and check material
According to the construction diagram paper and equipments detailed list in the factory house, to crest plank beam the equipments carry on a little bit pure, check, to existence of the equipments blemish carry on record, and basis blemish circumstance notice department concerned.
The equipments external appearance has no crack, heavy skin, severity rust eclipse, hurt, drill a hole hairless stab.
4. Equipments size reexamination
According to check a mark request, check size & champers of each ceiling girder, and make a record. Alignment & marking for ceiling girder.

5. Preparation for lifting
Before erection, prepare well for the temporary facility.
For example, soft ladder, level rope, life line & scaffold.

5.4 Furnace roof steel structure lineation sequence card Number：002
1. Summarize: According to the construction diagram paper and technique request, carry on a heat of steel gearing lineation.
2. Operation method:
serial number and step name
Main homework method and operation requirement
quality requirement
1. Find out base line
According to the zero level centerline as the pedestal, mark the centerline of B23 and k axis on the top of column.
1. Install the lineation complete and lead each longitudinal, horizontal center line to on the side.
2. centerline of B23 and k axis
According to the centerline of B23 and k axis, mark the centerline of support seat according to the distance support seat from of ceiling girder to above two axis,
3.The reexamination sign pillar size
Recheck the elevation deviation of the center deviation of and pillar crest of a plank beam, pillar crest, each sign a pillar an elevation is bad mutually.
4.Reexamination each center diagonal line deviation
Recheck a plank each of beam a center diagonal line deviation
5.5 The ceiling girder install a work preface card Number：003
1. Summarize: According to the construction diagram paper and technique request, and the homework project that front say, carry on a plank beam install.
2.Operation method:
Serial number and step name
Main homework method and operation requirement
quality requirement
1.H row crest the plank beam(A-1 and plank A-2 beam) install
It has three pieces of ceiling girder for H row. A-1 beam weight is 5.87t. A-2 beam weight is 3.4t. it is same measure for it lifting with normal beam. It can be lifted by 75t tower crane.
1. Install process in, the Gou piece rub noodles have to dozen whet in addition to rust, peep out metals sheen.
2. To wear, should use first to sell son temporary fix, treat another one the beam carry install after take seat again wear to pack HS bolt.
3. The assembly install to complete and wear to pack point of contact stud bolt in time.
2. N row crest plank beam(E plank beam) install
It has two pieces of ceiling girder for N row. Two pieces weight are same 20.6t. Lifting by 75t.
1. Card wreath, steel wire rope, climb steps' etc. to mourn to pack tool consideration a calculation according to the 3 t.
2. Take beam center for hang some position.
3.The J row plank beam(B plank beam) install

1、The B ceiling girder lower part weight is 51.6 t, distance from 75 t tower is 22 meters, standard capacity is 75 t, load percentage is 45%, distance from 350 t tower is 30 meters, standard capacity is 30.8 t, load percentage is 84%.
2. The B ceiling girder upper part weight is 69.4t, adopt 350t crawler crane and 75t tower crane combine lift it. And the rotary diameter for 350t crawler is 30m and for 75t is 24m. 350t crawler crane standard capacity is 30.8t, divided Loading is 26.25t, loading rate is 85%， the standard capacity for 80t tower crane is 66t, divided loading capacity is 47.15t,and loading rate 71.5%.
1. 350t crawler crane adopt main arm 72m + assistant arm 42m + SWSL work condition, it is forbid to work in mini work scope.
2. Shackle, sling and ladder and so on, all the tools for erection weight is 4t.
3. Sling adopt one pair of Ф50（6×30+ 1 piece of steel core）and one pair of Ф50（6×30+1 piece of steel core）。
4. Details will be show you in accessories drawing No 1.
4.C ceiling girder erection
1. C lower ceiling girder weight is 67.25t, upper ceiling girder weight is83.2t.
2. The C ceiling girder lower part weight is 67.25 t, distance from 75 t tower is 20 meters, standard capacity is 75 t, load percentage is 45%, distance from 350 t tower is 22 meters, standard capacity is 50.8 t, load percentage is 74%.
3.The C upper ceiling girder adopt 350t crawler crane and 75t, 350t crawler crane rotary diameter is 25.6m, capacity is 41.3t, lifting capacity is 40t, and it condition rate is 97%. for 75t tower crane rotary diameter is 24.4m, capacity is 66t, lifting capacity is 47.2t, it condition rate is 72%
1. The capacity of 350t exceed 90%, so we should arrange one person be in charge it.
2. 350t crawler crane adopt main arm 72m + assistant arm 30m + SWSL work condition, it is forbid to work in mini work scope.
3. Shackle, sling and ladder and so on, all the tools for erection weight is 4t.
4. Sling adopt one pair of Ф50（6×30+ 1 piece of steel core）and one pair of Ф50（6×30+1 piece of steel core）.
5. Details will be show you in accessories drawing No2.
5. D ceiling girder erection
1. D ceiling girder upper part weight is 129.3tt, lower weight is 101t+4t, and it will be lifted by 350t crawler and 75t tower crane tighter.
2.350t crawler crane the rotary diameter is 17m when lift the ceiling girder lower part, and standard work condition is 64t, lifting capacity is 51t, rate 80%. 75t tower crane the rotary diameter is 21.8m, standard capacity is 75t, lifting capacity is 58t, rate 77%。
3. 350t crawler crane the rotary diameter is 17m when lift the ceiling girder upper part, and standard work condition is 64t, lifting capacity is 58.36t, rate 97.5%. 75t tower crane the rotary diameter is 21.5m, standard capacity is 75t, lifting capacity is 71t, rate 94.5%。
1. The capacity of 350t and 75t exceed 90%, so we should arrange one person be in charge it.
2.350t crawler crane adopt main arm 72m + assistant arm 30m + SWSL work condition, it is forbid to work in mini work scope.
3. Shackle, sling and ladder and so on, all the tools for erection weight is 3t.
4. Sling adopt one pair of Ф47.5（6×30+ 1 piece of steel core）and one pair of Ф43（6×30+1 piece of steel core）。
5. Details will be show you in accessories drawing No.3.
6. Secondary beam erection
After each ceiling girder lift complete, erect the secondary beam in time, to keep the structure stability.

5.6 Alignment sequence card for steel structure Number：004
1. summarize: According to the construction drawing and technique request, alignment to total steel structure.
2.Operation method:
Serial and step name
Main homework method and operation requirement
quality requirement
1.HS bolt check
after finishing install of total, check each point of HS bolt
Have never leak to wear, wrong use, the direction be consistent.
2.The steel seek positive
The alignment starts from one box, then escalate. The sling need fix on component, protect by iron clad or wood block inside。
The crest plank beam after seek positively carry an adoption stud bolt conjunction with pillar.
3.The stud bolt beginning be tight
If steel structure match with《check mark 》, can tight HSPG bolt. For make HS bolt loading well-proportioned, tightening from center to outside. The H type steel structure, tightening should web plate firstly, wing plate secondly. Marking on the head of HS bolt after tight complete.
1. The pillar feet center line deviation± 3 mm
2. Sign a pillar elevation deviation:± 3 mm
3. Each sign a pillar elevation deviation mutually:≤ 2 mm
4. Each sign a pillar to be apart from deviation:≤ 0.7 ‰ pillars be apart from, and ≤ 7 mm
5. Sign pillar a perpendicular degree deviation:≤ 0.7 ‰s sign pillar long, and ≤ 10 mm

6. Pillar crest and the 1 m elevation big and small opposite angles:≤ 1 ‰ diagonal line be long, and ≤ 10 mm
7. Beam elevation deviation:± 3 mm
8. Beam level degree deviation:≤ 3 mm
9. The beam is apart from deviation:± 3 mm
10.Beam and pillar crest flat surface center line deviation:≤ 2 mm
4.The acceptance, stud bolt are eventually tight
Stud bolt the beginning be tight be over and carry on whole acceptance. The acceptance is qualified behind the stud bolt is eventually tight. Eventually tight hour, then can press a dynamoelectric wrench switch after needing all of the plum flower heads to insert a tube inside the set, otherwise the stud bolt could not reach tight solid stalk dint combine influence set the service life of the tube. Eventually tight hour plum flower head knock out is qualified, position not good or slippery of stud bolt, usage move wrench tight, and brush on the plum flower head white paint marking.

5.Defend rust
The stud bolt is eventually tight to complete, each point of contact brush prevent rust paint, prevent from friction noodles rusty.

6.QA check list
Check item description
Examiner
Check result
Date/signature
F
E
A
O
Crest plank beam check
×
×
×

Crest plank beam lineation
×
×
×

Stove crest the steel install a lineation
×
×
×

Stove crest the steel install
×
×
×

The steel whole reexamination seek positive
×
×
×

F：The representative director of the work；
E：The engineer of the single item；
A：Profession supervisor engineer；
O ：The representative of the owner

7. Safely civilization construction and environment supervise
7.1 Safely civilization construction measure
7.1.1 Commonly safely civilization construction measure
The construction person is healthy, strictly abide. Be given the safely and technique instruction prior to work commencement, study and get acquaintance with construction guidance instruction.
All engineers shall get safety education and get familiar with