Modular On-Site Mobile Facility With Retractable Shielding
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Solution Overview
Problem
Existing construction cover facilities for buildings and underground stations are difficult to mount and costly due to the need for strong, permanent structures to withstand wind and snow loads, and large cranes are required for assembly, especially when covering large areas or existing structures.
Innovation Solution
An on-site mobile facility with a modular design featuring a shielding arrangement that can be easily retracted to reduce wind load, comprising base structures, legs, and modules with a guide system for sliding elements and cover material, allowing wind to pass through and enabling use of smaller cranes for mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a strong, permanent covering facility is used to withstand wind and snow loads, then the facility can bear wide free span and withstand high winds, but the facility becomes difficult to mount and requires large, expensive cranes
Solution Approach 1:
The facility is divided into multiple modular units that can be assembled separately and then connected. Each module can be mounted independently using smaller cranes, and the modules are joined together to form the complete covering structure, eliminating the need for large cranes to lift the entire structure at once
Solution Approach 2:
The facility incorporates movable shielding arrangements that can be retracted or adjusted based on wind conditions. This dynamic capability allows the structure to adapt to environmental loads, reducing the permanent strength requirements while maintaining safety
2Ease of manufacture
If a light-weight facility design is used to enable easier mounting with smaller cranes, then mounting costs are reduced, but the facility may not withstand high wind loads
Solution Approach 1:
The shielding arrangements are designed to be movable rather than fixed, allowing them to be retracted when wind loads increase. This dynamic response reduces the structural strength requirements while maintaining light-weight construction, as the structure doesn't need to permanently resist maximum wind forces
Solution Approach 2:
The facility allows changes in its operational parameters by adjusting the position of shielding arrangements based on environmental conditions. This parameter adjustment capability enables a light-weight structure to achieve the performance of a heavier structure by adapting to varying load conditions
3Object-affected harmful factors
If the shielding arrangement is fixed to fully cover side areas, then protection from wind, rain, and snow is maximized, but the wind load on the facility increases during heavy winds
Solution Approach 1:
The shielding arrangements are designed to be movable along the beams, allowing them to be retracted partially or fully depending on wind conditions. During heavy winds, the shielding can be moved to allow wind to pass through, reducing the force on the structure while still providing protection when conditions are calm
Data Source
Figure 1
Figure 1A
Figure 2
AI summary
The present invention relates to an on-site mobile facility for shielding from wind exerting a wind load on the facility, rain or snow when constructing, renovating or assembling a building, a bridge or a wind turbine, the on-site mobile facility covering an area having boundaries and corners, comprising: a plurality of modules, each module having a module roof structure, the module roof structures being mounted as a facility roof structure connecting horizontal beams of the module roof structures, the facility roof structure having edges and the horizontal beams defining the edges which are supported by legs, the legs and the beams defining side areas, the side areas being covered by a shielding arrangement, the shielding arrangement of the side area comprising elongated elements, and cover material, such as tarpaulin, being arranged between the elements and connected therewith, wherein the on-site mobile facility further comprises a guide system for guiding the shielding arrangement of the side area, the guide system being slidably connecting the elements with one of the beams or the adjacent legs so as to at least partly uncover the side areas, so that wind is allowed to pass through the facility by passing through the uncovered part of the side area and out through an uncovered part of the side area on another side of the on-site mobile facility to reduce the wind load on the facility in order for the facility to remain unaffected by the wind load during heavy winds. The present invention also relates to a facility mounting method for mounting the on-site mobile facility according to the present invention.