Pier connection method for end parts of wooden beams with water-mixed paint surfaces for ancient buildings

Abstract

The invention provides a pier connection method for end parts of wooden beams with water-mixed paint surfaces for ancient buildings. The pier connection method comprises the following specific methodsof surveying and recording; marking pier-connection tenon-mortise points; cutting off ends of decayed beam ends; selecting new beams for mortising; splicing original beams with the new beams; makingearly-stage preparations for the sticking of fiber cloth; preparing substrate resin glue; externally sticking transverse carbon-aramid fiber and longitudinal-transverse carbon-aramid hybrid fiber; andpainting. The pier connection method has the beneficial effects that the beam structure is more stable after the pier connection since the four structural defense lines, namely, corresponding limiting tenons, countersunk bolts, application of a structural adhesive to a pier connection surface, and external sticking of the fiber cloth, are provided. The transverse fiber cloth reinforcement position avoids a mortise-tenon interface, so that an original reinforcement member is easier to disassemble and recover during secondary reinforcement. In addition, the carbon-aramid hybrid fiber has the advantages of higher mechanical property, high strength, high ductility and higher adaptability to wood, so that the using amount of reinforcement material can be reduced, and the requirements of green,environmentally-friendly and energy-saving construction are met.

Description

technical field [0001] The invention belongs to the construction technical field of ancient building protection, and in particular relates to a pier connection method for the wooden beam ends of the mixed-water paint surface of the ancient building. Background technique [0002] At present, in the existing wooden architectural heritage in China, due to the long years, most buildings have experienced inevitable material decay and aging. The appearance of these damages has greatly weakened the ultimate bearing capacity of the structure, making architectural heritage exist. Greater risk of damage. Among them, the structural significance of the wooden beam is to transmit the load of the roof to the wooden column, and its load-bearing role in the building is very important. Therefore, when repairing and protecting these important wooden architectural heritages related to decay of wooden beams, more reasonable repair methods are needed to protect their overall safety. [0003] T...

AI Technical Summary

Problems solved by technology

[0003] The more traditional way to deal with decay at the ends of wooden beams is to replace the entire wooden beam. This method will cause the loss of the value and style of cultural relics, which does not meet the requirements of "minimum intervention" and "maximum preservation of the original part of cultural relics" in the Cultural Relics Protection Law. "principle, and relatively uneconomical

In addition, there are many problems in the existing wooden beam pier connection technology. The existing technology often only uses wooden pins to carry out the anti-slip treatment of the pier joint surface, while ignoring the effects of beam bending and tension on the pier joint surface. and destroy

In addition, the opening limit function of the existing pier joint mortise and tenon is relatively simple, which is not conducive to the improvement of the overall bearing capacity of the pier-joined wooden beam and the joint work performance of the old and new parts

To sum up, the current pier connection method at the ends of wooden beams in ancient buildings needs further research

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