Integral Lifting System for Assembled Members
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current lifting technologies for assembled structures in civil engineering, such as tower cranes and self-propelled cranes, are inadequate for efficiently lifting large, heavy prefabricated members with high precision and stability, requiring more advanced equipment that can handle great tonnage and provide reliable connection to building bodies.
Innovation Solution
An integral lifting system comprising multiple vertical stand columns, transverse rail beams, an operation trolley, a jib crane, lifting mechanical arms, and a hydraulic jacking mechanism, which allows for stable and precise lifting of assembled members by distributing the load and ensuring reliable connection to the building through a network of steel grooves, support sheets, and hydraulic systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional tower cranes or self-propelled cranes are used for lifting assembled members, then lifting operation can be performed, but lifting stability and precision are insufficient for great-tonnage members
Solution Approach 1:
The lifting system is divided into multiple independent vertical stand columns (at least four) that are distributed around the building perimeter. Each stand column operates independently to support and lift portions of the assembled members, providing stable and precise lifting for great-tonnage components while distributing the structural complexity across multiple modular units rather than requiring a single complex crane system
Solution Approach 2:
The invention combines multiple lifting functions into an integrated system where vertical stand columns, transverse rail beams, operation trolleys, and lifting mechanisms work together as a coordinated whole. This merged system provides unified control and stable lifting for large-scale assembled members, achieving reliability through the synergistic operation of combined components rather than separate lifting operations
2Power
If multiple tower cranes are deployed to handle great tonnage, then lifting capacity is sufficient, but construction management complexity increases
Solution Approach 1:
The vertical stand columns are designed as multi-functional structures that serve both as structural supports for the lifting system and as guided pathways for the operation trolleys. Each stand column integrates multiple functions (support, guidance, and lifting coordination) into a single structure, eliminating the need for multiple separate tower cranes and reducing construction management complexity while maintaining sufficient lifting capacity
3Ease of operation
If self-propelled cranes are used for flexibility, then mobility is improved, but lifting height is limited and tower crane matching is required
Solution Approach 1:
The operation trolleys are designed to move dynamically along the transverse rail beams that span between vertical stand columns. This dynamic positioning system allows the lifting points to be adjusted to various positions along the rail beams, providing construction flexibility similar to self-propelled cranes while achieving greater lifting heights through the vertical stand columns' elevation, eliminating the need for tower crane matching
4Manufacturing precision
If traditional lifting equipment is used, then lifting operation can be performed, but installation precision and connection reliability with building body are insufficient
Solution Approach 1:
The transverse rail beams serve as intermediary structures that connect the vertical stand columns and provide a stable, precisely-positioned track for the operation trolleys. This intermediary system ensures that lifting operations occur at precise, predetermined locations with high accuracy, and that the assembled members are positioned with the required precision for reliable connection to the building body, overcoming the precision limitations of traditional lifting equipment
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables fast, stable, and safe lifting of heavy assembled members, accommodating various sizes and positions, with a high safety coefficient and efficient installation process, reducing site occupation and improving construction efficiency.
Implementation Method 1
A hydraulic jacking mechanism is disposed at bottom portions of the vertical stand columns
Data Source
AI summary
Disclosed are an integral lifting system and lifting method for assembled members. The integral lifting system includes fixing mechanisms and more than four vertical stand columns. The four vertical stand columns are located at four corners of a building, the building is located in a region encircled by the vertical stand columns, a transverse rail beam is disposed between every two vertical stand columns, one end of the transverse rail beam is mounted at the top of one vertical stand column, and the other end is mounted on the top of the other stand column. The transverse rail beam is provided with an operation trolley, a jib crane is disposed on an upper surface of the operation trolley, and a lifting mechanical arm is disposed on an outer side surface of the operation trolley. A hydraulic jacking mechanism is disposed at the bottoms of the vertical stand columns.