For an enclosure including a ground area (2), a spectator area (3) around the ground area and a plurality of bearing points (12) around and above the spectator area, the method of mounting a roof structure comprises: assembling a tension ring (14) at the level of the ground area, the tension ring comprising at least one first cable extending along the tension ring and a plurality of connectors (15) spaced along the tension ring; attaching a plurality of second cables (13) to the plurality of connectors, each second cable having a first end connected to a respective one of the connectors and extending radially and outwardly from the tension ring, each second cable being associated with a respective one of the bearing points (12); and lifting the tension ring by pulling the connectors (15) by the second cables (13).

For an enclosure including a ground area (2), a spectator area (3) around the ground area and a plurality of bearing points (12) around and above the spectator area, the method of mounting a roof structure comprises: assembling a tension ring (14) at the level of the ground area, the tension ring comprising at least one first cable extending along the tension ring and a plurality of connectors (15) spaced along the tension ring; attaching a plurality of second cables (13) to the plurality of connectors, each second cable having a first end connected to a respective one of the connectors and extending radially and outwardly from the tension ring, each second cable being associated with a respective one of the bearing points (12); and lifting the tension ring by pulling the connectors (15) by the second cables (13).

The present invention relates to a multi-sport center and more specifically, a multi-sport center having sectors used for various sport games and a passage separating the sectors, wherein each sector includes courts formed according to court standards of sports whose courts are inter-compatible to each other, and the adjacent courts are inter-compatible, thereby increasing efficiency of a sport center. The center further comprises more than one cooling and heating booth installed at one side of each sector, thereby helping players in each court to take breaks. In addition, the center further comprises cantilevers that is installed on an inner wall at the second to the fourth floor level and that can look down the first floor, wherein a café, a snack bar, a media room, an electronic game room, a go game room, and jogging track, instead of stands, are installed on the cantilevers.

The present invention relates to a multi-sport center and more specifically, a multi-sport center having sectors used for various sport games and a passage separating the sectors, wherein each sector includes courts formed according to court standards of sports whose courts are inter-compatible to each other, and the adjacent courts are inter-compatible, thereby increasing efficiency of a sport center. The center further comprises more than one cooling and heating booth installed at one side of each sector, thereby helping players in each court to take breaks. In addition, the center further comprises cantilevers that is installed on an inner wall at the second to the fourth floor level and that can look down the first floor, wherein a café, a snack bar, a media room, an electronic game room, a go game room, and jogging track, instead of stands, are installed on the cantilevers.

A lighting system is for providing photosynthetically stimulating artificial light to a specified target area where such artificial light is needed. The lighting system has at least one luminaire with a light source. The luminaire emits photosynthetically stimulating light at a narrow beam angle of less than and including 20° (FWHM). The lighting system has means for positioning the at least one luminaire at a distance of minimum 20 m from the specified target area measured in a light beam direction, and the luminaire is adapted to illuminate the specified target area with a minimum photosynthetic photon flux density of 140 μmol/s/m.sup.2. A method is for improving the growth conditions for plants in need of light at a specified target area by exposing the plants to a photosynthetically artificial light from a light source.

There exists a number of youth development programs centered on sports programming. Some of these programs operate on a platform of revitalizing neighborhood spaces to improve community engagement by creating a space for youth to enjoy sports. Oftentimes these neighborhood spaces include restrictions or the surrounding community has needs (like lighting and seating) which are unmet or under-met. Envisioned is a system approach to addressing these needs wherein a wide variety of custom solutions can be produced from prefabricated, modular, and portable components that interface with existing amenities (if any) so to enrich the youth experience and better achieve program objectives. This modular approach provides a common infrastructure for different spaces, different sports, and different levels of play.

There exists a number of youth development programs centered on sports programming. Some of these programs operate on a platform of revitalizing neighborhood spaces to improve community engagement by creating a space for youth to enjoy sports. Oftentimes these neighborhood spaces include restrictions or the surrounding community has needs (like lighting and seating) which are unmet or under-met. Envisioned is a system approach to addressing these needs wherein a wide variety of custom solutions can be produced from prefabricated, modular, and portable components that interface with existing amenities (if any) so to enrich the youth experience and better achieve program objectives. This modular approach provides a common infrastructure for different spaces, different sports, and different levels of play.

A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex, with surrounding entertainment, educational, sports, and commercial facilities, the complex having controlled public access and providing the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon. The method allows for generating revenue and increasing efficiency by pairing vacant sites, underutilized sites, limited use land, or sites that are contiguous to entertainment, educational, sports, and/or commercial venues with urban beach entertainment complexes. The complex preferably has a controlled public access, thereby allowing entrance upon payment of a fee.

A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex, with surrounding entertainment, educational, sports, and commercial facilities, the complex having controlled public access and providing the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon. The method allows for generating revenue and increasing efficiency by pairing vacant sites, underutilized sites, limited use land, or sites that are contiguous to entertainment, educational, sports, and/or commercial venues with urban beach entertainment complexes. The complex preferably has a controlled public access, thereby allowing entrance upon payment of a fee.

The detailed principle, structure, manufacture and designing method of a retractable roof for large stadiums or other huge spaces are established. This roof is formed by using a number of connected and paralleled inflatable arc shaped tubes (called “air beams”) made of soft material (membrane). Using successive inflation to the tubes can realize deploying of the roof, and using successive deflation of tubes can realize retraction of the roof. All these processes can be completed by an automatically controlled program. A rigorous mathematics derivation and mechanics proof show that, the retractable air beam roof with durable membrane of ordinary durability can have a large span of over 100 meters, and can withstand in a regularly extreme (critical) weather (heavy wind, rain, snow and hail). The outstanding strong point of this kind of retractable roof is absolutely safe for spectators and performers (or competitors) inside the stadium.