Title:
METHOD FOR BLOCKING SPECIAL-SHAPED OPENING OF CONDUIT SHAFT NOT PERMITTING SUSPENDED MOLD CONSTRUCTION
Document Type and Number:
WIPO Patent Application WO/2021/051817
Kind Code:
A1
Abstract:
Disclosed is a method for blocking a special-shaped opening of a conduit shaft that does not permit suspended mold construction. The method comprises: installing, from bottom to top in a conduit shaft, a conduit to a specified floor level, disposing the conduit so as to be higher than the floor level by 300 mm, and then simultaneously blocking an opening; sequentially cleaning and measuring the opening after the conduit is completely installed; cutting a coated fireproof plate according to size of the opening, and preparing a U-shaped bent-edge support steel plate recess; at the floor of the opening to be blocked, installing a conduit from top to bottom, and installing the U-shaped bent-edge support steel plate recess; applying a fireproof sealant all over the periphery of the coated fireproof plate, placing the same on the U-shaped bent-edge support steel plate recess, and pressing the same; applying the fireproof sealant to the surface of a gap between the placed coated fireproof plate, an opening edge, and a conduit edge; applying a fireproof coating evenly on a surface of the coated fireproof plate; applying a fireproof coating on a surface of the support steel plate recess; and completing fireproof blocking on the opening, and then installing a subsequent conduit moving upwards. The invention improves efficiency of blocking an opening between floors, and ensures fireproof performance.
Inventors:
ZHANG SHANSHAN (CN)
YUAN XIAOBING (CN)
QU CAIXIA (CN)
YUAN XIAOBING (CN)
QU CAIXIA (CN)
Application Number:
PCT/CN2020/087496
Publication Date:
March 25, 2021
Filing Date:
April 28, 2020
Export Citation:
Assignee:
THE SECOND CONSTRUCTION CO LTD OF CHINA CONSTRUCTION THIRD ENG BUREAU (CN)
International Classes:
E04F17/08; E04B1/94; E04G23/02
Foreign References:
| CN110616877A | 2019-12-27 | |||
| CN109457998A | 2019-03-12 | |||
| CN102936954A | 2013-02-20 | |||
| CN207999066U | 2018-10-23 | |||
| CN106677355A | 2017-05-17 | |||
| JPH09228619A | 1997-09-02 |
Attorney, Agent or Firm:
WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD. (CN)
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