Adjustable Primary Support Beam for Slab Formwork
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Solution Overview
Problem
Existing primary support beams for slab formwork lack adjustability in length, requiring suppliers to maintain multiple beam lengths, and often fail to allow satisfactory attachment of secondary beams along their entire length, complicating the formation of a stable support structure.
Innovation Solution
A primary support beam with two sections that slide relative to each other, featuring continuous side chutes for secure attachment of secondary beams and a locking mechanism to prevent accidental disengagement, ensuring reliable length adjustment and stable secondary beam attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the primary support beam is made with fixed length, then the structure is simple and reliable, but multiple references must be kept in stock to adapt to different slab dimensions
Solution Approach 1:
The primary support beam is divided into two telescopic sections (first section and second section) that can slide relative to each other, allowing the beam to be adjusted to different lengths by extending or retracting the sections, thereby eliminating the need to stock multiple fixed-length beam references
Solution Approach 2:
The beam transitions from a static fixed-length structure to a dynamic adjustable-length structure through telescopic sections that can slide and lock at various positions, enabling adaptation to different slab dimensions while maintaining structural integrity
2Length of moving object
If the primary support beam uses telescopic sections without continuous side chutes, then the length can be adjusted, but secondary beams cannot be satisfactorily attached along the entire length
Solution Approach 1:
The lateral receiving chute of the second section is nested within the lateral receiving chute of the first section, creating a continuous side chute structure that allows secondary beams to be attached along the entire extended length of the primary support beam while maintaining structural continuity
Solution Approach 2:
The continuous side chute structure serves multiple functions: it allows attachment of secondary beams at any position along the extended beam length, provides structural continuity, and maintains alignment of secondary beams across the telescopic joint
3Stability of the object's composition
If the telescopic sections are held collinear by locking means, then the length is fixed for stability, but the sections cannot be adjusted
Solution Approach 1:
The locking means enable the beam to transition between dynamic (adjustable) and static (locked) states, providing stability when needed while allowing length adjustment when required, thus resolving the contradiction between stability and adaptability
Data Source
AI summary
Primary support beam (1) for slab formwork or similar, extending along a first longitudinal direction (II), comprising a first section (2) and a second section (3) arranged to slide relative to each other along the first longitudinal direction (II) by means of sliding means (4). Respective lateral receiving channels (2a, 2b, 3a, 3b) for secondary beams are provided on each side of the first (2) and second (3) sections, and slide one inside the other with a permanent overlap relative to each other along the first longitudinal direction (1-1), regardless of the relative positions of the first (2) and second (3) sections relative to each other in sliding.