Device and method for measuring distance between round tube steel stand columns

The invention relates to a device and a method for measuring the distance between round tube steel stand columns. The device comprises an operation box, one side face of the operation box is an arc face, an opening is formed in the side face opposite to the arc face, a laser range finder is installed in the opening, and laser emitted by the laser range finder is emitted out in the direction away from the arc face from the opening; and a level bubble consistent with the laser range finder in levelness is arranged on the upper surface of the operation box. The level bubble is used for guaranteeing that laser emitted by the laser range finder is in the horizontal direction, the numerical value measured by the laser range finder is accurate at the moment, the device has the advantages of beingconvenient to erect and high in positioning precision, and the installation efficiency and the installation precision of the steel beam are greatly improved. 本发明涉及一种圆管钢立柱间距测量装置及测量方法，该装置包括操作盒，所述操作盒的一个侧面为圆弧面，与所述圆弧面相对的侧面上设有一开口，