Hey there! Have you watched any of the beginner videos at SketchUp Campus? They are a good place to start for getting familiar with some basic SketchUp fundamentals.
What I would do to approach the arches, is to get the dimensions down for each item of the arch in 2D (on the ground plane, draw the shapes for each item) and then use the push/pull tool to extrude each shape up.
I would create components for each element of the arch. It looks like for each full arch, you would make the following components:
The inner arch
The outer arch
On each end, there are two longer connectors - make one connector and then copy it.
The connectors in between look shorter than the outside connectors and look to be uniform in size. If you make one inner connector, make it a component, and copy it then you will be able to edit all the inner connectors at once.
Here’s a bit of reading on components: Creating a Basic Component | SketchUp Help
Here’s a bit of reading on how to copy/paste items easily: 그린 개체 복사하기 | SketchUp Help
Now I’m at my day job and don’t have access to what I need to show you how to draw this but, with the given dimensions, start with an online calculator to figure out the included angle for an arc with a 5m radius and 5m length. It happens to be 57.296°.
Use the Arc tool (not the 2-Point Arc) to draw an arc with a 5m radius and 57.296° included angle. After that you can use Offset on that arc to create the other edge of the inner board as well as the edges for the outer board. Use the Line tool to connect the ends of the arcs to create faces. then, if you want to make this 3D, Push/Pull to width. Make each bow a component. Rotate the outer one about the center of the arc (I used the origin for this) to raise the bottom up 10cm.
This shows it slightly longer that the 5m ??
But if this a chord length as you just drew how is the to supported ?
With a semi-circle the diameter [d] needs to be just under 6.4m for a half-circumference of 10m long…
10 = Pi * d / 2
d = 2 * 10 / Pi = 6.37m
@JakobHovman, you’ve not drawn the correct arc and you’re working too hard to get what you got. The length of the arc in this case is 5 meters, you’re showing the chord at 5 meters. Those are very different dimensions.
@TIG, The arc isn’t a quarter of a circle, though.
This still needs the purlins but this is generally what a bow shed looks like. Much like a Gothic arch.