Climbing Formwork–Elevator Integration for Crane-Free Vertical Lifting
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Solution Overview
Problem
Existing building site elevators require the use of lifting cranes and manual raising of supporting structures for each elevation, which is inefficient and costly.
Innovation Solution
Integrate an elevator system with a vertically movable elevator machine platform that is connected to or suspended from a climbing formwork platform, allowing it to ascend jointly with the formwork platform without additional supporting structures, using winches, ropes, or chains with deflection pulleys for variable length lifting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a traditional building site elevator with separate supporting structures is used, then the elevator can be installed independently, but additional supporting structures and lifting cranes are required for each elevation, increasing device complexity and installation cost
Solution Approach 1:
The patent combines the elevator supporting structures with the climbing formwork platform, integrating two previously separate systems into one unified structure. The elevator machine platform is suspended from the climbing formwork platform, eliminating the need for separate supporting structures and reducing overall device complexity while lowering installation costs.
2Productivity
If manual raising of supporting structures is performed for each elevation, then the elevator can be positioned at different levels, but the process is time-consuming and reduces productivity
Solution Approach 1:
The climbing formwork platform continuously ascends with the building construction, and the elevator machine platform is suspended from it, allowing the elevator to automatically reach different elevations without interruption. This eliminates the need for repeated manual raising operations and maintains continuous productive action.
Solution Approach 2:
The elevator machine platform is preliminarily suspended from the climbing formwork platform at a lower elevation, and as the formwork platform ascends with each construction stage, the elevator platform is automatically raised to the next elevation without requiring separate raising operations.
3Ease of operation
If lifting cranes are used for each elevation, then the elevator can be raised to required heights, but the process increases operational complexity and cost
Solution Approach 1:
The climbing formwork platform serves multiple functions: it acts as both the construction formwork and the supporting structure for the elevator machine platform. This multi-functional design eliminates the need for separate lifting cranes and simplifies operational procedures.
4Area of stationary object
If separate supporting structures are used for each elevation, then the elevator can be installed, but space utilization is reduced due to additional structural elements
Solution Approach 1:
The elevator machine platform is nested within or suspended from the climbing formwork platform structure, allowing the elevator system to occupy the same vertical space as the construction platform without requiring additional horizontal space for separate supporting structures.
Data Source
AI summary
A building site device includes a climbing formwork platform for the floor-by-floor production of concreting portions of a building core having at least one elevator shaft. An elevator system has an elevator machine platform vertically movable in the elevator shaft. In order to minimize the use of lifting cranes and the manual raising of supporting structures, the elevator machine platform can be moved jointly with the climbing formwork platform.