在鋪設(shè)鋼筋網(wǎng)前,應(yīng)制定鋼筋網(wǎng)的布置圖。鋼網(wǎng)敷設(shè)時,應(yīng)根據(jù)現(xiàn)場實際需要放置在現(xiàn)場。當(dāng)鋼網(wǎng)較薄時,可采用鋼網(wǎng)的z形變形函數(shù)。,將網(wǎng)格的中間部分扭曲,使兩端都能刺入梁中,然后鋪上網(wǎng)格。
Before laying the reinforcing steel mesh, the layout plan of reinforcing steel mesh should be drawn up. When laying the steel mesh, it should be placed on the spot according to the actual needs of the site. When the steel mesh is thin, the Z deformation function of the steel mesh can be used. First, the middle part of the grid is twisted so that both ends can be pierced into the beam, and then the grid is laid.
當(dāng)鋼筋網(wǎng)無法彎曲時,焊接網(wǎng)端可焊接1-2根鋼筋,然后將兩個頭插入梁內(nèi),采用直桿法,采用現(xiàn)場組合法。在切割單杠、鋼筋和焊接網(wǎng)的連接處,應(yīng)選擇鋼絲繩的連接方式。設(shè)置和填充底部網(wǎng)格有兩種方法。雙向鋼筋的面層網(wǎng)絡(luò)應(yīng)采用平面搭接接頭進行選擇。應(yīng)設(shè)置較低的力,應(yīng)設(shè)置在梁邊四分之一跨度處,圓的長度不小于30dd,鋼筋直徑不小于2.5m。
When the reinforcing bar net can not bend, 1-2 reinforcing bars can be welded at the end of the welding net, and then the two ends are inserted into the beam, using the straight bar method and the field combination method. In the connection of cutting horizontal bar, steel bar and welding net, the connection mode of steel wire rope should be selected. There are two ways to set and fill the bottom grid. The surface network of bidirectional reinforcing bar should be selected by plane lap joint. Lower forces should be set at the quarter span of the girder edge. The length of the circle should be no less than 30dd and the diameter of the reinforcing bar should be no less than 2.5m.
的小鋼筋搭接接頭的搭接長度不應(yīng)小于1.3倍的小錨固長度之間的后兩個焊接接頭,它不應(yīng)該少于200的區(qū)域,和每個酒吧電焊網(wǎng)之間的距離不得小于1,和酒吧兩網(wǎng)之間的距離應(yīng)不小于50。筋網(wǎng)的小搭接長度應(yīng)是小錨固長度的1.3倍,且不應(yīng)小于300,搭接帶是兩種鋼織物中無橫向鋼筋的一種。
The lap length of the minimum steel bar lap joint should not be less than 1.3 times of the minimum anchorage length between the last two welded joints, it should not be less than 200 areas, and the distance between each bar welding network and bar welding network should not be less than 1, and the distance between the two bars should not be less than 50. The minimum lap length of the web should be 1.3 times of the minimum anchorage length and should not be less than 300. The lap band is one of the two kinds of steel fabrics without transverse reinforcement.
鋼筋網(wǎng)鋪裝的主要工藝是:焊接鋼筋網(wǎng)應(yīng)按設(shè)計圖紙進行定位-篩檢。一階鋼網(wǎng)是設(shè)備的底網(wǎng)—附加緩沖網(wǎng)或鋼筋—支撐面網(wǎng)敷設(shè)—垂直和水平面網(wǎng)敷設(shè)—附加網(wǎng)和鋼筋。鋪底網(wǎng)時,主應(yīng)力鋼筋應(yīng)位于網(wǎng)孔下方。鋪好地網(wǎng)后,主要鋼筋應(yīng)在網(wǎng)孔上方。
The main technology of steel mesh pavement is: welding steel mesh should be positioned and screened according to the design drawings. The first-order steel mesh is the bottom mesh of equipment - additional buffer mesh or steel bar - support surface mesh laying - vertical and horizontal mesh laying - Additional mesh and steel bar. When laying the bottom mesh, the main stress steel bar should be located below the mesh hole. After laying the net, the main reinforcement bar should be above the net hole.