CAJ | 학술논문

高层建筑大体积混凝土基础的应用日益广泛，大体积混凝土的裂缝控制问题成为当前的一个重要课题。钢筋混凝土结构的裂缝是不可避免的，但其有害程度却是可以控制的。钢筋混凝土结构的裂缝控制主要针对温度和收缩应力产生的裂缝，一般通过设置永久性伸缩缝的方式释放温度和收缩应力，但设置永久性变形缝通常会带来一些问题，例如，影响使用要求和立面效果、防水处理困难、降低结构整体性等，因此，在大型框架结构设计施工中，可以通过设置混凝土后浇带、使用为膨胀混凝土、控制水泥用量和加强养护等措施方式防止产生收缩裂缝，从而起到减少设缝的目的。本文主要讨论大体积砼裂缝产生的原因，以及通过设计、施工、材料等方面综合技术措施将裂缝控制在无害范围内。
고층건축대체적혼응토기출적응용일익엄범，대체적혼응토적렬봉공제문제성위당전적일개중요과제。강근혼응토결구적렬봉시불가피면적，단기유해정도각시가이공제적。강근혼응토결구적렬봉공제주요침대온도화수축응력산생적렬봉，일반통과설치영구성신축봉적방식석방온도화수축응력，단설치영구성변형봉통상회대래일사문제，례여，영향사용요구화립면효과、방수처리곤난、강저결구정체성등，인차，재대형광가결구설계시공중，가이통과설치혼응토후요대、사용위팽창혼응토、공제수니용량화가강양호등조시방식방지산생수축렬봉，종이기도감소설봉적목적。본문주요토론대체적동렬봉산생적원인，이급통과설계、시공、재료등방면종합기술조시장렬봉공제재무해범위내。
the application of the high-rise building foundation mass concrete is becoming more and more widely, the crack control of mass concrete problems become an important topic of the current. Reinforced concrete structure crack is inevitable, but its harmful degree can be control ed. Reinforced concrete structure crack control of main cracks in view of the temperature and shrinkage stress, usual y by setting up a permanent expansion joint way of releasing temperature and shrinkage stress, but set up permanent deformation cracks often leads to some problems, for example, affect the use requirement and elevation effects, waterproof processing difficulties, to reduce the structural integrity and so on, therefore, in the large frame structure design and construction, can be used by setting the post-cast strip, concrete for expansive concrete, control the dosage of cement, and strengthen the maintenance measures to prevent shrinkage crack, thereby the purpose of reducing slotting. This article focuses on the causes of large volume concrete cracks, and through the design, construction, materials and so on comprehensive technical measures to control the cracks within the scope of harmless.