I have tried to get a similar sketchup-like effect. Here are some settings I have changed:
The lighting in sketchup is very diffuse compared to ArchiCAD so I have increased the Ambient Light % and Sunlight Contribution to Ambient % up to 100. menu View>3D View Mode> 3D Projection Settings>More Sun and increase the values.
To increases lineweight thickness: menu View>3D View Mode>3D Window Settings; Set lineweight to thick and I usually change the background color to a pale blue. Some people have created a blue and green gradient in a photo or paint program and used that as a background to somewhat simulate the sketchup ground and sky.
You will also want to create a pen set with very thick lineweights that are primarily black if you want the objects to have that bold quality.
HTH