T/SCQA 316-2022 Active Group standards

T/SCQA 316-2022 Drilled card connection prestressed concrete composite square pile

Publish Date: 2022-11-25 Implement Date: 2022-12-25 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SCQA 316-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Building materials

ICS Name: Concrete and concrete products

Publish Date: 2022-11-25

Implement Date: 2022-12-25

Scope

Main technical content: The pre-stressed concrete composite square piles in this atlas are made up of solid square piles with the same cross-section, partially hollow square columns, and hollow square piles, which are mechanically connected by snap-fit connectors. They are suitable for low-pile foundation of general industrial and civil buildings with a design service life of 50 years. When the technical conditions meet the standards in this atlas, the foundation design of railways, highways, bridges, ports, water conservancy, and municipal engineering can refer to and use it, but it should also comply with the provisions of the current relevant national standards. The composite square piles in this atlas are suitable for areas with a seismic fortification intensity of 7 degrees and below. The composite square piles in this atlas are suitable for non-liquefied soil layers and are mainly used to withstand vertical compressive and tensile loads. When subjected to horizontal loads at the same time, designers should consider factors such as site conditions, engineering structure types, load sizes, and construction conditions, and select or design them after calculation and analysis. The snap-fit mechanical connection is a type of mechanical connection, in which snap-fit connectors and high-strength connecting rods are screwed into large and small sleeves, and then the high-strength connecting rods are inserted into the snap-fit connectors to form a connection device with overall resistance. Partially hollow square piles are prestressed square piles made by the core-removal process. The pile body is composed of a reinforced solid head and a hollow part. The composite square piles are composite piles made up of solid square piles with the same cross-section, partially hollow square piles, and hollow square piles, which are mechanically connected by snap-fit connectors.