The present invention corresponds to a device for positioning elements along a support body, comprising a first plate with a groove on its perimeter and a second plate with a groove on its perimeter, the first plate is in contact with the second plate, wherein the groove of the first plate and the groove of the second plate are coincident, and in which the positioning elements are arranged between the grooves of the first plate and the second plate. Additionally, the first plate and second plate have fastening means allowing them to be fastened to the support body.

The present invention corresponds to a device for positioning elements along a support body, comprising a first plate with a groove on its perimeter and a second plate with a groove on its perimeter, the first plate is in contact with the second plate, wherein the groove of the first plate and the groove of the second plate are coincident, and in which the positioning elements are arranged between the grooves of the first plate and the second plate. Additionally, the first plate and second plate have fastening means allowing them to be fastened to the support body.

A wind turbine tower configured to support a wind turbine nacelle and a rotor, and with a tower wall of an inner surface and an outer surface. The tower is tethered by a number of cables, each cable extending between a first end anchored to an anchoring element and an opposite, second end attached to the tower at an attachment element. Two cables extending from two different anchoring elements are attached to the tower such that longitudinal projection lines from the second ends of the two cables converge at a convergence point, which lies at a location at a certain height and inside the tower wall thickness. Alternatively, the convergence point lies inside the tower within a distance of three wall thicknesses from the wall inner surface as measured at the height and in a direction perpendicular to the central longitudinal axis of the tower. The invention further relates to a method of erecting a wind turbine tower tethered by cables and configured for supporting a rotor assembly, and wherein the tower comprises a number of tower sections joined to each other. The method comprises positioning a first tower section, attaching at least some of the tethering cables to a second tower section while the second tower section is on the ground, lifting the second tower section with the attached cables onto the first tower section, and joining the second tower section to the first.

A wind turbine tower configured to support a wind turbine nacelle and a rotor, and with a tower wall of an inner surface and an outer surface. The tower is tethered by a number of cables, each cable extending between a first end anchored to an anchoring element and an opposite, second end attached to the tower at an attachment element. Two cables extending from two different anchoring elements are attached to the tower such that longitudinal projection lines from the second ends of the two cables converge at a convergence point, which lies at a location at a certain height and inside the tower wall thickness. Alternatively, the convergence point lies inside the tower within a distance of three wall thicknesses from the wall inner surface as measured at the height and in a direction perpendicular to the central longitudinal axis of the tower. The invention further relates to a method of erecting a wind turbine tower tethered by cables and configured for supporting a rotor assembly, and wherein the tower comprises a number of tower sections joined to each other. The method comprises positioning a first tower section, attaching at least some of the tethering cables to a second tower section while the second tower section is on the ground, lifting the second tower section with the attached cables onto the first tower section, and joining the second tower section to the first.

A method of reinforcing the tower base in existing guyed towers. A guyed tower is a tower supported by a base and guy cables. The tower's foundations are Base and Deadman anchors. The base is an isolated spread footing which is pier and pad or pile foundation. This method of reinforcing is a new mechanism to transfer part of the download on base to an alternative mat foundation.

The reason of using this mechanism is that the soil underneath the tower base is getting high stresses above its limit. The soil is getting overstressed due to some reasons that it happens frequently.

The standard procedure is before building any tower, the Geotechnical engineer does test boreholes at the proposed location of the tower foundations (Base Deadman Anchors). The geotechnical engineer provides the soil report with soil parameters at each borehole. The structural engineer designs the guyed tower and get the download on the tower base to design the spread footing (or pile). The download is the result of the dead load (tower own weight, mounts, antennas, microwave dishes, cables & equipment) and live load (wind & ice). The structural engineer designs the base to transfer the download from the tower to the soil safely based on the information that was given by the geotechnical engineer. In the future, if no change in loading, then the base will function well as designed, however the client always changes the dead load (antennas, microwave dishes, cables & equipment) and this is due to the fast-growing telecom technologies and the country needs. So, in most cases the base requires reinforcing.

The nonstandard procedure is to design the tower base, based on normal dry soil. Normal dry soil is a soil with average soil parameters values, this could happen due to short notice given by the client to the geotechnical engineer and the geo couldn't make it before designing the base. In this case the structural engineer designs the base with some assumed soil parameters and increasing the download to cover the absence of soil report (multiply download by factor more than 1.0, usually 1.20). Later after receiving the soil report, sometimes the soil parameters are weaker than the parameters that was used by the structural engineer. Here, the engineer must find the stresses on soil underneath the tower base and compare it with the soil report, if it was above the soil limit then reinforcing the base is required.

Something else which is the ice thickness, and this is defined by the ANSI-TIA-222. Telecommunications Industry Associations reviews the ice records and publish new list of the past 50 years of ice thickness. Also, they provide some changes on ice

A method of reinforcing the tower base in existing guyed towers. A guyed tower is a tower supported by a base and guy cables. The tower's foundations are Base and Deadman anchors. The base is an isolated spread footing which is pier and pad or pile foundation. This method of reinforcing is a new mechanism to transfer part of the download on base to an alternative mat foundation.

The reason of using this mechanism is that the soil underneath the tower base is getting high stresses above its limit. The soil is getting overstressed due to some reasons that it happens frequently.

The standard procedure is before building any tower, the Geotechnical engineer does test boreholes at the proposed location of the tower foundations (Base Deadman Anchors). The geotechnical engineer provides the soil report with soil parameters at each borehole. The structural engineer designs the guyed tower and get the download on the tower base to design the spread footing (or pile). The download is the result of the dead load (tower own weight, mounts, antennas, microwave dishes, cables & equipment) and live load (wind & ice). The structural engineer designs the base to transfer the download from the tower to the soil safely based on the information that was given by the geotechnical engineer. In the future, if no change in loading, then the base will function well as designed, however the client always changes the dead load (antennas, microwave dishes, cables & equipment) and this is due to the fast-growing telecom technologies and the country needs. So, in most cases the base requires reinforcing.

The nonstandard procedure is to design the tower base, based on normal dry soil. Normal dry soil is a soil with average soil parameters values, this could happen due to short notice given by the client to the geotechnical engineer and the geo couldn't make it before designing the base. In this case the structural engineer designs the base with some assumed soil parameters and increasing the download to cover the absence of soil report (multiply download by factor more than 1.0, usually 1.20). Later after receiving the soil report, sometimes the soil parameters are weaker than the parameters that was used by the structural engineer. Here, the engineer must find the stresses on soil underneath the tower base and compare it with the soil report, if it was above the soil limit then reinforcing the base is required.

Something else which is the ice thickness, and this is defined by the ANSI-TIA-222. Telecommunications Industry Associations reviews the ice records and publish new list of the past 50 years of ice thickness. Also, they provide some changes on ice

Antenna tower construction/deconstruction biasing assemblies are provided. The biasing assemblies can be configured to extend between a standard and an antenna tower. The assemblies can include: an adjustable linear extension extending between a first end configured to couple with the standard and a second end configured to couple with the antenna tower; and a biasing mechanism configured to adjust the length of the linear extension and maintain the rigid engagement during transitioning of the tower from a down/erect position to an erect/down position. Methods for constructing/deconstructing an antenna tower are provided. The methods can include providing a biasing assembly.

Antenna tower construction/deconstruction biasing assemblies are provided. The biasing assemblies can be configured to extend between a standard and an antenna tower. The assemblies can include: an adjustable linear extension extending between a first end configured to couple with the standard and a second end configured to couple with the antenna tower; and a biasing mechanism configured to adjust the length of the linear extension and maintain the rigid engagement during transitioning of the tower from a down/erect position to an erect/down position. Methods for constructing/deconstructing an antenna tower are provided. The methods can include providing a biasing assembly.

A transportable ground tower for an aircraft landing system, and methods of assembling and raising the same, are disclosed. The ground tower may include at least lower and upper tower sections configured to be assembled to form a ground tower structure extending substantially vertically from a ground surface in an operational orientation. The lower tower section may have a pivot configured to be pivotally secured to a stationary ground base. The ground tower may also include a stand pivotably secured to one of the plurality of tower sections, which is configured to support an end of the assembled tower structure in an assembly orientation to permit assembly of one or more tower devices to the tower structure.

A beach umbrella anchoring system including an anchor member container, in the form of a cylindrical beach umbrella carrying bag, for containing a weighting medium, such as sand or water, and a connector for connecting the container to a beach umbrella restraining device; and a beach umbrella restraining device including a flexible cable member, a releasable connector fixed to one end of the cable for releasably connecting the cable to a beach umbrella, a second releasable connector, fixed to the other end of the cable, for releasably connecting the cable member to the anchor member, and a third releasable connector, attached to the anchor member for releasably attaching to the ground. The anchoring system may be supplied in the form of a kit comprising the anchoring member (beach bag), umbrella and the restraining device.