Steel frame bamboo plywood formwork is a new type of building formwork developed to make full use of my country's bamboo resources, further improve the service life of bamboo plywood formwork, and realize the standardization of formwork products. This standard is specially formulated to strengthen the production and quality management of steel frame bamboo plywood formwork and promote its promotion and application. This standard specifies the definition, classification, specifications, requirements, test methods, inspection rules and markings, packaging, transportation and storage of steel frame bamboo plywood formwork. This standard is applicable to steel frame bamboo plywood formwork for pouring concrete. JG/T 3059-1999 Steel frame bamboo plywood formwork JG/T3059-1999 Standard download decompression password: www.bzxz.net

Engineering Construction Standard Full-text Information System
Construction Industry Standard of the People's Republic of China JG/T3059—1999
Plybamboo form with steel frame
Published on 1999-05-26
Implemented on 1999-12-01
Published by the Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
.Engineering Construction Standard Full-text Information System
JG/T30591999
Cited Standards
Product Classification, Specifications and Models
Test Methods
Inspection Rules
....... ....
Marking, packaging, transportation and storage·
Appendix A (Appendix to the standard) Specifications of steel frame bamboo plywood formwork and steel frame structure...14 Appendix to the standard) Support formwork and main accessories Test equipment Measuring tool accuracy table
Appendix C (Appendix to the standard)
Appendix D (Suggestive Appendix) Allowable load of steel frame bamboo plywood formwork under different support conditions and cross-sectional characteristics of its main components 21 Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
JG/T30591999
Steel frame bamboo plywood formwork is a new type of building formwork developed to make full use of my country's bamboo resources, further improve the service life of bamboo plywood formwork, and realize the standardization of formwork products. This standard is specially formulated to strengthen the production and quality management of steel frame bamboo plywood formwork and promote its promotion and application.
Appendix A, Appendix B, and Appendix C of this standard are all standard appendices, and Appendix D of this standard is a suggestive appendix.
This standard was proposed by the Standard and Quota Research Institute of the Ministry of Construction. This standard was issued by the China Academy of Building Research, the unit responsible for the standard and technical management of construction projects of the Ministry of Construction.
This standard was drafted by the China Academy of Building Research, and was drafted by Beijing Heran Building New Technology Company, Beijing Institute of Civil Engineering, Shaoyang Baoqing Industrial Co., Ltd., Liuzhou Railway Guilong Bamboo Wood-based Panel Factory, Zhengzhou Tianda Industrial Group Co., Ltd., Beijing Sixth Construction Engineering Company, Zhejiang Deqing Moganshan Packaging Co., Ltd. Formwork Branch, Tianjin Beichen District Lude Engineering Equipment Factory, Beijing Zhuzhu Building Formwork Co., Ltd. and other units.
The main drafters of this standard are Shi Binghua, Wu Guangbin, Gao Xian, Chen Jialong, Li Ji Zhangqi, Zhang Xiaoping, He Axiao, Yang Jianzhong, Nie Shiwen, Yang Luqi, Pan Li, and Yu Xiuxiang. This standard is entrusted to the China Academy of Building Research for interpretation. I
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Construction Industry Standard of the People's Republic of China Steel Frame Bamboo Plywood Formwork
Plybamboo form with steel frame Scope
JG/T3059—1999
This standard specifies the definition, classification, specifications, requirements, test methods, inspection rules and marking, packaging, transportation and storage of steel frame bamboo plywood formwork. This standard applies to steel frame bamboo plywood formwork for pouring concrete. 2
Cited Standards
The provisions contained in the following standards constitute the provisions of the standards through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards. GB/T6991988 Technical conditions for high-quality carbon structural steel GB/T700—1988
Carbon structural steel
GB/T2828—1987 Counting sampling procedure and sampling table for batch inspection (applicable to inspection of continuous batches)
GB/T3098.1—1982 Mechanical properties of fasteners Bolts, screws and studs GB/T5117—1995 Carbon steel welding rods
JGL81-1991 Welding code for building steel structures JG/T3026—1995 Bamboo plywood formwork
Approved by the Ministry of Construction of the People's Republic of China on 1999-05-26 Engineering Construction Standard Full-text Information System
Implementation on 1992-12-01
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3 Definitions
This standard adopts the following definitions.
3.1 Steel frame steelframe
Steel structural skeleton composed of boundary ribs, main ribs and secondary ribs for supporting bamboo plywood. 3.2 Boundary rib
Steel around the steel frame.
Main rib
Structural member in the steel frame that bears the load transmitted by the bamboo plywood. Divided into transverse main ribs and longitudinal main ribs.
Seeondary rib
Member set in the steel frame according to structural requirements. 3.5 Bamboo plywood
Plywood mainly made of bamboo with phenolic resin as adhesive. 3.6
Conversion coefficient
Conversion coefficient
The coefficient of reduction of the static bending elastic modulus and static bending strength of bamboo plywood due to the increase of moisture content.
Product classification, specifications and models
4.1 Classification
4.1.1 Steel frame bamboo plywood formwork is divided into Class A formwork and Class B formwork according to the load-bearing capacity. 4.1.2 Class A formwork uses 15mm thick plywood and Class B formwork uses 12mm thick bamboo plywood.
The specifications of steel frame bamboo plywood formwork shall comply with the provisions of Table 1 and Appendix A (Appendix to the standard).
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Steel Frame Bamboo Plywood Formwork Specifications
600,900,1200,500,800,200,2400600,900200500800
300600,900,1200
300,600
4.2.2 For the specifications of auxiliary formwork and main accessories, see Appendix B (Appendix of the Standard). 4.3 Model
The three parts of name code, characteristic code and main parameter code are arranged in the following order.
Main parameter code: Indicated by the nominal length, width and height of the template Characteristic code: A indicates Class A template: Indicates Class template name code: MGZ
Marking example
The model of Class A steel frame bamboo plywood template with a length of 1800mm, a width of 1200mm and a height of 75mm is
MGZ·A1800X1200X75JG/T3059—1999. 5 Requirements
The bamboo plywood shall comply with the provisions of JG/T3026, and shall be of superior quality and the reduction factor shall be considered.
5.1.2 The steel material of the steel frame, auxiliary template and accessories shall comply with the Q235 steel specified in GB/T700, or the No. 20 steel specified in GB/T699. 3
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5.1.3 The longitudinal curvature of the top surface of the side rib steel should be less than or equal to 2mm/m, and the longitudinal distortion of the side should not be greater than 3mm/m.
5.1.4 When manual welding is used, the provisions of JGJ81 shall be followed, and the welding rods used shall comply with the E43 series welding rods specified in GB/T5117. 5.1.5 The technical requirements for the countersunk bolts used to connect bamboo plywood to steel frame shall comply with the provisions of GB/T3098.1.
5.2 Basic requirements
5.2.1 The processing of steel frame bamboo plywood formwork shall be made in accordance with the processing drawings and technical documents designed in relevant regulations and procedures.
5.2.2 The connection between formwork and formwork and between formwork and auxiliary formwork shall ensure tight joints, reliable connection, convenient assembly and disassembly, and interchangeability in different combinations. 5.2.3 The contact surface between the main rib, secondary rib and bamboo plywood should be tight. The gap between the side rib and bamboo plywood should not be greater than 2mm and should be filled with elastic putty. 5.2.4 The countersunk bolts (M6) used to connect bamboo plywood to steel frame should be evenly set and not higher than the board surface. The edge distance should not be less than 3a (d is the bolt diameter), the spacing should not be greater than 300mm, the row spacing should not be greater than 300mm, and there should be no less than 2 per row. 5.2.5 The cross-section of a side rib, transverse main rib and longitudinal main rib should comply with the provisions of Figure 1. 5.3 Process requirements
5.3.1 The cutting of side ribs should ensure that the shape of the component is regular and the sheared edges are neat and free of burrs. Special dies are used for punching, and the hole diameter and position are shown in Table 2 and Figure 2. Table 2 Side rib hole diameter and position
Template height
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Class A (Class B) side
Class A main auxiliary (2)
Class A longitudinal main auxiliary (1
Class A transverse main rib
Class B transverse main rib
Figure 1 Schematic diagram of side rib, transverse main rib and longitudinal main rib side rib elevation
Figure 2 Side rib aperture hole position diagram
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Connection hole
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5.3.2 The welding between the main rib and the side rib, and between the main rib and the main rib should be full welding, and the weld height is 3mm.
The welding of the steel frame should adopt a reasonable welding sequence and should be carried out on a special jig. The weld should be smooth and uniform, and there should be no defects such as pores, weld penetration, cracks, arc holes, undercuts, and leaks. ||t t||5.3.4 The welding deformation of the steel frame shall be corrected, and the side ribs shall not be damaged during the correction. 5.4 Dimension requirements
5.4.1 The dimensional limit deviation of the steel frame bamboo plywood formwork and main components shall comply with the requirements of Table 3.
5.4.2 The steel frame bamboo plywood formwork can be divided into excellent products and qualified products according to the limit deviation specified in Table 3.
Steel frame bamboo plywood formwork and main components dimensional limit deviation mm
Length (L)||tt| |Width (B)
Height (H)
Diagonal difference
Form flatness
Side rib straightness
Main rib thickness
Main rib thickness
Main rib height
Difference in height between plate surface and side rib
Side rib verticality
Connection hole position
Engineering Construction Standard Full Text Information System
Limit deviation
Excellent product
1/1 000
Qualified products
Project nature
Class I items
Heavy items
Class I items
. Engineering Construction Standard Full-text Information System
Connection hole diameter ()
Connection cross hole (f,)
Table 3 (end)
Limit deviation
Excellent products
Weld length
Performance requirements
Weld height
Qualified products
Project nature
Class I items
5.5.1 The maximum allowable load of steel frame bamboo plywood formwork determined by the stiffness requirement is: 60 kN/m2 for Class A formwork and 20-kN/m2 for Class B formwork. The reference values ​​of allowable loads for formworks with different support conditions are shown in Appendix D). 5.5.2 The overall mechanical properties of the formwork shall be determined by tests. The test specimens specified in Table 8 shall be used and tested in accordance with the requirements of Table 4. The test results shall show that there shall be no local damage or bending, the residual deformation after unloading shall not exceed 0.2 m, and all welds shall be free of cracks. Table 4 Overall mechanical properties of steel frame bamboo plywood formwork Type
Spacing between support points
5.6 Edge sealing and coating requirements
Test uniformly distributed load
Maximum deflection at mid-span
Test method
Perform as per 6.2
Before assembling bamboo plywood, waterproof edge sealing paint shall be fully applied on the periphery and opening wall to ensure the waterproof performance of the formwork.
The steel frame should be painted with two coats of anti-rust paint and one coat of topcoat. The coating surface should be uniform without runoff, peeling and missing paint.
Test method
6.1 Appearance and size inspection
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6.1.1 The inspection method for the size and appearance of the steel frame bamboo plywood formwork and main components shall comply with the provisions of Table 5, and the results shall comply with the requirements of 5.2.5 and 5.4 of this standard. Table 5 Inspection methods for the dimensions and appearance of steel frame bamboo plywood formwork and its main components Item
Length, width
Straightness of edge
Flatness of formwork
Inspection method
Measure the length and width of the formwork at 100mm from the edge rib of the formwork with a steel tape measure
, measure 2 points each and take the flatness of the 2 points
Inspection toolbZxz.net
Measure the midpoint of the edge ribs of the formwork with a vernier caliper in both directions and take the average value of the 4 points
Measure the straightness of the ruler and feeler gauge of the four edge ribs of the formwork
Measure the unevenness of the formwork surface, take the maximum value of the 2m ruler and feeler gauge
Thickness of edge rib, thickness and height of main ribMeasure the vernier scale at the two ends and midpoint of each rib
Diagonal difference
Verticality of edge rib Measure the height difference between the board surface and the side ribs, the thickness and height, take the average of three points, measure the length of the two diagonals of the template, and find out the difference between the two lengths. Measure the verticality of each side rib. Square ruler, feeler gauge. Measure the height difference between the side rib and the board surface. Ruler, straight ruler, maximum stability of cold ruler. Position of connecting holes, diameter of connecting holes. Measure the position of each hole, diameter of the hole, size of the cross hole. Length, height and appearance of welds. Check the appearance of all welds, position, length and height of each weld. The connection between bamboo plywood and steel frame shall be measured with a ruler. The result shall comply with the requirements of 5.2.4.
6.1.3 Edge sealing and coating shall be visually inspected in accordance with the requirements of 5.6. 6.2 Test of overall mechanical properties of formwork
6.2.1 Place the formwork on a pedestal with simple support as shown in Figure 3, so that the length center of the formwork coincides with the support center, and apply a vertical uniform load to the formwork. 6.2.2 Test of overall mechanical properties of formwork The uniform load shall be divided into 6 to 8 levels. The 8th
Engineering Construction Standard Full Text Information System
.Engineering Construction Standard Full Text Information System
add three levels of load to check whether the test device and instrument are sensitive. Unload the load to zero and let it stand for 5 minutes before officially conducting the test.
q=qx600
9-test uniform load, kN/m?;
g'-test line load, kN/m;
900 and 600-span (in the length direction of the template) and width of the template specimen, mm;
12-a displacement gauge (micrometer)
3-a template mid-span deflection gauge (percentile gauge)
Figure 3 Test device for overall mechanical properties of template
6.2.3 The template should be subjected to a secondary formal loading test. After each level of loading, stop for 30 seconds to read the mid-span deflection value and the settlement value of the supports at both ends. Loading and unloading should be light to prevent vibration of the instrument. 6.2.4 The load readings and instrument readings of each level of loading are recorded in Table 6, and the mid-span deflection values ​​are sorted according to the requirements of Table 6. The average value of the mid-span deflection of the secondary loading is taken as the result. Note: The accuracy of the test equipment and measuring tools is shown in the Appendix (Appendix of the Standard). Table 6 Experimental data of overall mechanical properties of formwork Specimen number:
Load value
Engineering construction standard full-text information system
Mid-span micrometer
Support 1 micrometerSupport 2 micrometer
Deflection value
bzsosO.Cm2 Steel frame bamboo plywood formwork can be divided into excellent and qualified products according to the limit deviation specified in Table 3.
Steel frame bamboo plywood formwork and main parts size limit deviation mm
Length (L)
Width (B)
Height (H)
Diagonal difference
Formwork flatness
Side rib straightness
Main rib thickness
Main rib thickness
Main rib height
Difference in height between board surface and side rib
Side rib verticality
Connection hole position
Engineering Construction Standard Full Text Information System
Limit deviation
Excellent products
1/1 000
Qualified products
Project nature
Class I items
Heavy items
Class I items
. Engineering Construction Standard Full-text Information System
Connection hole diameter ()
Connection cross hole (f,)
Table 3 (end)
Limit deviation
Excellent products
Weld length
Performance requirements
Weld height
Qualified products
Project nature
Class I items
5.5.1 The maximum allowable load of steel frame bamboo plywood formwork determined by the stiffness requirement is: 60 kN/m2 for Class A formwork and 20-kN/m2 for Class B formwork. The reference values ​​of allowable loads for formworks with different support conditions are shown in Appendix D). 5.5.2 The overall mechanical properties of the formwork shall be determined by tests. The test specimens specified in Table 8 shall be used and tested in accordance with the requirements of Table 4. The test results shall show that there shall be no local damage or bending, the residual deformation after unloading shall not exceed 0.2 m, and all welds shall be free of cracks. Table 4 Overall mechanical properties of steel frame bamboo plywood formwork Type
Spacing between support points
5.6 Edge sealing and coating requirements
Test uniformly distributed load
Maximum deflection at mid-span
Test method
Perform as per 6.2
Before assembling bamboo plywood, waterproof edge sealing paint shall be fully applied on the periphery and opening wall to ensure the waterproof performance of the formwork.
The steel frame should be painted with two coats of anti-rust paint and one coat of topcoat. The coating surface should be uniform without runoff, peeling and missing paint.
Test method
6.1 Appearance and size inspection
Engineering Construction Standard Full Text Information System
bzsosO.Cm Engineering Construction Standard Full
6.1.1 The inspection method for the size and appearance of the steel frame bamboo plywood formwork and main components shall comply with the provisions of Table 5, and the results shall comply with the requirements of 5.2.5 and 5.4 of this standard. Table 5 Inspection methods for the dimensions and appearance of steel frame bamboo plywood formwork and its main components Item
Length, width
Straightness of edge
Flatness of formwork
Inspection method
Measure the length and width of the formwork at 100mm from the edge rib of the formwork with a steel tape measure
, measure 2 points each and take the flatness of the 2 points
Inspection tool
Measure the midpoint of the edge ribs of the formwork with a vernier caliper in both directions and take the average value of the 4 points
Measure the straightness of the ruler and feeler gauge of the four edge ribs of the formwork
Measure the unevenness of the formwork surface, take the maximum value of the 2m ruler and feeler gauge
Thickness of edge rib, thickness and height of main ribMeasure the vernier scale at the two ends and midpoint of each rib
Diagonal difference
Verticality of edge rib Measure the height difference between the board surface and the side ribs, the thickness and height, take the average of three points, measure the length of the two diagonals of the template, and find out the difference between the two lengths. Measure the verticality of each side rib. Square ruler, feeler gauge. Measure the height difference between the side rib and the board surface. Ruler, straight ruler, maximum stability of cold ruler. Position of connecting holes, diameter of connecting holes. Measure the position of each hole, diameter of the hole, size of the cross hole. Length, height and appearance of welds. Check the appearance of all welds, position, length and height of each weld. The connection between bamboo plywood and steel frame shall be measured with a ruler. The result shall comply with the requirements of 5.2.4.
6.1.3 Edge sealing and coating shall be visually inspected in accordance with the requirements of 5.6. 6.2 Test of overall mechanical properties of formwork
6.2.1 Place the formwork on a pedestal with simple support as shown in Figure 3, so that the length center of the formwork coincides with the support center, and apply a vertical uniform load to the formwork. 6.2.2 Test of overall mechanical properties of formwork The uniform load shall be divided into 6 to 8 levels. The 8th
Engineering Construction Standard Full Text Information System
.Engineering Construction Standard Full Text Information System
add three levels of load to check whether the test device and instrument are sensitive. Unload the load to zero and let it stand for 5 minutes before officially conducting the test.
q=qx600
9-test uniform load, kN/m?;
g'-test line load, kN/m;
900 and 600-span (in the length direction of the template) and width of the template specimen, mm;
12-a displacement gauge (micrometer)
3-a template mid-span deflection gauge (percentile gauge)
Figure 3 Test device for overall mechanical properties of template
6.2.3 The template should be subjected to a secondary formal loading test. After each level of loading, stop for 30 seconds to read the mid-span deflection value and the settlement value of the supports at both ends. Loading and unloading should be light to prevent vibration of the instrument. 6.2.4 The load readings and instrument readings of each level of loading are recorded in Table 6, and the mid-span deflection values ​​are sorted according to the requirements of Table 6. The average value of the mid-span deflection of the secondary loading is taken as the result. Note: The accuracy of the test equipment and measuring tools is shown in the Appendix (Appendix of the Standard). Table 6 Experimental data of overall mechanical properties of formwork Specimen number:
Load value
Engineering construction standard full-text information system
Mid-span micrometer
Support 1 micrometerSupport 2 micrometer
Deflection value
bzsosO.Cm2 Steel frame bamboo plywood formwork can be divided into excellent and qualified products according to the limit deviation specified in Table 3.
Steel frame bamboo plywood formwork and main parts size limit deviation mm
Length (L)
Width (B)
Height (H)
Diagonal difference
Formwork flatness
Side rib straightness
Main rib thickness
Main rib thickness
Main rib height
Difference in height between board surface and side rib
Side rib verticality
Connection hole position
Engineering Construction Standard Full Text Information System
Limit deviation
Excellent products
1/1 000
Qualified products
Project nature
Class I items
Heavy items
Class I items
. Engineering Construction Standard Full-text Information System
Connection hole diameter ()
Connection cross hole (f,)
Table 3 (end)
Limit deviation
Excellent products
Weld length
Performance requirements
Weld height
Qualified products
Project nature
Class I items
5.5.1 The maximum allowable load of steel frame bamboo plywood formwork determined by the stiffness requirement is: 60 kN/m2 for Class A formwork and 20-kN/m2 for Class B formwork. The reference values ​​of allowable loads for formworks with different support conditions are shown in Appendix D). 5.5.2 The overall mechanical properties of the formwork shall be determined by tests. The test specimens specified in Table 8 shall be used and tested in accordance with the requirements of Table 4. The test results shall show that there shall be no local damage or bending, the residual deformation after unloading shall not exceed 0.2 m, and all welds shall be free of cracks. Table 4 Overall mechanical properties of steel frame bamboo plywood formwork Type
Spacing between support points
5.6 Edge sealing and coating requirements
Test uniformly distributed load
Maximum deflection at mid-span
Test method
Perform as per 6.2
Before assembling bamboo plywood, waterproof edge sealing paint shall be fully applied on the periphery and opening wall to ensure the waterproof performance of the formwork.
The steel frame should be painted with two coats of anti-rust paint and one coat of topcoat. The coating surface should be uniform without runoff, peeling and missing paint.
Test method
6.1 Appearance and size inspection
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bzsosO.Cm Engineering Construction Standard Full
6.1.1 The inspection method for the size and appearance of the steel frame bamboo plywood formwork and main components shall comply with the provisions of Table 5, and the results shall comply with the requirements of 5.2.5 and 5.4 of this standard. Table 5 Inspection methods for the dimensions and appearance of steel frame bamboo plywood formwork and its main components Item
Length, width
Straightness of edge
Flatness of formwork
Inspection method
Measure the length and width of the formwork at 100mm from the edge rib of the formwork with a steel tape measure
, measure 2 points each and take the flatness of the 2 points
Inspection tool
Measure the midpoint of the edge ribs of the formwork with a vernier caliper in both directions and take the average value of the 4 points
Measure the straightness of the ruler and feeler gauge of the four edge ribs of the formwork
Measure the unevenness of the formwork surface, take the maximum value of the 2m ruler and feeler gauge
Thickness of edge rib, thickness and height of main ribMeasure the vernier scale at the two ends and midpoint of each rib
Diagonal difference
Verticality of edge rib Measure the height difference between the board surface and the side ribs, the thickness and height, take the average of three points, measure the length of the two diagonals of the template, and find out the difference between the two lengths. Measure the verticality of each side rib. Square ruler, feeler gauge. Measure the height difference between the side rib and the board surface. Ruler, straight ruler, maximum stability of cold ruler. Position of connecting holes, diameter of connecting holes. Measure the position of each hole, diameter of the hole, size of the cross hole. Length, height and appearance of welds. Check the appearance of all welds, position, length and height of each weld. The connection between bamboo plywood and steel frame shall be measured with a ruler. The result shall comply with the requirements of 5.2.4.
6.1.3 Edge sealing and coating shall be visually inspected in accordance with the requirements of 5.6. 6.2 Test of overall mechanical properties of formwork
6.2.1 Place the formwork on a pedestal with simple support as shown in Figure 3, so that the length center of the formwork coincides with the support center, and apply a vertical uniform load to the formwork. 6.2.2 Test of overall mechanical properties of formwork The uniform load shall be divided into 6 to 8 levels. The 8th
Engineering Construction Standard Full Text Information System
.Engineering Construction Standard Full Text Information System
add three levels of load to check whether the test device and instrument are sensitive. Unload the load to zero and let it stand for 5 minutes before officially conducting the test.
q=qx600
9-test uniform load, kN/m?;
g'-test line load, kN/m;
900 and 600-span (in the length direction of the template) and width of the template specimen, mm;
12-a displacement gauge (micrometer)
3-a template mid-span deflection gauge (percentile gauge)
Figure 3 Test device for overall mechanical properties of template
6.2.3 The template should be subjected to a secondary formal loading test. After each level of loading, stop for 30 seconds to read the mid-span deflection value and the settlement value of the supports at both ends. Loading and unloading should be light to prevent vibration of the instrument. 6.2.4 The load readings and instrument readings of each level of loading are recorded in Table 6, and the mid-span deflection values ​​are sorted according to the requirements of Table 6. The average value of the mid-span deflection of the secondary loading is taken as the result. Note: The accuracy of the test equipment and measuring tools is shown in the Appendix (Appendix of the Standard). Table 6 Experimental data of overall mechanical properties of formwork Specimen number:
Load value
Engineering construction standard full-text information system
Mid-span micrometer
Support 1 micrometerSupport 2 micrometer
Deflection value
bzsosO.Cm4 requirements. Table 5 Inspection methods for the dimensions and appearance of steel frame bamboo plywood formwork and main components Item
Length, width
Straightness of edge
Flatness of formwork
Inspection method
Measure the length and width of the formwork at 100mm from the side rib of the formwork with a steel tape measure, and measure 2 points respectively, and take the flatness of the 2 points. Inspection tool
Measure the midpoint of the side ribs of the formwork with a vernier caliper in both directions, and take the average value of 4 points.
Measure the straightness of the four side ribs of the formwork with a ruler and a feeler gauge
Measure the unevenness of the formwork surface, and take the maximum value of a 2m ruler and a feeler gauge
Thickness of side ribs, thickness and height of main ribs Measure the vernier scale at both ends and the midpoint of each rib
Diagonal difference
Verticality of side ribs Measure the height difference between the board surface and the side ribs, the thickness and height, take the average of three points, measure the length of the two diagonals of the template, and find out the difference between the two lengths. Measure the verticality of each side rib. Square ruler, feeler gauge. Measure the height difference between the side rib and the board surface. Ruler, straight ruler, maximum stability of cold ruler. Position of connecting holes, diameter of connecting holes. Measure the position of each hole, diameter of the hole, size of the cross hole. Length, height and appearance of welds. Check the appearance of all welds, position, length and height of each weld. The connection between bamboo plywood and steel frame shall be measured with a ruler. The result shall comply with the requirements of 5.2.4.
6.1.3 Edge sealing and coating shall be visually inspected in accordance with the requirements of 5.6. 6.2 Test of overall mechanical properties of formwork
6.2.1 Place the formwork on a pedestal with simple support as shown in Figure 3, so that the length center of the formwork coincides with the support center, and apply a vertical uniform load to the formwork. 6.2.2 Test of overall mechanical properties of formwork The uniform load shall be divided into 6 to 8 levels. The 8th
Engineering Construction Standard Full Text Information System
.Engineering Construction Standard Full Text Information System
add three levels of load to check whether the test device and instrument are sensitive. Unload the load to zero and let it stand for 5 minutes before officially conducting the test.
q=qx600
9-test uniform load, kN/m?;
g'-test line load, kN/m;
900 and 600-span (in the length direction of the template) and width of the template specimen, mm;
12-a displacement gauge (micrometer)
3-a template mid-span deflection gauge (percentile gauge)
Figure 3 Test device for overall mechanical properties of template
6.2.3 The template should be subjected to a secondary formal loading test. After each level of loading, stop for 30 seconds to read the mid-span deflection value and the settlement value of the supports at both ends. Loading and unloading should be light to prevent vibration of the instrument. 6.2.4 The load readings and instrument readings of each level of loading are recorded in Table 6, and the mid-span deflection values ​​are sorted according to the requirements of Table 6. The average value of the mid-span deflection of the secondary loading is taken as the result. Note: The accuracy of the test equipment and measuring tools is shown in the Appendix (Appendix of the Standard). Table 6 Experimental data of overall mechanical properties of formwork Specimen number:
Load value
Engineering construction standard full-text information system
Mid-span micrometer
Support 1 micrometerSupport 2 micrometer
Deflection value
bzsosO.Cm4 requirements. Table 5 Inspection methods for the dimensions and appearance of steel frame bamboo plywood formwork and main components Item
Length, width
Straightness of edge
Flatness of formwork
Inspection method
Measure the length and width of the formwork at 100mm from the side rib of the formwork with a steel tape measure, and measure 2 points respectively, and take the flatness of the 2 points. Inspection tool
Measure the midpoint of the side ribs of the formwork with a vernier caliper in both directions, and take the average value of 4 points.
Measure the straightness of the four side ribs of the formwork with a ruler and a feeler gauge
Measure the unevenness of the formwork surface, and take the maximum value of a 2m ruler and a feeler gauge
Thickness of side ribs, thickness and height of main ribs Measure the vernier scale at both ends and the midpoint of each rib
Diagonal difference
Verticality of side ribs Measure the height difference between the board surface and the side ribs, the thickness and height, take the average of three points, measure the length of the two diagonals of the template, and find out the difference between the two lengths. Measure the verticality of each side rib. Square ruler, feeler gauge. Measure the height difference between the side rib and the board surface. Ruler, straight ruler, maximum stability of cold ruler. Position of connecting holes, diameter of connecting holes. Measure the position of each hole, diameter of the hole, size of the cross hole. Length, height and appearance of welds. Check the appearance of all welds, position, length and height of each weld. The connection between bamboo plywood and steel frame shall be measured with a ruler. The result shall comply with the requirements of 5.2.4.
6.1.3 Edge sealing and coating shall be visually inspected in accordance with the requirements of 5.6. 6.2 Test of overall mechanical properties of formwork
6.2.1 Place the formwork on a pedestal with simple support as shown in Figure 3, so that the length center of the formwork coincides with the support center, and apply a vertical uniform load to the formwork. 6.2.2 Test of overall mechanical properties of formwork The uniform load shall be divided into 6 to 8 levels. The 8th
Engineering Construction Standard Full Text Information System
.Engineering Construction Standard Full Text Information System
add three levels of load to check whether the test device and instrument are sensitive. Unload the load to zero and let it stand for 5 minutes before officially conducting the test.
q=qx600
9-test uniform load, kN/m?;
g'-test line load, kN/m;
900 and 600-span (in the length direction of the template) and width of the template specimen, mm;
12-a displacement gauge (micrometer)
3-a template mid-span deflection gauge (percentile gauge)
Figure 3 Test device for overall mechanical properties of template
6.2.3 The template should be subjected to a secondary formal loading test. After each level of loading, stop for 30 seconds to read the mid-span deflection value and the settlement value of the supports at both ends. Loading and unloading should be light to prevent vibration of the instrument. 6.2.4 The load readings and instrument readings of each level of loading are recorded in Table 6, and the mid-span deflection values ​​are sorted according to the requirements of Table 6. The average value of the mid-span deflection of the secondary loading is taken as the result. Note: The accuracy of the test equipment and measuring tools is shown in the Appendix (Appendix of the Standard). Table 6 Experimental data of overall mechanical properties of formwork Specimen number:
Load value
Engineering construction standard full-text information system
Mid-span micrometer
Support 1 micrometerSupport 2 micrometer
Deflection value
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