JP4287784B2 - Hut structure - Google Patents

Description

  The present invention relates to a roof structure capable of shortening the construction period and stabilizing the quality by standardizing and saving labor in design, production, distribution and construction, and reducing the construction cost.

  The shape of the roof is a major factor in the overall design of the building. Therefore, with the diversification of needs for external appearances and the sophistication of the required level, buildings with variously changed roof shapes such as partially high roofs have been constructed.

  In addition, the Building Standard Law stipulates various oblique line restrictions on the height of buildings, such as north-side oblique line restrictions and road oblique line restrictions in the first and second types of low-rise residential areas and middle-high residential areas. Therefore, within the scope of these laws and regulations, many efforts have been made to secure a clear space by increasing the ceiling height by building a roof that is not subject to slanting restrictions and increasing the interior space of the building upward. ing.

  From such a situation, many roof-shaped buildings including a general roof part and a high roof part higher than the general roof part are designed, and a roof structure according to the roof shape is individually designed and constructed. Yes. In addition, since this kind of roof structure is related to the design content of a building, there is no prior art document information to be described.

  However, in the conventional roof structure, as shown in FIG. 18, the eaves spar b1 of the general roof part a1 and the eaves g2 of the high roof part a2 higher than the general roof part a1 have a height. Different. Therefore, the column c2 for mounting the eaves beam b2 is formed to have a longer dimension than the column c1 for mounting the eaves beam b1, so that two types of columns c1 and c2 are designed, produced, and the produced column members are in stock. It is necessary to manage this and perform construction work. As a result, the series of operations and the man-hours and costs required for their management increase, and troubles such as unsent and erroneous sending occur, leading to a prolonged construction period.

  Moreover, in recent construction that has been industrialized, the outer wall is often constructed using an outer wall panel that has been factory-processed and processed in advance, such as a PC panel. At this time, since the types of outer wall panels are increased in addition to the pillar members, the number of man-hours for design, production, management, etc. is increased, further increasing the cost and prolonging the construction period.

  Further, the column c2 arranged at the boundary between the general roof portion a1 and the high roof portion a2 has a large bending force acting on the joint portion of the eaves beam b1 when a horizontal load is applied due to an earthquake, a wind load or the like. This is a disadvantageous structure in terms of strength. For this reason, the column c2 disposed at the location requires reinforcement such as increasing the section modulus, and the number of types of members is further increased, resulting in an increase in man-hours and an increase in cost.

  The present invention eliminates the problems of the above-mentioned roof structure, and in a roof structure including a general roof part and a high roof part higher than the general roof part, the eaves girder in the general roof part and the high roof part Are placed at the same height, and by reducing the number of parts used and standardizing, man-hours and costs for design, production, construction, construction management, etc. are reduced, and the structure is simplified for earthquake resistance. The problem is to provide an excellent roof structure.

  In order to achieve the object, the invention according to claim 1 is a roof structure including a general roof portion and a high roof portion higher than the general roof portion, spanned between upper ends of columns, and An eaves girder arranged at the same height in the roof portion and the high roof portion, and a shed bundle, and in the high roof portion, between the eave bundle erected on the eaves girder and the upper end of the eave bundle A climbing beam-shaped member is constructed between the upper end of the eaves purlin or the eaves bundle and the upper end of the shed bundle.

  In addition, the said climbing beam-like member is a long member arranged in an inclined state in the shed structure, and includes the climbing beam and the climbing purlin.

  The invention according to claim 2 is characterized in that a brace body is provided inside a rectangular portion formed by being surrounded by the eaves girder, the eaves bundle, and the eaves purlin. Structure.

  In the invention according to claim 1, since the eaves girder is arranged at the same height in the general roof portion and the high roof portion, the pillars that span the eaves girder at the upper end can be unified to the same length. Standardization of the members to be used including the outer wall panel attached to the panel is promoted, and a series of work man-hours such as design, member production, member logistics management, integration and construction management can be reduced. As a result, the construction period can be shortened, the overall construction cost can be reduced, and the overall quality including construction can be improved. Moreover, since the structure below the eaves girder can be simplified through the general roof portion and the high roof portion, the seismic strength and the wind strength are improved.

  Further, in the high roof portion, an eave bundle standing on the eaves girder and an eaves main building spanned between the upper ends of the eave bundle are provided, and the upper end of the eaves main building or the eave bundle and the shed bundle As the climbing beam-like member is installed between the top of the roof, it is possible to easily build a high roof part of any height by changing the height type of the eaves bundle, and as a result, the design freedom is expanded. Can do.

  Moreover, like the invention which concerns on Claim 2, the horizontal proof stress of a high roof part is strengthened by providing a brace body inside the rectangular part formed surrounded by the eaves girder, eaves bundle, and eaves purlin. Therefore, reinforcement according to the height can be easily performed. As a result, the overall structure of the hut is streamlined, improving workability and reducing construction costs.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, a hut assembly structure 1 in the residential building A (hereinafter simply referred to as “building A”) shown in FIGS. 1 to 4 is illustrated, FIG. 1 is a south elevation of the building A, and FIG. FIG. 3 is an elevation view of the north side, and FIG. 4 is an elevation view of the west side. FIGS. 5 to 9 and FIGS. 10 to 13 are axial group diagrams of X1 to 5 and Y1 to 4 shown by the alternate long and short dash lines shown in FIGS. Further, FIG. 14 is a roof beam profile of the building A, and FIG. 15 is a cabin profile.

  The roof structure 1 of the present invention includes a general roof portion R1 formed at a standard height and a high roof portion R2 formed higher than the general roof portion R1, and an eaves girder 4 and a roof bundle 6 The high roof portion R <b> 2 includes an eaves bundle 7 and an eaves purlin 8 spanned between the upper ends of the eaves bundle 7.

  Further, in this embodiment, the building A is a two-storied house as shown in FIG. 1, and its frame structure is between a plurality of pillars 2 and the pillars 2 as shown in FIG. 7. FIG. 2 illustrates a structure including a floor beam F on the second floor and a hut assembly structure 1 that are horizontally spanned.

  The said general roof part R1 is constructed | assembled in the said building A as a roof part of the area | region formed in the standard floor height of about 2.3-2.7 m, for example. Moreover, the shape is formed in various ways, such as a gable, a ridge, a flat, a single flow, and has a one-way shape in this form.

  The high roof portion R2 is formed continuously with the general roof portion R1, and is constructed as a roof portion in a region in which, for example, a ceiling height on the top floor is formed as high as about 2.5 to 4 m in order to create a spacious interior space. And about 0.5-2.0 m higher than general roof part R1 is formed. The high roof portion R2 of this embodiment has a one-way shape arranged symmetrically with the general roof portion R1. In addition, this high roof part R2 may be constructed | assembled as a roof part of the dwelling unit of a skip floor with the said general roof part R1. In this embodiment, as shown in FIG. 2, a fixed window 21 for daylighting is formed at the boundary between the high roof portion R2 and the general roof portion R1.

  The eaves girder 4 is a horizontal member disposed on the upper end of the outer wall 3 by being bridged between the upper ends of the pillars 2 and, in this embodiment, the through pillars 2a, and has a role of supporting the shed assembly members. The eaves girder 4 is provided in the upper part of the outer wall 3, and as shown in FIG. 14, it surrounds the building A and is arrange | positioned in the perimeter.

  Moreover, the eaves girder 4 arranged in the general roof portion R1 and the eaves girder 4 arranged in the high roof portion R2 are formed at the same height. That is, the height h1 of the eaves girder 4 arranged in the north-south direction X1 shown in FIG. 5 and the eaves girder 4 arranged in the general roof portion R1 in X5 shown in FIG. Equal to height h1. Similarly, the height h1 of the eaves girder 4 arranged in the high roof portion R2 through the Y1 street in the east-west direction shown in FIG. 10 is the same as that of the eaves girder 4 arranged in the general roof portion R1 through the Y4 street shown in FIG. Equal to height h1. In addition, in Y4 passage which passes along the north side outer wall surface which FIG. 13 shows, the state where the eaves girder 4 distribute | arranged by general roof part R1 and high roof part R2 is extended continuously horizontally is shown. Thus, since the eaves girder 4 spanned between the upper part of the pillar 2 is arrange | positioned in the same height in general roof part R1 and high roof part R2, the said pillar 2 can be made common in the same height.

  Moreover, the wall panel which is frequently used in industrialized construction and is constructed between the pillars 2 below the eaves girder 4 to construct the wall can be standardized with the same height. That is, as shown in FIG. 16, the wall panel 3P used for the outer wall 3 in the region of the general roof portion R1, and the wall panel 3P used for the outer wall 3 in the region of the high roof portion R2 as shown in FIG. Since both the eaves girders 4 are the same height, the panel member of the same height can be used. As a result, there are no further increases in the number of wall panel 3P varieties due to differences in height due to differences in width, presence / absence of openings, positions of openings, and the like. In this way, the main components such as pillars and wall panels are shared, so that the standardization of a series of processes such as the design and production of building components, the distribution and management of these components, and also the construction management is progressing. The construction period is shortened, the quality of members and construction is stabilized, and the cost can be reduced. In addition, the general roof portion R1 and the high roof portion R2 have a common structure for the main body of the building A, which is lower than the eaves girder 4, so that the structure is advantageous in terms of earthquake resistance and wind resistance, and the construction period and cost can be easily reduced. And In addition, as shown in FIG. 17, the eaves panel 3Pn is provided above the eaves girder 4 in the outer wall 3 of the high roof portion R2 region.

  The eaves girder 4 is bridged between the pillars 2 by using conventional fixing means such as fixing tools such as bolts and rivets, welding, and connecting hardware. Moreover, although the eaves girder 4 of this form is formed using the shape steel which makes a cross-sectional H shape, a timber, a laminated material, etc. can also be used.

  The eaves girder 4 erects an eaves bundle 7 thereon in the region of the high roof portion R2. The eaves bundle 7 has substantially the same height h2 as the difference between the height of the general roof portion R1 and the height of the high roof portion R2, and compensates for the height difference between the roof portions R1 and R2. The height h2 is formed to be, for example, about 500 to 2000 mm, and 1130 mm in this embodiment, depending on the height difference. As shown in FIGS. 5, 10, and 13, the eave bundle 7 is attached on the eaves beam 4 at a constant interval (module) of about 700 to 1500 mm, for example, 900 mm in this embodiment.

  The eaves bundle 7 is fixed on the eaves girder 4 by using a fixing means such as a fixing tool, welding, or a connecting hardware. Further, when it coincides with the position of the pillar 2, the eaves bundle 7 is arranged on the pillar 2 and fixed to both the eaves beam 4 and the pillar 2 by the fixing means. Moreover, although the eaves bundle 7 of this form is formed using a steel square tube, the cross-section H-shaped section steel, wood, a laminated material, etc. can also be used. Further, when formed of steel, a horizontal fixing plate is integrally provided at the lower end.

  As shown in FIGS. 5, 10, and 13, the eaves purlin 8 is bridged between the upper ends of the eaves bundle 7. The eaves main house 8 is arranged on the entire periphery of the eaves tip part in the region of the high roof part R2, and has a role of supporting the hut assembly member. The eaves purlin 8 is fixed to the eaves bundle 7 using the same fixing means as described above. However, as shown in FIG. 7 wins and the other eaves bundle 7 will be joined as 8 eaves main house wins. The eaves purlin 8 of this embodiment is formed with a section steel having an H-shaped cross section, but other cross section shape steel, composite material in which both sides of the core of the shape steel are sandwiched between trees, laminated wood, etc. It can also be used.

  By erecting the eaves bundle 7 on the eaves girder 4 and spanning the eaves purlin 8 between its upper ends, the eaves girder 4, the eaves bundle 7 and the eaves purlin 8 are surrounded as shown in FIG. A rectangular portion 10 is formed. Since this rectangular part 10 is arranged on the upper part of the building A, supports the high roof part R2, and is joined to the structure below the eaves girder 4 through the fixing means, seismic load, wind When a horizontal force such as a load is applied, the rigidity of the rectangular portion 10 may be insufficient. Therefore, in this embodiment, the brace body 11 is provided inside the rectangular portion 10 to reinforce the horizontal strength of the rectangular portion 10. The brace body 11 of the present example is composed of a pair of round steel braces 11a with turnbuckles arranged in an X shape diagonally. Thus, although the horizontal proof stress of the high roof part R2 mainly increases / decreases according to the height of the eaves bundle 7, etc., the required proof stress of the high roof part R2 having a different height for each building A is set to the rectangular part 10. Since it can be individually adjusted and reinforced by increasing or decreasing the number of brace bodies 11 and the maximum tensile strength, etc., it is possible to easily obtain a rational structure that ensures the required strength and is not wasteful, and therefore has high workability. A structure excellent in cost can be obtained.

  A roof beam 22 is bridged between the eaves beam 4 and the upper end of the pillar 2 as a beam material for supporting the roof structure. In this embodiment, as shown in FIG. 14 roof beam plan, a large number of roof beams 22 are provided in the east-west and north-south directions. A pair of round steel braces 23 with turnbuckles are arranged in an X shape between the roof beams 22 arranged in parallel, and the horizontal proof stress of the building A is enhanced.

  The shed bundle 6 is a bundle member that is mounted on the roof beam 22, the pillar 2, and the like, and has a role of supporting the purlin 5, the climbing beam member 9, and the like. Further, in this embodiment, as shown in FIGS. 6, 7, and 8, the shed bundle 6 is attached with a length suitable for the height of each position due to the roof gradient in the general roof portion R1 and the high roof portion R2. It is done.

  The purlin 5 is a horizontal rung attached to the shed bundle 6 and has a role of constituting a roof base (field) by supporting rafters.

  As described above, the climbing beam-like member 9 is a long member arranged in an inclined state in the roof structure, and includes climbing beams, climbing purlins, and the like. As shown in FIGS. 6, 7, and 15, the upper end of the climbing beam member 9 is attached to the shed bundle 6 in the high roof portion R <b> 2. The lower end of the climbing beam member 9 is attached to the eaves bundle 7 or the eaves purlin 8 at a location where the end of the eaves main house 8 is fixed to the side of the upper end of the eaves bundle 7 (indicated by a solid line circle in FIG. 15). In a place where the eaves bundle 7 supports the lower surface of the eaves main house 8 that extends continuously (indicated by a broken line circle in FIG. 15), the eaves main house 8 is attached. In addition, the climbing beam-like member 9 is bridged between the upper end of the eaves beam 4 or the pillar 2 and the upper end of the shed bundle 6 as shown in FIGS.

  In this way, in the high roof portion R2, the eaves purlin 5 is bridged between the upper ends of the eaves bundle 7 erected on the eaves girder 4, and the upper end of the eaves purlin 5 or the eaves bundle 7 and the upper end of the shed bundle 6 are provided. In between, the climbing beam-like member 9 is erected to form a cabin set. Therefore, by changing the height of the eaves 7, it is possible to easily construct a high roof with an arbitrary height. As a result, the design freedom of the building A is expanded and the maximum internal space within the range of laws and regulations is provided. Can be configured.

It is a south side elevational view of building A having the shed structure of the present invention. It is the east side elevation. It is the north side elevation. It is the west elevation. FIG. FIG. FIG. FIG. FIG. It is a Y1 through-axis group figure of an east side elevation. FIG. FIG. FIG. It is a roof beam plan of building A. It is the hut's figure. It is the elements on larger scale of the X5 through-axis group figure explaining the structure of a wall panel. It is the elements on larger scale of the X1 through-wheel assembly figure explaining the structure of a wall panel. It is a framework figure of a building explaining a conventional example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 hut structure 2 pillar 3 exterior wall 4 eaves 5 purlin 6 shed bunch 7 eaves bunch 8 eaves purlin 9 climbing beam-like member 10 rectangular part 11 brace body R1 general roof part R2 high roof part

Claims (2)

In the roof structure including a general roof portion and a high roof portion higher than the general roof portion,
An eaves girder spanned between the upper ends of the pillars and arranged at the same height in the general roof portion and the high roof portion, and a shed bundle,
In the high roof portion, the eaves bunch standing on the eaves girder, and the eaves purlin spanned between the upper ends of the eaves bundle,
A hut assembly structure in which a climbing beam-like member is constructed between the upper end of the eaves main house or eave bundle and the upper end of the shed bundle.   The shed assembly structure according to claim 1, wherein a brace body is provided inside a rectangular portion formed by being surrounded by the eaves girder, the eaves bundle, and the eaves purlin.

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