General: the criteria required by the technical standards for this project, the design drawings, the calculation book, the list of works, the test report, the test and inspection report, the certificate of eligibility, the performance report, the sample, etc., are provided before the contract is concluded after the successful tender。
I. Basis of design
The acceptance and quality of the earthquake-resistant support products provided by the tender unit, as well as the accompanying anchor products, shall meet (not limited to) the requirements of the following standards and national standards in force。
1. Design specifications for earthquake resistance in building equipment and electrical engineering (gb50981-2014)
2. General technical conditions for the construction of electrical and electrical equipment for earthquake-resistant slings (cj/t 476 – 2015)
3. Regulation on the quality of construction works for drainage and heating (gb50242 – 2016)
4. Regulation on the quality of ventilation and air conditioning works (gb50243 – 2016)
5. Guidelines for the construction and inspection of automatic spraying of fire systems (gb50261 - 2017)
6. Regulation on the quality of construction and electrical works (gb50303-2015)
7. Design code for building resistance to earthquakes (gb50011 - 2010 (2016 edition))
8. Standard classification for earthquake-resistant construction work (gb 50233 - 2008)
9. Design specifications for non-structured components for earthquake resistance (jgj 339 – 2015)
10. Building structure loads code (gb5009-2012)
11. Concrete structure design code (gb50010 - 2010 (2015 edition))
12. Concrete structural reinforcement design specifications (gb50367-2013)
13. Indoor pipelines and hangers 03s402
14. Metals, non-metal windpipe slings 19k112
15. Cable bridge installation 04d701-3
16. Official construction blueprints and approved design change documents
Where state-of-the-art national and local standards, norms, etc. Are available, they should be implemented in accordance with the most up-to-date standards, norms, etc. And, where multiple norms are inconsistent with standards and requirements on the same issue, in accordance with higher standards and requirements。
Ii. Scope of supply of earthquake-resistant stands
The supply range of the supplier should include anchor solids, reinforced cranes, anti-shock connectors and anti-shock tilt support, and the integrity of the product must be guaranteed。
Iii. Responsibility of supplements
1) provide a full set of anti-earthquake cranes and assume full responsibility for the products provided, in accordance with the technical requirements provided in this technical specifications。
2) the performance of the products provided must be assured and in accordance with the requirements of the relevant legislation。
3) provides a complete set of materials such as the technical manual for the installation of the seismic archipelago, the guide for the use of the anti-squake archipelago installation, the guidance manual for the on-site installation of the anti-squake archipelago, relevant standards, design drawings, etc. To ensure the safety of products and provide quality services。
(4) the supplier shall guarantee that the equipment is not defective as a result of design, process and/or materials, and shall agree to be repaired or replaced at the expense of the supplier for a period of time specified in the contract from the date of departure of the plant in the event of defects in any part. Once the requirements have been met, the buyer's administration will be transferred to it in accordance with the acceptance criteria established by the parties。
5) in order to ensure the safety quality of the project, during the latter stage of implementation, the plant will be responsible for the installation and maintenance of the site by means of detailed calculations of the resistance to seismic stairwell stress and material selection, the provision of structural calculations, the provision of detailed designs and calculations for each stairwell。
The plant provided a detailed list of the quantities of work that were accurately calculated。
7) the anti-earthquake support plant must have its own production plant, and the product is not allowed to be processed by a brand。
Iv. Inspection, testing and certification
1) inspection institutions
A. Pre-plant suppliers perform verifications based on national, industry-related standards。
B. Validation by the purchaser in accordance with the relevant criteria and contract。
C. Inspections, environmental protection, safety, etc. Are carried out in accordance with laws and regulations。
2) test project and test contents and related reports, certificates
A. Provides a load mechanics test report for various components of an anti-earthquake hanger (including tank steel, connectors, spring nuts or trough locks, etc.), a stretching test report, a neutral salt mist test report, a zinc-plating thickness test report, a link locktip fatigue test report, a link-resistant or shear-resistant maximum load test report, etc. All reports should have cma or cnas markers endorsed by authoritative national monitoring bodies。
B. Provision of plant inspection reports, product certification for major parts and materials。
C. The remaining undetected testing requirements are detailed in the relevant rules in the “vi. Technical requirements for earthquake-resistant cranes”。
V. Scope of use of anti-earthquake slings
In accordance with the requirements of gb509881-2014, the design specifications for earthquake resistance in building equipment and electrical engineering, the range of use of various specialized earthquake resistance slings is shown below。
Heating specialties: pyrotechnics, accident ventilation and related equipment。
Equipment and pipelines using anti-earthquake slings should meet the relevant requirements in the design guidelines for building electric power resilient design gb509881-2014。
Vi. Technical requirements for anti-earthquake slings
1) the selection of a hanger shall meet the requirements of gb509881-2014 related to the design of earthquake resistance for construction machines。
2) all components forming the hanger shall be in the form of components of the finished product, which shall be constructed to connect to the fastening and shall be easily fitted in the form of a physical combination of the various columns or hangers, without holes or welding。
3) the anti-earthquake hanger limits of the piping shall be designed for the temperature-preservation dimensions of the piping and shall not limit the degree shift resulting from thermal swelling of the piping。
4) the scaffolding system shall be designed to withstand earthquakes and adopt the finished shelf system in accordance with the building electrical engineering anti-smock design guidelines (gb50981-2014). The installation of all spare parts is achieved by mechanical bites, and any means of absorption by friction of the fittings is strictly prohibited in order to ensure reliable connectivity throughout the system。
5) the frame of the hanger system, the material of the hanger, the anti-corruption coating using thermal impregnation of zinc, and the thickness of the coating of zinc shall meet the technical requirements and test methods of the metal-covered steel-forms thermal impregnation of zinc, chapter 6 "plating requirements" in gb/t 13912-2002。
6) c tank steel with cross-section sizes of 41mm*21mm, 41mm*41mm, 41mm*52mm, 41mm*72mm, 41mm*82mm, 41mm*124mm etc. Used in the anti-earthquake hanger system; standard configurations with a length of 3000mm or 600mm, to facilitate the installation, maintenance and extension of subsequent piping; the steel wall thickness of the tank should be 2. 0mm。
7) the c tank steel used in the anti-earthquake hanger system shall be used in a cold and thin process, with an axle-to-heavy side to enhance cross-section rigidity and to ensure that the transect of the trough is not deformed during transport, cutting and installation. On the edge of the convection and at the corresponding point of contact with the cone of the cone, there shall be continuously mechanically processed teeth, not less than 0. 9 mm deep and not more than 5 mm sharp at the point of the tooth, to ensure that the steel of the convection is mechanically gnawed, and to prevent the hysteria of the subway from causing the sprawl to go loose. Any mode of connection by friction to bear the stress is strictly prohibited。
8) in order to ensure a safe resonance, shock resistance and slide resistance after complete installation of the entire system, the connection of a tank steel to a slurry lock and bolt nut should be able to resist at least 2 million fatigue loads and provide laboratory reports of fatigue from national testing agencies。
9) the tooth-wield pole uses the q235 steel, screw strength of 4. 8, as prescribed by the national standard carbon structure steel gb/t70-2006, and shall also conform to the requirements of gb/t15389 and provide a report of the tensile strength test issued by the national testing agency。
10) inert rubber internal cushions are required to be attached to a pipe with metal pipes in order to achieve insulation, insulation, noise reduction, and a noise reduction report is required for supply。
11) the whole set-up system should have fire-resilient level test reports to ensure a certain fire-resilient time frame (not less than 3h) in the event of a fire, and must provide a fire-resilient test report from a national or international authority monitoring agency。
12) the anchor is to be fitted with a post-extension anchor that is adapted to the function of cracking concrete, the technical requirements being:
A. Should be carried by a key between the perforation of the bottom of the anchor and the anchor and conform to the requirements of the relevant national regulation for post-enrichment anchoring of concrete structures reinforced design specifications (gb50367-2013)。
B. Bidders shall provide test reports for all test items (e. G. Stretch performance tests) that conform to the relevant provisions of the “section 8 test rules” of the “mechanical anchorage for concrete” (jg/t160-2017)。
C. Thermal impregnated zinc precipitating corrosive treatment of the anchor, which shall not have an average thickness of less than 45 m。
D. An anchor bolt steel grade of 8. 8 to ensure a good mechanical performance。
(e) a product qualification certificate and instructions, including a product quality certificate for anchor rods (containing steel numbers, size specifications, etc.), a construction process and protocols。
F. In order to ensure the quality of the installation, the post-extension anchor shall be completed by the use of special drills or drums capable of achieving caustic perforation in the concrete base。
13) the crossbars, vertical poles, ankles, connecting nodes, tubes and anchors shall meet the security requirements of the receptor, and the crossbar shall not be scratched beyond the length of the crossbar 1/200. The plant shall perform mechanics calculations for each shelf according to the actual load and shall provide mechanical calculations for each shelf。
14) horizontal arm-strings shall use a finished product-stamp arm that is welded to the whole of the tank steel to ensure the safety of the stress of the arm structure. Unsafe arm-strength structures consisting only of tank steel and connectors shall not be used。
15) in order to ensure that pipeline adjustments are required, the structural carrying capacity should be considered not less than 20 per cent of the balance in the calculation of the crane pole and the main bearing。
16) to ensure the safety and security of the entire slab system, all tank steel, connectors, tubes etc. Are branded。
Vii. Technological bottom-up and delivery
1) b shall carry out the work in accordance with the construction drawings, design requirements and related operating protocols, technical protocols, technical specifications, construction specifications, acceptance protocols, construction and acceptance specifications; shall perform the work in strict conformity with the relevant project quality standards, the mandatory control standards for the quality of the work, the criteria for the evaluation of the works, the criteria for the evaluation of the quality of the work, the criteria for the evaluation of the quality of the work, the criteria for the evaluation of the quality of the work, the criteria for the evaluation of the quality of the work, the criteria for the evaluation of the quality of the work, the criteria for the evaluation of the quality of the work, the criteria for the evaluation of the quality of the work, and the criteria for the evaluation of the quality of the work, the criteria for the quality of the work, and 100 per cent of the eligibility rate for the sub-project。
2) supply programme requirements: within 15 days of receipt of the purchase order, the supplier shall provide the owner with the construction programme drawings and product instructions for confirmation by the owner and shall obtain written reply and certification of manufacture under stamp prior to the start of manufacture. These drawings should include the type, quantity, relevant mechanics calculation parameters of all anti-earthquake slings and should provide the design, technical requirements for installation and acceptance criteria。
Viii. Submission of tender samples
Bid parties are required to cooperate in the provision of samples in accordance with the call or mail notification requirements of the tender party. The form of the anti-earthquake connector component must be consistent with the schematics required by article 2. 1. 6 of the design instructions for electrical and electrical construction (gb50981-2014) (see figure below) to meet the normative requirements。
