New　steel-concrete-steel　sandwich　beams　with　interlocked　angle　connectors　(SCSSB-IACs)　were　first　proposed,　and　their　static　behaviours　were　studied　via　conducting　two-point　loading　tests.　The　failure　mode,　load-displacement　response,　resistance,　and　stiffness　of　the　SCSSB-IACs　were　obtained.　Moreover,　the　influences　of　thickness　of　steel　faceplate,　spacing　of　IACs,　thickness　of　concrete　core,　shear-span　ratio　and　interlocking　bolts　on　static　performances　of　the　SCSSB-IACs　were　discussed.　Two　failure　modes　of　the　SCSSB-IACs　were　observed　from　the　static　tests,　including　flexural　and　shear　failure.　Moreover,　test　results　indicated　that　the　resistance　and　stiffness　of　the　SCSSB-IACs　were　significantly　affected　by　the　thickness　of　steel　faceplate,　spacing　of　IACs　and　thickness　of　concrete　core.　In　addition,　the　load-strain　curves　and　deformation　shapes　of　the　SCSSB-IACs　were　obtained　and　discussed.　Finally,　analytical　models　were　developed　for　predicting　elastic　stiffness　and　resistance　of　the　SCSSB-IACs.　The　analytical　models　were　also　validated　against　the　test　data.