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在讨论这个问题之前,有必要将涉及规范的相关条文摘列如下,以便对比分析。《砌体结构设计规范》(GBJ3—88)第6.2.4条第三款中规定:“钢筋砖过梁底面砂浆层处的钢筋,其直径不应小于5mm,间距不宜大于120mm,钢筋伸入支座砌体内的长度不宜小于240mm,砂浆层的厚度不宜小于30mm。”《砌体工程施工及验收规范》(GB50203—98)第7.2.3条规定:“砌筑钢筋砖过梁,如设计无具体要求,底面应铺1:3水泥砂浆层,其厚度宜为30mm;钢筋应埋入砂浆层中,两端伸入支座砌体内不应小于240mm,并有
Before discussing this issue, it is necessary to summarize the relevant provisions concerning norms for the purpose of comparative analysis. “Masonry Structure Design Code” (GBJ3-88) Paragraph 3 of Article 6.2.4 stipulates: “rebar at the bottom of the mortar layer at the bottom of the steel bar, its diameter should not be less than 5mm, the spacing should not be greater than 120mm, reinforced into Support brick masonry length should not be less than 240mm, the thickness of the mortar layer should not be less than 30mm. ”“ Masonry Construction and Acceptance Code ”(GB50203-98) Article 7.2.3 states:" brick masonry brick beam, such as Design without specific requirements, the bottom should be shop 1: 3 cement mortar layer, the thickness should be 30mm; steel should be buried in the mortar layer, both ends of the support into the masonry should not be less than 240mm, and there