Recent content by tai99

Could it be buckling? For such case, there should have indication of concrete crashing.

-1, from another angle :)

As pointed out by fattdad, I would be hesitant to utilize cohesion for this type of application, especially when setup is at/near the ground surface. If it couldn't be avoid, the use of a greater safety factor should be considered.

Without resorting to code, my take is to look into the importance of each platform, from the point of operation and/or worker's safety. Categorize the platform as essential, or non-essential facility, then design each accordingly.

BA: Yes. If the operation mechanics permits it, the supporting scheme shown by you reduces the negative moment and minimizes the stability concerns.

A pier consists of 4 faces - upstream, downstream, and two side faces. The long direction is usually aligned in direction of flow, however, skewed piers happen quite often also. So, other than head-on forces, there is also side pressures. Depending on the usage of the flow channel, you may need...

Pay attention to potential future excavation activities around the deadman, and in route the tie backs to be installed. You need to setup warning system similar to protection of underground utilities.

Does all the cables need to be vertical? Can it be tilted, and utilize pulley to control up/down movement, if so required?

It will be very difficult to achieve the goal directly through structural means, rather, you should consider the inclusion of mechanical means. For instance, set equipment on hydraulic system to maintain its balance. Once a suitable device/setup is determined, the remaining task is merely to...

First of all, you shall do a research on the previous soil report for the faulty frost wall. If without success, I will assume sandy/gravel fill to come up a low passive coefficient for trail estimate use. If it works, great. Otherwise, you will need to order a soil testing to get the actual...

The precision you are seeking is far beyond the anticipated tollerances of general civil-structural works. As suggested before, you will need more expert helps from other sources -the owner, equipment vendor, engineering consultant in related field...

The problem is not the foundation. It (the machine) needs a support system that can retain its original position upon any type of loading. Maybe you can find help from ME and/or IE.

You'll find answer to your question by thinking in terms of propagation of cracks on deformed/deflected beams. Note that without confinement, the concrete performs poorly under tension. Also do not forget the relationship of shear and diagonal tension.