GBJ 206-1983 Specification for Construction and Acceptance of Timber Structure Engineering GBJ206-83
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National Standard of the People's Republic of China
Timber Structure Engineering
Construction and Acceptance Code
GBJ206——83
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National Standard of the People's Republic of China
Timber Structure Engineering Construction and Acceptance Code
GBJ206——83
Editor: Harbin Institute of Architecture and Civil Engineering
Approval Unit: Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China Recorded by the State Planning Commission of the Republic of China November 1, 1983
Effective Date: 1
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Notice on Issuing the "Construction and Acceptance Specifications for Wood Structure Engineering"
(83) Chengkezi No. 273
The national standard "Construction and Acceptance Specifications for Wood Structure Engineering" (GBJ5-64 "Revised Edition") approved and issued by the former Ministry of Construction Engineering has been handed over to the Heilongjiang Provincial Construction Committee for supervision and Harbin Institute of Construction Engineering for editing, and has been revised in conjunction with relevant units. The draft has been reviewed and finalized. It has now been reviewed by our department, approved for issuance and reported to the State Planning Commission for record, and will be implemented from November 1, 1983. The number is GBJ206-83. The management and interpretation of the standard shall be the responsibility of the "Construction and Acceptance Specifications Management Group of Harbin Institute of Construction Engineering". We hope to inform them of the problems and opinions encountered in the implementation so that they can refer to them when revising again. Ministry of Urban and Rural Construction and Environmental Protection
May 3, 1983
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Revision NotesWww.bzxZ.net
This specification is based on the notice of the former State Construction Commission (79) Jianshifa No. 168 and the former State Construction Engineering Bureau (80) Jiangongke No. 385, and is under the supervision of the Heilongjiang Provincial Construction Commission and edited by the Harbin Institute of Architecture and Civil Engineering. It is a revision of the 1973 revised version of the "Wood Structure Engineering Construction and Acceptance Code" (GBJ5-64) approved and issued by the former Ministry of Construction. Participants in the revision include the Construction Committees of Jilin, Heilongjiang and Jiangxi Provinces, the Construction Bureaus of Fujian, Guangdong and Yunnan Provinces, the design, construction and scientific research units of the Forestry Bureau of Heilongjiang Province, as well as Tianjin University, Fuzhou University, Hefei University of Technology, the Wood Research Institute of the Chinese Academy of Forestry, the Forestry Research Institute of Guangdong Province, Beijing Guanghua Wood Factory, Yakeshi Forestry Bureau and Forestry Design Institute, Xiangfang Wood Comprehensive Processing Factory, etc.
During the revision process, investigations and studies were conducted in various regions in the north and south where the use conditions of wood structures are different, the practical experience of the masses was summarized, and the more mature scientific research results of wood structures in recent years were absorbed. The original specification is divided into five chapters and nine sections with a total of 107 articles and eight appendices. The revised specification is divided into six chapters and fourteen sections with a total of 140 articles and eight appendices. The main contents of the revision are as follows: 1. In view of the actual situation of my country's current wood supply, the quality assurance measures that should be taken when using wood species such as Northeast Larix, Masson Pine, Yunnan Pine, Birch, Casuarina, etc. have been supplemented, changing the situation that the original specification only applies to the construction of high-quality coniferous wood.
2. In order to meet the needs of the four modernizations, the content of glued wood structure is added and listed as a separate chapter.
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3. Delete some structural forms that are not in line with my country's national conditions and have low wood utilization, such as bonded beams, plate pin beams, etc. 4. Supplement the experience proven by engineering practice and scientific research results since the founding of the People's Republic of China, especially in recent years, such as steel-wood frames, supports and anchors, and effective anti-corrosion, anti-insect, fire-retardant agents and treatment methods, etc. 5. Appropriately supplement the provisions to meet the requirements of foreign contracted projects and domestic buildings with higher standards, such as adding a higher first-level standard in the material selection standards for doors and windows, etc.
6. Based on the principle of "advanced technology, economic rationality, safety and applicability", some modifications have been made to the requirements in the original specifications based on poor construction conditions and low technical levels.
In addition, some of the original specifications have been revised for duplication, improper order, unclear wording and individual errors. Engineering Construction Standard Full Text Information System
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Chapter 1 General Provisions
Chapter 2
Wood Structure and Wood Components·
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Chapter 3
Trusses and Beams
Wooden Roof Frame
Support and Anchorage
Ceiling and Partition Walls||tt ||Glued timber structure·
Section 1
Section 2
Section 3
Structural adhesive
Manufacture of glued timber structure
Small-material and short-material glued doors and windows
Section 4:
Chapter 4
Doors, windows and other joinery
Section 1
Section 2
Section 3
Section 4
Chapter 5
Chapter 6
Appendix 1
Appendix 2
Other joinery products
Anti-corrosion, anti-insect and fireproof treatment of wood structures. Project acceptance
Term comparison table
Main characteristics of commonly used wood
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Appendix 3
Appendix 4
Appendix 5
Determination of moisture content of wood
Determination of bonding ability
000000000000000000000000000000000 4 Determination of force transmission efficiency of glued finger joints
Appendix 6
Wood anticorrosion, insect-proof and fire-proof agents
Appendix 7
Appendix 8
Steel pad size table for tension bolts and round steel tie rods 60
Explanation of terms used in the specification
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Engineering Construction Standards Full-text Information System
Chapter 1 General Provisions
Article 1.0.1 This specification applies to the manufacture, assembly and installation of industrial and civil building wood structures and joinery products. Article 1.0.2 The species of wood used for wood structures and joinery products shall meet the design requirements and shall be treated with crack-proof, anti-deformation, anti-corrosion and insect-proof according to the provisions of this specification based on their characteristics.
Article 1.0.3 The production of wooden products shall comply with the instructions for saving wood, and the materials shall be planned according to the design requirements. Arbitrary sawing shall not be allowed to prevent the use of large materials for small purposes, long materials for short purposes, and high-quality materials for low-quality purposes.
Article 1.0.4 The production, assembly and installation of wooden products should adopt mechanized or semi-mechanized construction methods to improve the quality of the project and production efficiency. The wooden products produced in batches shall first make standard samples, and only after they are inspected and qualified can they be mass-produced.
Article 1.0.5 When handing over each major process of wooden products, quality inspection shall be carried out and construction records shall be kept.
Article 1.0.6 Measures shall be taken to prevent wooden products from being damp, bruised, polluted and exposed to the sun during storage and transportation. Article 1.0.7 The construction and acceptance of the steel part of the wooden structure shall comply with the provisions of the "Code for Construction and Acceptance of Steel Structure Engineering" (GBJ205-83). Article 1.0.8 The construction of wood products shall also comply with the provisions of the Code for Fire Protection Design of Buildings (TJ16-74). Engineering Construction Standard Full-text Information System
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Chapter 2 Wood Structures and Wood Components
Section 1 Materials
Article 2.1.1 The wood used for load-bearing structures shall comply with the material selection standards in Table 2.1.1-1, Table 2.1.1-2 or Table 2.1.1-3. Note: The wood grade in this code refers to the material selection standard for making components, not the grading standard for wood supply.
Standards for selection of square timber for load-bearing timber structures
Defect name
The sum of all the dimensions of the knots on any 15 cm
m length on any side of the member shall not be greater than
The width of the side where it is located shall not be greater than
Twill: the slope shall not be greater than (%)
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I and other materials
Tension members or
Bending members
Not allowed
(The connection part
is 1/4
Table 2.1.1-1
I-grade
bending members or
compression-bending members
not allowed
straight-grade
compression members
not allowed
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Defect Name
(1) On the shear surface of the connection
(2) Near the shear surface of the connection, the crack depth (the sum of the two when there is an opposite
crack) shall not be greater than the material width
I-grade
tension members or
bending members Components
Not allowed
Should avoid
Shear surface
Continued Table 2.1.1-1
I grade materials
Bending members or
Compression bending members
Not allowed
I grade materials
Compression members
Not allowed
Note: 1.I grade materials are not allowed to have dead knots, I and heavy grade materials are allowed to have dead knots (excluding developing decayed knots), for I grade materials, the diameter should not be greater than 20 mm, and there should not be more than 1 per linear meter, for I grade materials, the diameter should not be greater than 50 mm, and there should not be more than 2 per linear meter.
2.I grade materials are not allowed to have wormholes, I and I grade materials are allowed to have surface wormholes. 3. The size of the wood knot is measured perpendicular to the length of the member. When the knot is in the form of a strip, the strip side shall not be measured (see Figure 2.1.1). Knots with a diameter less than 10 mm shall not be counted.
1 Method for measuring knots
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Standard for selecting materials for load-bearing wood structure boards
Defect name
The sum of all knot sizes on any 15 cm
m length on any side of the member shall not be greater than
The width of the face where the knot is located Twill: The slope is not greater than (%)
The shear surface of the continuous tension part and its
Notes are the same as Table 2.1.1-1.
I and other materials
Tension members or
Bending members
Not allowed
G connection parts
1/5)
Not allowed
Not allowed
Table 2.1.1-2
I and other materials
Bending members or
Compression-bending members
Not allowed
Not allowed
Not allowed
Standards for selection of logs for load-bearing timber structures
Name of the pit
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1 and other materials
Bending members Tension member or
Bending member
Not allowed
I and other materials
I and other materials
Compression member
Not allowed
Not allowed
Table 2.1.1-3
I and other materials
Bending member or
Compression bending member
Not allowed
Compression member
Not allowed
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Defect Name
Wood knot:
(1) In any 15 cm||tt| |The sum of the sizes of all the knots along the perimeter on the length shall not be greater than the original perimeter of the measured part. (2) The maximum size of each knot shall not be greater than the original perimeter of the measured part. 3 Twist: The slope shall not be greater than (%). (1) On the shear surface of the connection. (2) Near the shear surface of the connection, the crack depth (the sum of the two when there is a crack on the opposite surface) shall not be greater than the diameter of the log. I and other materials. Tensile members or tension members ||Bending member
(1/12 at the connection part)
Not allowed
Should be walled
Shear surface
Continued Table 2.1.1-3
I grade materials
Bending member or
Compression bending member
Not allowed
I grade materials
Compression member
Not allowed
Note: 1. Dead knots are not allowed for I and I grade materials, and dead knots are allowed for I grade materials (excluding developing rotten knots). The diameter should not be greater than 1/5 of the log diameter, and there should be no more than 1 in every 2 meters.
2. Same as Note 2 of Table 2.1.1-1.
3. The size of the wood knot is measured perpendicular to the length of the member. Wood knots with a diameter of less than 10 mm are not measured.
When the material or appearance of the batch of timber used for load-bearing timber structures is significantly different from similar timber (such as too low bulk density, gray), the engineering construction standard full text information system1-3
I grade materials
bending members or
compression-bending members
not allowed
I grade materials
compression members
not allowed
Note: 1. Dead knots are not allowed for I and I grade materials, while dead knots are allowed for I grade materials (excluding developing rotten knots). The diameter should not be greater than 1/5 of the log diameter, and there should not be more than 1 in every 2 meters.
2. Same as Note 2 of Table 2.1.1-1.
3. The size of the knot is measured perpendicular to the length of the member. Knots with a diameter of less than 10 mm are not measured.
When the material or appearance of the batch of wood used for load-bearing wood structures is significantly different from that of similar wood (such as too low bulk density, gray), the engineering construction standard full text information system should be1-3
I grade materials
bending members or
compression-bending members
not allowed
I grade materials
compression members
not allowed
Note: 1. Dead knots are not allowed for I and I grade materials, while dead knots are allowed for I grade materials (excluding developing rotten knots). The diameter should not be greater than 1/5 of the log diameter, and there should not be more than 1 in every 2 meters.
2. Same as Note 2 of Table 2.1.1-1.
3. The size of the knot is measured perpendicular to the length of the member. Knots with a diameter of less than 10 mm are not measured.
When the material or appearance of the batch of wood used for load-bearing wood structures is significantly different from that of similar wood (such as too low bulk density, gray), the engineering construction standard full text information system should be
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