Bridge rotation construction three-dimensional linear control technology based on BIM technology

Abstract

The invention discloses a bridge rotation construction three-dimensional linear control technology based on a BIM technology. The whole procedure comprises the steps that a bridge three-dimensional space model is built through BIM software; before rotation construction, three-dimensional space coordinates of nine control points of a main beam, a bridge pier, an upper rotary disc and a lower rotarydisc are calculated; temporary locking to the upper rotary disc and the lower is removed, and the T-shaped structure is subjected to small-angle rotation construction in the clockwise direction; thepre-camber value, the plane offset value and the axial compression value of a rotation main beam and a lower structure are extracted; the main bridge control point coordinates are calculated after small-angle rotation is in place; three-dimensional space coordinate measured values of the main bridge control points after small-angle rotation are input; a three-dimensional coordinate transformationmatrix considering rotation construction errors is calculated; and through rotation deviation rectifying equipment, the main beam, the bridge pier, the upper rotary disc and the lower rotary disc aresubjected to horizontal and vertical three-dimensional deviation rectifying to the reasonable range. According to the invention, the BIM technology is adopted to guide a three-dimensional deviation rectifying method to conduct horizontal and vertical three-dimensional deviation rectifying and twisting on the rotation main beam and the lower structure which for error adjusting, the rotation construction efficiency is improved, and the construction error is substantially decreased.

Description

technical field [0001] The invention relates to the technical field of bridge auxiliary design and swivel construction in traffic infrastructure construction, and specifically relates to a three-dimensional linear control technology for bridge swivel construction based on BIM technology. Background technique [0002] When highways, urban roads, and rail transit cross each other on the plane, in order not to affect the normal operation of the crossed roads, plane swivel construction is one of the more advanced construction schemes; Construction by swivel to the design position. [0003] However, bridge swivel construction has the characteristics of high technological content, high precision requirements, and difficult construction, which often lead to large construction errors; large construction errors and difficult control of alignment are problems that need to be solved urgently in swivel construction at this stage; in addition, the alignment of swivel construction The co...

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Problems solved by technology

[0003] However, bridge swivel construction has the characteristics of high technological content, high precision requirements, and difficult construction, which often lead to large construction errors; large construction errors and difficult control of alignment are problems that need to be solved urgently in swivel construction at this stage; in addition, the alignment of swivel construction The control also has the following deficiencies: 1. It can only realize the construction control of the main girder rotation, but fails to realize the integration of design, manufacture, and rotation control; 2. It is difficult to set up the measurement data and linear error judgment and alarm mechanism. Judgment and control of human error in on-site measurement

[0004] Based on three-dimensional information technology, BIM (Building Information Model) integrates engineering data models of various related information of engineering projects, which can support the whole life cycle of engineering planning, design, construction and later operation; although BIM technology in civil buildings The application has a certain scale, but it is very limited in the bridge with special-shaped and complex structural space

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