Study On The Influence Mechanism Of Window Sealing And Hole Blocking Behavior On The Deformation Of Wooden Ancient Buildings

Cultural relics protection "merits the present and benefits the future".The ancient buildings scattered on the motherland like stars are important historical materials for the study of ancient Chinese politics,economy,culture and society.They play an important role in establishing cultural self-confidence and improving cultural consciousness.How to better protect ancient buildings has long become an important work for cultural relics protection workers.The window lattice of many ancient buildings is perforated,and the air can enter the room directly through the window and then flow outdoors.In the protection of modern cultural relics,glass is often installed at the window lattice and museums are built in the body of ancient buildings.Whether this approach will have an impact on ancient wooden buildings has not been studied.The window lattice of many ancient buildings is perforated,and the air can enter the room directly through the window.In the protection of modern cultural relics,museums are built in the body of ancient buildings,and glass is installed at the window lattice.Whether this approach will have an impact on ancient wooden buildings has not been studied.Based on this,this paper selects Jiayuguan tower as the main research object,and uses three-dimensional laser scanner to obtain accurate geometric dimension information;Sort out the wind speed and direction information of Jiayuguan;The numerical wind tunnel test of Rouyuan building in Jiayuguan is established.After verifying the reliability of the calculation mode,the wind load shape coefficient under two wind directions is solved,and the influence of window lattice opening and closing on the shape coefficient is compared;With the help of natural wind vibration and ground pulsation,the natural vibration frequency and first and second-order vibration modes of the third tower of Jiayuguan are detected by acceleration sensor,so as to detect the accuracy and reliability of the subsequent finite element model;By calculating the wind load value of the main wind components,the influence of window lattice opening and closing on it is compared;Finally,according to the finite element simulation results,the influence of window lattice opening and closing on ancient buildings is analyzed from the perspective of structural displacement,and some views on the monitoring and protection of ancient buildings are put forward.