L46A1 Mast অনুচ্ছেদ যে বিষয়গুলি টাওয়ার কপিকল নিরাপত্তাকে প্রভাবিত
Tower crane plays an important role in the construction, so it becomes an important factor affecting the construction progress and quality. By analyzing the characteristics of safety management of tower crane and taking corresponding measures, the safety of tower crane can be improved and the effect of twice the result with half the effort can be achieved.
L46A1 Mast Section
http://www.towercranesupply.com/product/l46a1-mast-section-for-tower-crane-masts
The factors affecting the safety of tower crane are as follows:
(1) The working height of tower crane is from 20 meters to more than 400 meters. The driver, installation personnel and maintenance personnel are all working at heights. With the rapid development of urban construction, the space that can be left to the construction unit has been very small. In this narrow space, the operation of tower crane is inevitably beyond the scope of the construction site, and the boom activity area often extends to the non construction area, so it is more difficult to install and maintain the construction machinery than to work on the ground. Once a tower fall accident occurs, it is not only easy to cause casualties of drivers, installers and maintenance personnel, but also endangers the safety of buildings, equipment and personnel in the surrounding non construction area. The tower crane itself will be damaged, and a serious tower fall accident will cause a tragedy of "machine damage and human death".
(2) For the tower crane in the construction of middle and high-rise buildings, tie bars (wall frame attached) shall be used every 16-20 m to connect the tower body and the structure of the building with anchoring devices. Some tower toppling accidents are caused by the unfitness of the device or the wall structure quality, and the tower crane and the building will be damaged after the tower toppling.
(3) Different from most of the construction machinery which can be operated by machine alone, tower crane operation requires the cooperation of drivers, commanders (signalmen) and other special operators. Their technical quality or cooperation status also become the factors affecting the safety of tower crane. Some tower crane accidents are caused by poor technical quality or poor cooperation of one or more of them.
(4) Different from most internal combustion construction machinery, tower crane uses electricity as power source, and some tower crane operation areas have overhead power lines crossing over, so there are hidden dangers of electric shock in the internal and external environment of tower crane. Safe use of electricity and avoidance of overhead power lines is the primary part of tower crane safety management.
(5) More than 100000 of the 200000 tower cranes currently in use in China are leased. Many tower crane accidents are caused by the inadequate safety management of one or both parties.
(6) In order to shorten the construction period and improve the working efficiency, there will be multiple tower cranes working in the same area at the same time during the construction of large buildings or groups of buildings. Due to the narrow construction site, there are potential safety hazards of mutual interference of command signal, wireless communication and boom. If not handled properly, it will cause safety accidents. The construction machinery working on the ground also has group operation, but there is little correlation between them.
(7) পুরো নির্মাণ আমলে সবচেয়ে নির্মাণ যন্ত্রপাতি সাধারণভাবে ধ্বংস এবং ইনস্টলেশন প্রধান কাঠামো পরিবর্তন করতে প্রয়োজন হবে না। অর্ডার নির্মাণ প্রয়োজনীয়তা পূরণ করার জন্য, মিনার সারস যেমন ইনস্টলেশন, ধ্বংস, একাধিক অপহরণ, পরিমার্জন ইত্যাদি উচ্চ ওঠা ভবন, গোটা নির্মাণ সময়কালে গঠন পরিবর্তন করতে হবে। সেখানে দুর্ঘটনার অনেক লুকানো বিপদ আছে।
L46A1 Mast অনুচ্ছেদ
http://www.towercranesupply.com/product/l46a1-mast-section-for-tower-crane-masts
