CN111395528A - Raw bamboo continuous lengthening structure - Google Patents

Raw bamboo continuous lengthening structure Download PDF

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Publication number
CN111395528A
CN111395528A CN202010247694.4A CN202010247694A CN111395528A CN 111395528 A CN111395528 A CN 111395528A CN 202010247694 A CN202010247694 A CN 202010247694A CN 111395528 A CN111395528 A CN 111395528A
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CN
China
Prior art keywords
raw bamboo
bamboo
raw
extension
embedded
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Pending
Application number
CN202010247694.4A
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Chinese (zh)
Inventor
魏洋
申聪
陈思
赵康
李国芬
董峰辉
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Nanjing Forestry University
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Nanjing Forestry University
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Publication date
Application filed by Nanjing Forestry University filed Critical Nanjing Forestry University
Priority to CN202010247694.4A priority Critical patent/CN111395528A/en
Publication of CN111395528A publication Critical patent/CN111395528A/en
Pending legal-status Critical Current

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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
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • 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
    • E04B1/38Connections for building structures in general
    • E04B1/58Connections for building structures in general of bar-shaped building elements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

A continuous raw bamboo lengthening structure comprises a reference raw bamboo, a lengthening raw bamboo, embedded raw bamboos and cotters, wherein the reference raw bamboo and the lengthening raw bamboo are connected in sequence by penetrating and fixing the embedded raw bamboos inside the reference raw bamboo and the lengthening raw bamboo, the connecting end faces of the reference raw bamboo and the lengthening raw bamboo are tightly attached, more than 1 cotters are respectively arranged on two sides of the connecting end faces, the cotters penetrate through the diameter directions of the reference raw bamboo, the lengthening raw bamboo and the embedded raw bamboo, and gaps between the inner walls of the reference raw bamboo and the lengthening raw bamboo and the outer walls of the embedded raw bamboo are filled with adhesives. The invention adopts the raw bamboos with smaller diameters to realize the mutual butt joint and the length extension of a plurality of raw bamboos with larger diameters, has convenient connection, beautiful appearance and low connection cost, and greatly improves the adaptability of the building structure to the requirement of the large length of the raw bamboos.

Description

Raw bamboo continuous lengthening structure
Technical Field
The invention relates to a raw bamboo structure, in particular to a structure formed by butt-joint and lengthening raw bamboos, and belongs to the field of civil engineering.
Background
The bamboo material has the characteristics of short growth period, high yield, high strength, environmental protection, reproducibility and the like, the bamboo structure has good heat insulation performance, and has important significance for building energy conservation and green development, the original bamboo structure is used as a modern building material to meet the requirement of sustainable development, and the original bamboo structure is widely applied to building structures all the time.
The raw bamboo is usually lengthened due to insufficient length in the using process. But the connection is binded directly with adjacent former bamboo to current extension mode is many, and this makes the former bamboo axis of adjacent connection not on a straight line, and power transmission effect is poor, and produced the unfavorable result of eccentric atress, and the connecting elements wholeness is poor, in addition, the mutual dislocation overlap joint of binding the connection has undoubtedly influenced the pleasing to the eye outward appearance of former bamboo structure.
The existing original bamboo lengthening method mainly comprises a ring buckle type lengthening method, a bamboo rod lengthening method with a threaded sleeve embedded part and the like. For example, chinese patent CN208748831U discloses a ring-buckled bamboo rod lengthening structure, which enhances the integrity of the structure, but the shear strength and bending strength of the joint are reduced by one time, and the joint is easily damaged, and the manufacturing steps are complicated and complicated; for another example, chinese patent CN208748830U discloses a bamboo rod lengthening structure with a threaded sleeve embedded part, which realizes the lengthening of raw bamboos to a greater extent, and the axes of two raw bamboos are in a line, so as to better transmit force, but lack bolts, and have insufficient pressure resistance, tensile resistance and torsion resistance, and the manufacturing is complex and the manufacturing cost is high.
Disclosure of Invention
The invention aims to provide a raw bamboo continuous lengthening structure, wherein a plurality of raw bamboos are mutually lengthened and connected by using the raw bamboos with relatively small diameters and are connected by strengthening through vertical pins, so that the central lines of the connected reference raw bamboos and the lengthened raw bamboos are on the same straight line, better force transmission can be realized, and the requirements of tensile, compressive and bending bearing can be met.
The technical scheme of the invention is as follows: a continuous raw bamboo lengthening structure is characterized by comprising a reference raw bamboo, a lengthening raw bamboo, embedded raw bamboos and cotters, wherein the reference raw bamboo and the lengthening raw bamboo are sequentially lengthened and connected by penetrating and fixing the embedded raw bamboo in the reference raw bamboo and the lengthening raw bamboo, the connecting end faces of the reference raw bamboo and the lengthening raw bamboo are tightly attached, the cross section size, the shape and the center line of the connecting end faces are consistent, the center lines of the connected reference raw bamboo and the lengthening raw bamboo are on the same straight line, force can be better transferred, the requirements of tensile resistance, compression resistance and bending resistance are met, more than 1 cotters are arranged on two sides of the connecting end faces respectively, the cotters penetrate through the diameter directions of the reference raw bamboo, the lengthening raw bamboo and the embedded raw bamboo, and a gap between the inner wall of the reference raw bamboo and the lengthening raw bamboo and the outer wall of the embedded raw bamboo is filled with an adhesive.
The gap between the inner wall of the reference raw bamboo and the extension raw bamboo and the outer wall of the embedded raw bamboo is not more than 2 mm.
The pin bolt is made of bamboo, wood, metal and plastic materials, is preferably made of bamboo and wood, and is provided with anchoring structures at two ends according to requirements.
The lengths of the embedded original bamboos extending into the reference original bamboos and the extension original bamboos are equal to each other and are not less than 100mm respectively.
The connection end face of the reference raw bamboo and the extension raw bamboo is perpendicular to the axis direction of the connection position.
The axial directions of more than 1 pin bolt are along the same or staggered diameter directions, and the diameter directions which are staggered with each other are preferably adopted.
The adhesive is one of epoxy resin, vinyl resin and polyurethane resin, and is applied or filled into the gap between the inner wall of the reference raw bamboo and the extension raw bamboo and the outer wall of the embedded raw bamboo.
The pin can be omitted as desired.
The invention adopts the raw bamboos with smaller diameters to realize the mutual butt joint and the length extension of a plurality of raw bamboos with larger diameters, has convenient connection, beautiful appearance and low connection cost, greatly improves the adaptability of a building structure to the requirement of the large length of the raw bamboos, and has the following advantages compared with other continuous extension structures of the raw bamboos:
(1) the central lines of the connected original bamboos are on the same straight line, so that better force transmission can be realized, and the reduction of the tensile, compressive and bending bearing capacity of the connecting structure is reduced.
(2) The original bamboos connected adjacently are integrated by the pin bolt, the adhesive and a plurality of measures of the embedded original bamboos, so that the structural integrity is guaranteed.
(3) The connection operation is simple, the manufacture is convenient, and the connection cost is low.
(4) Because the connecting end faces of the adjacent lengthened raw bamboos are tightly attached, the sizes, the shapes and the central lines of the cross sections of the connecting end faces are consistent with each other, the connecting position has no staggered platform, and the appearance is attractive.
Description of the drawings:
FIG. 1 is a schematic perspective view of a continuous bamboo extension structure;
FIG. 2 is a schematic perspective detail view of a continuous bamboo lengthening structure;
FIG. 3 is a schematic cross-sectional view of a raw bamboo continuous growing structure;
FIG. 4 is a schematic perspective view of a raw bamboo continuous growing structure without a pin;
FIG. 5 is a schematic perspective detail view of a raw bamboo continuous growing structure without a pin;
FIG. 6 is a schematic cross-sectional view of a raw bamboo continuous growing structure with a pin omitted;
FIG. 7 is a schematic view of an embedded raw bamboo in a continuous raw bamboo growing structure;
fig. 8 is a schematic view of a pin bolt of a raw bamboo continuous growing structure.
In the attached drawings, 1 is a reference raw bamboo, 2 is a lengthened raw bamboo, 3 is an embedded raw bamboo, 4 is a pin bolt, and 5 is an adhesive.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in the attached drawings, the continuous extension structure of the raw bamboos is characterized by comprising reference raw bamboos 1, extension raw bamboos 2, embedded raw bamboos 3 and cotters 4, wherein the reference raw bamboos 1 and the extension raw bamboos 2 are sequentially connected through penetrating and fixing the embedded raw bamboos 3 in the reference raw bamboos 1 and the extension raw bamboos 2, the connection end surfaces of the reference raw bamboos 1 and the extension raw bamboos 2 are tightly attached, the section sizes, the shapes and the center lines of the connection end surfaces are consistent with each other, so that the center lines of the connected reference raw bamboos 1 and the extension raw bamboos 2 are on the same straight line, the power that can be better passes, realizes the demand that tensile, resistance to compression, bending resistance bore, and the both sides of connecting the terminal surface respectively set up 1 above cotter 4, and cotter 4 runs through in the diameter direction of former bamboo 1 of benchmark, extension former bamboo 2 and embedded former bamboo 3, and the clearance between the outer wall of former bamboo 3 of the inner wall of former bamboo 1 of benchmark and extension former bamboo 2 is full of adhesive 5.
The gap between the inner walls of the reference raw bamboo 1 and the extension raw bamboo 2 and the outer wall of the embedded raw bamboo 3 is not more than 2 mm.
The pin 4 is made of bamboo, wood, metal and plastic materials, is preferably made of bamboo and wood, and is provided with anchoring structures at two ends according to requirements.
The lengths of the embedded raw bamboos 3 extending into the reference raw bamboos 1 and the extension raw bamboos 2 are equal to each other and are not less than 100mm respectively.
The connection end surface of the reference raw bamboo 1 and the extension raw bamboo 2 is vertical to the axis direction of the connection position.
The axial direction of 1 or more pins 4 is along the same or staggered diameter direction, and the diameter directions staggered with each other are preferably adopted.
The adhesive 5 is one of epoxy resin, vinyl resin and polyurethane resin, and is coated or poured into the gap between the inner walls of the reference raw bamboo 1 and the extension raw bamboo 2 and the outer wall of the embedded raw bamboo 3.
The pin 4 may be omitted as necessary.

Claims (6)

1. The utility model provides a raw bamboo serialization extension structure, its characterized in that includes benchmark raw bamboo (1), extension raw bamboo (2), embedded raw bamboo (3), cotter (4), benchmark raw bamboo (1) realizes the extension in proper order of the two with extension raw bamboo (2) through penetrating and fixing embedded raw bamboo (3) inside it and links to each other, benchmark raw bamboo (1) closely pastes closely with the connection terminal surface of extension raw bamboo (2), the cross-sectional size, shape and the central line of connecting the terminal surface are unanimous each other, and the both sides of connecting the terminal surface respectively set up more than 1 cotter (4), cotter (4) run through in the diameter direction of benchmark raw bamboo (1), extension raw bamboo (2) and embedded raw bamboo (3), the clearance adhesive (5) between the outer wall of embedded raw bamboo (3) is full of the inner wall of benchmark raw bamboo (1) and extension raw bamboo (2).
2. A raw bamboo continuous elongation structure as claimed in claim 1, wherein a gap between the inner wall of the reference raw bamboo (1) and the elongated raw bamboo (2) and the outer wall of the embedded raw bamboo (3) is not more than 2 mm.
3. The continuous growing structure of raw bamboo as claimed in claim 1, wherein the pin (4) is made of bamboo, wood, metal or plastic material.
4. A raw bamboo continuous elongation structure as claimed in claim 1, wherein respective lengths of the embedded raw bamboo (3) extending into the interior of the reference raw bamboo (1) and the elongated raw bamboo (2) are equal to each other and are each not less than 100 mm.
5. A continuous bamboo extension structure as claimed in claim 1, wherein the connection end face of the reference raw bamboo (1) and the extension raw bamboo (2) is perpendicular to the axial direction of the connection.
6. A continuous bamboo elongation structure as claimed in claim 1, wherein more than 1 pin (4) is axially oriented along the same or offset diameter.
CN202010247694.4A 2020-03-31 2020-03-31 Raw bamboo continuous lengthening structure Pending CN111395528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010247694.4A CN111395528A (en) 2020-03-31 2020-03-31 Raw bamboo continuous lengthening structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010247694.4A CN111395528A (en) 2020-03-31 2020-03-31 Raw bamboo continuous lengthening structure

Publications (1)

Publication Number Publication Date
CN111395528A true CN111395528A (en) 2020-07-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010247694.4A Pending CN111395528A (en) 2020-03-31 2020-03-31 Raw bamboo continuous lengthening structure

Country Status (1)

Country Link
CN (1) CN111395528A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115627843A (en) * 2022-10-26 2023-01-20 中国五冶集团有限公司 Bamboo arch closure connecting structure and connecting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115627843A (en) * 2022-10-26 2023-01-20 中国五冶集团有限公司 Bamboo arch closure connecting structure and connecting method

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