论文部分内容阅读
天津市地处渤海湾,属于沿海地区,其表层土从成因年代上看,多属于沉积土,而且形成的年代较短,故土质较松软,属软土地基范畴。局部地区杂填土较厚,这就使建筑物在其软土地基上产生较大的沉降变形及变形差,同时通过计算所得到的沉降变形量与建筑物的实际变形量差异又很大,这就导致在结构设计时很难准确地控制建筑物的沉降量。近些年来砖混结构由于基础的沉降不均导致砌体开裂现象又较频繁,所以应引起我们设计单位和施工单位的足够认识,对砖?昆结构由于沉降不均使砌体开裂的发生部位、原因及处理方法,我们谈谈粗浅的看法,愿与同行商榷,若有不当,诚望指正。 1、裂缝发生的部位 对砖混结构,由于基础变形不均导致砌体开裂
Tianjin is located in the Bohai Bay and belongs to the coastal area. The topsoil of the area is considered to be sedimentary soil in terms of genesis. It is formed in a relatively short period of time. Therefore, the soil is soft and soft, and it belongs to the category of soft soils. In some areas, the thick soil is filled with miscellaneous soil, which causes the building to have large settlement deformation and poor deformation on its soft soil foundation. At the same time, the settlement deformation obtained by calculation is different from the actual deformation of the building. This makes it difficult to accurately control the settlement of a building during structural design. In recent years, the masonry cracking phenomenon of brick-concrete structure due to uneven foundation settlement is frequent, so it should cause sufficient understanding of our design unit and construction unit, and the occurrence site of masonry cracking due to uneven settlement of brick and concrete structures. , reasons and treatment methods, we talk about shallow ideas, and would like to discuss with peers, if wrong, sincerely look forward to correct me. 1. The location of cracks In brick-concrete structures, masonry cracking occurs due to uneven foundation deformation