Basically, you are looking to install a crash bollard with a mailbox mounted on top. This is a detail of one. Typically, it is restrained at the ground by pavement, but isn’t required. The bollard itself is a 4″ diameter schedule 40 metal pipe or 4″ A36 steel pipe. Some designers also add rebar (4-#4 …
Continue reading “Can you make a mailbox post out of cement as a deterrent for cars hitting it?”
Short answer; maintenance. Most people will close the door during rain, do something to cover a broken window even if they don’t fix it, and try to get rid of insects and rodents. None of this happens in abandoned buildings, and it added up quickly.
Simple answer; no. For the most part, only rooms where people are expected to gather for some length of time. This number doesn’t represent the actual amount of people that can be packed into a space, but the amount of people in the space at a predefined density. It is to be used as a …
Continue reading “Are all buildings required to have a sign showing the maximum occupancy?”
They are the same, but humans tend to think of vertical distances as farther than horizontal ones.
No. Imagine you are floating a large thin cookie on a lake of milk. When you went to move the cookie it fractured. For some reason, you decided to mend the fracture using staples. Now remember, you’re really good at mending cookies with staples, so it is a good fix. The problem is that when …
While I like the different answers let me try this a bit more simply: Concrete is very strong in compression. Such as placing a block of it on the ground and setting a large weight on it. Concrete is comparatively weak in tension. Treat it like a rope or chain and breaks easily. Bending, which …
Depending on your use, you use separation and control joints. There are a lot of guides available that cover this subject, but it can vary quite a bit depending on use, thickness and available friction surface. Most guides will call for roughly rectangular pieces. Slabs tend towards 1:2 to 1:4 ratios on width to length. …
Continue reading “How do you mitigate autogenous shrinkage in concrete?”
In average conditions, I would expect near zero potential. Wind tends to be periodic, or very low. What you need are at least two conditions: 1. regular wind. 2. flutter. So, coastal areas or very large open areas (think great plains or ocean surface) with little height variation would work best. One problem is that …
You need to get tested. A house of this age has had some major repairs in its history. The likelihood of those timelines places it firmly in asbestos territory.
Theoretically; yes. But, it would be far from the best option. Mine clearing explosives give a large push at a distance so that mines in the blast area receive enough pressure to trigger. Building demolition is about cutting (shearing) pressures that stay precisely in their intended area to reduce any unintended results. In short, its …
Continue reading “Theoretically, could a Mine Clearing Line Charge be used to demolish buildings?”
MKDesign 