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US 8,555,600 B2Granted
Method for mounting in sections an annular tower for wind power generator, heliostatic power generator or chimney composed from three concrete segments or more
AssigneeCortina Innovations S.A. de C.V.
InventorsAlejandro Cortina-Cordero, Jose Pablo Cortina Ortega, Jose Pablo Cortina Cordero
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Abstract
A method for erecting a pre-stressed sectionalized and segmented concrete tower for wind power or heliostatic generator or chimney is provided. The method includes the step of providing a plurality of assembling supports and lifting harnesses in order to support to the concrete segments for assembling concrete section from the concrete segments using a small capacity crane, and installing, with a high capacity crane the assembled concrete sections to conform the concrete tower. The lifting harness provides safety scaffolds for personnel during prestressing.
Claims7
A method for erecting a pre-stressed sectionalized and segmented concrete tower, which includes a plurality of concrete tower sections, the method comprising the steps of:
- building a tower foundation;
- assembling a first concrete tower section of the plurality of concrete tower sections, the step of assembling the first concrete tower section comprising the steps of:
- fabricating a plurality of concrete segments having internal vertical and horizontal ducts for introducing pre-stressing tendons;
- fabricating an assembling support and a lifting harnesses for providing a support to the plurality of concrete segments when assembled in the first concrete tower section, wherein the assembling support includes a plurality of scaffolds;
- rigidly securing said plurality of scaffolds for workers at different heights along a longitudinal axis of the first concrete tower section to allow the workers to safely pre-stress and condition the first concrete tower section when assembling the plurality of concrete segments;
- installing with a crane, the plurality of concrete segments on the assembling support to form the first concrete tower section;
- engaging and securing the lifting harness to the first concrete tower section;
- lifting the first concrete tower section with the lifting harness;
- mounting the first concrete tower section on the tower foundation;
- disengaging the lifting harness from the first concrete tower section;
- assembling a remainder of the plurality of concrete tower sections through the use of assembling supports and mounting the remainder of the concrete tower sections one by one through the use of lifting harnesses according to the same steps of assembling the first concrete tower section;
- and
- joining the plurality of concrete tower sections through vertical pre-stressed tendons to provide a rigid tower,
- wherein the assembling supports used for assembling the plurality of concrete tower sections are fabricated independently of each other according to each concrete tower section to be assembled.
11 more elements
A method for erecting a pre-stressed sectionalized and segmented concrete tower, which includes a plurality of concrete tower sections, the method comprising the steps of:
- building a tower foundation;
- assembling a first concrete tower section of the plurality of concrete tower sections, the step of assembling the first concrete tower section comprising the steps of:
- fabricating a plurality of concrete segments having internal vertical and horizontal ducts for introducing pre-stressing tendons;
- fabricating an assembling support and a lifting harnesses for providing a support to the plurality of concrete segments when assembled in the first concrete tower section, wherein the assembling support includes a plurality of scaffolds;
- rigidly securing said plurality of scaffolds for workers at different heights along a longitudinal axis of the first concrete tower section to allow the works to safely pre-stress and condition the first concrete tower section when assembling the plurality of concrete segments;
- installing with a crane, the plurality of concrete segments on the assembling support to form the first concrete tower section;
- engaging and securing the lifting harness to the first concrete tower section;
- lifting the first concrete tower section with the lifting harness;
- mounting the first concrete tower section on the tower foundation;
- disengaging the lifting harness from the first concrete section;
- assembling a remainder of the plurality of concrete tower sections through the use of assembling supports and mounting the remainder of the concrete tower sections one by one through the use of lifting harnesses according to the same steps of assembling the first concrete tower section;
- and
- joining the plurality of concrete tower sections through vertical pre-stressed tendons to provide a rigid tower,
- wherein the tower has an extension including a cylindrical body, the method further comprising the steps of
- providing a plurality of cylindrical sections to form the cylindrical body;
- mounting an adapter ring to adapt the plurality of cylindrical sections of the tower;
- mounting the cylindrical body to a top of the plurality of concrete tower sections;
- joining the cylindrical body to lower sections of the tower by pre-stressing tendons;
- and
- mounting a flange for mounting a nacelle, and mounting the nacelle to a top of the prestressed concrete tower.
17 more elements
A method for erecting a pre-stressed sectionalized and segmented concrete tower, which includes a plurality of concrete tower sections, the method comprising the steps of:
- building a tower foundation;
- assembling a first concrete tower section of the plurality of concrete tower sections, the step of assembling the first concrete tower section comprising the steps of:
- fabricating a plurality of concrete segments having internal vertical and horizontal ducts for introducing pre-stressing tendons;
- fabricating an assembling support and a lifting harnesses for providing a support to the plurality of concrete segments when assembled in the first concrete tower section, wherein the assembling support includes a plurality of scaffolds;
- rigidly securing said plurality of scaffolds for workers at different heights along a longitudinal axis of the first concrete tower section to allow the works to safely pre-stress and condition the first concrete tower section when assembling the plurality of concrete segments;
- installing with a crane, the plurality of concrete segments on the assembling support to form the first concrete tower section;
- engaging and securing the lifting harness to the first concrete tower section;
- lifting the first concrete tower section with the lifting harness;
- mounting the first concrete tower section on the tower foundation;
- disengaging the lifting harness from the first concrete section;
- assembling a remainder of the plurality of concrete tower sections through the use of assembling supports and mounting the remainder of the concrete tower sections one by one through the use of lifting harnesses according to the same steps of assembling the first concrete tower section;
- and
- joining the plurality of concrete tower sections through vertical pre-stressed tendons to provide a rigid tower,
- wherein the lifting harness includes a plurality of bars, each of the plurality of bars includes a load distributor having more than one rod secured to the corresponding assembled concrete tower section.
11 more elements
Dependencies are inferred from the claim text.