154HC Mast SectionSafety technology of tower crane attachment Construction: construction requirements, technology and precautions
Requirements for attachment construction of tower crane:
1. When the tower crane is attached to the building, its stress strength must meet the Attachment requirements of the tower crane.
2. It is forbidden to install or dismantle the anchoring device in case of strong wind of level 6 or above.
154HC Mast Section：
http://www.towercranesupply.com/product/154hc-mast-section-liebherr-tower-crane
Construction technology and process of tower crane attachment:
1. According to the total height of the construction of the project, as well as the characteristics of the building structure and the requirements of the construction schedule, the following attachment scheme is arranged: two anchorages are arranged, the spacing of the attachment supports is 1500m, and the angle steel attachment rod system and the corresponding attachment process are adopted.
2. When installing the attached frame and attached members, observe with theodolite, and adjust the attached members to ensure the verticality of the tower body.
3. The attached frame shall be set at the node connection of the standard section of the tower crane as far as possible, and the tower body shall be hooped tightly, and diagonal bracing shall be set at the diagonal of the tower frame for reinforcement.
4. The anchorage device added along with the jacking and installation of the tower body section shall be attached to the building in time. The free height of tower body above anchorage device shall not exceed 40m generally.
5. When it is necessary to set up multi-channel anchoring devices for ultra-high building construction, the lower anchoring device can be transferred to the upper part for use. However, the distance between the first anchorage device and the tower crane foundation shall not exceed 50m. The arrangement of each anchorage device shall comply with the relevant provisions in the operation manual.
6. Reinforcement shall be added at the place where the attached support is arranged and the concrete grade shall be increased appropriately. When attaching, the structural strength at the attached support must reach the design strength. The attached support is set on the cast-in-place concrete inner wall panel, and the support and reinforcement must be set between the wall panel and the wall panel (this span and the adjacent span). (when the attached support is fixed on the floor, the reinforcement support shall be set between the two floors. ）The attached bearing shall be firmly fixed and the gap between it and the building structure shall be closely embedded.
154HC Mast Section：
http://www.towercranesupply.com/product/154hc-mast-section-liebherr-tower-crane
Safety precautions for tower crane attachment Construction:
1. In the process of operation, the anchorage device must be checked frequently. In case of any looseness or abnormality, the operation shall be stopped immediately, and the failure shall not be used again without thorough elimination.
2. When dismantling the crane, the corresponding anchoring device shall be dismantled along with the process of lowering the body. It is strictly forbidden to dismantle the anchoring device before dropping the tower.
3. The installation, disassembly, inspection and adjustment of the anchorage device shall be in the charge of a specially assigned person. The safety belt and helmet shall be worn during the work, and the relevant provisions of the safety operation regulations for high altitude operation shall be observed.
154HC Mast Section：
http://www.towercranesupply.com/product/154hc-mast-section-liebherr-tower-crane
