GRC corbels, ancient architecture corbels, corbel components, corbel molds, GRC corbels, historical architecture corbels

Corbels were initially placed independently on columns or at the outer ends of cantilevers, serving to transfer beam loads to the column and support the eave weight to increase the projection depth. Corbels of different types are arranged in a regular and orderly manner within the same height range, with sizes gradually increasing from bottom to top, all corbels having the same projection dimensions. The curved shapes of the corbels are uniform and graceful, conveying a strong sense of artistry and rhythm. There are many types of corbels available in the market today, including concrete corbels and metal corbels. So, what are the differences between the two?

Cement arches are made of cement, offering a low cost but with a significant weight, requiring substantial labor and material resources. Reinforcement steel must be pre-buried during house construction to facilitate the installation of the cement arches, which can only be completed simultaneously with the house's construction.

Compared to ancient practices, there are mainly two differences: First, in ancient times, fish bladders were commonly used to make adhesive by boiling, crushing, and beating, serving as an auxiliary means for reinforcing joints. If materials needed to be replaced, they could simply be melted and removed by heating over a fire, then replaced and repaired. In modern processes, however, fish bladder glue has been replaced by glue, with 101 glue commonly used in factories. According to the workers at Xueming Dianju, even without glue, joints can be properly connected vertically, horizontally, in size, and diagonally; and in some meticulous structures, such as the slots where panels meet, glue is not used. Second, mortise and tenon joints are mainly machine-finished, ensuring uniformity in size and production efficiency, with only a few parts requiring manual finishing due to size discrepancies. In the traditional furniture practices of different schools, the mortise and tenon technique also has its unique characteristics. According to Zhang Dexiang, vice president of the Chinese Classical Furniture Research Association, during the Ming and Qing dynasties, most court furniture used hard wood from South China, and to maintain their luxurious appearance and texture, they were often made with half-mortise, blind-mortise, and hand-mortise joints that concealed the wood ends, with bamboo nails used to secure them. This "half-mortise with bamboo nail" technique was prevalent in Suzhou furniture and is strongly related to the "substitution" structure commonly used in Jiangnan's boat and ship construction and agricultural tools. Guangzhou furniture, on the other hand, often left through-mortises in the most critical structural parts for楔加固, and it is rarely seen with bamboo nails. Chinese architecture is an example of harmony between humans and nature. A palace, made from tens of thousands of wood pieces, can stand for thousands of years solely through the interlocking mortise and tenon structure. It is said that in June 1937, when the four-person team of Liang Sicheng and Lin Huiyin, pioneers of modern Chinese traditional architecture research, stood before a thousand-year-old temple in Wutai Mountain after much hardship, they found that the Foguang Temple, built during the Tang Dynasty, had stood for over a thousand years with the mortise and tenon structure between the pillars still tightly interlocked, never abandoned.