T/CFSA 03-2016 Active Group standards

T/CFSA 03-2016 Independent support application technical regulations

Publish Date: 2016-05-16 Implement Date: 2016-07-01 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/CFSA 03-2016

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Forestry

ICS Name: Other building materials

Publish Date: 2016-05-16

Implement Date: 2016-07-01

Scope

1.0.1 In order to ensure that independent supports are technically advanced, economically reasonable, and safe and practical in design, fabrication, construction application, and acceptance, this specification is formulated. 1.0.2 This specification applies to projects using independent supports in the construction of cast-in-place concrete structures, such as buildings, bridges, and other civil engineering projects. 1.0.3 The design, fabrication, construction application, and acceptance of independent supports shall comply with this specification and the provisions of the relevant national standards currently in force. 3.1.1 Independent supports shall consist of an inner tube and an outer tube. The length of the support is adjusted by extending or retracting the inner and outer tubes. The inner tube shall be provided with pin holes spaced 100–150 mm apart, into which straight steel pins or return steel pins are inserted. The upper end of the outer sleeve shall be machined with threads or welded with threaded pipes, and equipped with annular nuts or tubular nuts for fine adjustment of the support length, with the adjustment range being ≥50 mm greater than the spacing of the pin holes. When the support rod is a single tube, its upper or lower end shall be provided with a screw for adjusting the support length. 3.1.2 The top of the independent support shall be equipped with a support head, the selection of which shall comply with the following requirements. 1. When using the early removal method for construction, early removal support heads shall be preferentially selected; 2. When using the conventional method for construction, U-shaped support heads or four-claw support heads shall be selected; 3. When it is necessary to fully weld the support joints, the welding material shall be cleaned and free from defects such as incomplete welding, sand inclusion, bite marks, and cracks; 5. The surface of the components and fittings shall be treated with galvan