1. Overview

鋼筋焊接網(wǎng)是二十世紀(jì)初國(guó)外首創(chuàng)一種在工廠中焊接形成的網(wǎng)狀鋼筋制品。經(jīng)過(guò)近百年的應(yīng)用與發(fā)展，在國(guó)外已被建筑界廣泛應(yīng)用，被認(rèn)為是一種新型、、省時(shí)、、強(qiáng)化混凝土結(jié)構(gòu)的建筑用材。

Welded steel mesh is the first steel mesh product welded in factories abroad in the early twentieth century. After nearly a hundred years of application and development, it has been widely used in the construction industry abroad, and is considered as a new, efficient, time-saving, energy-saving, reinforced concrete structure building materials.

它主要用于多層和高層建筑、混凝土公路、機(jī)場(chǎng)跑道、隧道、混凝土管、橋梁、水利、電力壩基、碼頭、倉(cāng)庫(kù)、圍欄等領(lǐng)域。尤其在美國(guó)、德國(guó)、日本、新加坡等國(guó)早已普遍采用。鋼筋焊接網(wǎng)除用來(lái)制作鋼筋混凝上預(yù)制構(gòu)件外，更多的是用于現(xiàn)澆混凝土結(jié)構(gòu)，大量用于工業(yè)與民用建筑的墻板、樓板、屋面板等領(lǐng)域。

It is mainly used in multi-storey and high-rise buildings, concrete highways, Airport runways, tunnels, concrete pipes, bridges, water conservancy, power dam foundations, wharfs, warehouses, fences and other fields. Especially in the United States, Germany, Japan, Singapore and other countries have been widely used. In addition to making prefabricated members on reinforced concrete, welded steel mesh is mostly used in cast-in-place concrete structures, and is widely used in wallboard, floor, roof and other fields of industrial and civil buildings.

2、鋼筋焊接網(wǎng)

2. Welded steel mesh

鋼筋焊接網(wǎng)是采用普通低碳鋼熱軋圓盤(pán)條或低碳鋼無(wú)扭控冷熱軋盤(pán)條為原料，通過(guò)冷軋或冷拔減徑而成的光面或帶肋鋼筋。經(jīng)過(guò)矯直定尺切斷后按一定的間距組焊成不同規(guī)格的鋼筋網(wǎng)，如圖1、圖2所示（略）。一般鋼網(wǎng)的縱向鋼筋可采用單根或雙根鋼筋，而橫向鋼筋只能采用單根鋼筋。

Welded steel bar net is a smooth or ribbed steel bar, which is made of common low carbon steel hot-rolled disc rod or low carbon steel non-twist controlled cold-rolled hot-rolled wire rod as raw material and is reduced by cold rolling or cold drawing. After straightening, leveling, leveling and cutting, steel meshes of different specifications are welded at a certain distance, as shown in Fig. 1 and Fig. 2 (abbreviated). Generally, single or double steel bars can be used for longitudinal reinforcement of steel mesh, while single steel bar can only be used for transverse reinforcement.

鋼筋焊接網(wǎng)按形狀分為定型焊接網(wǎng)和定制焊接網(wǎng)兩種，定型焊接網(wǎng)在兩個(gè)方向上的鋼筋間距和直徑可以不同，但在一個(gè)方向上具有相同的鋼筋直徑、相同的鋼筋間距和相同的鋼筋長(zhǎng)度，而定制鋼筋網(wǎng)的形狀尺寸應(yīng)根據(jù)需方要求，由供需雙方協(xié)商確定。

The welded net of steel bar can be divided into two kinds according to its shape: the welded net of steel bar and the welded net of steel bar. The spacing and diameter of steel bar of the welded net of steel bar can be different in two directions, but in one direction there are the same diameter of steel bar, the same spacing of steel bar and the same length of steel bar. The shape and size of the welded net of steel bar should be determined according to the requirement of the demander through consultation between the supplier and

鋼筋焊接網(wǎng)與傳統(tǒng)的綁軋鋼筋比較具有間距尺寸準(zhǔn)確、強(qiáng)度高、剛度好、承載均勻、抗裂性能強(qiáng)、節(jié)約鋼材、安裝速度快、勞動(dòng)強(qiáng)度小等特點(diǎn)。它是把鋼筋的優(yōu)越性與工廠化的生產(chǎn)進(jìn)行結(jié)合，使材料性能得到更大發(fā)揮，同時(shí)使鋼筋工程由手工操作轉(zhuǎn)為工廠化的生產(chǎn)。據(jù)了解天津普濟(jì)河道立交橋維修工程原設(shè)計(jì)為直徑010．0111lB、間距10mm普通I級(jí)鋼筋綁軋網(wǎng)，其工程綜合費(fèi)用為152．5萬(wàn)元，而采用焊接鋼筋網(wǎng)工程綜合費(fèi)用僅為135．2萬(wàn)元，節(jié)約工程造價(jià)17萬(wàn)元，節(jié)省鋼材30％，節(jié)約工期90％，節(jié)約人工70％。

Compared with the traditional bonded steel bar, the welded steel bar net has the characteristics of accurate spacing size, high strength, good stiffness, uniform load-bearing, strong crack resistance, steel saving, fast installation speed and low labor intensity. It combines the advantages of reinforcing steel bar with the factory production, so that the material properties can be brought into full play, and at the same time, the steel bar engineering can be changed from manual operation to factory production. It is understood that the original design of the maintenance project of Puji River overpass in Tianjin was the ordinary grade I steel bar binding and rolling net with a diameter of 010.0111lB and a spacing of 10mm. The comprehensive cost of the project is 1525,000 yuan, while the comprehensive cost of the project using welded steel bar net is only 1352,000 yuan, which saves the cost of the project by 170,000 yuan, 30% of the steel, 90% of the construction period and 70% of the labor.

3結(jié)語(yǔ)

3 conclusion

鋼筋焊接網(wǎng)作為一種新型建筑材料；1995年冶金部以YB／T076--95批準(zhǔn)發(fā)布鋼筋混凝土用焊接鋼筋網(wǎng)行業(yè)標(biāo)準(zhǔn)，1997年建設(shè)部以JGJ／T114?97批準(zhǔn)發(fā)布鋼筋焊接網(wǎng)混凝土結(jié)構(gòu)技術(shù)規(guī)程，1998年建設(shè)部把鋼筋焊接網(wǎng)列為“九五”計(jì)劃推廣應(yīng)用的建筑材料及建筑業(yè)進(jìn)一步推廣應(yīng)用的10項(xiàng)新技術(shù)之一。以上這些法規(guī)為鋼筋焊接網(wǎng)的發(fā)展提供了廣闊的空間，為提高焊接網(wǎng)的質(zhì)量提供了有力保證。

In 1995, the Ministry of Metallurgy approved the issuance of the industry standard for welded steel mesh for reinforced concrete with YB/T076-95, and in 1997, the Ministry of Construction approved the issuance of the technical regulations for welded steel mesh concrete structures with JGJ/T114?97. In 1998, the Ministry of Construction listed welded steel mesh as the key building materials and construction industry to be popularized in the Ninth Five-Year Plan. One of the 10 new technologies applied. The above regulations provide a broad space for the development of welded steel mesh and provide a strong guarantee for improving the quality of welded steel mesh.