1.箱梁鋼筋安裝時，根據(jù)防撞墻位置準確放線，拉雙線（底部和頂部）預埋防撞墻鋼筋；箱梁施工完成后檢查、調(diào)整預埋鋼筋位置，拉線綁扎剩余鋼筋，保護層墊塊應綁扎牢固，扎絲頭不得侵入保護層；穿入預埋管道（伸縮縫、斷縫處斷開鋼筋，按設計要求設置鋼套管）。

1. When the reinforcement of box girder is installed, according to the ition of the anti-collision wall, the double-line (bottom and top) is drawn to precisely embedding the anti-collision wall reinforcement; after the ctruction of box girder, the ition of the embedded reinforcement bar is checked and adjusted, the remaining reinforcement bar is tied by the wire, the cushion block of the protective layer should be firmly tied, and the wire-binding head should not penetrate the protective layer; and the embedded pipeline (expansion and contractio) should be penetrated. The steel bars are broken at the joints and the broken joints, and the steel sleeves are set up according to the design requirements.

常用防撞墻模具介紹的選材是很關鍵的，選材不當常常是造成模具使用壽命縮短的主要原因，選材不當:材料性能不良，不耐磨的冷態(tài)成形。當鐵制品長期置放于潮濕的室外環(huán)境中的時候，就容易引發(fā)生銹。

The material selection of common anti-collision wall dies is very important. The improper material selection is often the main reason for shortening the service life of dies. The improper material selection is poor material performance and cold forming without wear resistance. When iron products are placed in wet outdoor environment for a long time, it is easy to cause rust.

模具行業(yè)要想有長遠的發(fā)展，必須調(diào)整和優(yōu)化產(chǎn)業(yè)結構，既要繼續(xù)充分發(fā)揮傳統(tǒng)模具行業(yè)的優(yōu)勢，又要大力發(fā)展知識、技術密集型產(chǎn)業(yè)和新興產(chǎn)業(yè)。為適應市場對模具制造的短交貨期，高精度、低成本的迫切要求，模具將有如下發(fā)展趨勢。

防撞墻是為了防止車輛沖到道路以外的或者橋梁以外而設置的，一般在高速公路橋梁中多見。為了減少車輛對周邊周邊區(qū)域造成的危險性，防止車輛沖出橋梁也設置混凝土防撞墻。

Anti-collision walls are set up to prevent vehicles from rushing out of roads or bridges. They are usually found in highway bridges. In order to reduce the danger caused by vehicles to the surrounding areas, concrete anti-collision walls are also set up to prevent vehicles from rushing out of bridges.

近年來，隨著國家經(jīng)濟高速發(fā)展，全國基礎設施是建設漸入高潮，各地基礎設施建設如火如荼地開展起來，作為改善城市交通的重要手段之一，立交橋也在全國如雨后春筍般一座座矗立起來。防撞墻作為立交橋面系的重要組成部分，它不僅擔負著安全責任，還直接影響著橋梁的美觀，所以，如何對防撞墻施工質(zhì)量進行良好的控制也成了一個不可忽視的問題。