Rolling Scaffolding

Scaffolding is an indispensable temporary supporting structure in construction projects. It is mainly used to provide a safe working platform for workers, while assisting in material transportation and equipment installation. The following is a detailed analysis of scaffolding:

I. Core Functions

Safety Protection

Prevent workers from falling at heights and provide a stable working surface.

Isolate the construction area to avoid injuries caused by falling objects.

Construction Assistance

Support operations such as formwork erection and concrete pouring.

Facilitate vertical material transportation (e.g., through channels or hoisting platforms built with scaffolding).

Equipment Installation

Provide operating space for exterior wall decoration, curtain wall installation, pipeline laying, and other works.

II. Common Types

Classification by Structural Form

Coupler-type Steel Pipe Scaffolding: Steel pipes are connected by couplers, featuring high flexibility. However, it requires manual assembly, resulting in low efficiency.

Cup-lock Scaffolding: Adopts cup-lock joints, enabling fast assembly and high load-bearing capacity. It is often used in large-scale projects.

Disk-lock Scaffolding: Equipped with disk-lock joints, it has strong stability and is suitable for high-rise buildings or heavy-load scenarios.

Portal Scaffolding: Composed of portal-shaped frames, it has a modular design for quick erection. It is suitable for low-rise buildings or indoor construction.

Cantilever Scaffolding: Fixed to the building structure via cantilever beams, it is applicable to the exterior construction of high-rise buildings.

Attached Lifting Scaffolding (Climbing Scaffolding): Can automatically climb as the building rises, reducing repeated erection and improving efficiency.

Classification by Application

Structural Scaffolding: Used for main structure construction (e.g., concrete pouring, steel bar binding).

Decoration Scaffolding: Applied in light operations such as interior and exterior wall decoration, and curtain wall installation.

Support Scaffolding: Temporarily supports formwork, equipment, or heavy components.

III. Key Materials

Steel Pipes: Welded steel pipes with specifications of Φ48×3.6mm or Φ60×3.2mm are commonly used, which must comply with national standards (e.g., GB/T 13793).

Couplers: Including right-angle couplers, swivel couplers, and butt-joint couplers, which must meet the standards for anti-slip and anti-damage performance.

Scaffold Planks: Wooden, bamboo, or steel scaffold planks are available, requiring anti-slip and fire-resistant properties.

Safety Nets: Dense-mesh safety nets (flame-retardant type) are used for enclosure to prevent falling objects.

Wall Connectors: Fix the scaffolding to the building structure to ensure overall stability.

IV. Key Points of Safety Specifications

Design and Calculation

Stability checks must be conducted based on loads (e.g., construction loads, wind loads) to ensure the load-bearing capacity meets requirements.

Erection Requirements

The foundation must be level and solid, and the spacing of vertical poles and horizontal poles must comply with specifications (e.g., the spacing of vertical poles ≤ 1.5m, the step spacing of horizontal poles ≤ 1.8m).

Spacing of wall connectors: vertical direction ≤ 4m, horizontal direction ≤ 6m (dense arrangement is required for high-rise buildings).

Usage Restrictions

Overloading is strictly prohibited (e.g., construction load ≤ 3kN/m², decoration load ≤ 2kN/m²).

Construction operations must be stopped and reinforcement measures taken in severe weather (e.g., gale force 6 or above).

Inspection and Maintenance

Regularly inspect the tightness of couplers, the verticality of vertical poles, and the firmness of wall connectors.

Timely replace damaged or corroded components.

V. Innovation Trends

Intelligent Management

Sensors are used to monitor the stress and deformation of scaffolding, providing real-time early warnings for potential safety hazards.

Modular Design

Prefabricated standardized components are adopted to improve erection efficiency (e.g., disk-lock scaffolding).

Environmentally Friendly Materials

Promote the use of recyclable steel and aluminum alloy scaffolding to reduce resource waste.

Robot Assistance

Automated erection equipment (e.g., automatic lifting systems for climbing scaffolding) is used to reduce manual risks.