Device for detecting bearing capacity of temporary steel trestle in building construction

The invention discloses a building construction temporary steel trestle bearing capacity detection device, relates to the technical field of building bridge bearing capacity detection devices, solves the problem that a pressure needle of a detection instrument cannot vertically abut against the bottom of a bridge to cause inaccurate measurement results, and comprises a magnetic hanging scaffold with a control switch. A magnetic rod is rotationally connected to the magnetic hanging scaffold, and a detector disc is arranged on the magnetic rod; the rotating assembly is used for rotating and adjusting the magnetic rod to enable the detector disc to be close to the bottom of the bridge; by rotationally adjusting and fixing the position of the magnetic rod, the detector disc is close to the bottom of the bridge, and under the action of the gravity ball, the position of the detector disc is automatically adjusted, so that a pressure needle of the detector disc vertically corresponds to the bottom of the bridge, det