1. Basic knowledge of tower crane

　　 1. Tower crane classification:

　　A. Classified by foundation: table foundation (including pile foundation cap), weight foundation, track walking foundation

　　B. Classification according to the rotation arrangement: lower rotary type, upper rotary type

　　C. Classified by luffing method: boom luffing type, trolley luffing type

　　D. Classified by tower cap structure: with tower cap type and without tower cap type

　　2. The basic structure of the tower crane (upper swing trolley type):

　　 a, foundation, b, tower body, c, jacking frame, d, slewing mechanism (including transition section),

　　E, balance arm (including counterweight, hoisting mechanism), f, lifting arm (including trolley luffing mechanism),

　　G, electrical system (including safety devices)

　　3. Common parameters of tower crane:

　　A, lifting weight

　　B, lifting moment

　　C, coverage

　　D, maximum installation height (independent height, attachment height and maximum overhang height)

　　4, the key points of tower crane selection:

　　A. According to the requirements of the shape and characteristics of the building: the maximum installation height of the tower crane should meet the height requirements of the building, and the plane size determines the length of the tower crane's boom and the installation location of the tower crane. Tower crane installation position The shape characteristics of the building facade determine the installation position, installation and disassembly plan and other operational requirements

　　B. According to the requirements of the surrounding environment of the installation location: the independent installation height of the tower crane should exceed the height of the surrounding existing buildings

　　C. According to the requirements of the maximum single piece weight of the hoisted article during the construction process: determine the maximum lifting weight of the tower crane and the lifting weight of the corresponding range (tower crane lifting moment). In particular, consideration should be given to meeting the capacity of steel bar bundle unloading at the parking position of the steel bar transport vehicle.

　　D. According to the structural characteristics of the building:

　　5. Key points of tower crane layout:

　　A, meet the requirements of plane coverage (at the same time, no interference with existing buildings, no interference between towers)

　　B. Meet the structural requirements of the internal buttress wall at the construction height of the building

　　C. Avoid the installation location of the construction elevator. (Before arranging the tower crane, the construction elevator should be arranged first to ensure that the elevator transportation channel is unblocked.)

　　D. As far as possible to meet the space requirements of conventional tower crane demolition, if special demolition is necessary, reasonable arrangements should be made in conjunction with all parties to reduce the difficulty of demolition.

　　7. Information that should be available when using tower crane:

　　 Information that should be available when using tower crane

　　 One, instruction manual

　　 2. Equipment production license

　　 3. Equipment production license details

　　Four, tower crane product certificate (with test report) (factory certificate)

　　 5. Provincial filing certificate

　　 VI. Tower crane foundation groove inspection record

　　 Seven, tower crane foundation construction plan with calculation book

　　 8. Basic steel bar material certificate

　　 Nine, basic hidden information

　　10. Concrete strength report

　　11. Installation, dismantling, and jacking-up wall attachment plan

　　12. Installation qualification and safety license of installation unit

　　13. Operator's post certificate

　　 Fourteen, job safety technical details

　　 15. Installation process record

　　 16. Self-check report after installation

　　17. Application for inspection permit

　　18, the use of tower crane safety technology clarification

　　19. Tower crane operating procedures (including operation and maintenance, maintenance procedures, standards)

　　 Twenty, tower crane "ten not hang"

　　 21. Tower crane operation record, shift record, inspection and maintenance record

　　 22. Verticality measurement record

　　 Twenty-three, tower crane use inspection, rectification records

　　24. External power protection measures

　　 25. Anti-collision measures for group tower operations

　　 3. The special plan for tower crane installation should include the following

　　 1. Project overview

　　2, installation location plan and elevation

　　3, the selected tower crane model and performance technical parameters

　　4. Setting of foundation and wall attachment

　　 5. Climbing condition and attachment device node diagram

　　 6. Installation sequence and safety and quality requirements

　　7, the weight of the main installation parts and the position of the lifting point

　　 8. Type, performance and arrangement location of installation auxiliary equipment

　　 9. Power setting

　　 10. Configuration of construction personnel

　　11. Configuration of slings and special tools

　　12, installation process program

　　 13. Debugging of safety devices

　　14. Major hazards and safety technical measures

　　 15, emergency rescue plan, etc.