Method for measuring inclination of large-head and small-head cylinders of ancient building wood structure
A large and small head, wooden structure technology, applied in the direction of measuring inclination, measuring devices, surveying and navigation, etc., can solve the problems of difficult operation of the azimuth method, and achieve the effect of improving accuracy and reliability
Pending Publication Date: 2021-11-19
福建省建研工程检测有限公司 +1
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[0003] Among the existing measurement methods mentioned above, the three-point method often has a large error in fitting the circle, while the azimuth method is not easy to operate in actual engineering
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[0046] The following will be combined with Figure 1-4 The technical solutions of the present invention are clearly and completely described in the specific embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0047] The invention relates to a method for measuring the inclination of large and small cylinders of ancient building wooden structures, comprising the following steps:
[0048] Step 1. Group the wooden columns in the building in pairs along the axial direction, select 2 wooden columns, set up the total station 1, use the built-in coordinate system of the total station 1 to perform three-dimensional coordinate measurement, and set the origin of the coordinate system on the site; Select 2 turning points at appropriate positions and post reflective sheets;
[0049] Step 2. Use the total station 1 to...
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The invention provides a method for measuring inclination of a large-head cylinder and a small-head cylinder of an ancient building wood structure. The method comprises the following steps of: taking two to-be-measured wooden columns as a group, selecting the to-be-measured wooden columns in transverse and longitudinal axis directions of a building, arranging a total station on an engineering site, and setting a station I of the total station as an observation original point; arranging two turning points by using reflecting sheets; measuring the to-be-measured wooden columns by using the total station, wherein the measurement is carried out at two section heights, the lower horizontal section is close to the bottom parts of the wooden columns, and the upper horizontal section is close to the top parts of the wooden columns; sequentially measuring the space coordinates of n points of the two horizontal sections; according to the measured space coordinates of the stations, calculating the circle center coordinates of the horizontal sections in sequence; establishing a right-hand rule coordinate system with a connecting line direction of the two wooden columns as the Y direction and a direction perpendicular to the connecting line direction as the X direction, and calculating inclination components and inclination rates of the two wooden columns in the X direction and the Y direction sequentially. According to the method, the inclination components can be conveniently calculated, and the accuracy and reliability of measurement are improved.
Description
【Technical field】 [0001] The invention relates to the technical field of civil engineering health monitoring and engineering measurement, in particular to a method for measuring the inclination of large and small cylinders of ancient building wooden structures. 【Background technique】 [0002] Ancient buildings tilted due to factors such as disrepair and foundation settlement. There are two main difficulties in measuring the inclination of wooden columns in wooden structures: the first is that the natural size of the wood, and the processing deviation of the wood in the processing process makes it difficult to measure the centroid of the section; the second is that the direction of the column inclination is arbitrary, and the In engineering, the location is often based on the axis of the building, so the calculation of the inclination component is more complicated. For circular cross-section columns, the commonly used method at present is to use the azimuth method or the thr...
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CPCG01C9/00
Inventor 杨伟张禄滨吴铭昊张羽吴晓静庄后铭
Owner 福建省建研工程检测有限公司