| China has a splendid culture of 5,000 years,which is reflected in all aspects.Among them,Huizhou architecture,as the main carrier of Huizhou culture,is one of the most important schools of Chinese ancient architecture,mainly distributed in the ancient Huizhou area.The rich culture and architectural beauty of the ancient Huizhou architecture are perfectly demonstrated by the ancient ancient buildings in the ancient Huizhou area.Huistyle architecture is not only beautiful in form,but also has high aesthetic value.It is also widely used because of its unique tenon-and-mortise connection,which makes it have better mechanical properties and seismic performance.However,with the development of the historical process,due to the erosion of nature and man-made destruction caused by the lag of economic development in the ancient Huizhou area,a large number of Huizhou buildings have been damaged to varying degrees.Therefore,it is extremely urgent to repair and protect Huizhou architecture at present.In Hui-style architecture,the wooden column is the main load-bearing component of the building structure,and its integrity is extremely important.Based on this,this paper conducts field surveys and visits to collect data on ancient buildings in Huizhou,and conducts corresponding experiments to complete the following main tasks:（1）Introduce the current status of Huizhou architecture,analyze the damage characteristics and formation causes of Huizhou wooden pillars,and expound the current basic measures for the repair and reinforcement of wooden pillars,as well as the necessity of ecological protection.Finally,the research status of wooden column performance at home and abroad is summarized.（2）Based on the orthotropy of wood mechanical properties,the basic parameters of pineapple lattice wood were measured by experimental methods,including moisture content,density,transverse grain compressive and tensile strength,along grain compressive strength,flexural strength And the main physical and mechanical performance parameters such as elastic modulus and parameter conversion.Aiming at the typical structure of Huizhou architecture,remove the piercing and apply the force directly on the beam to analyze the stress state of the wooden column.lay the foundation for subsequent experiments.（3）The experiment was based on Dunmutang in Xucun,Shexian County,Anhui Province,and commissioned Anhui Classical Garden Construction Co.,Ltd.to make five groups of single-layer two-span timber frames at a ratio of 2.72:1,which are respectively non-destructive fir and non-destructive pineapple lattice wood.,and three groups of singlelayer two-span pineapple lattice timber frames with different pier connection reinforcement forms: dovetail pier connection repair and reinforcement,Chaoshou mortise pier connection repair and reinforcement and palm mortise pier connection repair and reinforcement,and a height of 200 mm from the column foot and 1/4 Single-story,two-span timber frame at log post height.The five groups of wood frames were used for static loading test.The results show that the three pier connection repair and reinforcement methods can improve the bearing capacity of the wooden column,which verifies that these three repair and reinforcement methods are reasonable and feasible.The reinforcement method,and finally the repair and reinforcement method of the palm tenon;it is further verified that the effect of the pier connection height of 200 mm on the bearing capacity of the wooden column is greater than 1/4 of the log column height.Three groups of different repaired and reinforced wooden columns and a group of non-destructive wooden columns,a total of 7 wooden columns,were subjected to separate loading tests,and the research further verified that the above conclusions are reliable and effective.（4）The three-dimensional design software UG NX10 is used for sketching,and the finite element ABAQUS software is used to carry out the modeling calculation of five groups of single-layer wooden components,and the calculated results are compared with the test results.The reinforcement method is reasonable and feasible,and it is also verified that the reinforcement height of 200 mm is more effective and reasonable than the height of 1/4 log column.In the actual project of repairing,strengthening and protecting the ancient Hui-style buildings in the future,when repairing and strengthening the wooden columns,the method of repairing and strengthening the wooden columns is given priority.Through the static loading test of five groups of single-story double-span timber frames of pineapple lattice wood,the stress and lateral displacement parameters of key positions of each wooden column are studied.Provide reference for the repair,reinforcement and protection of buildings,especially wooden columns.Figure [111] table [31] reference [69]... |
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