当下,常用土木工程材料有水泥、砂石、钢材、木材、砖等,其中混凝土与钢筋的结合被认为是应用最广泛的结构材料。但随着结构服役时间的增长,越来越多的问题(例如混凝土的耐久性)暴露出来;钢结构的应用也具有一定的比例,它克服了混凝土结构自身笨重的弱点,但在使用中也会出现高温下易屈服和地震中脆断的问题。如今材料科学得到了长足的发展,尤其碳纤维被广泛的应用于土木工程,使其结构形式灵活、功能多样。碳纤维的比强度和比模量 At present, commonly used civil engineering materials are cement, sand, steel, wood, brick, etc., of which the combination of concrete and steel is considered the most widely used structural materials. However, with the increase of the service life of the structure, more and more problems (such as the durability of the concrete) are exposed; and the application of the steel structure also has a certain proportion, which overcomes the bulky weaknesses of the concrete structure itself, but in use There will be prone to yield at high temperatures and brittle fracture in the earthquake. Now material science has made considerable progress, in particular, carbon fiber is widely used in civil engineering, to make its structure flexible and versatile. Specific strength and specific modulus of carbon fiber