Maisonette Apartment Double Pillar Noise Reduction and Remodeling
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Solution Overview
Problem
Conventional apartment house designs fail to effectively reduce noise between floors, leading to discomfort for residents, and also limit future remodeling due to integrated structures and rigid equipment layouts.
Innovation Solution
A maisonette-type apartment house design featuring double pillars and beams spaced apart to reduce lateral noise transmission, with a cantilever slab supported by one beam member to block impact sounds, and a duct space between pillars allowing for easy remodeling using a lightweight drywall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a wall-type structure with integrated slab and wall body is used, then construction is quick and convenient, but noise and vibration are transmitted unchanged between apartment units
Solution Approach 1:
The patent applies segmentation by dividing the integrated wall-type structure into separate components: the slab structure and the wall body are separated at the boundary between apartment units. Double pillars are installed to create a separation zone, and sound-absorbing materials are placed in the gaps between slabs and walls. This segmentation prevents noise transmission paths while maintaining construction efficiency.
2Object-affected harmful factors
If sound-absorbing material is laid thickly on slab bottom layer, then some noise is reduced, but vibration and impact loads are still transmitted through the slab structure to lower floors
Solution Approach 1:
The patent extracts the load-bearing function from the wall body by introducing double pillars that carry the slab loads independently. This allows the wall to focus on sound insulation while the pillars handle structural loads, preventing vibration transmission through the wall structure.
Solution Approach 2:
Sound-absorbing materials are introduced as intermediary elements between the slab and the wall body, and between the double pillars. These materials act as mediators that absorb impact sounds and vibrations while allowing the structural loads to be transmitted through the double pillars to the foundation.
3Object-affected harmful factors
If slab is separated from sidewall to reduce horizontal impact sound, then noise transmission is reduced, but structural rigidity and seismic resistance are compromised on upper floors
Solution Approach 1:
The patent segments the structure at the apartment unit boundaries by installing double pillars that create separation zones. This segmentation reduces horizontal noise transmission while the double pillars themselves provide structural support to maintain rigidity and seismic resistance.
Solution Approach 2:
The patent uses composite construction by combining reinforced concrete double pillars with sound-absorbing materials and drywall. This composite structure provides both structural strength for seismic resistance and acoustic insulation for noise reduction.
4Ease of manufacture
If integrated wall-type structure is used, then construction is simple, but remodeling of duct space and equipment is difficult
Solution Approach 1:
The patent segments the wall structure into modular components including drywall panels and standardized double pillar assemblies. This modular segmentation allows for easy removal and reconfiguration during remodeling while maintaining structural integrity through the permanent double pillar framework.
Solution Approach 2:
The patent creates a dynamic structure where the drywall and internal partitions can be moved or reconfigured, while the double pillars remain fixed to maintain structural stability. This allows the apartment layout to adapt to changing needs while preserving the core structural system.
Data Source
AI summary
The present invention relates to a design structure of an apartment house in which a plurality of apartment units, each of which is a maisonette in which two floors including an upper floor and a lower floor are combined into a single apartment unit, are repeatedly arranged in vertical and horizontal directions, wherein, in the design structure, each apartment unit has a living room disposed on the upper floor and a plurality of bedrooms disposed on the lower floor, double pillars spaced apart from each other are installed on side boundaries of adjacent apartment units, the double pillars include a pair of first pillars disposed inside an apartment unit and a pair of second pillars disposed outside the apartment unit and disposed inside another apartment unit adjacent thereto, a first beam member, which serves as a structure carrying a load, is connected to and installed at the first pillar, a second beam member, which serves as a structure carrying a load, is connected to and installed at the second pillar, and a double pillar connecting beam configured to connect the first pillar and the second pillar is additionally provided on a side surface of a slab of the lower floor.