GOST 24379.0-80 Foundation Bolts

GOST 24379.0-80

Group G31

State Standard of the Union of Soviet Socialist Republics

FOUNDATION BOLTS

General Specifications

Foundation bolts. General specifications

OKP 12 8100

Effective date 1982-01-01

INFORMATIONAL DATA

1. DEVELOPED BY TsNIIpromzdaniy, TsNIIproektstalkonstruktsiya, TsNIISK named after Kucherenko, NIIZhB of Gosstroy of the USSR, and the Ministry of Installation and Special Construction Works of the USSR.

2. SUBMITTED BY TsNIIpromzdaniy of Gosstroy of the USSR.

3. APPROVED AND PUT INTO EFFECT by Resolution No. 133 of the USSR State Committee for Construction Affairs dated 25.08.80.

4. Review date — 1995, review frequency — 5 years.

5. INTRODUCED FOR THE FIRST TIME.

6. REFERENCE REGULATORY AND TECHNICAL DOCUMENTS

Designation of the referenced regulatory document	Clause number
GOST 2.601-68*	6.8
GOST 535-88	2.2; 2.4; 2.7
GOST 977-88	2.8
GOST 1050-88	2.2; 2.7
GOST 1412-85	2.8
GOST 1759.0-87	2.10; 6.5
GOST 1759.1-82	5.2
GOST 1759.2-82	5.2
GOST 1759.4-87	5.4
GOST 5915-70	3.1.1
GOST 8017-74	6.6
GOST 10605-72**	3.1.1
GOST 16350-80	Introduction; 2.2
GOST 17769-83	4.5
GOST 19281-89	2.2
GOST 19537-83	6.6
GOST 24379.1-80	2.1; 3.1; 4.1; 4.3; 4.4; 4.6
GOST 27772-88	2.7

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• In the Russian Federation, GOST 2.601-2006 is in effect.

** GOST 10605-94 is in effect, hereinafter in the text. — Note by “KODEKS”.

7. REISSUE (May 1991) with Amendment No. 1, approved in May 1990 (IUS 10-90).

This standard applies to foundation bolts (hereinafter — bolts) with thread diameter from 12 to 48 mm for the climatic region per GOST 16350-80, and from 12 to 140 mm for other climatic regions of the USSR, intended for fastening building structures and equipment.

(Amended edition, Amendment No. 1).

1. Classification

1.1. Bolts are classified by:

design type;

method of installation in the foundation;

method of anchoring in the foundation concrete;

operating conditions.

1.2. By design type, bolts are classified into types:

1 — bent;

2 — with anchor plate;

3 — composite;

4 — removable;

5 — straight;

6 — with conical end.

1.3. By method of installation in the foundation, bolts are classified into those installed before concreting of foundations and those installed in finished foundations in wells or boreholes.

1.3.1. Bolts installed before concreting of foundations include: bent (type 1, version 1); with anchor plate (type 2); composite (type 3); removable (type 4).

Note. When installing removable bolts, only the anchor reinforcement is embedded in the foundation mass, while the stud is installed freely in the pipe after the foundation is constructed.

1.3.2. Bolts installed in finished foundations in wells or boreholes include: bent (type 1, version 2); straight (type 5); with conical end (type 6).

Note. Type 1, version 2 bolts are installed in wells pre-provided in foundations, while type 5 and 6 bolts are installed in boreholes drilled in finished foundations using power tools.

1.4. By method of anchoring in the foundation concrete, bolts are classified into: anchored by direct interaction of elements (studs or anchor plates) with the foundation concrete (types 1–4); anchored using epoxy or siloxane adhesive, as well as cement-sand mixtures (types 5 and 6, versions 2 and 3); anchored using expanding collets (type 6, version 1).

1.5. By operating conditions, bolts are classified into load-bearing and constructional.

1.5.1. Load-bearing bolts include bolts that carry loads arising during the operation of building structures or equipment.

1.5.2. Constructional bolts include bolts provided for fastening building structures and equipment whose stability against overturning or sliding is ensured by the self-weight of the structures or equipment.

Constructional bolts are intended for aligning building structures and equipment during installation, for ensuring stable operation of structures and equipment during service, and for preventing their accidental displacement.

2. Technical requirements

2.1. Bolts shall be manufactured in accordance with the requirements of this standard and GOST 24379.1-80.

2.2. Steel grades for studs of load-bearing bolts, depending on the climatic regions of construction, shall be selected according to Table 1.

Table 1

Steel grade	Regulatory document	Steel category for the climatic region of construction per GOST 16350-80
		, etc.	, * and *
_______________ * Corresponds to the original. — Note by “KODEKS”.
St/3kp	GOST 535-88	2	-	-
St/3ps,	GOST 535-88	2	4	-
St/3sp
20	GOST 1050-88	+	-	-
09G2S	GOST 19281-89	6	6	6
10G2S1	GOST 19281-89	6	6	6

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For fastening building structures and equipment, if provided for by the All-Union Standards for Technological Design (ONTP).

For bolts with diameter up to 24 mm incl.

For bolts with diameter up to 48 mm incl.

For bolts with diameter 56 mm and more; for smaller diameters — subject to technical and economic justification.

The ”+” sign means that the steel category and requirements for it need not be specified in the design; the ”-” sign means that this steel grade should not be used in the specified climatic region.

(Amended edition, Amendment No. 1).

2.2.1. Bolt studs may be manufactured from other steel grades whose mechanical properties are not lower than those of the steel grades specified in Table 1.

2.2.2, 2.2.3, 2.3, 2.3.1, 2.3.2 (Deleted, Amendment No. 1).

2.4. Studs of constructional bolts in all climatic regions shall be manufactured from steel grade St3kp2 per GOST 535-88.

2.4.1. The steel grade for studs of constructional bolts, if the latter are subject to verification against seismic effects and effects arising under emergency equipment conditions, shall be assigned as for studs of load-bearing bolts (clause 2.2).

2.5. The design cross-sectional area of studs (at the thread), depending on the nominal thread diameter, shall be taken according to the reference appendix.

2.6. Nuts and couplings of bolts shall be manufactured from the same steel grades as the studs. The use of corresponding steels of category 2 is permitted.

2.7. Washers and plugs shall be manufactured from steel grade 20 per GOST 1050-88 or grade S235 per GOST 27772-88; bushings — from carbon steel grade St3kp2 per GOST 535-88; collets and pipes — from any steel grade of group B per GOST 10705-80 and GOST 10706-76.

2.8. Cast anchor plates for type 2, version 3 bolts shall be manufactured from grey cast iron grade SCh15 per GOST 1412-85, and for type 4, version 2 bolts — from steel grade 25L, meeting the requirements for casting group II per GOST 977-88.

(Amended edition, Amendment No. 1).

2.9. By agreement between the consumer and the manufacturer, studs with an increased length of the threaded part may be manufactured.

2.10. The appearance of studs and nuts shall meet the requirements for product grade C per GOST 1759.0-87.

(Amended edition, Amendment No. 1).

3. Set composition

3.1. Bolts shall be supplied by the manufacturer as a complete set in accordance with Figure 1 of GOST 24379.1-80.

3.1. The composition of the bolt set shall comply with Table 2.

Table 2

Bolt type	Type	Bolt name	Parts and assembly units of the set	Quantity
1	1	Bent bolts	1. Threaded stud (item 1)	1
			2. Washer	1
			3. Nut per GOST 5915-70	2
	2		1. Threaded stud (item 2)	1
			2. Washer	1
			3. Nut per GOST 5915-70	2
2	1	Bolts with anchor plate	1. Threaded stud (item 3)	1
			2. Anchor plate (item 11)	1
			3. Washer	1
			4. Nut per GOST 5915-70	4
	2		1. Threaded stud (item 4)	1
			2. Anchor plate (item 11)	1
			3. Washer	1
			4. Nut per GOST 10605-72	4
	3		1. Threaded stud (item 4)	1
			2. Anchor plate (item 12)	1
			3. Washer	2
			4. Nut per GOST 10605-72	3
3	1	Composite bolts	1. Threaded stud (item 3)	1
			2. Threaded stud (item 5)	1
			3. Coupling (item 13)	1
			4. Anchor plate (item 11)	1
			5. Washer	1
			6. Nut per GOST 5915-70	4
	2		1. Threaded stud (item 4)	1
			2. Threaded stud (item 5)	1
			3. Coupling (item 13)	1
			4. Anchor plate (item 11)	1
			5. Washer	1
			6. Nut per GOST 10605-72	4
4	1	Removable bolts	1. Threaded stud (item 5)	1
			2. Anchor reinforcement bar (item 14, version 1)	1
			3. Washer	1
			4. Nut per GOST 5915-70	2
	2		1. Threaded stud (item 6)	1
			2. Anchor reinforcement bar (item 14, version 2)	1
			3. Washer	1
			4. Nut per GOST 10605-72	2
	3		1. Threaded stud (item 6)	1
			2. Anchor reinforcement bar (item 14, version 3)	1
			3. Washer	1
			4. Nut per GOST 10605-72	2
5	-	Straight bolts	1. Threaded stud (item 7)	1
			2. Washer	1
			3. Nut per GOST 5915-70	2
6	1	Bolts with conical end	1. Threaded stud (item 8)	1
			2. Expanding collet (item 15)	1
			3. Washer	1
			4. Nut per GOST 5915-70	2
	2		1. Threaded stud (item 9)	1
			2. Conical sleeve (item 16)	1
			3. Washer	1
			4. Nut per GOST 5915-70	2
	3		1. Threaded stud (item 10)	1
			2. Washer	1
			3. Nut per GOST 5915-70	2

(Amended edition, Amendment No. 1).

3.2. By agreement between the customer and the manufacturer, bolts may be supplied separately by parts and assembly units.

4. Acceptance rules

4.1. Bolts shall be accepted by the manufacturer’s technical inspection department to verify their compliance with the requirements of this standard and GOST 24379.1-80.

4.2. Bolts shall be accepted in batches consisting of items with the same designation. The batch size is established by agreement between the customer and the manufacturer. In mass production, a batch comprises items manufactured by the plant within no more than one day.

4.3. To verify that bolts comply with the requirements of this standard and GOST 24379.1-80, 3 samples are selected from the batch.

4.4. If, during inspection of the selected bolts, at least one bolt is found not to comply with the requirements of this standard and GOST 24379.1-80, a double quantity of bolts shall be selected from the same batch and re-inspected. If the results of the re-inspection are unsatisfactory, the batch is rejected.

4.5. The rules for accepting bolts based on appearance and dimensions, depending on the batch volume, shall comply with those specified in GOST 17769-83.

4.6. A batch of items is considered accepted if the inspection establishes that all bolt parameters comply with those specified in this standard and GOST 24379.1-80.

4.7. The customer has the right to perform quality control of the bolts, observing the acceptance rules and applying the inspection methods established by this standard.

4.8. At the customer’s request, the bolt studs shall be tested for breaking load, tensile strength and impact toughness.

4.9. The results of the acceptance inspection of bolts shall be documented in a report in accordance with the established procedure.

5. Inspection methods

5.1. The mechanical properties of the bolts shall satisfy the relevant requirements of the standards for the materials from which they are made. The quality of the material used for the bolts shall be certified by the suppliers’ certificates.

5.2. Inspection of the thread, deviations of linear dimensions, form and position of part surfaces from nominal values, as well as surface roughness, shall be performed in accordance with GOST 1759.1-82 and GOST 1759.2-82.

5.3. Dimensions not limited by tolerance values are not inspected; their compliance is ensured by the manufacturing process.

5.4. Testing of studs for breaking load, tensile strength and impact toughness shall be carried out according to the procedure of GOST 1759.4-87. 3 studs from the batch are subjected to testing.

5.5. The appearance of the bolts and their parts is inspected visually without the use of magnifying instruments.

6. Marking, packaging, transportation and storage

6.1. The end face of the studs shall bear a mark indicating the nominal thread diameter of the stud in mm and the stud length in cm. For studs with a diameter of M12, the mark may be applied to a tag attached by wire to the set of studs. For studs intended for bolts used at a design winter outdoor temperature below 40 °C, the letters KhL shall additionally be indicated in the mark.

(Amended edition, Amendment No. 1).

6.2. On anchor reinforcement bars, the mark shall be applied to the outer surface of the pipe at the middle of its length. The mark shall indicate the nominal thread diameter of the stud in mm and the pipe length in cm.

6.3. On anchor plates, the mark shall be applied to the plane of the plate. The mark shall indicate the nominal thread diameter of the stud and the size of the square plate or the outer diameter of the round plate in mm.

6.4. On couplings, conical sleeves and collets, the mark shall be applied to the outer surface of the item. The mark shall indicate the nominal thread diameter in mm of the stud for which the item is intended.

6.5. All other marking requirements shall be in accordance with GOST 1759.0-87.

6.6. Before packaging, the threaded parts of the bolts shall be coated with PVK grease per GOST 19537-83 and wrapped in paper per GOST 515-77. At the customer’s request, the bolt studs (except the thread) may be coated with BT-99 varnish per GOST 8017-74. The varnish coating must be removed before installing the bolts in the foundation.

6.7. All other rules for packaging items and marking transport containers shall be in accordance with GOST 18160-72.

6.8. Each batch of items shall be accompanied by a quality passport per GOST 2.601-68, which shall indicate: the name and address of the manufacturer or its trademark; the batch number; the item designation; the item’s set composition; the date of manufacture; and the net weight of the batch.

Note. The quality passport may be placed inside the container.

6.9. Bolts and their parts may be transported by any mode of transport. Reliable securing and protection against mechanical damage shall be ensured.

6.10. Transportation of items in containers without packaging is not permitted.

6.11. Bolts shall be stored in warehouses sorted by type, version and size and shall be protected from contamination. The air in the storage room must not contain traces of aggressive gases that cause corrosion of the bolts.

7. Manufacturer’s warranty

7.1. The manufacturer guarantees that the bolts comply with the requirements of this standard provided that the transportation and storage conditions are observed.

Appendix (informative). Design cross-sectional area of bolts

Nominal thread diameter of the stud, mm	Design cross-sectional area, cm
12	0.84
16	1.57
20	2.45
24	3.52
30	5.60
36	8.16
42	11.20
48	14.72
56	20.30
64	26.76
72	34.60
80	43.44
90	55.91
100	69.95
110	85.56
125	111.91
140	141.81

(Amended edition, Amendment No. 1).