CN107654010B - A round bamboo space three-hinge arch structure unit and round bamboo space three-hinge arch structure system - Google Patents

Abstract

The circular bamboo space three-hinged arch structure unit comprises a fixing device, a first space unit and a second space unit which are formed by a vertical supporting structure and a roof bearing structure, wherein the top ends of the first space unit and the second space unit are mutually hinged, the bottom ends of the first space unit and the second space unit are respectively hinged with the fixing device to form a space three-hinged arch unit, and the circular bamboo space three-hinged arch structure system comprises the circular bamboo space three-hinged arch structure unit. A certain distance is reserved between two adjacent circular bamboo space three-hinged arch structural units, and a connecting device for connecting the two adjacent circular bamboo space three-hinged arch structural units into a whole is arranged between the circular bamboo space three-hinged arch structural units. The single rod piece of the structural system has small section bending moment, the rod piece mainly bears axial force, and the round bamboo rod piece has poor bending property and good axial force, so the structural system is very suitable for round bamboo structures.

Description

A round bamboo space three-hinge arch structure unit and round bamboo space three-hinge arch structure system

technical field

The invention belongs to building structures, in particular to a round bamboo space three-hinge arch structure unit and a round bamboo space three-hinge arch structure system.

Background technique

The truss roof truss is a planar structure composed of straight rods and generally has triangular units. The truss rods mainly bear axial tension or pressure, so that the strength of the material can be fully utilized, and it is widely used in life and industry. However, due to the setting of the lower chord members, the "triangular" space occupied by the truss roof truss cannot pass through. The effective passage and use height of the building is the height from the lower chord to the ground, which greatly affects the passing height of the building.

In the 2010 Shanghai World Expo, the "German-Chinese Home" is a round bamboo structure building. The round bamboo structural columns are arranged obliquely and meet at a point where the roof eaves and the ground meet. The access to the building is the angled space between the round bamboo structural columns. , the effective passageway for people is small, and the rapid evacuation of the flow of people cannot be realized. In order to increase the passageway into the building, the angle between the columns of the round bamboo structure can be increased or the height of the building can be increased, but both will bring As the length of the round bamboo column increases, the structural stability becomes poor, so this structure is not suitable for buildings with a large flow of people. The structure uses steel members to bear the roof load, and the steel members transmit the roof load to the connecting nodes of the round bamboo in the form of node load. The round bamboo bars on the roof only serve as a connection, and do not bear the vertical load of the roof, which is wasteful. The connecting members between the roof structure units are only horizontal and vertical rods, which do not form triangles, and the overall stability of the roof is poor.

Contents of the invention

The purpose of the present invention is to solve the problems mentioned above, to provide a three-hinge arch structural unit in a round bamboo space and a three-hinge arch structural system in a round bamboo space.

The technical scheme that the present invention adopts is as follows:

The invention provides a round bamboo space three-hinge arch structure unit, including a fixing device, a space unit 1 and a space unit 2 composed of a vertical support structure and a roof load-bearing structure, and the tops of the space unit 1 and the space unit 2 are hinged to each other , and are respectively hinged with the fixing device at the bottom to form a three-hinge arch unit in the round bamboo space.

The present invention adopts the vertical support structure to bear the force transmitted by the roof load-bearing structure, and the wall surface is not stressed. In the selection of wall surface materials, more considerations can be made to various requirements such as aesthetics and economy, and the selection range is wider; Compared with the beam structure system, the cross-sectional bending moment of a single bar in the arch structure system is very small, and the bar mainly bears axial force, while the round bamboo bar has poor bending performance and better axial force. Therefore, the arch structure system is more suitable for the round bamboo structure; the space three-hinge arch unit is better than the plane three-hinge arch unit against left and right thrust, and has better stability. The space three-hinge arch structure system can be spliced more in the left and right directions The three-hinge arch structural unit of the round bamboo space meets the use needs of larger buildings.

Furthermore, the vertical support structure includes column 1, column 2 and column 3. One end of column 1, column 2 and column 3 is hinged to the fixing device, and the other end is hinged to the roof load-bearing structure. Column 1 is inclined 0 to 45 degrees to the right. The second tilts 0-45 degrees to the left, the first column and the second column tilt 0-60 degrees outward, and the third column tilts 0-45 degrees inward.

The first column is inclined 0-45 degrees to the right, and the second column is inclined 0-45 degrees to the left. The received horizontal force is transmitted to the fixing device and a part of the horizontal force is counteracted. Compared with the vertical setting, the number of rods and fixing devices for connecting the first column and the second column is reduced.

Further, the third column includes the third left column and the third right column, and the third left column and the third right column are hinged by short connecting beams, the third left column is inclined to the left by 0-45 degrees, and the third column to the right is inclined to the right by 0-45 degrees .

A combined column composed of three left columns and three right columns can be used instead of the integral column, which can facilitate material selection and reduce the stress requirements for a single material.

Furthermore, the load-bearing structure of the roof includes the upper chord, the tie rod 1, the plane diagonal brace 1, the web 1, the web 2 and the lower chord, and the upper chord includes the upper chord 1 and the upper chord 2. Tie rod 2 is arranged at the hinge, one end of upper chord 1, one end of upper chord 2 and one end of lower chord are hinged with tie rod 2, tie rod 1 is hinged with upper chord 1, upper chord 2, one end of web 1 and web One end of the second, the other end of the column two, the other end of the column one, the other end of the lower chord, the other end of the web bar one, the other end of the web bar two, and the other end of the column three are hinged in pairs, the upper chord one, the upper chord The second rod, the first tie rod and the second tie rod form a parallelogram, the plane diagonal brace one is hinged at two points on the diagonal of the parallelogram, and the included angle between the upper chord and the horizontal plane is 0-60 degrees.

Plane brace 1 connects two diagonal points of the parallelogram to form a triangle, which makes the entire roof load-bearing structure more stable; web 1, web 2 and bottom chord tie the roof load-bearing structure and vertical support structure together, which can Prevent the downward deflection of the roof load-bearing structure; the angle between the upper chord and the horizontal plane is 0-60 degrees, that is, the angle between the roof load-bearing structure and the horizontal plane is 0-60 degrees. A roof maintenance system can be installed on the roof load-bearing structure to form a building use space.

Furthermore, the distance from upper chord one to tie rod one and tie rod two away from the end of upper chord two is not more than half of the length of tie rod one or tie rod two, and the upper chord two to tie rod one and tie rod two are far away from the upper chord The distance from one end of tie rod 1 or tie rod 2 is not more than half of the length of tie rod 1 or tie rod 2, and the distance from tie rod 1 to upper chord 1 and upper chord 2 away from tie rod 2 is not greater than the length of upper chord 1 or upper chord 2 one third.

Where the top chord extends beyond tie one to form an eave, if the distance from tie one to the end of top chord one and top chord two away from tie two is greater than one third of the length of top chord one or top chord two, the top chord The end of the rod close to the tie rod 2 has a tendency to upturn, which will increase the stress at the joint between the tie rod 2 and the upper chord and increase the deflection of the upper chord 1 and the upper chord 2 on the side of the eaves; similarly, the upper chord The distance from rod one to tie rod one and tie rod two away from the end of chord two is not more than half of the length of tie rod one or tie rod two, and the distance from upper chord two to tie rod one and tie rod two away from the end of chord one The distance is not more than half of the length of tie bar one or tie bar two.

Furthermore, the two ends of the tie rod two are respectively hinged to one end of the upper chord one and the upper chord two, and the two ends of the tie rod one are respectively hinged to the other end of the upper chord one and the upper chord two.

Furthermore, the space unit 1 and the space unit 2 are arranged mirror-symmetrically.

The present invention also provides a three-hinge arch structural system in round bamboo space, comprising the above-mentioned three-hinge arch structural unit in round bamboo space, characterized in that there is a certain distance between two adjacent three-hinge arch structural units in round bamboo space. A connecting device for connecting two adjacent round bamboo space three-hinge arch structural units into a whole is provided between the three-hinge arch structural units of the bamboo space.

There is a certain distance between the three-hinged arch structural units of two adjacent round bamboo spaces, and the usable clear height at the interval is the clear height between the tie bar five and the bottom, which can be used as an entrance and exit passage, and can also be used for multiple purposes Compared with the above-mentioned "German-Chinese Home", the passageway into the building is the angle space between the round bamboo structure columns, which improves the effective use of the building space; compared with the planar three-hinged arch system, it can provide Larger entrance and exit space; the distance between the three-hinge arch structural units of two adjacent round bamboo spaces can be comprehensively considered according to the force of the three-hinge arch structural units of the round bamboo space and the requirements of the door opening size.

Furthermore, the connection device includes tie rod five, tie rod six and planar brace two, and the two ends of tie rod five are respectively hinged to connect the vertical support structure of the three-hinged arch structural unit of two adjacent round bamboo spaces to the roof load-bearing structure. The two ends of the tie rod six are respectively hinged to connect the space unit one and the space unit two of the adjacent two round bamboo space three-hinge arch structural units, and the plane diagonal brace two is hinged to the tie rod five and tie rod six Diagonal point.

Tie rod 5, tie rod 6 and planar bracing 2 connect two adjacent round bamboo space three-hinged arch structural units and form a whole, so that the structural system can be continuously expanded in the left and right directions, thus meeting the needs of larger buildings. use needs.

Further, the connection device also includes a rod member 7, one end of the rod member 7 is hingedly connected to the node connecting the vertical support structure and the roof load-bearing structure, and the other end of the rod member 7 is hingedly connected to the vertical support structure and the fixing device of nodes.

When there is no need to set up an entrance and exit passage between two adjacent three-hinge arch structural units of the round bamboo space, rods seven shall be arranged symmetrically near the longitudinal ends; When more, every certain structural unit is provided with bar member 7, which is more conducive to connecting two adjacent round bamboo space three-hinge arch structural units and forming a whole.

In summary, the beneficial effects of the present invention are:

1. The cross-sectional bending moment of a single bar of the structural system of the present invention is very small, and the bar mainly bears axial force, while the round bamboo bar has poor bending performance and is better subjected to axial force, so the present invention is very suitable In the round bamboo structure;

2. There is a certain distance between the three-hinged arch structural units of two adjacent round bamboo spaces, and the usable clear height at the space is the clear height between the tie bar five and the bottom, which can be used as an entrance and exit passage, or as a variety of Compared with the "German-Chinese Home", the access to the building is the angle space between the columns of the round bamboo structure, which improves the effective use of the building space;

3. Compared with the truss-type roof truss, the present invention can make greater use of the "triangular" space occupied by the truss-type roof truss and increase the height of the space used;

4. The round bamboo rods of the present invention are all connected by hinges, which solves the problem that the round bamboo rods are difficult to rigidly connect;

5. The present invention uses straight rods without bending the rods. The natural round bamboo can be properly treated as a material, and the materials can be obtained locally in the bamboo production area, which reduces the energy consumption and resource loss caused by transportation. Use, and the weight of round bamboo is light, which can reduce or even avoid the use of heavy machinery and equipment during construction, which not only reduces the intervention and damage to the natural environment during the construction process, but also facilitates installation and operation, saving social resources and labor costs. Round bamboo construction After the service life expires and it is removed, the bamboo can be degraded to reduce environmental pollution;

6. All round bamboo rods of the present invention can be classified according to cross-sectional dimensions of different specifications at the processing site, processed into rods of precise length, and standardized hinged members are used to realize an assembled round bamboo structure system, which is convenient and fast Accurate construction and installation;

7. The present invention does not use walls for load-bearing, and the walls can be flexibly selected according to aesthetics and economy, and the walls can also be freely arranged according to needs, without being limited by force.

Description of drawings

Fig. 1 is the schematic diagram of three-hinge arch structural unit of round bamboo space;

Fig. 2 is the schematic diagram of the three-hinge arch structure system of round bamboo space;

Fig. 3 is the structural diagram of the front view of the three-hinged arch structural system of the round bamboo space;

Fig. 4 is the structural diagram of the roof diagram of the three-hinged arch structure system of the round bamboo space;

Fig. 5 is a structural diagram of a side view of a three-hinged arch structure system in a round bamboo space.

Marks in the picture: 100-round bamboo space three-hinged arch structure unit, 1-fixing device, 2-column 1, 3-column 2, 4-tie rod 1, 5-top chord, 5001-top chord 1, 5002-top chord Rod 2, 6-plane diagonal brace 1, 7-tie rod 2, 8-web rod 1, 9-web rod 2, 10-column 3, 1001-left column 3, 1002-right column 3, 11-short connecting beam , 12-Bottom chord, 12001-Bottom chord 1, 12002-Bottom chord 2, 15-Space unit 1, 16-Space unit 2, 50-Tie rod 5, 51-Tie rod 6, 52-Plane diagonal brace 2, 53 - Rod seven.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Example

A round bamboo space three-hinge arch structural unit, including a fixing device 1, a space unit 1 and a space unit 2 composed of a vertical support structure and a roof load-bearing structure, the tops of the space unit 1 and the space unit 2 are hinged to each other, and The bottom ends are respectively hinged with the fixing device 1 to form a three-hinged arch unit in space. The fixing device 1 is a reinforced concrete foundation, and the vertical support structure includes a column 1 2, a column 2 3 and a column 3 10. The second column is inclined outward by 0-60 degrees, and the third column 10 is inclined inwardly by 0-45 degrees. The third column 10 includes the left column three 1001 and the right column three 1002, and the left column three 1001 and the right column three 1002 pass through short connecting beams 11 hinged, the left column 3 1001 is tilted 0-45 degrees to the left, and the right column 3 1002 is tilted 0-45 degrees to the right; space unit 15 and space unit 2 16 are mirror-symmetrical, and space unit 15 and space unit 2 16 are hinged , the roof load-bearing structure includes upper chord 5, tie rod one 4, planar diagonal brace one 6, web one 8, web two 9 and lower chord 12, and there is a tie at the hinge of space unit one 15 and space unit two 16 Rod two 7, upper chord 5 includes upper chord one 5001 and upper chord two 5002, the angle between upper chord 5 and the horizontal plane is 0～60 degrees, lower chord 12 includes lower chord one 12001 and lower chord two 12002; Column one 2, One end of column two 3, left column three 1001 and right column three 1002 is hinged to fixing device 1, the other end of column one 2, one end of tie bar one 4, one end of web bar one 8 and one end of upper chord one 5001 Hinged, the other end of column two 3, the other end of tie rod one 4, one end of web bar two 9, one end of plane diagonal brace one 6 and one end of upper chord two 5002 are hinged in pairs, the other end of left column three 1001, The other end of the second web 9 and one end of the lower chord 12002 are hinged in pairs, the other end of the right column 3 1002, the other end of the web 1 8 and one end of the lower chord 1 12001 are hinged in pairs, and one end of the tie rod 2 7 , the other end of the plane diagonal brace one 6, the other end of the lower chord one 12001 and the other end of the upper chord one 5001 are hinged in pairs, the other end of the tie rod two 7, the other end of the lower chord two 12002 and the upper chord two 5002 The other ends are hinged in pairs.

Top chord one 5001 and top chord two 5002 can exceed tie rod one 4 to form eaves, and tie rod one 4 and tie rod two 7 also can surpass top chord one 5001 or top chord two 5002 to form gable surface eaves.

The first space unit 15 and the second space unit 16 can have the same structure, but the sizes of the parts are different.

A three-hinge arch structure system in a round bamboo space, comprising a three-hinge arch structural unit 100 in a round bamboo space, a certain distance between two adjacent three-hinge arch structural units 100 in a round bamboo space, and a three-hinge arch structural unit 100 in a round bamboo space There is a connecting device between them, and the connecting device includes tie rod five 50, tie rod six 51 and plane diagonal brace two 52, and the two ends of tie rod five 50 are respectively hinged to the vertical support of the three-hinged arch structural unit in the adjacent two round bamboo spaces. The joint between the structure and the roof load-bearing structure, the two ends of the tie rod six 51 are respectively hinged to the joint between the space unit one 15 and the space unit two 16 of the three-hinge arch structural unit of the adjacent two round bamboo spaces, and the plane diagonal brace two 52 is hinged at the diagonal points of tie rod five 50 and tie rod six 51; when there is no need to set up an entrance and exit passage between two adjacent round bamboo space three-hinge arch structural units, rod seven 53 is arranged symmetrically near the longitudinal end One end of the rod seven 53 is hinged to the node where the vertical support structure is connected to the roof load-bearing structure, and the other end of the rod seven 53 is hinged to the node where the vertical support structure is connected to the fixing device.

The "round bamboo" of the present invention can be partially or completely replaced by glued bamboo, recombined bamboo, bamboo strip laminated wood, steel pipe or wood.

The "hinge" of the present invention can also be replaced by semi-rigid joint or rigid joint.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (8)

1. The circular bamboo space three-hinged arch structure system is characterized by comprising circular bamboo space three-hinged arch structure units (100), wherein a certain distance is reserved between every two adjacent circular bamboo space three-hinged arch structure units (100), a connecting device for connecting every two adjacent circular bamboo space three-hinged arch structure units (100) into a whole is arranged between every two adjacent circular bamboo space three-hinged arch structure units (100), the connecting device comprises a tie bar five (50), a tie bar six (51) and a plane diagonal brace two (52), two ends of the tie bar five (50) are respectively hinged to a node for connecting a vertical supporting structure and a roof bearing structure of every two adjacent circular bamboo space three-hinged arch structure units, two ends of the tie bar six (51) are respectively hinged to a node for connecting a space unit one (15) and a space unit two (16) of every two adjacent circular bamboo space three-hinged arch structure units, the plane diagonal brace two (52) are hinged to diagonal points of the tie bar five (50) and the tie bar six (51), and the net height between the using net height of the space tie bar five (50) and the bottom surface is the net height;

the circular bamboo space three-hinged arch structure unit (100) comprises a fixing device (1), a first space unit and a second space unit which are formed by a vertical supporting structure and a roof bearing structure, wherein the top ends of the first space unit and the second space unit are mutually hinged, and the bottom ends of the first space unit and the second space unit are respectively hinged with the fixing device (1) to form the circular bamboo space three-hinged arch structure unit (100).

2. The circular bamboo space three-hinged arch structure system according to claim 1, wherein the vertical supporting structure comprises a first upright post (2), a second upright post (3) and a third upright post (10), one end of the first upright post (2), one end of the second upright post (3) and one end of the third upright post (10) are hinged to the fixing device (1), the other end of the second upright post is hinged to the roof bearing structure, the first upright post (2) is inclined to the right by 0-45 degrees, the second upright post (3) is inclined to the left by 0-45 degrees, the first upright post (2) and the second upright post (3) are inclined outwards by 0-60 degrees, and the third upright post (10) is inclined inwards by 0-45 degrees.

3. The circular bamboo space three-hinged arch structure system according to claim 2, wherein the third upright post (10) comprises a left third upright post (1001) and a right third upright post (1002), the left third upright post (1001) and the right third upright post (1002) are hinged through a short connecting beam (11), the left third upright post (1001) is inclined leftwards by 0-45 degrees, and the right third upright post (1002) is inclined rightwards by 0-45 degrees.

4. The circular bamboo space three-hinged arch structure system according to claim 2, wherein the roof bearing structure comprises an upper chord member (5), a first tie rod (4), a plane diagonal brace (6), a first web member (8), a second web member (9) and a lower chord member (12), the upper chord member (5) comprises the upper chord member (5001) and the upper chord member (5002), the second tie rod (7) is arranged at the joint of the space unit (15) and the space unit (16), one end of the upper chord member (5001), one end of the upper chord member (5002) and one end of the lower chord member (12) are hinged with the second tie rod (7), the first tie rod (4) is hinged with the upper chord member (5001), the upper chord member (5002), one end of the web member (8) and one end of the web member (9), the other end of the upright post (3), the other end of the upright post (2), the other end of the lower chord member (12), the other end of the web member (8) and the other end of the web member (9) are hinged with the upper chord member (10), the diagonal brace (6), the two end of the diagonal brace (5) are hinged with the upper chord member (6), and the diagonal member (5) are formed at two horizontal planes.

5. A round bamboo space three-hinged arch structure system according to claim 4, wherein the distance from the first upper chord (5001) to the end of the first upper chord (4) and the second upper chord (7) away from the second upper chord (5002) is no more than half the length of the first upper chord (4) or the second upper chord (7), the distance from the second upper chord (5002) to the end of the first upper chord (4) and the second upper chord (7) away from the first upper chord (5001) is no more than half the length of the first upper chord (4) or the second upper chord (5002), and the distance from the first upper chord (4) to the end of the first upper chord (5001) and the second upper chord (5002) is no more than one third the length of the first upper chord (5001) or the second upper chord (5002).

6. A circular bamboo space three-hinged arch structure system according to claim 4, wherein two ends of the second tie rod (7) are respectively hinged with one end of the first upper chord member (5001) and one end of the second upper chord member (5002), and two ends of the first tie rod (4) are respectively hinged with the other ends of the first upper chord member (5001) and the second upper chord member (5002).

7. A round bamboo space three-hinge arch structure system according to claim 1, characterized in that the space unit one (15) and the space unit two (16) are arranged in mirror symmetry.

8. A round bamboo space three-hinge arch structure system according to claim 1, wherein the connecting means further comprises a rod seven (53), one end of the rod seven (53) is hinged to a node where the vertical support structure and the roof support structure are connected, and the other end of the rod seven (53) is hinged to a node where the vertical support structure and the fixing means are connected.

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