CN110847376A - Large-span roofing system that circle bamboo constitutes - Google Patents

Large-span roofing system that circle bamboo constitutes Download PDF

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Publication number
CN110847376A
CN110847376A CN201911172751.0A CN201911172751A CN110847376A CN 110847376 A CN110847376 A CN 110847376A CN 201911172751 A CN201911172751 A CN 201911172751A CN 110847376 A CN110847376 A CN 110847376A
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round bamboo
round
bamboo
row
main beam
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CN110847376B (en
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郝际平
申国臣
靳贝贝
田黎敏
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/342Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/34Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
    • E04B1/3416Structures comprising mainly a central support column and a cantilevered roof
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/292Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being wood and metal
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/36Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The invention discloses a large-span roof system formed by round bamboos, which comprises a bamboo plywood, a first row of round bamboo upright columns, a second row of round bamboo upright columns, a first connecting round bamboo, a second connecting round bamboo, a plurality of main beam round bamboos and a plurality of secondary beam round bamboos, wherein the span of the roof system is larger.

Description

Large-span roofing system that circle bamboo constitutes
Technical Field
The invention relates to a roof system, in particular to a large-span roof system formed by round bamboos.
Background
At present, most of the building materials used in the building construction in China are still traditional building materials, and the building materials are building material products which cannot be continuously developed no matter the resources and energy consumption, the land destruction and the environmental pollution are considered. Bamboo has the characteristics of easy propagation, fast growth, early lumber formation, high yield and the like, so more and more original bamboo buildings appear, however, in the existing bamboo buildings, the flexibility of the middle span of an accessible roof (the structure is similar to that of a bamboo raft) formed by densely paving round bamboo in a single layer is too large after load is applied, the span can only reach 3m at most, and a large-span roof system cannot be formed, so the popularization and the application of the bamboo building are seriously influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a large-span roof system formed by round bamboos, and the span of the roof system is large.
In order to achieve the purpose, the large-span roof system formed by the round bamboos comprises bamboo plywood, a first row of round bamboo upright posts, a second row of round bamboo upright posts, a first connecting round bamboo, a second connecting round bamboo, a plurality of main beam round bamboos and a plurality of secondary beam round bamboos;
a first row of round bamboo upright posts and a second row of round bamboo upright posts are arranged between the first row of round bamboo upright posts and the second row of round bamboo upright posts, wherein the upper end of each round bamboo upright post in the first row of round bamboo upright posts is fixed on the first connecting round bamboo, the upper end of each round bamboo upright post in the second row of round bamboo upright posts is fixed on the second connecting round bamboo, a plurality of first special-shaped square timbers are arranged on the first connecting round bamboo along the axial direction, a plurality of second special-shaped square timbers are arranged on the second connecting round bamboo along the axial direction, the first special-shaped square wood corresponds to a second special-shaped square wood and a main beam round bamboo, wherein one end of each main beam round bamboo is fixed on the corresponding first special-shaped square wood, the other end of each main beam round bamboo is fixed on the corresponding second special-shaped square wood, the upper end of each round bamboo upright post in the first row of round bamboo upright posts is fixed on the main beam round bamboo at the front side, and the upper end of each round bamboo upright post in the second row of round bamboo upright posts is fixed on the main beam round bamboo at the rear side;
a plurality of third differential square timbers are fixed on each main beam round bamboo, wherein one secondary beam round bamboo corresponds to one third differential square timbers on each main beam round bamboo, each secondary beam round bamboo is fixed on the corresponding third differential square timbers on each main beam round bamboo, and a bamboo plywood is fixed on each secondary beam round bamboo;
and a guy cable is hung on each main beam round bamboo.
The upper end of each round bamboo upright column in the first row of round bamboo upright columns is of a fish mouth-shaped structure matched with the outer wall surface of the first connecting round bamboo;
the upper end of each round bamboo upright post in the second row of round bamboo upright posts is of a fish mouth-shaped structure matched with the outer wall surface of the second connecting round bamboo;
the upper end of each round bamboo upright post in the first row of round bamboo upright posts is of a fish mouth-shaped structure matched with the outer wall surface of the round bamboo of the foremost main beam;
the upper end of each round bamboo upright post in the second row of round bamboo upright posts is of a fish mouth-shaped structure matched with the outer wall surface of the round bamboo of the main beam at the last side.
The lower end surface of the first special-shaped square timber is in a fish mouth-shaped structure matched with the outer wall surface of the first connecting round bamboo;
the upper end surface of the first special-shaped square timber is of a fish mouth-shaped structure matched with the outer wall surface of the round bamboo of the corresponding main beam;
the lower end face of the second special-shaped square timber is of a fish mouth-shaped structure matched with the outer wall face of the second connecting round bamboo;
the upper end surface of the second special-shaped square timber is of a fish mouth-shaped structure matched with the outer wall surface of the round bamboo of the corresponding main beam;
the lower end surface of the third special-shaped square wood is of a fish mouth-shaped structure matched with the outer wall surface of the round bamboo of the main beam;
the upper end surface of the third special-shaped square timber is of a fish mouth-shaped structure matched with the outer wall surface of the corresponding secondary beam round bamboo.
All be connected through first bolt and first screw rod between each circle bamboo stand in the first circle bamboo stand and the first connection circle bamboo, wherein, the lower extreme of first screw rod inserts in corresponding circle bamboo stand, and the upper end of first screw rod passes first connection circle bamboo after stretching out outside corresponding circle bamboo stand and has cup jointed first nut again, and the lower extreme of first screw rod is provided with first ring, and first bolt passes corresponding circle bamboo stand and first ring.
All be connected through second bolt and second screw rod between each circle bamboo stand in the second row circle bamboo stand and the second connection circle bamboo, wherein, the lower extreme of second screw rod inserts in corresponding circle bamboo stand, and the upper end of second screw rod passes the second after stretching out outside corresponding circle bamboo stand and connects the circle bamboo and has cup jointed the second nut again, and the lower extreme of second screw rod is provided with the second ring, and the second bolt passes corresponding circle bamboo stand and second ring.
Each round bamboo stand column in the first row of round bamboo stand columns is connected with the foremost main beam round bamboo through a third bolt and a third screw rod, wherein the lower end of the third screw rod is inserted into the corresponding round bamboo stand column, the upper end of the third screw rod extends out of the corresponding round bamboo stand column and then penetrates through the foremost main beam round bamboo and then is sleeved with a third nut, a third ring is arranged at the lower end of the third screw rod, and the third bolt penetrates through the corresponding round bamboo stand column and the third ring.
Each round bamboo stand column in the second row of round bamboo stand columns is connected with the girder round bamboo on the last side through a fourth bolt and a fourth screw rod, wherein the lower end of the fourth screw rod is inserted into the corresponding round bamboo stand column, the upper end of the fourth screw rod extends out of the corresponding round bamboo stand column and then penetrates through the girder round bamboo on the last side, a fourth nut is sleeved on the upper end of the fourth screw rod, a fourth ring is arranged at the lower end of the fourth screw rod, and the fourth bolt penetrates through the corresponding round bamboo stand column and the fourth ring.
The girder circle bamboo is sleeved with a plurality of hoops, except for two hoops on the outermost side, the bottoms of other hoops are fixed with supporting rods, the lower ends of the supporting rods are provided with forged steel ball nodes, wherein one end of the steel cable is fixed on the hoops on the outermost side, and the other end of the steel cable penetrates through the forged steel ball nodes of the lower ends of the supporting rods in sequence and then is fixed on the hoops on the other outermost side.
The hoop on the outermost side comprises two lug plates and two semicircular steel pipes, wherein the two semicircular steel pipes are buckled on the girder round bamboo, the two lug plates are buckled on the two semicircular steel pipes respectively, the first fixing bolt penetrates through the two lug plates and the two semicircular steel pipes, and the second fixing bolt penetrates through the two semicircular steel pipes and the girder round bamboo.
The invention has the following beneficial effects:
when the large-span roof system formed by the round bamboos is specifically operated, the large span of the roof is realized by adopting a system that double-layer round bamboos form primary and secondary beams and a steel cable is added on a main beam, specifically, a plurality of third different square timbers are fixed on each main beam round bamboo, wherein one secondary beam round bamboo corresponds to one third different square timbers on each main beam round bamboo, each secondary beam round bamboo is fixed on the corresponding third different square timbers on each main beam round bamboo, a bamboo plywood is fixed on each secondary beam round bamboo, and a stay cable is hung on each main beam round bamboo.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a diagram showing the connection relationship between the main beam round bamboo 5 and the steel cable 12;
FIG. 3 is a schematic structural view of a ferrule 9 according to the present invention;
fig. 4 is a diagram showing a connection relationship between the first screw 17 and the first bolt 18 according to the present invention.
Wherein, 1 is the first row of circle bamboo stand, 2 is the bamboo plywood, 3 is the secondary beam circle bamboo, 4 is the second and connects the circle bamboo, 5 is the girder circle bamboo, 6 is first dysmorphism square timber, 7 is the third special-shaped square timber, 8 is the first line circle bamboo stand, 9 is the ferrule, 10 is the second fixing bolt, 11 is first fixing bolt, 12 is the cable wire, 13 is the vaulting pole, 14 is forged steel ball node, 15 is the otic placode, 16 is semi-circular steel pipe, 17 is first screw rod, 18 is first bolt, 19 is first connection circle bamboo.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the large-span roof system formed by round bamboos comprises a bamboo plywood 2, a first row of round bamboo columns 1, a second row of round bamboo columns, a first connecting round bamboo 19, a second connecting round bamboo 4, a plurality of main beam round bamboos 5 and a plurality of secondary beam round bamboos 3; a first row of round bamboo upright posts 8 and a second row of round bamboo upright posts are arranged between the first row of round bamboo upright posts 1 and the second row of round bamboo upright posts, wherein the upper ends of the round bamboo upright posts in the first row of round bamboo upright posts 1 are all fixed on a first connecting round bamboo 19, the upper ends of the round bamboo upright posts in the second row of round bamboo upright posts are all fixed on a second connecting round bamboo 4, a plurality of first special-shaped square timbers 6 are axially arranged on the first connecting round bamboo 19, a plurality of second special-shaped square timbers are axially arranged on the second connecting round bamboo 4, wherein one first special-shaped square timbers 6 corresponds to one second special-shaped square timbers and one main beam round bamboo 5, one end of each main beam round bamboo 5 is fixed on the corresponding first special-shaped square timbers 6, the other end of each main beam round bamboo 5 is fixed on the corresponding second special-shaped square timbers, the upper ends of the round bamboo upright posts in the first row of round bamboo upright posts 8 are all fixed on, the upper ends of all the round bamboo columns in the second row of round bamboo columns are fixed on the last main beam round bamboo 5; a plurality of third different-shaped square timbers 7 are fixed on each main beam round bamboo 5, wherein one secondary beam round bamboo 3 corresponds to one third different-shaped square timbers 7 on each main beam round bamboo 5, each secondary beam round bamboo 3 is fixed on the corresponding third different-shaped square timbers 7 on each main beam round bamboo 5, and the bamboo plywood 2 is fixed on each beam round bamboo 3; and a guy cable is hung on each main beam round bamboo 5.
Specifically, the upper end of each round bamboo upright column in the first row of round bamboo upright columns 1 is of a fish mouth-shaped structure matched with the outer wall surface of the first connecting round bamboo 19; the upper end of each round bamboo upright post in the second row of round bamboo upright posts is of a fish mouth-shaped structure matched with the outer wall surface of the second connecting round bamboo; the upper end of each round bamboo upright post in the first row of round bamboo upright posts 8 is of a fish mouth-shaped structure matched with the outer wall surface of the front main beam round bamboo 5; the upper end of each round bamboo upright post in the second row of round bamboo upright posts is of a fish mouth-shaped structure matched with the outer wall surface of the round bamboo of the main beam at the last side; the lower end surface of the first special-shaped square timber 6 is in a fish mouth-shaped structure matched with the outer wall surface of the first connecting round bamboo 19; the upper end surface of the first special-shaped square timber 6 is of a fish mouth-shaped structure matched with the outer wall surface of the corresponding main beam round bamboo 5; the lower end surface of the second special-shaped square timber is of a fish mouth-shaped structure matched with the outer wall surface of the second connecting round bamboo 4; the upper end surface of the second special-shaped square timber is of a fish mouth-shaped structure matched with the outer wall surface of the corresponding main beam round bamboo 5; the lower end surface of the third special-shaped square wood 7 is of a fish mouth-shaped structure matched with the outer wall surface of the main beam round bamboo 5; the upper end surface of the third special-shaped square wood 7 is of a fish mouth-shaped structure matched with the outer wall surface of the corresponding secondary beam round bamboo 3.
Referring to fig. 4, each round bamboo column in the first row of round bamboo columns 1 is connected with a first connecting round bamboo 19 through a first bolt 18 and a first screw rod 17, wherein the lower end of the first screw rod 17 is inserted into the corresponding round bamboo column, the upper end of the first screw rod 17 extends out of the corresponding round bamboo column and then penetrates through the first connecting round bamboo 19 to be sleeved with a first nut, the lower end of the first screw rod 17 is provided with a first ring, and the first bolt 18 penetrates through the corresponding round bamboo column and the first ring. All be connected through second bolt and second screw rod between each circle bamboo stand in the circle bamboo stand is connected to the second between 4 to the circle bamboo in the second row, wherein, the lower extreme of second screw rod inserts in corresponding circle bamboo stand, and the upper end of second screw rod passes second connection circle bamboo 4 after stretching out outside corresponding circle bamboo stand and has cup jointed the second nut again, and the lower extreme of second screw rod is provided with the second ring, and the second bolt passes corresponding circle bamboo stand and second ring. Each round bamboo stand in the first row of round bamboo stands 8 is connected with the girder round bamboo 5 at the foremost side through a third bolt and a third screw rod, wherein, the lower extreme of the third screw rod is inserted in the corresponding round bamboo stand, the upper end of the third screw rod stretches out of the corresponding round bamboo stand and then passes through the girder round bamboo 5 at the foremost side and then is sleeved with a third nut, the lower end of the third screw rod is provided with a third ring, and the third bolt passes through the corresponding round bamboo stand and the third ring. Each round bamboo stand column in the second row of round bamboo stand columns is connected with the girder round bamboo 5 at the rear side through a fourth bolt and a fourth screw rod, wherein the lower end of the fourth screw rod is inserted into the corresponding round bamboo stand column, the upper end of the fourth screw rod extends out of the corresponding round bamboo stand column and then penetrates through the girder round bamboo 5 at the rear side, a fourth nut is sleeved on the upper end of the fourth screw rod, a fourth ring is arranged at the lower end of the fourth screw rod, and the fourth bolt penetrates through the corresponding round bamboo stand column and the fourth ring.
Referring to fig. 2 and 3, a plurality of hoops 9 are sleeved on a main beam round bamboo 5, except for two hoops 9 on the outermost side, a stay 13 is fixed at the bottom of each of the hoops 9, a forged steel ball joint 14 is arranged at the lower end of the stay 13, wherein one end of a steel cable 12 is fixed on one hoop 9 on the outermost side, the other end of the steel cable 12 sequentially penetrates through the forged steel ball joint 14 at the lower end of each stay 13 and then is fixed on the other hoop 9 on the outermost side, wherein the hoop 9 on the outermost side comprises two ear plates 15 and two semicircular steel pipes 16, wherein the two semicircular steel pipes 16 are buckled on the main beam round bamboo 5, the two ear plates 15 are buckled on the two semicircular steel pipes 16 respectively, a first fixing bolt 11 penetrates through the two ear plates 15 and the two semicircular steel pipes 16, and a second fixing bolt 10 penetrates through the two semicircular steel pipes 16 and the main beam round bamboo 5.
In the connection positions between the bamboo plywood 2 and each secondary beam round bamboo 3, the first row, the second row, the first line and the second line are connected through connecting bolts, and the positions are connected through steel needles;
the first special-shaped square wood 6 is connected with the first connecting round bamboo 19 and the main beam round bamboo 5, the second special-shaped square wood is connected with the second connecting round bamboo 4 and the main beam round bamboo 5, and the third special-shaped square wood 7 in the first row and the second row is connected with the corresponding main beam round bamboo 5 and the secondary beam round bamboo 3 through connecting bolts; except the connecting positions between the third deformed square wood 7 in the first row and the second row and the corresponding main beam round bamboo 5 and the secondary beam round bamboo 3, the other positions are connected through steel needles.
The invention adopts the staggered distribution of the primary and secondary beams, and the reasons are as follows: the crossed point of the two orthogonal round bamboos is positioned at the corner, if the two orthogonal round bamboos are connected by adopting the right angle of the same plane, the bearing capacity of the round bamboos in two directions at the crossed point can be reduced, so that the right angle crossed point of the two orthogonal original bamboos is not suitable for plane connection.
The reasons for the connection of the special-shaped square timber are as follows: through special-shaped square timber, the contact area between the square timber and the round bamboo can be effectively increased, and then better stress is achieved.
In addition, in order to improve the bearing capacity of the main beam round bamboo 5, a steel cable 12 and a stay bar 13 are arranged on the main beam round bamboo 5, the force at two ends of the main beam round bamboo 5 is transmitted to the foundation through the first connecting round bamboo 19, the second connecting round bamboo 4 and each round bamboo upright post, and the pressure in the middle of the main beam round bamboo 5 is transmitted to the steel cable 12 with strong tensile capacity through the stay bar 13.
The specific force transmission path is as follows:
bamboo plywood 2-the both ends of secondary beam circle bamboo 3-each secondary beam circle bamboo 3-the circle bamboo stand-the basis.
Bamboo plywood 2-middle part of secondary beam circle bamboo 3-main beam circle bamboo 5 (vertical concentration force at two ends) -first connection circle bamboo 19 and second connection circle bamboo 4-circle bamboo stand column-foundation.
Bamboo plywood 2-the middle part of the round bamboo 3 of the secondary beam-the middle part (pressure) of the round bamboo 5 of the main beam-the steel cable 12 (tension).

Claims (9)

1. A large-span roof system formed by round bamboos is characterized by comprising bamboo plywood (2), a first row of round bamboo upright posts (1), a second row of round bamboo upright posts, a first connecting round bamboo (19), a second connecting round bamboo (4), a plurality of main beam round bamboos (5) and a plurality of secondary beam round bamboos (3);
a first row of round bamboo columns (8) and a second row of round bamboo columns are arranged between the first row of round bamboo columns (1) and the second row of round bamboo columns, wherein the upper ends of the round bamboo columns in the first row of round bamboo columns (1) are all fixed on a first connecting round bamboo (19), the upper ends of the round bamboo columns in the second row of round bamboo columns are all fixed on a second connecting round bamboo (4), a plurality of first special-shaped square timbers (6) are axially arranged on the first connecting round bamboo (19), a plurality of second special-shaped square timbers are axially arranged on the second connecting round bamboo (4), one first special-shaped square timbers (6) corresponds to one second special-shaped square timbers and one girder round bamboo (5), wherein one end of each girder round bamboo (5) is fixed on the corresponding first special-shaped square timbers (6), the other end of each round bamboo (5) is fixed on the corresponding second special-shaped square timbers, the upper ends of the round bamboo columns in the first row of round bamboo columns (8) are all fixed on the round bamboo (5) at the frontmost side, the upper ends of all the round bamboo columns in the second row of round bamboo columns are fixed on the last main beam round bamboo (5);
a plurality of third different square timbers (7) are fixed on each main beam round bamboo (5), wherein one secondary beam round bamboo (3) corresponds to one third different square timbers (7) on each main beam round bamboo (5), each secondary beam round bamboo (3) is fixed on the corresponding third different square timbers (7) on each main beam round bamboo (5), and the bamboo plywood (2) is fixed on each secondary beam round bamboo (3);
the round bamboo (5) of each main beam is hung with a guy cable.
2. The large-span roof system made of round bamboos as claimed in claim 1, wherein the upper end of each round bamboo upright column in the first row of round bamboo upright columns (1) is in a fish mouth-shaped structure matched with the outer wall surface of the first connecting round bamboo (19);
the upper end of each round bamboo upright post in the second row of round bamboo upright posts is of a fish mouth-shaped structure matched with the outer wall surface of the second connecting round bamboo;
the upper end of each round bamboo upright post in the first row of round bamboo upright posts (8) is of a fish mouth-shaped structure matched with the outer wall surface of the front girder round bamboo (5);
the upper end of each round bamboo upright post in the second row of round bamboo upright posts is of a fish mouth-shaped structure matched with the outer wall surface of the round bamboo of the main beam at the last side.
3. The large-span roof system made of round bamboos as claimed in claim 1, wherein the lower end face of the first special-shaped square wood (6) is in a fish mouth-shaped structure matched with the outer wall face of the first connecting round bamboo (19);
the upper end surface of the first special-shaped square timber (6) is of a fish mouth-shaped structure matched with the outer wall surface of the corresponding main beam round bamboo (5);
the lower end surface of the second special-shaped square timber is of a fish mouth-shaped structure matched with the outer wall surface of the second connecting round bamboo (4);
the upper end surface of the second special-shaped square timber is of a fish mouth-shaped structure matched with the outer wall surface of the corresponding main beam round bamboo (5);
the lower end surface of the third special-shaped square wood (7) is of a fish mouth-shaped structure matched with the outer wall surface of the main beam round bamboo (5);
the upper end surface of the third special-shaped square wood (7) is of a fish mouth-shaped structure matched with the outer wall surface of the corresponding secondary beam round bamboo (3).
4. The large-span roof system formed by round bamboos as claimed in claim 1, wherein each round bamboo upright column in the first row of round bamboo upright columns (1) is connected with the first connecting round bamboo (19) through a first bolt (18) and a first screw (17), wherein the lower end of the first screw (17) is inserted into the corresponding round bamboo upright column, the upper end of the first screw (17) extends out of the corresponding round bamboo upright column and then penetrates through the first connecting round bamboo (19) and then is sleeved with a first nut, the lower end of the first screw (17) is provided with a first circular ring, and the first bolt (18) penetrates through the corresponding round bamboo upright column and the first circular ring.
5. The large-span roof system formed by the round bamboos according to claim 4, wherein each round bamboo upright column in the second row of round bamboo upright columns is connected with the second connecting round bamboo (4) through a second bolt and a second screw rod, wherein the lower end of the second screw rod is inserted into the corresponding round bamboo upright column, the upper end of the second screw rod extends out of the corresponding round bamboo upright column, penetrates through the second connecting round bamboo (4), is sleeved with a second nut, the lower end of the second screw rod is provided with a second circular ring, and the second bolt penetrates through the corresponding round bamboo upright column and the second circular ring.
6. The large-span roof system formed by round bamboos as claimed in claim 5, wherein each round bamboo upright column in the first row of round bamboo upright columns (8) is connected with the foremost main beam round bamboo (5) through a third bolt and a third screw rod, wherein the lower end of the third screw rod is inserted into the corresponding round bamboo upright column, the upper end of the third screw rod extends out of the corresponding round bamboo upright column and then penetrates through the foremost main beam round bamboo (5) and then is sleeved with a third nut, the lower end of the third screw rod is provided with a third ring, and the third bolt penetrates through the corresponding round bamboo upright column and the third ring.
7. The large-span roof system formed by round bamboos as claimed in claim 6, wherein each round bamboo upright in the second row of round bamboo uprights is connected with the rearmost main beam round bamboo (5) through a fourth bolt and a fourth screw, wherein the lower end of the fourth screw is inserted into the corresponding round bamboo upright, the upper end of the fourth screw extends out of the corresponding round bamboo upright and then penetrates through the rearmost main beam round bamboo (5) to be sleeved with a fourth nut, the lower end of the fourth screw is provided with a fourth ring, and the fourth bolt penetrates through the corresponding round bamboo upright and the fourth ring.
8. The large-span roof system formed by round bamboos as claimed in claim 1, wherein a plurality of hoops (9) are sleeved on the main beam round bamboo (5), except for the two outermost hoops (9), the bottoms of the other hoops (9) are all fixed with stay bars (13), the lower ends of the stay bars (13) are provided with forged steel ball joints (14), wherein one end of a steel cable (12) is fixed on one outermost hoop (9), and the other end of the steel cable (12) sequentially penetrates through the forged steel ball joints (14) at the lower end of each stay bar (13) and then is fixed on the other outermost hoop (9).
9. The large-span roof system made of round bamboos as claimed in claim 8, wherein the outermost hoop (9) comprises two ear plates (15) and two semicircular steel pipes (16), wherein the two semicircular steel pipes (16) are fastened to the main beam round bamboo (5), the two ear plates (15) are respectively fastened to the two semicircular steel pipes (16), the first fixing bolt (11) penetrates through the two ear plates (15) and the two semicircular steel pipes (16), and the second fixing bolt (10) penetrates through the two semicircular steel pipes (16) and the main beam round bamboo (5).
CN201911172751.0A 2019-11-26 2019-11-26 Large-span roofing system that circle bamboo constitutes Active CN110847376B (en)

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CN206256585U (en) * 2016-12-07 2017-06-16 北京善筑科技股份有限公司 Assembled composite floor
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CN108643121A (en) * 2018-06-09 2018-10-12 中交航局第工程有限公司 A kind of frame-type construction bracket and its building technology
CN209066740U (en) * 2018-10-29 2019-07-05 南通市新空间幕墙材料制造有限公司 A kind of aluminium sheet roofing installation node component structure

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