20米的箱梁,有多少吨钢筋、多少吨纲绞线、多少方砼

2025-03-15 07:36:24
推荐回答(5个)
回答1:

预制20米箱梁(梁高1.2米,梁宽2.4米)HRB335用量为20924KG,HPB300为4417KG,15.2钢绞线3225KG,混凝土102.4立方。

箱梁钢筋施工时先绑扎底板和腹板钢筋,绑扎底板钢筋前,在底模两端设胎模以控制底板主筋的位置。主筋间距从外往内依次分别为70mm、70mm、123mm、100mm。底板钢筋焊接的接头尽可能错开各孔的弯矩最大处,相邻钢筋的接头错开35d。

底板钢筋安装完成按照图纸设置通气孔,采用直径50mm的PVC管绑扎在钢筋骨架上,PVC管两端密封,距梁端距离分别为6000px和12250px,两端通气孔对称布置,每片梁板设置4个通气孔。PVC管在低板钢筋绑扎牢固,位置正确,并在管内灌满细砂避免浇筑混凝土时漏人管道造成堵塞。



扩展资料:

底板、腹板构造钢筋绑扎完成后,按照设计要求用Φ8钢筋焊接波纹管定位钢筋网架,钢筋网架焊接成“井”字形。严格控制钢筋骨架的位置,曲线段每1250px设一道,直线段2500px设置一道,纵横坐标准确。定位钢筋井字架与钢筋骨架焊接固定,防止浇筑混凝土期间产生位移。

定位井字架设置好后进行波纹管的安装,安装前对波纹管进行逐根检查,确保无裂缝,管内无杂物。采用内径50mm高密度聚乙烯塑料波纹管,管道接头连接采用大一号的波纹管,在波纹管接头处将波纹管接口锤平。

以防在穿钢绞线时引起波纹管翻卷,严重时会导致管道堵塞,穿筋困难,接头连接长度为875px,每端对称旋入,。接缝处做好密封,防止水泥浆进入管道。波纹管弯折处采用圆曲线过渡,为保证管道圆顺及波纹管的位置准确、牢固,在波纹管中加塑料管,并在浇筑混凝土过程中抽动塑料管。

参考资料来源:百度百科-箱梁

回答2:

刚查的高速公路通用图,预制20米箱梁(梁高1.2米,梁宽2.4米)HRB335用量为20924KG,HPB300为4417KG,15.2钢绞线3225KG,混凝土102.4立方,中跨边跨有一点点区别,数量不大。以上数据不包含现浇段钢筋和预应力束,需要可以给上工程量数量表。

回答3:

4.483T钢筋,1.085T钢绞线,28.92m³ C50砼

回答4:

15.2

回答5:

15

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