L-Shaped Shear Wall Corner Transition Block

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Solution Overview

Problem

Existing L-shaped shear wall modules have a smaller cross-sectional area and lower strength at the corner due to a reinforced concrete concreting cavity, affecting the firmness and load-bearing capacity of the wall.

Innovation Solution

An L-shaped shear wall module with a corner transition block that protrudes towards the outer pattern plate, increasing the cross-sectional area of the concreting cavity and enhancing the corner's strength, which can be cut off after concrete solidification, ensuring a right-angled corner and reduced indoor space occupation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a conventional L-shaped shear wall module is used, then the construction speed and thermal insulation are improved, but the corner strength and firmness deteriorate due to smaller cross-sectional area

Engineering Contradiction:

Improveconstruction speedVSAvoidcorner strength

Core Design Contradiction:

ProductivityVSStrength

Solution Approach 1:

The corner transition block is pre-installed on the inner pattern plate before concrete pouring, creating a preliminary structure that guides concrete flow and ensures complete filling of the corner region. This preliminary action prevents voids and ensures uniform concrete distribution, resolving the strength issue while maintaining construction efficiency

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The corner transition block acts as an intermediary element between the inner and outer pattern plates at the L-shaped corner. It mediates the concrete flow and distribution, ensuring that the corner region receives adequate concrete material to achieve the required cross-sectional area and strength, while not interfering with the overall construction speed

Inventive Principle:

Principle #24Intermediary (Mediator)

2Strength

If the corner cross-sectional area is increased to improve strength, then the load-bearing capacity is improved, but the indoor space occupation increases

Engineering Contradiction:

Improveload-bearing capacityVSAvoidindoor space occupation

Core Design Contradiction:

StrengthVSVolume of moving object

Solution Approach 1:

The corner transition block provides localized reinforcement only at the corner region where strength is needed, rather than increasing the cross-sectional area throughout the entire wall. This local quality approach ensures adequate load-bearing capacity at the critical corner joint while minimizing impact on indoor space occupation in other areas

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The corner transition block extends in the thickness dimension of the wall rather than protruding into the indoor space dimension. By utilizing the available thickness dimension, the design achieves increased corner strength without compromising indoor space, effectively changing the dimensional approach to problem-solving

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Stability of the object's composition

If the concreting cavity cross section is enlarged, then the firmness is improved, but the concrete material consumption increases

Engineering Contradiction:

ImprovefirmnessVSAvoidconcrete material consumption

Core Design Contradiction:

Stability of the object's compositionVSQuantity of substance

Solution Approach 1:

The corner transition block is pre-installed to create a preliminary structure that guides and confines concrete flow during pouring. This preliminary action ensures that concrete material is distributed efficiently and uniformly throughout the corner region, achieving complete filling and firmness while minimizing material waste through optimized concrete placement

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11473298B2Special L-shaped column shear wall module, shear wall and construction method thereof

Publication Date: 2022.10.18 XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

AI summary

An L-shaped shear wall module including an L-shaped outer pattern plate, an L-shaped inner pattern plate, and connectors connected between the L-shaped outer pattern plate and the L-shaped inner pattern plate. The L-shaped outer pattern plate 100 and the L-shaped inner pattern plate 200 are arranged in parallel to each other. The L-shaped inner pattern plate includes a first inner pattern plate and a second inner pattern plate which are perpendicular to each other. A corner transition block is disposed at a corner of the L-shaped inner pattern plate. The corner transition block has a protruding surface protruding towards the L-shaped outer pattern plate. The protruding surface of the corner transition block and the inner surface of the L-shaped outer pattern plate jointly enclose a concreting cavity at the corners for concreting reinforced concrete. The present application also provides a shear wall and a construction method thereof.