JP6410521B2 - Upper lighting structure of semi-underground structure facility - Google Patents

Description

  The present invention relates to an upper daylighting structure of a semi-underground structure facility, for example, installed so as to cover an upper opening provided for the purpose of daylighting and ventilation of a semi-underground structure road, and prevents flicker due to sunlight incident from the upper opening. At the same time, it relates to the upper lighting structure of the semi-underground structure facility that maintains the ventilation performance of the opening.

  Semi-underground road facilities have been constructed as expansion roads in urban areas, etc. for noise countermeasures around roads and efficient use of land. FIG. 5 is a schematic perspective view showing an example of a general semi-underground structure road facility. The semi-underground structure road 50 shown in the figure includes a double box culvert 51 with vertical lines separated from each other, and a retaining wall body 53 standing integrally with a top plate 52 of the culvert 51 and resisting the covering soil 56. . The upper opening 55 that communicates with the ground part for the purpose of lighting and ventilation of the road part has a predetermined interval in the longitudinal direction of the road so as to cut out a part of the top plate 52 and the central separation partition wall 54 sandwiched between the stay walls 53. Open and formed.

  When a vehicle travels on a semi-underground road having such a structure, a location that receives external light incident from the upper openings 55 arranged at predetermined intervals and a location that is a shadow of the top plate 52 that covers the upper side of the road travel. Since the direction continues alternately, there is a problem that the driver is uncomfortable due to the flicker phenomenon (flicker) in which the bright part and the dark part alternately enter the field of view, and the driving environment is hindered. In order to prevent this, for the purpose of appropriate lighting and ventilation, and also noise prevention, soundproof panels are continuously installed above each opening so as to make a predetermined inclination, and leakage of road traffic noise to the outside. In addition, a soundproof structure that ventilates through an opening while shielding direct sunlight is proposed (Patent Document 1).

JP 2006-342514 A

  In the soundproof structure disclosed in Patent Document 1, if the inclination at the time of installation of the flat soundproof panel is increased, the opening becomes too large, and sunlight enters between the soundproof panels, and a flicker phenomenon having a pattern different from that before the installation occurs. There is a fear. On the other hand, if the inclination is reduced, the opening becomes too small and the necessary ventilation cannot be ensured. In addition, since the soundproof panel itself is a complete light-shielding body, the inside of the box culvert becomes considerably dark, and the visibility is lowered by the exhaust gas staying in the culvert, so that there is a problem that the vehicle must be lit during daytime. In addition, when raining, rainwater may flow directly on the road through the soundproof panel, or a snow mass stuck to the soundproof panel and falling to a predetermined thickness may fall on the road by sliding on the panel surface.

  Therefore, the object of the present invention is to solve the above-mentioned problems of the prior art, prevent the occurrence of flicker phenomenon that the driver receives during traveling, ensure a moderate amount of light that provides a comfortable driving situation, and provide sufficient ventilation. It is to provide an upper daylighting structure for a semi-underground structure facility.

To achieve the above object, the present invention is a top lighting structure for covering an upper opening formed continuously in the longitudinal direction at predetermined intervals on the top plate of the semi-underground structure facilities, the said upper opening near A membrane material is provided on a curved frame that is erected on a top plate and has a height that can secure a predetermined ventilation space above the upper opening, and one end of which is extended from the column by a predetermined length. A stretched daylighting panel is installed on the top plate continuously in the longitudinal direction so that a film portion projecting from the column between adjacent daylighting panels has a predetermined overlap, and covers the upper opening, External light is uniformly incident from the upper opening.

  The film material is preferably a film material having a visible light transmittance of 5 to 50% and a haze value of 80% or more.

  It is preferable to form a titanium oxide photocatalyst layer on the surface of the film material.

  As described above, according to the present invention, on a semi-underground road, there is a substantially uniform lighting for preventing the occurrence of a flicker phenomenon that a driver receives during driving, and an appropriate amount of light that provides a comfortable driving situation. As well as being secured, there is an effect that sufficient ventilation can be performed and adverse effects on the road during rain and snow can be reduced.

The schematic perspective view which showed the construction example which applied one Embodiment of the upper lighting structure of the semi-underground structure facility of this invention to the semi-underground structure road shown in FIG. The partial side view shown in order to demonstrate the positional relationship with the installation state of the upper lighting structure shown in FIG. 1, and a center separation partition. The partial expansion perspective view which showed the installation state of one Embodiment of an upper lighting structure. The partial expansion perspective view which showed the assembly state of one Embodiment of an upper lighting structure. The model perspective view which showed an example of the conventional semi-underground structure road facility.

  Hereinafter, the basic structure of one embodiment of the upper daylighting structure of the semi-underground structure facility of the present invention will be described with reference to FIG. FIG. 1 shows one retaining wall of the semi-underground structure road facility 50 (hereinafter referred to as a semi-underground road) shown in FIG. 5 in order to show the configuration of the upper daylighting structure 10 of the semi-underground structure facility 1 of the present invention. It is explanatory drawing which removed and showed the body 53 and the covering soil 56. FIG. As shown in FIGS. 1 and 5, the upper opening 5 (55) formed in the top plate 2 (52) of the box culvert of the semi-underground road 1 (50) is predetermined along the longitudinal direction of the semi-underground road. It is formed at intervals. A daylighting panel 10 as an upper daylighting structure is installed at predetermined intervals in the longitudinal direction so as to cover each upper opening 5. As will be described later, the daylighting panel 10 is a daylighting member in which a film material that transmits sunlight or the like as diffused light at a predetermined ratio is stretched on a frame that forms a predetermined curved surface shape.

  Hereinafter, the configuration of the daylighting panel 10 will be described with reference to FIGS. The single daylighting panel 10 has a first roof portion 10A having a curvature radius R1 that is convex upward and a second roof portion having a curvature radius R2 that is convex downward when viewed from the side (see FIG. 2). 10B has a curved surface shape that forms a waveform curve as viewed from the side. 10A of 1st roof parts and the 2nd roof part 10B are installed on the top plate so that the continuous position vicinity may be located above an upper opening. The curvature radius R1 of the first roof portion 10A is set larger than the curvature radius R2 of the second roof portion 10B. The first roof portion 10A may be a flat surface. In that case, the curvature radius R1 = ∞ may be considered in a side view. In the following description, for the description of the daylighting panel 10, among the both ends in the longitudinal direction of the daylighting panel 10, the end constituting the upper side of the inter-panel opening 30 (FIG. 4: described later) is the front end 11, and the panel An end portion constituting the lower side of the inter-opening 30 is a rear end.

  The front end 11 of the daylighting panel 10 protrudes forward from the column 12 that supports the daylighting panel 10, and the rear end 13 protrudes rearward from the column 14. As shown in FIG. 2, the projecting length of the front end 11 of the daylighting panel 10 is such that the sunlight that illuminates the daylighting panel 10 has an inter-panel opening 30 (the rear end 13 and the front end 11 of the adjacent daylighting panels 10, 10) throughout the year. Is set to such a length L that direct light from the vertical surface (see FIG. 4) does not enter the upper opening 5 of the top plate 2. Adjacent daylighting panels 10 are installed such that the rear end 13 of one panel 10 and the front end 11 of the other panel 10 overlap each other by a predetermined amount. That is, the end portions of the adjacent daylighting panels 10 and 10 (rear end 13 and front end 11) overlap with each other while maintaining a predetermined interval that allows ventilation, thereby allowing direct light to enter while maintaining ventilation performance. Therefore, it is possible to perform daylighting with almost uniform transmitted light on the semi-underground structure facility.

  Here, the member which comprises the lighting panel 10, and its structure are demonstrated with reference to FIG. As shown in the figure, the daylighting panel 10 has a structure in which a film material 18 is stretched around a frame 16 having a predetermined shape. That is, the frame 16 includes longitudinal members 16A and 16B that are bent so as to form an arc shape with a predetermined curvature radius so that the daylighting panel 10 has a waveform curve shape when viewed from the side, and ends of the longitudinal members 16A and 16B. These are assembled as a frame body connected to the horizontal member 17 located in the intermediate portion, and are erected on the top plate 2 by the support columns 12 and 14. As a member constituting the frame 16, it is preferable to use a variety of ordinary steel materials such as a square steel pipe, a round steel pipe, a grooved steel, and an H-shaped steel having a predetermined strength and weather resistance, and a stainless steel material.

  As the film member 18 stretched on the frame 16 as a frame body, a fabric made of synthetic resin such as polyester fiber or inorganic fiber such as glass fiber is coated with a synthetic resin such as vinyl chloride resin or fluorine resin. Available. In this embodiment, a film material in which a tetrafluoroethylene resin, which is a fluororesin, is coated on both surfaces of a plain glass fiber fabric is used. Since this film material 18 can ensure visible light transmittance (transmittance of light in the visible light region) of 10 to 20% and haze value (ratio of diffuse transmitted light to total light transmitted light) 80%, the semi-underground road 1 The sunlight that is inserted from the upper opening 5 that is continuously arranged in the longitudinal direction can be taken as uniform light without flickering. As shown in the table below, according to the film material having a configuration other than the above-described film material, a predetermined range of transmittance can be covered. Note that when a film material having a visible light transmittance of 5 to 50% and a haze value of 80% or less is used, the ratio of diffusely transmitted light to total light transmitted light is low. About light, it becomes difficult to light uniform light. In addition, when a film material with a visible light transmittance of less than 5% is used even if the haze value is 80% or more, the interior space becomes totally dark even during the day, and the interior lighting is not turned on. May have an impact. Furthermore, when a film material having a haze value of 80% or more and a visible light transmittance of 50% or more is used, it may be possible that uniform sunlight cannot be obtained depending on incident sunlight.

  In this embodiment, a titanium oxide photocatalyst is applied to the surface of the film material 18. Thus, the exhaust gas can be purified by removing nitrogen oxides in the exhaust gas while the exhaust gas is in contact with the film surface. Alternatively, the film material 18 may be configured by coating glass fibers with a material containing titanium oxide photocatalyst particles in an ethylene tetrafluoride resin.

  Hereinafter, the function of the daylighting panel 10 installed on the top plate will be described with reference to FIG. In the second roof portion 10B of the daylighting panel 10, the processing radius of the center longitudinal member 16B is set larger than the processing radius of the longitudinal members 16A on both sides. For this reason, in the state in which the film material 18 is stretched, as shown in FIG. 4, the center position 10C is slightly higher, and the curved surface shape has a gentle slope toward both sides. Because of such a curved surface shape, for example, when it rains, rainwater flows on the membrane surface toward the lowest position of the second roof portion 10B as indicated by an arrow. A rainwater collecting mass 21 is installed outside the membrane material 18 at the lowest position. Rainwater that has flowed into the catchment mass 21 is led to a road gutter (not shown) through a vertical gutter 24 attached to a part of the central separation partition wall via a short gutter 22 and a horizontal gutter 23 on the top plate 2. Drained. In addition, during snowfall where snow is piled on the daylighting panel 10, the snow mass temporarily accumulates on the second roof portion 10B. Can be prevented.

  If the position surrounded by the horizontal member 17a at the front end 11 of the first roof portion 10A, the horizontal member 17b at the rear end 13 of the daylighting panel 10 located in front and the column is the inter-panel opening 30, the first roof portion Comparing the virtual opening 31 surrounded by the front end 11 of 10A and the rear end 13 of the daylighting panel 10 positioned in the front, the area of the virtual opening 31 is larger than the inter-panel opening 30. For this reason, when providing the part which protruded from the support | pillar to the 1st roof part 10A (when the overlap of both panel edge parts is provided), while preventing the direct incident light while reducing the overlap (overlap) of the panel, The amount of ventilation (ventilation) between the upper opening and the opening between the panels can be secured.

  In addition, this invention is not limited to the Example mentioned above, A various change within the range shown to each claim is possible. In other words, embodiments obtained by combining technical means appropriately changed within the scope of the claims are also included in the technical scope of the present invention.

1 Semi-underground structure road facility (semi-underground road)
2 Top plate 5 Upper opening 10 Daylighting panel 12, 14 Post 16 (16A, 16B) Longitudinal material 17 Horizontal material 18 Film material 30 Inter-panel opening 31 Virtual opening

Claims (3)

An upper lighting structure that covers an upper opening formed continuously in the longitudinal direction with a predetermined interval on the top plate of the semi-underground structure facility,
A curved surface that is erected on the top plate near the upper opening and has a height that can secure a predetermined ventilation space above the upper opening, and one end of the curved surface is supported by protruding from the column by a predetermined length. A lighting panel in which a film material is stretched on the frame is installed on the top plate continuously in the longitudinal direction so that a film portion protruding from the support column has a predetermined overlap between the adjacent lighting panels. An upper daylighting structure for a semi-underground structure facility, wherein the upper opening is covered and external light is uniformly incident from the upper opening.   2. The upper daylighting structure for a semi-underground structure facility according to claim 1, wherein the film material is made of a film material having a visible light transmittance of 5 to 50% and a haze value of 80% or more.   The upper lighting structure of the semi-underground structure facility according to claim 1, wherein a titanium oxide photocatalyst layer is formed on the surface of the film material.

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