Partition Wall Stud Placement and Joint Base Member for Fire Resistance
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Solution Overview
Problem
Conventional partition walls with a 60-minute fire-resistance rating face challenges in maintaining effective fire resistance due to heated air leakage through lateral joints, which complicates the construction process and reduces the fire resistance capability, especially since they require multiple layers of fire-resistant materials.
Innovation Solution
A partition wall design featuring multiple wall studs and single-layer gypsum boards with a joint base member having a T-letter cross-section, where the gypsum boards are screwed only to the wall studs and not to the joint base member, or are screwed to both with different screws, to prevent heated air leakage through lateral joints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple layers of fire-resistant covering material are used to prevent heated air leakage through lateral joints, then fire resistance capability is improved, but construction time and effort increase
Solution Approach 1:
The partition wall is divided into multiple independent layers (first wall with first and second fire-resistant coverings, second wall with third and fourth fire-resistant coverings) with staggered joint positions. This segmentation ensures that heated air cannot leak through continuous gaps while keeping each layer's installation straightforward and time-efficient.
Solution Approach 2:
The solution transitions from a single-layer configuration to a multi-layer configuration with layers arranged in both vertical and horizontal dimensions. The joint positions are offset between layers, creating a three-dimensional staggered pattern that blocks heated air leakage paths without requiring excessive construction time.
2Reliability
If four or more layers of fire-resistant covering material are arranged with offset joints to prevent heated air leakage, then fire resistance capability is improved, but device complexity increases
Solution Approach 1:
The complex multi-layer structure is segmented into two independent walls (first wall and second wall), each containing two fire-resistant coverings. This segmentation simplifies the overall structure by treating each wall as a separate assembly with standardized joint offset patterns, reducing the perceived complexity while maintaining fire resistance capability.
3Ease of operation
If a single layer of fire-resistant covering material is used with wall studs on the back side of vertical joints, then workability is improved, but heated air leakage occurs through lateral joints
Solution Approach 1:
Instead of placing wall studs only on the back side of vertical joints as in conventional designs, this invention places wall studs on the back side of lateral joints as well. This inverted approach to stud placement effectively seals lateral joints against heated air leakage while maintaining the simplicity of single-layer construction and good workability.
Data Source
AI summary
A fire-resistant partition wall includes wall studs and first and second walls each including gypsum boards with vertical and lateral joints. The wall studs are on the back side of the vertical joints. A joint base member is provided at the lateral joints. The gypsum boards, the joint base member, and the wall studs are not screwed with a common screw, and (a) the gypsum boards are screwed to only the wall studs and are not screwed to the joint base member, and the joint base member is fixed to the lateral joint position by being inserted between the gypsum boards and the wall studs, or (b) the gypsum boards are screwed to the wall studs and to the joint base member with different screws, and the joint base member is fixed to the lateral joint position by being inserted between the gypsum boards and the wall studs.