CN210134322U

CN210134322U - Bamboo arch structure of truss

Info

Publication number: CN210134322U
Application number: CN201920910418.4U
Authority: CN
Inventors: 邵长专; 罗智; 靳永志
Original assignee: Beijing Zhongzhu Culture Technology Co ltd
Current assignee: Beijing Zhongzhu Culture Technology Co ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-03-10
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a bamboo arch structure of truss belongs to the bearing structure field. Including chord member and the base of setting at the chord member both ends, the chord member comprises many round bamboos crisscross side by side, is equipped with the straight abdomen wooden pole that multiunit and chord member set up perpendicularly in the chord member, still is equipped with the oblique abdomen wooden pole that multiunit and chord member slope set up in the chord member, and straight abdomen wooden pole sets up with oblique abdomen wooden pole is crisscross, is equipped with connecting device between the bamboo end of adjacent round bamboo, the utility model discloses having concurrently and encircleing and truss structure's advantage, turning into axial pressure with the moment of flexure through the effect of encircleing, having increased the rigidity under the dead load effect, again through drawing empty into the truss with main arch structure, alleviateed the dead weight, improved material utilization and rateed to stability and connection reliability have been increased.

Description

Bamboo arch structure of truss

Technical Field

The utility model relates to a bearing structure field, concretely relates to truss bamboo arch structure.

Background

Arch bridges are a common form of bridge. In a large-span bridge, steel or reinforced concrete is generally adopted as a bridge building material. But as a pedestrian bridge or a landscape bridge with smaller span, wood can be used as a bridge building material. In the pedestrian arch bridge, an arched beam or a simply supported beam is generally adopted as a stress component, and a stone arch is also adopted as a stress system. If the steel material is used to construct the pedestrian arch bridge, the steel beams are required to be pre-curved according to design requirements or arched by assembling, which is disadvantageous to industrialized mass production and high maintenance cost. For the reinforced concrete pedestrian arch bridge, a formwork needs to be erected during construction, and the formwork needs to be disassembled after construction, so that the construction is complex, and the construction period is long.

SUMMERY OF THE UTILITY MODEL

The utility model provides a spread bamboo arch structure to prior art's not enough, concrete technical scheme as follows:

the utility model provides a truss bamboo arch structure, includes chord member and sets up the base at the chord member both ends, and the chord member comprises many root circles bamboo crisscross side by side, is equipped with the straight abdomen wooden pole that multiunit and chord member set up perpendicularly in the chord member, still is equipped with the oblique abdomen wooden pole that multiunit and chord member slope set up in the chord member, and straight abdomen wooden pole sets up with oblique abdomen wooden pole is crisscross, is equipped with connecting device between the bamboo end of adjacent root circles.

The utility model discloses to main atress characteristic, adopt many circle bamboos crisscross mode side by side to the great chord member of atress to satisfy the high strength demand of arched girder. The straight web wooden rod and the oblique web wooden rod which are relatively small in axial force adopt wooden plates, so that the contact surfaces of the chord members and the straight web wooden rod and the oblique web wooden rod are increased, the connection quality and the connection rigidity are effectively improved, and the connection reliability is increased.

Preferably, the connection means includes a connection rod provided in the bamboo end of the adjacent round bamboo and a grouting layer provided outside the connection rod.

Preferably, the two ends of the connecting rod are respectively arranged in the node membranes of the round bamboos, and the grouting layer is arranged between the node membranes of the adjacent round bamboos.

The utility model discloses a cooperation between connecting rod and the slip casting layer has improved the connection stability between the adjacent round bamboo end.

Preferably, a plurality of groups of oblique fixing screw rods are arranged in the chord member, and the oblique fixing screw rods sequentially penetrate through the round bamboos and are arranged in a staggered mode.

The utility model discloses a slant clamping screw who sets up in the chord member is in the same place multiunit circle bamboo slant fixed connection, has improved the connection stability between the circle bamboo.

Preferably, a plurality of groups of vertical fixing screw rods which sequentially penetrate through the round bamboos are arranged in the chord members.

The utility model discloses a vertical clamping screw who sets up in the chord member is in the same place the vertical fixed connection of multiunit circle bamboo, and cooperation slant clamping screw has further improved the connection stability between the circle bamboo.

Preferably, a transverse fixing screw is arranged between the round bamboo and the straight web wood rod, and a transverse fixing screw is also arranged between the round bamboo and the oblique web wood rod.

The utility model discloses a horizontal fixing screw who sets up between circle bamboo and straight abdomen wooden pole and between circle bamboo and oblique abdomen wooden pole has improved the connection stability between circle bamboo and the straight abdomen wooden pole and circle bamboo and oblique abdomen wooden pole.

Preferably, the straight-web wood pole and the inclined-web wood pole are both made of plywood.

The utility model discloses following beneficial effect has:

the utility model discloses to the main atress characteristic of arched girder, adopt many circle bamboos crisscross mode side by side to the great chord member of atress to satisfy the high strength demand of arched girder. And the less straight web wooden pole of atress and oblique web wooden pole adopt the plank material to increase chord member and the contact surface of straight web wooden pole and oblique web wooden pole, improved connection quality and connection rigidity effectively, the utility model discloses having concurrently and encircleing and truss structure's advantage, turning into axial pressure with the moment of flexure through the effect of encircleing, increased the rigidity under the dead load effect, again through hollowing out into the truss with main arch structure, alleviateed the dead weight, improved material utilization, and increased stability and connection reliability.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural view of the connecting device of the present invention;

FIG. 4 is a schematic structural view of the middle oblique fixing screw of the present invention;

FIG. 5 is a schematic structural view of the middle vertical fixing screw of the present invention;

fig. 6 is a schematic structural view of the middle transverse fixing screw of the present invention.

In the figure: 1-a chord member; 2-a base; 3-round bamboo; 4-straight web wooden pole; 5-oblique abdomen wooden pole; 6-a connecting device; 61-a connecting rod; 62-grouting layer; 7-oblique fixing screw; 8-vertical fixed screw; 9-transverse fixing screw.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1 to 6, the utility model discloses a chord member 1 and the base 2 of setting at chord member 1 both ends, the shape of chord member 1 is for encircleing the form and by many round bamboos 3 crisscross component side by side, and chord member 1 turns into axial pressure with the bending moment through the effect of encircleing, has increased the utility model discloses rigidity under the dead load effect. Be equipped with multiunit slant clamping screw 7 in the chord member 1, slant clamping screw 7 passes circle bamboo 3 in proper order and crisscross setting, is in the same place 3 slant fixed connection of multiunit circle bamboo, has improved the connection stability between the circle bamboo 3. Still be equipped with the vertical set screw 8 that the multiunit passed circle bamboo 3 in proper order in chord member 1, through setting up the vertical set screw 8 in chord member 1 with the vertical fixed connection of multiunit circle bamboo 3 together, cooperation slant set screw 7 has further improved the connection stability between the circle bamboo 3. And a transverse fixing screw 9 is arranged between the round bamboo 3 and the straight web wood rod 4, and a transverse fixing screw 9 is also arranged between the round bamboo 3 and the oblique web wood rod 5, so that the connection stability between the round bamboo 3 and the straight web wood rod 4 and the connection stability between the oblique web wood rods 5 are improved.

Further refer to fig. 2 and 4, be equipped with the straight abdomen wooden pole 4 of multiunit in chord member 1, straight abdomen wooden pole 4 adopts the material to be the veneer board to the both ends of straight abdomen wooden pole 4 set up with chord member 1 is perpendicular respectively, are equipped with multiunit oblique abdomen wooden pole 5 in chord member 1, and oblique abdomen wooden pole 5 adopts the material also to be the veneer board, and the both ends of oblique abdomen wooden pole 5 set up with chord member 1 slope respectively, the utility model discloses to main atress characteristic, adopt many root circles bamboo 3 crisscross mode side by side to the great chord member 1 of atress to satisfy the high strength demand of arched girder. The straight-web wood rod 4 and the oblique-web wood rod 5 which are relatively small in axial force are made of wood plates, so that the contact surfaces of the chord 1 and the straight-web wood rod 4 and the oblique-web wood rod 5 are increased, the connection quality and the connection rigidity are effectively improved, and the connection reliability is improved.

Further referring to fig. 5 and 6, a connecting device 6 is provided between the bamboo ends of the adjacent round bamboos 3, and the connecting device 6 includes a connecting rod 61 provided in the bamboo end of the adjacent round bamboo 3 and a grouting layer 62 provided outside the connecting rod 61. The two ends of the connecting rod 61 are respectively arranged in the joint films of the round bamboos 3, and the grouting layer 62 is arranged between the joint films of the adjacent round bamboos 3. The connection stability between the bamboo ends of the adjacent round bamboos 3 is improved through the matching between the connecting rod 61 and the grouting layer 62. The utility model discloses have the advantage of encircleing with truss structure concurrently, turn into axial pressure with the bending moment through the effect of encircleing, increased the rigidity under the dead load effect, again through hollowing out into the truss with main arch structure, alleviateed the dead weight, improved material utilization to stability and connection reliability have been increased.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The truss bamboo arch structure is characterized by comprising chords (1) and bases (2) arranged at two ends of the chords (1), wherein the chords (1) are formed by a plurality of round bamboos (3) in a side-by-side staggered mode, a plurality of groups of straight web wooden rods (4) which are perpendicular to the chords (1) are arranged in the chords (1), a plurality of groups of inclined web wooden rods (5) which are obliquely arranged with the chords (1) are further arranged in the chords (1), the straight web wooden rods (4) and the inclined web wooden rods (5) are arranged in a staggered mode, and connecting devices (6) are arranged between bamboo ends of the adjacent round bamboos (3).

2. The bamboo arch structure of claim 1, wherein the connection means (6) comprises a connection rod (61) arranged in the bamboo end of the adjacent round bamboo (3) and a grouting layer (62) arranged outside the connection rod (61).

3. The bamboo arch structure of claim 2, wherein the connecting rods (61) are respectively provided at both ends thereof in the node films of the round bamboos (3), and the grouting layer (62) is provided between the node films of the adjacent round bamboos (3).

4. The bamboo arch structure of the truss of claim 1, wherein a plurality of groups of oblique fixing screws (7) are arranged in the chord member (1), and the oblique fixing screws (7) sequentially penetrate through the round bamboo (3) and are arranged in a staggered manner.

5. The bamboo arch structure of the truss of claim 4, wherein a plurality of groups of vertical fixing screws (8) which sequentially penetrate through the round bamboo (3) are arranged in the chord member (1).

6. The bamboo arch structure of truss of claim 1, wherein a transverse fixing screw (9) is provided between the round bamboo (3) and the straight web wood rod (4), and the transverse fixing screw (9) is also provided between the round bamboo (3) and the inclined web wood rod (5).

7. The bamboo arch structure of claim 1, wherein the straight-web wood poles (4) and the diagonal-web wood poles (5) are made of plywood.