对建筑施工裂缝的成因及预防措施的探讨（Discussion on the causes and preventive measures of construction cracks）.docVIP

对建筑施工裂缝的成因及预防措施的探讨（Discussion on the causes and preventive measures of construction cracks） The resulting cracks in the transition will affect the quality of the project. 1.3 sedimentation causes cracks to appear In the structure of the masonry house, the settlement cracks in the structure stress are caused by the uneven settlement of the foundation. Construction cracks in some of the multi-storey buildings could develop into the second floor. Once the foundation bearing capacity of the building is mutated, the settlement crack may also develop to the lower level of the building, which may be distributed throughout the building in severe cases. The key to this fissure is due to improper construction methods or design errors; If USES the pile foundation construction, when relying on the static load test of pile foundation bearing capacity of foundation with test, the influencing factors of pile foundation construction, and the limited number of detection at the same time, so I cant fundamentally ensure the accuracy of the testing data, influence the effect of design and construction, leading to the cracking of settlement. 1.4 cracks caused during construction Construction crack is the most important factor of cracks, because of the construction technology, operation method and other reasons can cause cracks to appear, and the crack distribution has no chapter to follow. From the point of its reason, mainly due to pipe Settings or the strength of the concrete was unable to meet demand and the floor slab thickness, concrete curing conditions have difference, concrete pouring method or sequence errors may result in construction cracks, in the process of concrete pouring speed too fast, premature template to dismantle or unreasonable setting of construction joints, deformation of reinforced protective layer is too large, before casting steel is too large, the cracking of the construction site management will result in improper construction, increase construction cost, c