WPML allows you to translate pages built with shortcode-based page builders. Create your design in the original language and then use WPML to translate all the textual contents of a page.
Ultimate Addons for Visual Composer is a Visual Composer extension that provides more than 40 elements that come handy when designing your pages.
You can translate the Ultimate Addons for Visual Composer modules in the very same way you translate the original Visual Composer modules.
This is a quick video on how the integration works:
You can also check out our detailed tutorial on how to translate pages built with Visual Composer.