GFRP加固榫卯節(jié)點(diǎn)的研究.pdf

1、 Abstract Shanghai Normal University Master of PhilosophyIIAbstractIn Chinese ancient architecture,there is mainly timberwork.Timberworkbuilding has an unique structure-mortise and tenon(without a nail and a iron).Conne

2、ction of mortise and tenon structure is a characteristic of traditional Chinesearchitecture, it is a kind of concave and convex combination to connect with two wayson the wooden parts. After hundreds or even thousands of

3、 years, mortise and tenonjoint structure of ancient buildings will be affected by all kinds of damage, andwooden beams also has encountered natural disasters(such as acid rain remorselesssiege), and man-made destruction,

4、 inevitably caused damage to historic building, sowe need effective ways to strengthen timberwork building.In this paper, we got the hysteresis curves, skeleton curves by low reversedcyclic load of glass fiber reinforcem

5、ent of mortise and tenon timberwork experimentalstudy; And through the test research of the glass fiber reinforced the wooden beamsby acid rain corrosion,we got the load and strain curve;Analyzed the experimentalphenomen

6、a and the experimental data, etc. before and after reinforcement, we got thebearing capacity of the structure before and after the performance, ductility andultimate bearing capacity of beam, the results shows the good e

7、ffect of glass fiberreinforced wood.Based on the ANSYS simulation of wood low cyclic test,we studies the structureof the bearing capacity and damage.Analyze and compare experiments and simulationcurve, ultimate bearing c

8、apacity, etc.we verify the difference within the scope of thepermit;We used GFRP strengthening mortise and tenon joint structure:Under differentglass fiber reinforcement layer, we compared bearing capacity, ductility and

9、 rigidityof mortise and tenon joint structure; We also compared the bearing capacity, ductilityand rigidity in the same layer by glass fiber strengthening under the different parts ofmortise and tenon joint structure, it

10、 shows that the best layers and the best part of themortise and tenon joint structure under glass fiber reinforced. In addition, we useANSYS simulating wood beams with GFRP,through two different size of the woodenbeams,w