Stiffness beam column joint concrete pouring compactness monitoring method based on endoscope

Abstract

The invention discloses a stiffness beam column joint concrete pouring compactness monitoring method based on an endoscope. The method comprises the steps of ereting a template; forming a hole; installing a transparent acrylic pipe; connecting the endoscope with a monitoring display device through a hard cable; pushing the endoscope to a first observation point; starting to pour the beam column concrete, and performing concrete pouring compactness monitoring at each observation part from bottom to top; observing whether the concrete poured at each observation point wraps the transparent acrylic pipe or not through the monitoring display device; when the transparent acrylic pipe is wrapped, disassembling the endoscope and the transparent acrylic pipe to complete the compactness monitoring;repeating the related steps until the compactness monitoring of all observation parts is completed; and continuously pouring the beam column concrete till the stiffness beam column joint constructionis completed. The method realizes the whole-process monitoring of the hidden danger parts, is high in construction efficiency and low in construction cost, can guarantee the pouring compaction effectof the beam column concrete, and enables the construction quality to be improved.

Description

technical field [0001] The invention relates to a method for monitoring the compactness of concrete pouring of rigid beam-column joints realized based on an endoscope, and belongs to the technical field of concrete pouring. Background technique [0002] Stiff beam-column structures are widely used in high-speed railway stations because they can bear the dynamic load of trains. refer to Figure 4 , the existing stiff beam-column structure usually includes a steel column 10 with a rectangular cross-section, and steel corbels 70 are welded on each side of the steel column 10. Usually, the steel corbel 70 adopts I-steel, that is, the steel corbel 70 includes upper, The lower flange plate and the middle web connecting the upper and lower flange plates. And in order to strengthen the shear force of the steel corbel 70 and the steel column 10, the steel column 10 is connected with two adjacent steel corbels 70 through the welded steel flange web 30, usually the steel flange web 30...

AI Technical Summary

Problems solved by technology

It can be seen that this kind of stiff beam-column structure, especially the structure of its stiff beam-column joints is very complicated.

In actual construction, when performing beam-column concrete pouring on stiffened beam-column joints, because the steel bars at this joint are densely distributed and the operable space is small, especially the part located below the steel flange web 30 and close to the steel column 10, and the steel Between the corbel 70 and the formwork supported under the pouring steel structure 20 and close to the position of the steel column 10 (such as Figure 4 The part indicated by the middle mark 90), these parts are prone to the problem of insufficient concrete pouring density, and the concrete cannot be completely filled during the concrete pouring process. Even if exhaust and vibration measures are taken, it is often due to insufficient exhaust, vibration Insufficient pounding caused hollowing of the concrete in the beam, which greatly affected the quality of the structure

At present, there is no better way to solve the problem other than increasing the number of vibrations

However, when a problem is found after the dismantling of the formwork, it needs to be re-constructed, which has a great impact on the progress of the project, the quality of the project and the construction cost.

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