The invention is used for buildings of reinforced concrete beams, and the improved node is connected with column, which is characterized in that the ends of reinforced concrete beams with transverse T structural steel joints, including T type cross section is at least equal to the beam reinforcement in the cage is formed, and the corresponding position at least in the precast reinforced concrete beams, reinforced by there used to wear through hole, the main and auxiliary bar passes through the through hole formed piercing plug or connection; joint of reinforced concrete column, at least the column and the prefabricated beam connection section in the axial section of steel pipe, steel tube and steel beam connection with joint radially extending side of the column. Therefore, the utility model has the advantages of strong shear resistance, bending resistance and strong bearing capacity, and has the elastic structure of the steel structure beam, so the utility model has the advantages of good seismic resistance and good safety. Built in prestressed tension can be made more than 8 meters in length of large span precast reinforced concrete beam. The steel structure beam has the advantages of fast installation, high strength, flexible structure and good safety, and the cost is only 1 / 3 of the steel structure, and the comprehensive benefit cost is still lower than that of the reinforced concrete.
【技術實現步驟摘要】
本專利技術是對建筑物用鋼筋砼梁,及與柱連接節點的改進,尤其涉及一種節點 強度高,抗剪、抗扭性能好的預制鋼筋砼梁及與柱連接節點,是對申請人在先申請專利 200920283681. 1的進一步改進和完善。
技術介紹
建筑結構中梁,通常采用鋼梁或鋼筋混凝土(鋼筋砼)梁。鋼梁可產業化生產、 施工方便、強度高,抗震性好,但造價相對高,防火、防腐困難。鋼筋砼梁,又分為現澆梁和 預制梁,現澆梁在施工中需要支模,材料損耗大,施工進度慢;預制梁可產業化生產,不需支 模,材料損耗小,施工進度快,質量保障性好。鋼筋砼預制梁在建筑結構中,不僅連接節點制 作困難,而且節點抗彎、抗剪性差,因此限制了預制鋼筋砼梁的推廣應用。為此有人設計一 種梁端頭加接型鋼接頭的組合預制鋼筋砼梁,例如中國專利CN101215855公開的預制組合 梁,是在鋼筋砼預制梁,兩端鋼筋上連接有嵌入式型鋼接頭,與柱連接時,與預埋在墻柱鋼 筋砼內并與墻柱內鋼筋連接的型鋼接頭連接組合。此鋼筋砼預制梁,由于連接型鋼接頭,采 用嵌入與鋼筋砼梁鋼筋焊接連接結構,型鋼接頭與梁中鋼筋連接,型鋼接頭受力全部集中 于鋼筋砼梁鋼筋周箍上。此受力形式,型鋼接頭與鋼筋連接處成為抗拉、抗剪薄弱點,易導 致在此薄弱部位產生裂紋,甚至鋼筋斷裂,因而此結構組合梁的抗壓、抗剪能力相對較弱, 不能成為強節點。其次,此結構鋼筋砼預制梁,按現行國家建筑設計規范,只能用于跨度< 8 米的短梁,而當梁的跨度>8米時,必須設計預應力張拉,此結構預制梁則不能設計預應力 張拉,而不能用于跨度> 8米長梁。此外,其梁與柱連接節點,同樣采用型鋼接頭 ...
【技術保護點】
預制鋼筋砼梁,包括鋼筋砼預制梁,及兩端的連接型鋼接頭,其特征在于所說型鋼接頭至少為橫T型結構,其中T型橫端面至少等于砼梁內鋼筋籠形成的截面,并至少在鋼筋砼預制梁中主、副鋼筋對應位置各有慣穿通孔,各主、副鋼筋穿過通孔形成穿孔塞焊或連接。
【技術特征摘要】
...
【專利技術屬性】
技術研發人員:張吉華,張晨,
申請(專利權)人:張吉華,張晨,
類型:發明
國別省市:32[中國|江蘇]
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