砖墙砂浆配合双面挂线施工.doc

砖墙砂浆配合双面挂线施工施工过程中，张拉时必须保证顶板受力均匀，避免先浇混凝土导致约束受力不均，故先不浇捣桁架竖腹杆和斜腹杆，等到上弦梁板中应力稳定后，再进行竖腹杆、斜腹杆的支模及混凝土浇筑施工，并且混凝土后浇桁架不会容易出现裂缝。在施工过程中，利用排架支撑地下室顶板。Construction process, must ensure that the roof when tensioning force uniform, avoid uneven before pouring concrete leads to constraints, so the first cast not truss diagonal vertical and oblique abdominal rod, wait until the wind stress in beam and slab after stability, again carries on the vertical web member, shuttering of oblique abdominal rod and concrete pouring construction, and not easy to crack after pouring of concrete truss. In the process of construction, use of bent frame supporting the basement roof. 建筑地下1层两简体间c、d、e、f轴各有1榀预应力混凝土桁架，其中上弦杆采用后张法施加预应力，每根上弦杆配4束钢绞线，施加4000kn的有效应力，超张拉103%。采用4根大梁对称张拉，每根梁内4孔进行对称对角张拉。1 floor underground building c, d, e, f between the two simplified axis each have 1 prestressed concrete truss, the upper chord by post-tensioned prestressing, each upper chord with 4 bundle of steel strand, 4000 kn of effective stress, hyper tension (103%). Using 4 girder symmetric tensioning, each 4 holes symmetric diagonal tensioned beam. 砖必须要在砌筑前一天浇水湿润，含水率为1015%。常温施工不得干砖上墙，雨季不得使用含水率达饱和的砖砌墙。砂浆配合比采用重量比，计量精度水泥为2%，砂控制在5%以内。采用砂浆搅拌机搅拌，搅拌时间不少于1.5min。砌砖前应先盘角，每次盘角不要超过五层，新盘的大角及时进行吊车吊、靠。Brick masonry must be watering humid day, moisture content of 10 15%. Room temperature construction may not dry on the brick wall, moisture content of saturated bricky build by laying bricks or stones wall shall be used for the rainy season. Cement mortar mix proportion by weight ratio, the measurement precision of plus or minus 2%, sand controlling within plus or minus 5%. Using mortar mixer mixing, stirring time not less than 1.5 min. Brick plate Angle, should be taken before each plate Angle not more than five floors, new dish, the great horn in a timely manner. 如有偏差要及时修整。盘角时要仔细对照皮数杆的砖层和标高，控制好灰缝大小，使水平经编土工格栅灰缝均匀一致。应力随上部结构施工逐渐上升，在到5层时达最高点绝大多是测点预应力在20mpa以上，5层变换就不太明显了。在连接上部结构第1道钢桁架后，在2个简体创造了新的约束，导致应力再次上升，之后就保持平稳了。If there is any deviation to finish in time. Plate Angle control skin carefully count rod brick layers and elevation, good control of ash seam size, make the horizontal mortar joint uniform. Stress rising gradually over the upper structure construction on to 5 layer reaches the highest point most is prestressed in more than 20 mpa, point 5 layers of transformation is not obvious. After connecting the upper structure steel truss and 1, created new constraints in two simplified, cause stress to rise again, after is stable. 砖砌筑工程施工中的关键技术，大角盘好后再复查一次，平整和垂直度完全符合要求后，再挂线砌墙。砌砖采用一铲灰、一块砖、一挤揉的砌砖法，即满铺、满挤操作法。砌筑砖墙必须双面挂线，如果长墙几个人均使用一根通线，中间应设几个支线点，小线要拉紧，每层砖都要穿线看平，使水平缝均匀一致，平直通顺。Brick masonry construction of the key technology, large Angle plate after review it again, after that accords with a requirement completely flat and vertical degree, build by laying bricks or stones wall hanging line again. , a piece of brick, brick using a shovel ash knead a crowded bricklaying method, namely full shop, full operation. Masonry walls must be double hanged line, if the wall a few per capita use a tube line, should set up several branch points among them, string cable tension, each layer brickre threading the flat, make the horizontal seam uniform, straight smooth. 为保证砖砌体的整体性和稳定性，使荷载能均匀传送，避免因墙体局部受力过大而产生裂缝，组砌形式采用上下错缝，内外搭砖法进行砌砖。In order to guarantee the integrity and stability of the brick masonry, uniform load can transfer and avoid