Porosity Detection Method in Concrete Member Covered With Steel Plate Using Thermal Image and Construction Management Method of Concrete Member Covered With Steel Plate Using The Same

摘要

The present invention relates to a method for detecting voids in a steel plate-coated concrete composite member using thermal imaging and a construction management method for a steel plate-coated concrete composite member using the same. The method for detecting voids inside a steel plate-covered concrete composite member according to the present invention includes: a first step of setting a reference temperature difference for a temperature difference between a void and a non-void inside the steel plate-covered concrete composite member according to a site temperature and a concrete placement temperature; A second step of measuring the site temperature and the concrete placing temperature before construction of the steel plate-covered concrete composite member, and extracting a reference temperature difference corresponding to the measured site temperature and the concrete placing temperature from the reference temperature difference set in the first step; During the construction of the steel plate-covered concrete composite member, the surface temperature of the steel plate at the place where the concrete is placed is measured with a thermal image, and the section where the temperature difference from the measured steel plate surface temperature to the surrounding area is greater than the reference temperature difference extracted in the second step is determined as a void. Step 3; Including, in the first step and the second step, the site temperature is set to the outside air temperature at the site or the average temperature of the surface temperature of the steel plate measured by thermal imaging before concrete placement at the site. After detecting the void in this way, it is possible to eliminate the void by adding a section determined as void and compacting it.