The load-bearing capacity test of the floor slab refers to the load detection of the floor slab floor by floor, and the analysis of the detection data is carried out to evaluate whether the load-bearing capacity of the floor slab meets the requirements of the code. Two common methods for detecting the bearing of floor slabs are described below.
1. Layer-by-layer load detection.
1.Preparation.
Before carrying out the load detection layer by floor, it is necessary to collect relevant information such as building design drawings and construction records to understand the structural form, material type, construction technology and other information of the building. At the same time, it is necessary to prepare testing tools and equipment, such as electronic scales, pressure sensors, data acquisition instruments, etc.
2.Select the detection point.
A representative location on the floor slab should be selected as the inspection point, and each inspection point should have good flatness and cleanliness. In general, there should be at least 3 inspection points in each room or functional area.
3.Load weights.
According to the design load and use requirements of the building, determine the weight and distribution of the loading weights. Place the pressure sensor at the detection point and place the loading weight above the sensor.
4.Data collection and processing.
The pressure sensor is monitored in real time using a data acquisition instrument, and the load data of each detection point is recorded. Through the collation and analysis of the data, the load bearing capacity and distribution of each detection point are obtained.
5.Evaluate the load-bearing capacity of the floor slab.
Based on the test data, the load-bearing capacity of the floor slab is evaluated. If the test results do not meet the requirements of the code, the floor slab needs to be reinforced or other measures need to be taken.
Second, the core drilling method detection.
1.Drill core sampling.
A representative location is selected on the floor slab for core sampling, and a certain number of core samples are taken. The number and depth of the core sample should be determined according to the structural form and material type of the building.
2.Core sample processing and testing.
The core sample will be processed and processed to meet the test requirements. Then, the core sample is placed on a pressure testing machine for testing, and the load-bearing capacity and deformation of the core sample are recorded.
3.Data analysis and evaluation.
Based on the test results, the load-bearing capacity of the floor slab is evaluated. If the test results do not meet the requirements of the code, the floor slab needs to be reinforced or other measures need to be taken.
In short, for the detection of the load-bearing capacity of the floor slab, appropriate detection methods and tools should be selected, the operation should be carried out in strict compliance with the requirements of the relevant specifications, and the test results should be accurately analyzed and evaluated. Only in this way can we ensure that the load-bearing capacity of the floor slab meets the requirements of the code, and ensure the safety and stability of the building.