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CN-121992956-A - Steel structure overhead working method based on scaffold tube hard protection

CN121992956ACN 121992956 ACN121992956 ACN 121992956ACN-121992956-A

Abstract

The invention discloses a steel structure high-altitude operation working method based on scaffold tube hard protection, which relates to the technical field of building construction safety and comprises the following steps of carrying out structural design and stress calculation on a protection structure according to steel structural members, wherein the protection structure is used for an anchoring device of an anti-falling device; the method comprises the steps of selecting scaffold steel pipes as bearing members, assembling the scaffold steel pipes on the ground through fasteners or connecting pieces to form a fence type hard protection structure, arranging a plurality of anchor points on the protection structure along the length direction of the fence type hard protection structure, fixedly installing the protection structure at a preset installation position of a steel beam to be hoisted, integrally hoisting the steel beam with the protection structure to a design position through hoisting equipment, completing bolt penetrating and connecting and fixing after the steel beam is in place, connecting the anchor points by operators after the steel beam is fixed, carrying out construction operation along a steel structure, dismantling and transferring the protection structure along with construction progress after the steel structure operation in the area is completed, and repeatedly using the protection structure in other steel structure areas.

Inventors

  • FENG JUN
  • HAN YONG

Assignees

  • 中国电建集团四川工程有限公司

Dates

Publication Date
20260508
Application Date
20260313

Claims (7)

  1. 1. The working method for the steel structure overhead operation based on the scaffold tube hard protection is characterized by comprising the following steps of: Step S1, carrying out structural design and stress calculation on a protective structure according to the size, the installation height and the construction working condition of a steel structural member, wherein the protective structure is used as an anchoring device of a whole-body safety belt and a self-contraction type safety hook; step S2, selecting a scaffold steel pipe as a main bearing member of the protective structure; s3, assembling the scaffold steel pipe on the ground through a fastener or a connecting piece to form a fence type hard protection structure, wherein a plurality of anchoring points are arranged along the length direction of the protection structure, and each anchoring point can be connected with a whole body safety belt or a falling protector of an operator; s4, fixedly mounting the assembled protective structure on the upper flange of the steel beam to be hoisted or a preset mounting position, so that the protective structure and the steel beam form an integrated hoisting unit; s5, integrally hoisting the steel beam with the protective structure to a designed position by using hoisting equipment, and finishing bolt penetrating and connecting and fixing after the steel beam is in place to ensure that the steel beam and the protective structure are integrally stable; S6, after the steel beam is fixed, connecting an operator to an anchoring point of the protective structure, walking along the steel structure and carrying out construction operation; and S7, after the operation of the steel structure in the area is completed, removing or transferring the protective structure along with the construction progress, and repeatedly using the protective structure in other steel structure areas.
  2. 2. The steel structure overhead working method based on the scaffold tube hard protection is characterized in that in the step S1, structural design and stress calculation are carried out on a protection structure according to the size, the installation height and the construction working condition of a steel structure member, the protection structure is used as an anchoring device of a whole-body safety belt and a self-shrinkage type safety hook, at least the dead weight load of the protection structure and the vertical impact load and the horizontal impact load generated when an operator falls are considered in the design process, and the protection structure is verified to meet the safety use requirement through structural calculation.
  3. 3. The working method of the steel structure for the high-altitude operation based on the hard protection of the scaffold tube according to claim 1, wherein in the step S2, the protection structure adopts a scaffold steel tube as a main bearing member, and the scaffold steel tube is preferably a steel tube with an outer diameter of 48-50 mm and a wall thickness of 2.3-3.0 mm.
  4. 4. The method according to claim 1, wherein in step S3, the scaffold steel pipe is assembled on the ground by fasteners or connectors to form a bar-type hard protection structure, and the protection structure is provided with a plurality of anchor points along the length direction thereof, wherein each anchor point can be connected by a whole body safety belt or a fall arrester of an operator.
  5. 5. The working method of the steel structure based on the scaffold tube hard protection according to claim 1, wherein in the step S4, the assembled protection structure is fixedly installed on the upper flange of the steel beam to be hoisted or at a preset installation position, so that the protection structure and the steel beam form an integrated hoisting unit.
  6. 6. The working method of the steel structure high-altitude operation based on the scaffold tube hard protection according to claim 1, wherein in the step S5, the steel beam with the protection structure is integrally hoisted to a design position by adopting hoisting equipment, and bolt penetrating and connecting and fixing are completed after the steel beam is in place.
  7. 7. The method according to claim 1, wherein in step S6, after the steel beam is fixed, the operator connects the whole body safety belt or the self-shrinking type fall arrester to the anchoring point of the protection structure, walks along the steel structure under the hard protection condition formed by the protection structure, and performs the construction operation.

Description

Steel structure overhead working method based on scaffold tube hard protection Technical Field The invention belongs to the technical field of building construction safety, and particularly relates to a steel structure high-altitude operation working method based on scaffold tube hard protection. Background In the steel structure engineering construction process, after the hoisting of the steel beams, the steel columns and other components is completed, operators need to carry out high-strength bolt installation, component correction, connection fixation and related supporting operation on the steel structure, and the steel structure construction process belongs to typical overhead operation, has great falling risks, and in the prior art, the steel structure overhead operation generally adopts the following protection mode: The personnel hanging cage or hanging basket working mode needs to use the crane to independently hoist the personnel hanging cage or the working platform, so that hoisting resources are occupied, the operation flow is complex, the time consumption for hoisting, positioning and adjusting is long, the movement between different areas of the steel structure is inconvenient, and the construction efficiency is low. Lifeline protection mode, namely, the lifeline is usually required to be erected at a high place, the erection period is long (PE design and COS acceptance are required to be obtained according to the requirements of the affiliated area), the falling risk exists in the erection process, and the requirement of simultaneous operation of multiple persons is difficult to meet in a short time. The existing protection mode has defects in the aspects of construction efficiency, safety and flexibility, and is difficult to meet the requirements of large-scale steel structure engineering on high efficiency, high safety and simultaneous operation of multiple persons. Therefore, it is necessary to provide a new working method for working high-place steel structures. Disclosure of Invention In order to solve the technical problems, the invention is realized by the following technical scheme: the invention relates to a steel structure overhead working method based on scaffold tube hard protection, which comprises the following steps: Step S1, carrying out structural design and stress calculation on a protective structure according to the size, the installation height and the construction working condition of a steel structural member, wherein the protective structure is used as an anchoring device of a whole-body safety belt and a self-contraction type safety hook; step S2, selecting a scaffold steel pipe as a main bearing member of the protective structure; s3, assembling the scaffold steel pipe on the ground through a fastener or a connecting piece to form a fence type hard protection structure, wherein a plurality of anchoring points are arranged along the length direction of the protection structure, and each anchoring point can be connected with a whole body safety belt or a falling protector of an operator; s4, fixedly mounting the assembled protective structure on the upper flange of the steel beam to be hoisted or a preset mounting position, so that the protective structure and the steel beam form an integrated hoisting unit; s5, integrally hoisting the steel beam with the protective structure to a designed position by using hoisting equipment, and finishing bolt penetrating and connecting and fixing after the steel beam is in place to ensure that the steel beam and the protective structure are integrally stable; S6, after the steel beam is fixed, connecting an operator to an anchoring point of the protective structure, walking along the steel structure and carrying out construction operation; and S7, after the operation of the steel structure in the area is completed, removing or transferring the protective structure along with the construction progress, and repeatedly using the protective structure in other steel structure areas. In step S1, structural design and stress calculation are performed on the protective structure according to the size, the installation height and the construction working condition of the steel structural member, the protective structure is used as an anchoring device of a whole-body safety belt and a self-contraction type safety catch, at least the dead weight load of the protective structure and the vertical impact load and the horizontal impact load generated when an operator falls are considered in the design process, and the protective structure meets the safety use requirement through structural calculation. Further, in the step S2, the protecting structure uses a scaffold steel pipe as a main bearing member, and the scaffold steel pipe is preferably a steel pipe with an outer diameter of 48-50 mm and a wall thickness of 2.3-3.0 mm. Further, in step S3, the scaffold steel pipe is assembled on the ground through the fastener or the connector to form a fe