Spatial K-Type Inclined Column Grid Testing for Concrete Compactness
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Solution Overview
Problem
The complex structure of diagrid cross nodes and multiple internal partitions in spatial K-type inclined column grids pose challenges in ensuring the compactness of concrete casting and testing, which are crucial for the mechanical properties of super high-rise buildings.
Innovation Solution
A testing device comprising an upper half of the diagrid cross node, lower half of the grid inclined column, overturn-preventing supporting frame, anchoring limiting basis, peripheral framework platform, and imaging detection device, which allows for vertical support, column-base fixation, and concrete quality assessment through ultrasonic CT imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If complex diagrid cross node structure with multiple internal partitions is used, then mechanical properties and lateral stiffness are improved, but concrete casting compactness and testing difficulty worsen
Solution Approach 1:
The diagrid cross node is divided into multiple internal partitions to improve mechanical properties and lateral stiffness. The segmentation principle allows the complex structure to be broken down into manageable sections while maintaining overall structural integrity, making it possible to cast concrete in segments and test each partition separately for compactness
Solution Approach 2:
Testing devices are introduced as intermediary tools to measure concrete compactness within the complex partitions. These devices include pressure sensors, temperature sensors, and vibration sensors that can be embedded in the concrete or positioned against the steel pipe exterior to non-invasively assess casting quality without disrupting the complex internal structure
2Strength
If steel pipe with internal concrete filling is used, then stiffness and bearing performance are improved, but construction complexity and quality control difficulty increase
Solution Approach 1:
Testing devices are installed in advance during the construction process, before concrete casting is complete. This preliminary action allows for real-time monitoring of concrete filling quality, enabling immediate detection and correction of issues rather than discovering problems after construction is finished
Solution Approach 2:
The testing devices provide continuous feedback on concrete compactness, temperature, and other parameters during the casting process. This feedback mechanism allows construction workers to adjust casting operations in real-time to ensure quality requirements are met, reducing the need for complex post-construction testing and remediation
3Productivity
If lateral casting method is used for internal concrete, then construction efficiency is improved, but ensuring uniform compactness throughout the structure becomes more difficult
Solution Approach 1:
The testing devices are designed to be dynamic and adaptable, capable of moving to different positions along the steel pipe or adjusting their measurement parameters in real-time. This allows comprehensive coverage of the entire concrete volume during lateral casting, ensuring uniform compactness is achieved throughout the structure despite the efficient but potentially uneven casting process
Solution Approach 2:
Multiple testing parameters are monitored simultaneously, including compactness, temperature, pressure, and vibration characteristics. By changing and monitoring multiple parameters rather than relying on a single measurement, the system can detect variations in concrete quality and ensure uniform compactness throughout the lateral casting process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures effective concrete lateral casting and compactness detection, guaranteeing the mechanical properties of spatial K-type inclined column grids by simulating the construction process and ensuring design strength and compactness requirements, thereby improving construction feasibility and efficiency.
Implementation Method 1
imaging detection device comprises a measuring line layout system and an ultrasonic CT imaging system
Implementation Method 2
ultrasonic CT imaging system
Data Source
AI summary
A testing device for the internal lateral casting of spatial K-type inclined column grid and the testing method thereof comprises steps: constructing a testing device for the internal lateral casting of spatial K-type inclined column grid; selecting the testing location of the inclined column cross-section; obtaining imaging results of the inclined column cross-section testing locations; determining the concrete quality and taking supplementary testing. The clear module and force transferring route carry out vertical support and column-base fixed limiting measure through overturn-preventing supporting frame and anchoring limiting basis, realize concrete lateral casting and intensity distribution imaging testing through peripheral framework platform and imaging detection device, to effectively improve the lateral casting technology and guarantee bearing performance, realize internal concrete lateral casting construction technology simulation and concrete compactness detection processing simulation, and reach the design intensity and compactness requirement of concrete insides grid inclined column and diagrid cross node.