Aseismic Assembly for Modular Building Curtain Walls
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Solution Overview
Problem
Existing window and curtain wall structures are prone to damage during earthquakes due to inadequate displacement absorption, leading to collisions or squeezes between the main frame and displaceable frames, resulting in damage, deformation, or falling.
Innovation Solution
An aseismic assembly is introduced, comprising a fixed member on the main frame and a movable member that connects to a displaceable frame, allowing relative movement along both horizontal and height directions, with additional features like sliding grooves and toothed gaskets for enhanced strength and installation accuracy, and a supporting member to distribute weight and prevent downward movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the curtain wall is completely fixed to the main frame, then the structural strength is improved, but the displacement absorption capability deteriorates
Solution Approach 1:
The connection between the curtain wall and main frame is transformed from a static fixed connection to a dynamic connection that allows relative movement. The sliding groove and movable member enable the curtain wall to move vertically along the main frame during earthquakes, absorbing displacement while maintaining structural integrity through friction and gravity forces.
2Ease of manufacture
If the curtain wall unit is hung on steel mount with hanger, then the ease of installation is improved, but the displacement absorption capability deteriorates
Solution Approach 1:
The hanger connection is replaced with a sliding groove mechanism that allows controlled vertical movement. The curtain wall unit can slide along the sliding groove during earthquakes, providing displacement absorption while maintaining ease of installation through the simple groove-and-slider mechanism.
3Adaptability or versatility
If the main frame undergoes large displacement during earthquake, then the displacement absorption requirement is improved, but the damage to windows or curtain wall structure worsens
Solution Approach 1:
The sliding groove acts as an intermediary mechanism between the main frame and curtain wall unit. It allows the curtain wall to move independently relative to the main frame during earthquakes, absorbing displacement while preventing direct collision and damage between the two structures.
Solution Approach 2:
The sliding groove provides a predetermined path for the curtain wall to move during earthquakes, cushioning the impact by allowing controlled movement rather than direct collision. The friction and gravity forces in the sliding groove act as cushioning mechanisms to protect the curtain wall structure.
Data Source
AI summary
An aseismic assembly and a modular building are provided in the present disclosure. The aseismic assembly is provided between a main frame and a displaceable frame spaced apart from the main frame. The aseismic assembly includes a fixed member and a movable member. The fixed member is disposed on a lower surface of the top portion of the main frame. The movable member is used to interconnect the fixed member and the displaceable frame, wherein the bottom portion of the movable member is inserted into the top portion of a post of the displaceable frame. The movable member is movable relative to the displaceable frame along a height direction of the main frame. The top portion of the movable member is connected to the fixed member. The movable member is movable relative to the fixed member along a horizontal direction.