学校房屋多跨高低差底板结构施工技术  

CONSTRUCTION TECHNOLOGY OF MULTI-SPAN HIGH-LOW DIFFERENCE SUBFLOOR STRUCTURE FOR SCHOOL BUILDINGS

作　　者：金字宣 王浩沣 喻明翰 Jin Zi-xuan;Wang Hao-feng;Yu Ming-han

机构地区：[1]中建二局第一建筑工程有限公司,北京100071

出　　处：《建筑技术开发》2024年第3期32-34,共3页Building Technology Development

摘　　要：学校房屋多跨高低差底板受到结构复杂程度的影响,在浇筑过程中容易出现浇筑不全面的问题,从而影响混凝土的抗压强度。因此,为提高多跨高低差底板结构的整体强度,研究了学校房屋多跨高低差底板结构施工技术。优化调整混凝土配合比,设计折叠接触式底板结构。然后结合跳仓法对混凝土进行浇筑施工,并进行套箱底板下放操作以及套箱体系转换操作,再对底板龙骨进行起吊回收。通过采用钻芯取样的方式,布设检测点对底板混凝土强度进行检测。检测结果表明,底板结构混凝土芯样抗压强度在40 MPa以上,由此可以说明提出的底板结构施工技术具备较为理想的施工效果。The multi-span floor of the school building is affected by the complexity of the structure,and the problem of incomplete pouring is easy to occur during the pouring process,which affects the compressive strength of the concrete.Therefore,in order to improve the overall strength of multi-span high-low difference floor structure,the construction technology of multi-span high-low difference floor structure of school building is studied.The structure of folding contact bottom plate is designed by optimizing and adjusting the mix ratio of concrete.Then the concrete is poured in combination with the bin hopping method,and the bottom of the box is lowered and the box system is converted,and the bottom keel is lifted and recovered.Through the method of core sampling,the detection point is set up to detect the concrete strength of the bottom plate.The test results show that the compressive strength of the concrete core sample of the floor structure is above 40 MPa,which can indicate that the construction technology of the floor structure has a relatively ideal construction effect.

关 键 词：学校房屋 多跨高低差 底板结构施工 跳仓法 钻芯取样 

分 类 号：TU391[建筑科学—结构工程]