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钢筋混凝土结构中大跨度的跨中竖向裂缝较为常见,某工程结构的一些主梁也出现了较多的竖向裂缝,为了避免工程裂缝的产生,防微杜渐,工程人员对其分别进行了理论计算和实际荷载试验的论证。 1 工程概况 该工程为钢筋混凝土框筒结构,地下2层、地上26层,标准层每层有8根斜梁(b×h=500×700mm,L=10200mm)为框架主梁。该工程结构施工时共配备了3套组合小钢模进行流转,每层结构施工周期一般为7~8天,拆
In the reinforced concrete structure, the large-span vertical cracks in the middle of the span are more common. Some main beams of a certain engineering structure also have more vertical cracks. In order to avoid the occurrence of cracks in engineering, the engineering personnel carried out theoretical calculations for them. Demonstration of actual load tests. 1 Project Overview The project is a reinforced concrete framed tube structure with 2 floors underground and 26 floors above ground. There are 8 inclined beams (b×h=500×700mm, L=10200mm) on each floor of the standard floor as frame main beams. During the construction of the project, a total of three sets of small steel molds were equipped for circulation. The construction period of each layer was generally 7 to 8 days.