All along I have been blaming I have no chance to gain technical knowledge by just working solely as a project engineer. Today, our spm had proved me wrong. He himself is a PE, by working as a Project Engineer ever since he graduated. Again I am impressed by his working attitude, professionalism, capability and ability as a Civil Engineer. Ultimately, all the moaning and groaning I have been having could only reflect how incapable am I.
Site management lesson 101: Apart from getting on track on how well or unwell is the contractor catching up on the site progress, I have to learn the subsequent activity from the on-going site work. For example, to connect the roof slab casting work to maxbond waterproofing membrane laying work. If any roof slab casting was delayed, the succeeding activity of laying waterproofing membrane by maxbond would be detained. This could create a waste outcome for on-holding work by maxbond. Another example is HuaTiong where the site work is dependent on heavy machinery, where the excavators are highly mobilized and will be removed from site if there is any idling work. Hence, I have to try to link all activities to make sure all work sequences could flow smoothly.
In addition, though it is contractually inappropriate, I have to engage the contractor on who will be holding the ball on certain activity. For instance, HT will be responsible on breaking the LSS and spoils, following the ball would be at WH hands to trim the pipes and rebars at the Dwall. I got to have all the information in hand, and to make sure every sub contractor knows what is their responsibility, and know at which stage they would have to commit the work at full capacity.
Civil Engineering knowledge 101: The design of double strutting is due to the effective length from the second moment of Area, in which is the distance between two struts. This however will have a breakeven point where there is a maximum capacity of the buckling load of a strut. Also, the double waler beam design is now a common practice. A stiffener is usually installed at the waler beam which is align to the web of the strut to have an effective load transfer. In this case, the both stiffeners at the waler beams have to be in a line.
To monitor the compressive strength of a strut is holding, we will be using Strain Gauge (SG) and Load Cell (LC), SG has 4 sensors, one sensor as each web of the strut; which LC is placed in between flanges of two struts. Usually, LC could only be installed when there is a support of runner beam holding the struts. Both instruments are used for verification of the compression readings, counter checking the precise reading for calibration. SG is usually be installed at 1/3 of the span of a strut as mid-span would usually encountering the maximum bending moment, and hence gives the maximum readings; and not too close to the support due to the load would be distributed to the load spreaders of the strut, consequently the reading would not be accurate.
So far for today.
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