Yes. The plan to build pre-stressed steel cables for wind hybrid tower cranes is considered a dangerous and major project. The pre-tensioned construction of a wind hybrid tower crane is a complex project and involves high-risk operations. The structure of hybrid tower crane is complex, and there are many dangerous factors in the installation process, such as errors in lifting operations, over- or under-stretching of pre-stressed cables, etc., which will cause dangers potential for on-site workers and equipment.
Refers to his tower. The lower part of the tower is made of concrete and the upper part is made of steel tower. The specific height depends on the situation.
The mixed tower has a fully pre-stressed concrete tower. Compared to flexible steel towers, this tower has greater overall structural rigidity and greaterdamping coefficient, ensuring that the unit will remain stable during installation and throughout its life cycle. The small amplitude of the unit ensures a stable wind angle of the turbine system, more stable power generation and significantly reduces operation and maintenance costs.
The tower can be divided into reinforced concrete and steel structures depending on the materials. The all-steel structure tower has a low natural vibration frequency and is also called flexible tower. The partly concrete and partly steel structure is called a composite tower.