Biện pháp lắp đặt cẩu tháp công trình cao tầng

Thuyết minh tính toán biện pháp lắp đặt cẩu tháp đầy đủ file cad công trình 50 tầng

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CALCULATION SHEET THE CONSTRUCTION METHOD OF BASEMENT PROJECT: SUNWAH PEARL – BINH THANH DISTRICT - HCMC.

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THUYẾT MINH TÍNH TOÁN MÓNG CẨU THÁP TC01 - TC02 (QTD160-5522)

CACULATION SHEET FOR

Dự án/ Project: KHU CHUNG CƯ PHƯỜNG 22 – QUẬN BÌNH THẠNH

CONDOMINIUM BLOCKS OF WARD 22,BINH THANH DISTRICT

Địa điểm/ Addrees: đường Nguyễn Hữu Cảnh, phường 22, quận Bình Thạnh,thành phố Hồ Chí Minh Nguyen Huu Canh street,22 Ward,Binh Thanh district,Ho Chi Minh City

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Dự án/ Project: KHU CHUNG CƯ PHƯỜNG 22 – QUẬN BÌNH THẠNH

CONDOMINIUM BLOCKS OF WARD 22,BINH THANH DISTRICT

Địa điểm/ Addrees: đường Nguyễn Hữu Cảnh, phường 22, quận Bình Thạnh,thành phố Hồ Chí Minh Nguyen Huu Canh street,22 Ward,Binh Thanh district,Ho Chi Minh City

EDITED BY:

ĐÀO VĂN PHONG

CHECKED BY:

APPROVED BY:

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Công trình: SUNWAH PEARL

Hạng mục: MÓNG CẨU THÁP TC01- TC02 (QTD160-5522)

Địa điểm: Quận Bình Thạnh – Tp.HCM

Location: Binh Thanh District - HCMC

1 DỮ LIỆU ĐẦU VÀO / INPUT

1.1 Cơ sở, căn cứ tính toán:/ Reference

a Tiêu chuẩn áp dụng:/ Standard

 TCVN 2737:1995 - Tải trọng và tác động -Tiêu chuẩn thiết kế

TCVN 2737 : 1995 “Loads and effects – Design standard”

 TCXDVN 338:2005 - Kết cấu thép - Tiêu chuẩn thiết kế

TCXDVN 338 : 2005 “Steel structures – Design standard”

 TCXDVD 5574:2014 – Kết cấu bê tông và bê tông cốt thép, tiêu chuẩn thiết kế TCXDVN 5574: 2014 “concrete and reinforced concrete structures – Design standard”

 TCXD 195:1997 - Nhà cao tầng, thiết kế cọc khoan nhồi

TCXD 195 : 1997 “High rise building – Design of bored piles”

 TCXDVN 10304: 2014– Móng cọc, tiêu chuẩn thiết kế

TCXDVN 10304: 2014 “Pile foundations – Design standard”

b Phần mềm tính toán: Etabs 2016

Software for calculation: Etabs 2016

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c Hồ sơ khảo sát địa chất của công trình

Report of geotechnical investigation

1.2 Thông số vật liệu./ Materials

- Bê tông móng: B30 (M400): Rb = 17.0 MPa Rbt = 1.2 MPa

Concrete for foundation: Grade B30 (M400)

- Cốt thép d > 10, loại A-III: Rs = 365 MPa

Rebar d > 10, grade A-III

- Cốt thép d ≤ 10, loại A-I: Rs = 225 MPa

Rebar d ≤ 10, grade A-III

1.3 Thông số cẩu tháp/ Tower Crane specification:

Cẩu tháp/ Tower crane (QTD160-5522): (QTD160-5522) (Frame/ Khung 2.0mx2.0m) Bán kính cần thực tế lắp là /Actual installed jib radius: R=55m

Theo Catalogue của cẩu tháp thì chiều cao phải neo vào tòa nhà tối đa là 40m, sau đó cứ 24m sẽ bố trí 1 tầng neo (Khi chiều cao cẩu vượt quá 40m)

According to crane catalogue, maxium height anchored to the building is 40m, after that, 1 anchor span shall be installed for each 24m (Crane height is over 40m)

Nội lực lớn nhất tại chân cẩu dùng để tính toán cho móng cẩu (an toàn tính toán, xét trường hợp cẩu chưa có hệ giằng và chiều cao tự đứng tối đa là 40m)

Maxium internal force at crane foot is used to calculate the crane foundation (safety

calculations, considering the case of crane without bracing and maxium stand height 40m)

Load / Tải trọng tác dụng:

Theo Catalogue móng cẩu tháp QTD160-5522 tải trọng tác dụng lên 4 chân cẩu tháp trường hợp nguy hiểm nhất tương ứng với cẩu tháp ở trạng thái không làm việc, đạt chiều cao tự đứng là 40m

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According to catalogue of crane QTD160-5522, load effect to 4 feet of crane tower in the worst case corresponds to a state that cranes do out service, and stand height is 40m Theo Catalogue móng cẩu tháp, ta có được: According to catalogue of crane, We have:

BẢNG 1.1 SỐ LIỆU TẢI THEO CATALOGUE CẨU THÁP QTD160-5522 TABLE 1.1 LOAD DATA ACCORDING TO CATALOGUE OF CRANE QTD160-

5522

Theo Catalogue móng cẩu tháp, ta có được: According to catalogue of crane, We

have:

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Ghi chú/ Note:

- Lực hướng lên/ Upward load

- Lực hướng xuống/ Downward load

- Các giá trị F2, F3 đều dương, chỉ khác chiều/ Values F2, F3 are both positive, different direction only

- L: bề rộng thân cẩu/ Width of crane’s body

- F là lực tại chân cẩu tháp / Load of foot ‘s crane

* Làm việc / In service

- Trường hợp xiên cần/ Oblique rod case:

1,3

1 3

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* Không làm việc / Out service

- Trường hợp xiên cần/ Oblique rod case:

1,3

1 3

*

820 50761064

Tải ngang/ Horizontal load P= 43.18kN

Out service / Lực dọc tại bốn chân cẩu (kN)

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CALCULATION SHEET THE CONSTRUCTION METHOD OF BASEMENT

PROJECT: SUNWAH PEARL – BINH THANH DISTRICT - HCMC.

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Lực dọc có giá trị âm  kéo (nhổ) Lực dọc có giá trị dương 

 Thiên về an toàn, phần hoạt tải chân cẩu tháp được nhân với hệ số tổ hợp 1.2 Tĩnh tải do trọng lượng bản thân đài móng bê tông cốt thép nhân với hệ số tổ hợp 1.1

trong tính toán thiết kế móng cẩu tháp For safety, live load of tower crane that is load effect to 4 feet are multiplied by a complex factor that is 1.2 And, dead load

that is the self-weight of pile cap are multiplied by a complex factor that is 1.1 Load combination as following: COMBO = 1.1 x static load + 1.2 x live load

Tổ hợp tải trọng như sau: Tổ hợp = 1.1 x Tĩnh tải + 1.2 x Hoạt tải

Nội lực lớn nhất tại chân cẩu tháp tương ứng với chiều cao tự đứng 40m (chỉ xét trường hợp nguy hiểm , tương ứng khi cẩu không làm việc) truyền xuống móng:

Maxium internal force at crane tower foot corresponds to stand height 40m (only

considering the most worst case, when the crane is not working) passed down the

foundation

2 Mô hình giải móng bằng phần mềm Etabs 2016

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Calculating model by Etabs 2016

Model and internal forced/ Mô hình tính và giá trị nội lực:

Load cases of tower crane QTD160-5522/ Các trường hợp tải của cẩu tháp QTD160-5522

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Page 10 Hình 1 Phương án bố trí cọc

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Page 11 Hình 2 Mô hình tổng thể và khai báo chiều dày móng (H = 1500mm)

Figure 2 The general model and assign thickness of pile cap (H=1500mm)

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Hình 3b Mô hình tổng thể và khai báo độ cứng của cọc

(Giả thuyết s = 5mm, Ptk = 2020kN Kz = Ptk/s = 404.0kN/mm; Ky = Kx = 0.1*Kz)

Figure 3b The general model and assign spring of the point

Hình 4 Phản lực đầu cọc lớn nhất/ the maximum reaction force

Hình 5 Phản lực đầu cọc nhỏ nhất/ the minimum reaction force

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Bảng 2.1 Tổng hợp phản lực đầu cọc theo các trường hợp tải

Table 2.1 Nodal Reactions of the piles TABLE: Nodal Reactions

3 TÍNH TOÁN MÓNG CỌC./ CALCULATING PILE FOUNDATION

3.1 Thiết kế cọc chịu tải trọng đứng./ Design piles under vertical load

Căn cứ vào hồ sơ khảo sát địa chất và phản lực đầu cọc, chọn cọc khoan nhồi đường kính D600mm Chiều dài 50m tính từ cote 0.00m

Based on report of geotechnical investigation and reaction of pile head, choose bored pile D600 Length pile 50m from cote +0.00m

Dữ liệu địa chất được nhà thầu cung cấp:

Geotechnical parameters provided by contractor:

Tính toán sức chịu tải cọc D600:

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Depth Top of pile

Depth base of pile

Ð? sâu m?c nu?c ng?m

184

Ultimate bearing capacity R

Ultimate bearing capacity of friction Rs

Ultimate end bearing capacity Rb

Factor of safe FS =

A2600N6.550

0.35

6.4

1.75

mm

? ng su?t do tr?ng lu?ng b?n thân d?t t?i cao trình sàn h?m 32.50 kN/m2

? ng su?t do tr?ng lu?ng b?n thân d?t t?i d? sâu gi?i h?n 6.00 kN/m2

KNKN

2

28121341

? ? / ?n k o

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Pmax = 1867.1 kN < Qa = 1683x1.2=2019.9 kN

 Thỏa mãn điều kiện lực nén

Satify push condition

Pmin = -1209.5 kN Cần kiểm tra điều kiện chịu nhổ

So, check pull condition

- Cường độ chịu nhổ cọc theo cường độ đất nền: / the tensile pile capacity base on soil friction

42 L?p-K:Cát san l?p 1 1

C PILE BEARING CAPACITY

Soil type TYPE hi Depth z

SPT Cu = 6.25N Rs Rc,u Ra

N Ntt Clay [m] [m] Búa Búa [kPa] [kN] [kN]

0 0 0 0 0 0 0 0 0 0 0 0 0.83 0.83 0.83 0.83 0.83 1.66 22.41 14.94 37.35 37.35 9.96 39.01 38.18 35.69 36.52 32.37

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Bỏ qua khả năng chịu kéo của bê tông, chỉ tính cốt thép cọc chịu lực kéo

Ignore tensile capacity of concrete, only rebar of pile works

=> Pgh = As x Rs = 47.12 x 3.650 = 1720.02 (kN)

|Pmin| = 1209.5 (kN) < Pgh = 1720.02 (kN)

=> Thỏa mãn điều kiện lực nhổ

Satify pull condition.

4 TÍNH TOÁN THÉP CHO ĐÀI MÓNG

CALCULATE REBAR OF PILE CAP

a) Tính toán cốt thép đài móng

Calculate rebar of pile cap

Mô hình tính toán đài móng làm việc như conson ngàm tại trục đối xứng đài móng

Calculation model of pile cap is as a console that is fixed at a central line of pile cap

Hình 6 Mặt ngàm của đài móng cẩu tháp QTD160-5522Picture 6 Fixed face of pile cap for tower crane QTD160-5522

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 Bê tông cấp độ bền B30 (tương đương Mác 400 theo TCVN 5574-2012 – Kết cấu

bê tông cốt thép – Tiêu chuẩn thiết kế), Rb = 17.00 (kG/cm2)

Concrete grade B30 (equivalent to grade M400 in accordance with TCVN 5574-2012 – Reinforced concrete structures – Design standard), Rb = 17.00 (kG/cm2)

 Cốt thép cấp bền CIII, Rs =3650 (kG/cm2)

Rebar grade CIII, Rs =3650 (kG/cm2)

 Chiều rộng b = 4 (m), chiều cao tính toán h0 = h –a, với h = 1.5 (m), a = 0.12 (m) cho cốt thép bên dưới và a = 0.09 (m) cho cốt thép bên trên

Width b = 4 (m), calculated height h0 = h –a, with h = 1.5 (m), a = 0.12 (m) for bottom rebar and a = 0.09 (m) for top rebar

A

0.05%

bh

- Nội lực được xuất ra từ Safe 12

The intenal forces is outputed from Safe 12

Chia dãi rộng 1m theo 2 phương cho hết đài móng

Design Strips with width 1m on 2 direction on pile cap

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Page 18 Hình 7 Biểu đồ momen theo phương X (Tổ hợp bao)

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Page 19 Picture 7 Bending moment along X direction (Combo bao)

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Hình 8 Biểu đồ momen theo phương Y (Tổ hợp bao) Picture 8 Bending moment along Y direction (Combo bao)

TÍNH TỐN MĨNG CẨU THÁP Công trình: SUNWAH PEARL Hạng mục: Thép theo 2 phương X, Y

tra

kính

Khoảng cách (cm2/m)

Bê tông mác

Cường độ thép

Gia cường

Đạt/OK

Bảng 4.1 Bảng tính tốn cốt thép đài mĩng Table 4.1 The Table of reinforcement of pile cap calculations

Bố trí thép dưới d20a150 ( As1 dưới = 20.93cm2) và thép trên chọn d20a200 ( As1 trên = 15.7cm2)

Choose Ø20a150 for below side (As1 trên = 20.93cm2) and upper side is also Ø20a200 (

As1 upper= 15.7cm2)

Chi tiết thép mĩng, xem bản vẽ đính kèm/ Detail rebar of pile cap, note drawing

CHECK TENSILE CAPACITY FOR TOWER CRANE

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 Lực kéo lớn nhất tác dụng lên 1 chân cẩu là: Nkéo-max = 1589.64 (kN), được lấy theo catalog của cẩu tháp

Maximum tensile force on each tower crane foot is Nkéo-max = 1589.64 (kN),

according to a catalog of tower crane

Cấu tạo liên kết chân đế cẩu tháp và đài móng: Đoạn chân cẩu tháp ngàm vào đài móng đoạn 1000mm, phía chân cẩu tháp có tấm bản mã vuông 360x360mm Chân cẩu tháp là dạng thép V200 Phía dưới chân cẩu tháp là 2 thanh V50x50x5, 150 mm length

Associated tower crane foot with foundation structure is: tower crane foot is

burried into foundation 1000mm length, have a plate at tower crane foot with area 360x360mm Tower crane foot is a form V200 steel Bottom of tower crane foot is 2V50x50x5, dài 150mm

Lực chịu nhổ lớn nhất tại 1 chân cẩu tháp được tính như sau:

 N1max = 1589.64 (kN)

Cường độ chịu nhổ của 1 chân cẩu tháp:

Tensile force for each foot of tower cranet is:

Diện tích tiếp xúc của đoạn chân cẩu tháp ngàm trong đài móng:

Area of each foot of tower cranet contact with concrete in foundation is:

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2 1

S =0.2 1.0 4=0.8 m x x Diện tích tiếp xúc bản mã thép với bê tông đài móng Area of plate contact with concrete in foundation is:

2 2

S =0.36 0.36 2=0.26 m x x

2

 Diện tích tiếp xúc của thép V50x50x5 với bê tông đài móng Area of plate contact with concrete in foundation is:

2 2

S =0.5 4 0.15 2=0.6 m x x x

2

S =0.80 0.26 0.6 1.66m   

 Cường độ chịu nhổ của 1 chân cẩu tháp:

Maximum tensile force for each foot of tower cranet is:

  N   SxRbt=1.66x120= 199.2(T)

Trong đó: tương ứng M400  Rbt = 1.2 Mpa

With concrete M400  Rbt = 1.2 Mpa

 Kiểm tra/ Check:

 

1 1589 64 1 2 99

N  kN  N  kN  Chân cẩu tháp đảm bảo điều kiện chịu nhổ / Tower crane foot satify tension capacity

Kết luận: Chân cẩu tháp thỏa mãn điều kiện chịu lực (chịu nhổ)

Conclusion: Tower crane foot satify tensile capacity

6 KẾT LUẬN

CONCLUSION

- Móng cẩu tháp TC01 TC02 đảm bảo điều kiện chịu lực

The foundation of tower cranes TC01 TC02 satisfy the strength requirement.

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QTD160(5522) Instruction for the Tower Crane

Contents

1 General……… ….……… 31.0 Introduction 3 1.0.1 Brief introduction 4 1.0.2 Load diagrams 5 1.0.3 Main technical parameters 6 1.1 Main components 7 1.1.1 Slewing mechanism 7 1.1.2 Counter-jib 7 1.1.3 Towerhead 7 1.1.4 Hoisting mechanism 7 1.1.5 Luffing mechanism 7 1.1.6 Jib 7 1.1.7 Mast 7 1.1.8 Cab 7 1.1.9 Anti-overturn device 8 1.2 Safe operation 9 1.2.1 Operator’s qualifications 9 1.2.3 Load control 10 1.2.4 Security maintenance 11

2 Erecting the crane……… 132.1 Receiving the crane 13 2.1.1 Introduction 13 2.1.2 Checks to be carried out after receiving the crane 13 2.2 Installation accessories 13 2.2.1 General 13 2.2.2 Mobile crane 13 2.2.3 Erecting tools 14 2.2.4 Anchorages to the building 14 2.3 Erecting the crane – General 14 2.4 Erecting the stationary crane 15 2.4.1 Preparing the site 15 2.4.2 Foundation treatment of stationary crane / Fitting the fixing angles and removable anchor 19 2.4.2.1 FORCES – STRESSES 19 2.4.2.2 Concrete foundations 22 2.4.2.3 Fixing angles 26 2.4.2.3.1 Conditions of preparation 26 2.4.2.3.2 Dimensional characteristics of the fixing angles 28 2.4.2.3.3 Fitting the fixing angles 28 2.4.3 Counter-jib ballast 30 2.4.4 Anchorages to the building 34

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2

2.4.5 Erecting the crane 40 2.4.5.1 General instructions for erection 40 2.4.5.2 Erection 43 2.4.6 Adding the mast section 67 2.4.7 Checks to be carried out after erection 88 2.5 Dismantling the crane (stationary type) 95 2.5.1 Introduction 95 2.5.2 Preparing before dismantling 95 2.5.3 Dismantling the crane tower 95 2.5.4 Removing the counter-jib ballast 101 2.5.5 Dismantling the jib 101 2.5.6 Dismantling the strut 101 2.5.7 Dismantling the ballast 101 2.5.8 Dismantling the counter-jib 101 2.5.9 Dismantling the towerhead, basic mast, telescopic cage 101 2.6 Fitting the dismountable telescopic cage 103

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1 General

1.0 Introduction

The crane is systematically designed according to different requirements, it has 4-type: Stationary, traveling, climbing, and anchoring

The manual covers the stationary and anchoring type For other types, consult us

The jib combination allows to obtain the jib length used corresponding to the rated hoisting load and rotation radius The three mechanisms (hoisting, luffing and slewing mechanism) adopt frequency control

The erection of the crane requires at least a mobile crane The crane can meet the height requirement by means

of the addition of the mast sections

The slewing mechanism and counter-jib, jib and tower-head, cabin, ballast are connected by shafts The mechanism can turn 360 degrees (not exceed 3-turn; turn backward when reaching the limitation)

The counter-jib is fitted with the hoisting mechanism, luffing mechanism, electric cabinet and ballast

The towerhead is connected with the counter-jib by shafts, and fitted with the luffing pulley block

The jib section is in full steel tube welded structure, connected by the pins according to different length The manufacturer can provide the jib section as the standard length

The mast is 2mx2m The mast sections are connected by shafts The mast includes the rest platforms and ladders

The counter-jib ballast is made up of the casting block These blocks are suspended under the counter-jib nose Accord with human engineering design of the cab makes the work efficiency high in any case of climates and regions

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4

1.0.1 Brief introduction

The crane (GL25/23)’s maximum working range is 55m; elevation angle of the jib is 15°~84° Maximum hoisting weight is 5t; when working range is 55 m, hoisting weight is 2.2 t Maximum hoisting weight is 10 t; when working range is 50 m, hoisting weight is 3 t

1.0.1.1 C haracteristics

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1.0.2 Load diagrams

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6

1.0.3 Main technical parameters

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The crane operator shall be full qualified, as follows:

1) Operator assigned, attend a training course and pass an examination

2) The inspectors, maintenance crews and testers must strictly carry out operation according to the relatedrequirements of the manufacturer’s manual, and shall have the necessary eligibility or qualification

Note: Only the crane operator shall be in the crane cab during the operation Make sure that no person different

to crane operator and unauthorized personnel is on or near the crane

The qualified person, i.e., after training, is able to operate the crane skillfully and handle the crisis, and adapt the work in physical and mental

The client is responsible for the operator’s training

1.2.2 Operator’s notes:

1) The operator should not partake in other activities when operating the crane

2) Do not to operate the crane when the operator feels the mental or physical discomfort, including impairmentfrom alcohol or drugs

3) The operation of crane should be under the direct control of the operators If there is some doubt in safetyaspect, the operators have the rights to stop the service until these problems are solved

4) The operators should have full knowledge of the maintenance for crane Such as: the crane may needadjustment or repair; examine the crane looking for damage to safety operation, stop crane operation until all faults are repaired

5) Before starting the day’s work, the operator must determine:

a Daily service and maintenance has been carried out

b All control switches are turned off; all brake switch and locking device are locked

c The track and the surroundings are free from obstructions

6) Before starting the work, the operator should check the control devices, limiters and communication system,and solve problems

7) Do not start any crane operation when the load and the signalman are out of sight

8) The operator should respond to the signalman When the signalman is not there, the operator should obey thestop signals, and whoever sends a signal Do not start any crane operation until receiving the pertinent signals from the signalman

9) The operator should comply with the load table

10) Before leaving the cab, the operator must:

a Park the crane in the appropriate place in order to avoid being hit by other device on the work site

b Lower the loads to the ground

c Turn off the control switches

11) If power or control fails in service, the operator should:

a lower the load to the ground

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10

b turn off the control switches

12) When operating the crane at night, for security’s sake, the site should have adequate lighting in the cab andworking area

13) Mist, rainfall or snowfall will impair the visibility Do not start the crane in bad weather,

14) The operator or director should reduce the hoisting speed, taking account of the influence of wind Unlessotherwise noted, operations should cease in following conditions

a The strong wind blew the load out of the working radius or the hinge point of jib foot, lower the load to theground

b The wind speed exceed the rated value, lower the load to the ground

15) When assembling the jib or towerhead on the ground or dismantling them, whether with and without thesupporting, bind them from dropping to the ground It was forbidden to stay under the crane when dismantling the connecting pins

1.2.3 Load control

A Load weight

- The weight must not exceed the rated load

- The operator or director should confirm that the weight loaded is in the correct radius

- The load weight table is placed in the cab

Don’t hang the load by winding method

If the slings are in contact with the sharp edge of the load, proper measures should be taken to protect the slings

If more slings are used, but only a sling is needed, the other ropes should be protected

C Hoisting, moving the load

1) Before hoisting or moving the load, the operator or director must check the following:

a) Lift the load a few centimeters from the ground to ensure the balance of load

b) Make sure that the path of the hoisting and slewing is free from any person and obstacles

c) Make sure that the load lifted is free from obstacles

d) Never shorten a sling by means of knots, otherwise cause damage

e).When more slings are used, make sure the slings are not entangled

f) Ensure the load will not rotate or swing

g) Ensure the hoist rope is wound correctly on the drum and pulley

2) When lifting the load, the operator should have the following preventative measures:

a) Slowly decelerate or accelerate to prevent the stress caused by the jib and slewing mechanism

b) Always operate the crane smoothly, avoid sudden braking or acceleration In order to prevent the loadstraying from the working radius, control the slewing speed, reduce the swing range

c) Use a hand rope to “guide” the load, if required

d) Do not lift any load heaver than the load specified by the manufacturer for a given working radius

e) Maker sure the load, jib or any part of the crane are free from obstacles

f) No person shall stand on the load or hook when lifting, lowering or slewing

g) No person shall be allowed to work within slewing radius

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D Controlling the load

When the load is suspended in the air, the operator should have the following warning:

Keep the load under control

No person shall stay or pass under the suspended load

Turn off the control switch

E Signaling

1) It is necessary to signal to the operator

2) The signals shall be established according to an approved signaling scheme The operator may not to respond

to unapproved signals

3) When signaling to the operator, the movements of crane shall be stopped

4) The signalman should

a) be able to operate the crane and fully understand the signals

b) stand in the field of view of crane operator and attentively look at the load, crane and working area

c) ensure that no person is under the path of lifting load

d) ensure that no person is in the working area

F Getting on or off the crane

1) Getting on or off the crane should be in the specified area when the crane operation is stopped

2) When climbing the crane ladder, don’t hold anything in your hand These things can not be placed in the pockets or belt, lift them by a rope or the elevator

G Cab, ladders and catwalk

1) In order to not block the path to the cab or influence the crane operation, the operator should put the clothes and personal things in their proper place

2) Place the tools and devices in the tool box; don’t place the aforementioned goods in the cab, cat-walk or ladders at random Remove junk

H Fire extinguisher

1) The cab should be equipped with a portable fire extinguisher

2) The operator and maintainer should know how to use and maintain the fire extinguisher

1.2.4 Security maintenance

Attention: The crane owner should have the qualified maintenance technicians

1) Before starting repair work, the following movements must be carried out:

a Stop the crane at the place where the crane will not interfere with the other equipment

b Lower the load to the ground

c Turn off the control switches and brakes, stop the crane operation

d Hang the warning sign on the control panel to let know the crane is being serviced

Note: Don’t move the warning sign before putting into service

2) Unless absolutely necessary, don’t try to repair the parts of the crane when the power supply is turned on Keep your body away from the rotating parts if have to repair it The maintenance personal should keep in touch with the operator

3) The maintenance personal should wear tight clothes and require a belt

Note: Don’t wear loose clothes

4) The maintenance personal should wear the safety helmets and eye shields

5) When climbing the crane, for these things can not be placed in the pockets or belt, lift them by a rope or the elevator

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6) Use the leather gloves, avoiding contact with the wire rope directly

7) Only the clean, nonvolatile, non-flammable liquid can be used

8) For the heavy parts, lift them using the lifting jack

9) When welding on the crane, cover pipeline or parts by the fire blanket to avoid the fires or damage

10) When assembling and dismantling the jib or towerhead on the ground, it was forbidden to stay under the jib 11) Keep the crane neat Plastocene, tarpaulin, paper and other dirt not only will effect the normal operations, but it can cause fires

12) Place the tools, spare parts and devices in the tool box Don’t place the aforementioned goods in the cab, cat-walk at random

13) Inflammables are forbidden on the crane

14) After maintenance, put the crane into service until the tools, parts, high-pressure pipe and safety device are well organized A functional test should be carried out after maintenance

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2 Erecting the crane

2.1 Receiving the crane

2.1.1 Introduction

Check and find out which part is broken or missed as quickly as possible after receiving the crane The parts damage more easily in transit, so, it is important to inspect the parts for damage before assembling Thus this will not affect the safe operation and crane strength

If the parts should arrive in a damaged condition, please inform us at once so as to repair or replace them

2.1.2 Checks to be carried out after receiving the crane

1 Check the delivery is complete according to the product list and specification

2 To be on the safe side, note down the damage

3 Adequate support must be provided for parts in order to avoid sludge and water damage in storing

4 The structure should not have deformation

5 Check the rope is clean, lubricated properly and stored on its drum

6 Check that the pins, washers and fasteners are fitted, lubricated properly and ready to begin installation

7 Check the repairing of the paint scratched

8 Other necessary checks

2.2 Installation accessories

2.2.1 General

It requires an auxiliary mobile crane when erecting the crane First, fit the basic mast and the various parts of the upper tower before telescoping For climbing type, fit the special mast for inside climbing, then the 1st mast and upper tower; for traveling type, check the ballast before fitting the upper tower

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2) The capacity and dimension of lifting the heaviest part of crane

3) The customer has to think about the hoisting height and working radius of the mobile crane

3) Don’t use the chain on the jib because they are made of thin-wall pipe

4) The telescoping yoke must have appropriate intensity and be in accordance with the regulations of relevant authority

2.2.4 Anchorages to the building

In this type, the crane tower is supported by the anchorage frames, in horizontal orientation

The anchorage frames shall be installed at the specified location

2.3 Erecting the crane – General

The customer must consider the following items before erecting

1) Check the crane parts and make sure they are in accordance with operating conditions

2) The customer should have the appropriate lifting handling equipment, including lifting belt, erecting tools, etc

3) Man power and tools

4) Installation and commissioning work should be carried out under the direction of a service engineer

5) For telescoping, always slew the jib to the opening of the telescoping cage, i.e., side where the masts are introduced

6) The mast sections must be lifted or lowered as close as possible to the tower

7) Lowering and dismantling the telescoping cage after finishing the telescoping

8) In assembling crane, all the pinning bolts should be firm; the pins and shafts should be covered with grease before fitting them; let the split-pins open

Note: When wind speed is over 13 m/s, or there will be bad weather, stop the erecting or telescoping operation

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2.4 Erecting the stationary crane

2.4.1 Preparing the site

a Space requirements and weight

The weights, radii, heights in the tables have been calculated considering the different possibilities as to:

the site conditions,

the mobile crane available

For each crane, the sketch shown represents the component to be lifted (with all its equipments and connecting accessories such as shafts or bolts)

The height H, for a crane on fixing angles, is the hook height of the mobile crane

The height H includes the sling length which varies according to the crane parts

The other pages specify the weights of the main components for their handling on the site so that the complete packages to be lifted can be constituted

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2200 1765

1167 1054 1

1655 3000 1

1

11022 6606 1

l 75801879

l 69151142

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1

1358 1

2745 1

1348 1214 1

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