论文部分内容阅读
一、钢筋混凝土受弯构件的截面限制条件如何区分钢筋混凝土一般受弯构件与薄腹构件,正确选用设计规范TJ10-74中第48条规定的截面限制条件,这是工程设计中十分需要解决的问题。为了明确这些问题,我们进行了试验研究,提出了区分钢筋混凝土梁厚腹与薄腹界限的建议。现简述如下: 设计规范TJ10-74规定的截面限制条件是: 对一般受弯构件,要求 KQ≤0.3R_abh_0 (1) 对薄腹梁等斜裂缝开展较大的构件,要求: KQ≤0.2R_abh_0 (2) 按规范取K=1.55,相应于公式(1)、
First, the restricted conditions of the cross-section of reinforced concrete flexural members How to distinguish between the general flexural members and thin-concrete members of reinforced concrete, the correct selection of the design section TJ10-74 section 48 of the restrictions on the conditions of cross-section, which is the engineering design needs to be resolved problem. In order to clarify these issues, we conducted a pilot study and proposed a proposal to distinguish between the thick and thin webs of reinforced concrete beams. The following is a brief description: The design section TJ10-74 specifies the section restriction conditions as follows: For general bending members, it is required that KQ≤0.3R_abh_0 (1) To carry out larger components for oblique cracks such as thin web beams, the requirement is: KQ≤0.2R_abh_0 (2) Take K=1.55 according to the specification, corresponding to formula (1),