重庆现浇什么气候合适钢筋混凝土楼板-What clim

编辑:admin 日期:2020-03-30 10:57 / 人气:

钢筋混凝土结构是指用配有钢筋增强的混凝土制成的结构。承重的主要构件是用钢筋混凝土建造的。包括薄壳结构、大模板现浇结构及使用滑模、升板等建造的钢筋混凝土结构的建筑物。用钢筋和混凝土制成的一种结构。钢筋承受拉力,混凝土承受压力。具有坚固、耐久、防火性能好、比钢结构节省钢材和成本低等优点。用在工厂或施工现场预先制成的钢筋混凝土构件,在现场拼装而成。要说什么气候比较合适,今天重庆现浇公司告诉大家,其实一年四季都可以,不过春、夏、秋正常养护要7~9天;冬天在正常养护下10~15天能够拆模。
 
Reinforced concrete structures are structures made of reinforced concrete. The main load-bearing member is made of reinforced concrete. It includes thin shell structure, large formwork cast-in-place structure and reinforced concrete structure constructed by sliding form, lifting plate, etc. A structure made of steel and concrete. The steel bar bears the tension and the concrete bears the pressure. It has the advantages of being strong, durable, good fire resistance, saving steel and low cost compared with steel structure. Reinforced concrete members made in advance in a factory or construction site, assembled on site. Want to say what climate is more appropriate, actually all the year round is ok, however spring, summer, autumn normal curing wants 7~9 days; In winter under the normal maintenance of 10 to 15 days can be removed.

板式楼板:(1) 单向板:板的长边与短边之比大于2,板内受力钢筋沿短边方向布置,板的长边承担板的荷载(2) 双向板:板的长边与短边之比不大于2,荷载沿双向传递,短边方向内力较大,长边方向内力较小,受力主筋平行于短边并摆在下面 (3) 板式楼板的厚度一般不超过120mm,经济跨度在 3000mm之内(4) 适用于小跨度房间,如走廊、厕所和厨房等;
 
  肋形楼板:楼板内设置梁,梁有主梁和次梁,主梁沿房间布置,次梁与主梁一般垂直相交,板搁置在次梁上,次梁搁置在主梁上,主梁搁置在墙或柱上,所以板内荷载通过梁传至墙或者柱子上适用于厂房等大开间房间;
 
  井字楼板:(1)纵梁和横梁同时承担着由板传下来的荷载(2) 一般为6~10m,板厚为70~80mm井格边长一般在2.5m之内(3) 常用于跨度为10m左右、长短边之比小于1.5的公共建筑的门厅、大厅;
 
  无梁楼板:柱网一般布置为正方形或矩形,柱距以6m左右较为经济。为减少板跨,改善板的受力条件和加强柱对板的支承作用,一般在柱的顶部设柱帽或托板。由于其板跨较大,板厚不宜小于120mm,一般为160~200mm。适宜于活荷载较大的商店、仓库、展览馆等建筑;
 
  压型钢板组合楼板:压型钢板起到现浇混凝土的永久模板作用;同时板上的肋条能与混凝土共同工作,可以简化施工程序,加快施工速度;并且具有刚度大、整体性好的优点;同时还可以利用压型钢板肋间空间敷设电力或通讯管线适用于需有较大的空间的高、多层民用建筑及大跨度工业厂房中。
Slab floor: (1) Unidirectional slab: The ratio of the long side to the short side of the slab is greater than 2, and the reinforcing steel bars in the slab are arranged along the short side direction. The long side of the slab bears the load of the slab. (2) Two-way slab: the length of the slab The ratio of the side to the short side is not greater than 2, the load is transmitted in both directions, the internal force in the short side is large, and the internal force in the long side is small. The main reinforcing bar is parallel to the short side and placed below (3) The thickness of the slab floor is generally not more than 120mm, economic span within 3000mm (4) Suitable for small-span rooms, such as corridors, toilets and kitchens;
 
Rib floor: There is a beam in the floor. The beam has a primary beam and a secondary beam. The primary beam is arranged along the room. The secondary beam and the primary beam generally intersect perpendicularly. On the wall or column, so the internal load of the plate is transmitted to the wall or column through the beam, which is suitable for large open rooms such as factory buildings;
 
Floor slabs: (1) longitudinal beams and beams bear the load transmitted by the slabs at the same time (2) generally 6 to 10m, plate thickness is 70 to 80mm, the length of the grid side is generally within 2.5m (3) often used Foyer and lobby of a public building with a span of about 10m and a ratio of short to long sides less than 1.5;
 
Beamless slabs: The column network is generally arranged in a square or rectangular shape, and the column spacing is about 6m more economical. In order to reduce the span of the plate, improve the stress conditions of the plate and strengthen the support effect of the column on the plate, a column cap or supporting plate is generally provided on the top of the column. Due to the large plate span, the thickness of the plate should not be less than 120mm, and it is generally 160 ~ 200mm. Suitable for shops, warehouses, exhibition halls and other buildings with large live loads;
 
Profiled steel plate combined floor: Profiled steel plate acts as a permanent formwork for cast-in-situ concrete; at the same time, the ribs on the plate can work with concrete, which can simplify the construction process and speed up the construction; and has the advantages of high rigidity and good integrity; At the same time, it can also use the space between the ribs of the profiled steel plates to lay power or communication pipelines, which is suitable for high and multi-layer civil buildings and large-span industrial plants that require large spaces.


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