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防塵網(wǎng)與偽裝網(wǎng)有什么不同?
來源:http://www.qdfst.com/ 發(fā)布時(shí)間:2024-01-04 0

1.施工放線,根據(jù)要求結(jié)合防塵網(wǎng)圖紙尺寸,找出本工程相應(yīng)的基礎(chǔ)位置,用白灰灑出準(zhǔn)確的基礎(chǔ)位置。

1. Construction layout, according to the requirements, combined with the size of the dust-proof net drawing, find the corresponding foundation position of this project, and sprinkle the accurate foundation position with white ash.

2.土方開挖,基礎(chǔ)土方開挖采用機(jī)械開挖,人工修正挖至正負(fù)零以下2.0中間距離2m,達(dá)到設(shè)計(jì)要求,合格后再澆注C15砼墊層。

2. Earthwork excavation: Mechanical excavation is used for foundation earthwork excavation, and manual correction is carried out to a distance of 2.0 meters below plus or minus zero, meeting the design requirements. After passing the inspection, C15 concrete cushion layer is poured.

3.鋼筋制作和捆扎,所有進(jìn)場鋼筋需具有產(chǎn)品質(zhì)量合格證,鋼筋運(yùn)至現(xiàn)場后應(yīng)按批次分不同等級(jí)牌號(hào),直徑分別持牌堆放。鋼筋的交叉點(diǎn)應(yīng)用鐵絲扎牢,梁和柱的扎筋應(yīng)于受力鋼筋垂直設(shè)置,扎筋彎鉤疊合處應(yīng)沿受力鋼筋方向錯(cuò)開設(shè)置。預(yù)埋件應(yīng)采用固定架固定其位置,安裝符合要求以后,應(yīng)于鋼筋籠點(diǎn)焊牢固,鋼筋籠要與模板固接,在基礎(chǔ)砼澆注過程中應(yīng)隨時(shí)復(fù)查檢控,防止?jié)沧⒒炷習(xí)r產(chǎn)生位移。

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3. Steel bar production and bundling. All incoming steel bars must have a product quality certificate. After the steel bars are transported to the site, they should be classified into different grades and grades according to batches, and their diameters should be stacked with different licenses. The intersection of steel bars should be firmly tied with iron wire. The tie bars of beams and columns should be set perpendicular to the load-bearing steel bars, and the overlap of the tie bar hooks should be staggered along the direction of the load-bearing steel bars. The embedded parts should be fixed in position using a fixed frame. After installation meets the requirements, they should be spot welded firmly to the steel cage. The steel cage should be firmly connected to the template. During the pouring process of the foundation concrete, it should be checked and controlled at any time to prevent displacement during pouring.

4.支護(hù)模板:基礎(chǔ)模板可應(yīng)用木模和鋼模配合使用,在土質(zhì)較好的基礎(chǔ)內(nèi),可直接將土壁削平作模,安裝模板前,先復(fù)查并注出地基墊層標(biāo)高和中間線的位置,彈出基礎(chǔ)邊線,每個(gè)柱子有四塊模板拼釘而成,連接梁由三鋼模拼裝而成,模板四周要設(shè)置斜撐,是模板牢固不易變形。

4. Supporting formwork: the foundation formwork can be used in combination with wood formwork and steel formwork. In the foundation with good soil quality, the soil wall can be directly flattened as a formwork. Before installing the formwork, the elevation of the foundation cushion and the position of the middle line should be rechecked and noted, and the foundation sideline should be popped out. Each column is made of four formwork plates, and the connecting beam is made of three steel formworks. slant support should be set around the formwork, so that the formwork is firm and not easy to deform.

5.澆注混凝土:防塵網(wǎng)基礎(chǔ)承臺(tái)混凝土強(qiáng)度等級(jí)為C25,對(duì)其材料要求:水泥強(qiáng)度等級(jí)為325號(hào),普通硅酸鹽水泥,粗骨料圍毆粒徑5-20mm的卵石,細(xì)骨料為中粗砂,含泥量小于百分之3,混凝土高度為10-30mm。

5. Pouring concrete: The strength grade of the dustproof net foundation bearing platform concrete is C25, and the material requirements are as follows: cement strength grade is 325, ordinary Portland cement, coarse aggregate is mixed with pebbles with a particle size of 5-20mm, fine aggregate is medium coarse sand, with a mud content of less than 3%, and the concrete height is 10-30mm.

6.基礎(chǔ)回填:撤模后,用干性粘土回填壘實(shí)。基礎(chǔ)混凝土強(qiáng)度達(dá)到設(shè)計(jì)強(qiáng)度的百分之93以上后,即可進(jìn)行防塵網(wǎng)鋼結(jié)構(gòu)安裝。

6. Foundation backfilling: After removing the formwork, use dry clay to backfill and compact. After the strength of the foundation concrete reaches 93% or more of the design strength, the installation of the dustproof mesh steel structure can be carried out.

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