Method for measuring mounting inclination angle of one-side-inclined structure

Abstract

The invention relates to a method for measuring the mounting inclination angle of a one-side-inclined structure, which comprises the following steps: on the one-side-inclined structure with a wider inclined plane, drawing a measurement auxiliary line by using the structural center line and designing an included angle according to plotting paper, and marking out the auxiliary line with a red triangle; on the one-side-inclined structure with a lathy structure and a smaller inclined plane, welding an auxiliary measuring steel plate close to the top of the structure or the interface part, drawing a measurement auxiliary line, and marking out the auxiliary line with a red triangle; according to the measurement auxiliary line drawn on the inclined plane of the structure, calculating the actual distance between the auxiliary line and a basic cross center line, and projecting a measuring point on the ground; projecting a measuring point of the central axial line in a structural perpendicularity direction on the ground by a measuring line in the structural perpendicularity direction according to the basic cross center line; and using two theodolites to perform bidirectional measurement and control, wherein the perpendicularity is measured and controlled on one side, while the inclination angle is measured and controlled on the other side, and the theodolites are erected on the ground projection points to adjust the structure so that the measurement auxiliary lines are superposed with the cross curves of the bidirectional theodolites. The method can effectively reduce the deviation and improve the accuracy of the inclination angle.

Description

technical field [0001] The invention relates to an installation method of an inclined structure in construction engineering, in particular to a method for measuring an installation inclination angle of a single-side inclined structure. Background technique [0002] There are single-segment or multi-segment unilateral inclined structures with wide inclined surface, slender structure and small inclined surface. The structure is installed on the concrete foundation, and the structure and the horizontal ground form a one-way inclined elevation angle. The structure installation accuracy is high. The main difficulty is that the tilt angle of the structure cannot be directly measured during installation by using the structure form. In the past, in the installation of single-sided tilted structures, the theodolite was often used to control its verticality. The method of hanging wire pendant is generally used to control the angle of tilt angle detection. This method It is greatly aff...

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Problems solved by technology

[0002] There are single-segment or multi-segment unilateral inclined structures with wide inclined surface, slender structure and small inclined surface. The structure is installed on the concrete foundation, and the structure and the horizontal ground form a one-way inclined elevation angle. The structure installation accuracy is high. The main difficulty is that the tilt angle of the structure cannot be directly measured during installation by using the structure form. In the past, in the installation of single-sided tilted structures, the theodolite was often used to control its verticality. The method of hanging wire pendant is generally used to control the angle of tilt angle detection. This method It is greatly affected by environmental factors, the inclination angle is difficult to control, and the deviation value is large

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