Parallel Seismic Test 1 2 3 The Parallel Seismic Test is a non-destructive test used to determine the pile length when the details of the foundation are no longer available, or when the constructed pile length is questionable. Test equipment consists of accelerometers, an impact hammer, and the data acquisition system (DAQ). The hammer is […]
Ferro Scan test and covermeter 1 2 3 4 5 6 The Ferro Scan Test or Electromagnetic Cover Measurement is one of the non-destructive tests used to determine the positions and the quantity of reinforcement steel inside concrete members. This test can be used to inspect old buildings which do not have structural drawings or […]
Large machine operations can cause vibration to the supporting platforms as well as the sheltering structures. Vibration is measured, and evaluation is made accordingly. In an example case of this, undertaken by RE, when the machines in the premises started operating, strong vibration was observed in the sheltering structure, and large deformation was visualized in long-slender steel columns. The reason was found to be an accidentally matching between machine vibration frequency and 1st natural frequency of the columns. Resonance therefore occurred.
A 4-point bend test was conducted on five patterns of metal sheets (totalling 30 samples). The testing equipment has been developed to test a specimen with a wide surface area with the maximum load carrying capacity of 3 tons. The proof load and the maximum load were recorded and converted into uniformly distributed load. Also, the relationship between the load and the deflection was reported in the test results.
RE investigated the structural health condition of a waste water treatment plant in Samut Prakarn, Thailand.
Structural renovation has become more and more common in recent years. Due to the high concentration in urban areas, most land has already been occupied by existing structures which later on may be renovated for different uses. However, due to deterioration over time or lack of maintenance, many existing structures may not be in a good condition for renovation which can then raise safety concerns. Thus, a load test is deemed necessary.
RC Floor and Beam load test in new factory
In one case undertaken by RE, it was found that machine vibrations during the operations caused strong vibrations to the floor underneath. Thus, accelerometers were used to capture real-time floor and machine vibrations for all axes.
The RE team investigated the condition of spun piles. It was found that the piles displayed cracking along the length of the piles. The team, then, installed equipment to detect the rate of crack-opening in the piles and collected data on ambient vibration of the problematic pile foundations.
The Pull Out Test is one of the methods used to inspect an anchor’s load carrying capacity. This test determines the tensile strength capacity. The tested load will be applied in the parallel direction to the anchor using a hydraulic pump with a load measuring system. Displacement of the tested anchor is measured by a displacement transducer which shows real-time data. The Pull Out Test conducted by RE complies with the ASTM E488-10 standard.
