在設(she)計方面(mian)，首先(xian)應嚴格按照(zhao)設(she)計規范，不(bu)(bu)得因為節省造價(jia)而隨意降低設(she)計指標，同時應結合施工現場實(shi)際情況進行(xing)設(she)計。對于(yu)(yu)雨雪較大(da)的地(di)區，當(dang)建(jian)筑屋(wu)(wu)面(mian)跨度較大(da)時，屋(wu)(wu)面(mian)坡度不(bu)(bu)宜低于(yu)(yu)10%。設(she)計屋(wu)(wu)面(mian)檁(lin)條，應該保守(shou)些，不(bu)(bu)能(neng)盲目節省鋼材，而降低檁(lin)條的高度。檁(lin)條高度取高值，有利(li)于(yu)(yu)防(fang)止屋(wu)(wu)面(mian)出現不(bu)(bu)均勻(yun)的下撓，避免出現屋(wu)(wu)面(mian)積水。
當單面坡(po)長(chang)小(xiao)于(yu)(yu)12m時(shi)，屋(wu)面可(ke)不設橫(heng)縫(feng);當單面坡(po)長(chang)大(da)于(yu)(yu)12m時(shi)，板(ban)間需設橫(heng)縫(feng)搭(da)(da)(da)(da)接(jie)(jie)(jie)。橫(heng)縫(feng)一般(ban)采(cai)用(yong)順水(shui)搭(da)(da)(da)(da)接(jie)(jie)(jie)，為保證防水(shui)效果，必須滿足一定的(de)搭(da)(da)(da)(da)接(jie)(jie)(jie)長(chang)度(du)，且(qie)搭(da)(da)(da)(da)接(jie)(jie)(jie)長(chang)度(du)長(chang)短與屋(wu)面坡(po)度(du)有(you)(you)關，當坡(po)度(du)小(xiao)于(yu)(yu)等于(yu)(yu)1/10時(shi)，一般(ban)不宜小(xiao)于(yu)(yu)300mm;當坡(po)度(du)大(da)于(yu)(yu)1/10時(shi)，一般(ban)不宜小(xiao)于(yu)(yu)200mm，并要求在搭(da)(da)(da)(da)接(jie)(jie)(jie)處(chu)高低錯(cuo)開，上下兩層板(ban)之(zhi)間粘貼防水(shui)密封(feng)膠條(tiao)。這樣(yang)不僅可(ke)有(you)(you)效防止滲水(shui)，還可(ke)防止鋼板(ban)切口處(chu)氧(yang)化銹(xiu)蝕。本文轉載自(zi)專業制(zhi)作“拱(gong)形(xing)(xing)屋(wu)頂(ding)”、“拱(gong)形(xing)(xing)屋(wu)面”、“無梁拱(gong)”、“無梁拱(gong)形(xing)(xing)屋(wu)頂(ding)”、“金屬拱(gong)形(xing)(xing)屋(wu)頂(ding)”、“江蘇拱(gong)形(xing)(xing)屋(wu)頂(ding)”的(de)江蘇杰達鋼結(jie)構工程有(you)(you)限(xian)公司。同時(shi)應注意(yi)搭(da)(da)(da)(da)接(jie)(jie)(jie)處(chu)一般(ban)采(cai)用(yong)自(zi)攻螺(luo)釘固定在波(bo)峰位置。若(ruo)設置在波(bo)谷上，必須要有(you)(you)可(ke)靠的(de)防水(shui)措施。
拱形(xing)屋(wu)面低波(bo)彩(cai)鋼(gang)板(ban)(ban)(ban)用(yong)連(lian)(lian)接(jie)(jie)(jie)件(jian)(jian)直接(jie)(jie)(jie)與檁(lin)條(tiao)連(lian)(lian)接(jie)(jie)(jie)，每波(bo)或隔一(yi)個波(bo)設置(zhi)一(yi)個，但(dan)搭(da)接(jie)(jie)(jie)波(bo)處(chu)必須設置(zhi)連(lian)(lian)接(jie)(jie)(jie)件(jian)(jian)。屋(wu)面高波(bo)彩(cai)鋼(gang)板(ban)(ban)(ban)用(yong)連(lian)(lian)接(jie)(jie)(jie)件(jian)(jian)與固定支(zhi)架連(lian)(lian)接(jie)(jie)(jie)，每波(bo)設置(zhi)一(yi)個。另一(yi)種上(shang)(shang)下板(ban)(ban)(ban)連(lian)(lian)接(jie)(jie)(jie)方(fang)法是(shi)壓(ya)(ya)板(ban)(ban)(ban)擠(ji)緊(jin)(jin)法，在(zai)兩塊彩(cai)鋼(gang)板(ban)(ban)(ban)的(de)上(shang)(shang)面和下面各設一(yi)塊與彩(cai)鋼(gang)板(ban)(ban)(ban)板(ban)(ban)(ban)型(xing)相同的(de)鍍(du)鋅鋼(gang)板(ban)(ban)(ban)，兩板(ban)(ban)(ban)間設防水密(mi)封條(tiao)，用(yong)緊(jin)(jin)固螺栓(shuan)將(jiang)其緊(jin)(jin)密(mi)擠(ji)壓(ya)(ya)連(lian)(lian)接(jie)(jie)(jie)在(zai)一(yi)起(qi)。為避免板(ban)(ban)(ban)的(de)長(chang)(chang)向(xiang)搭(da)接(jie)(jie)(jie)處(chu)引起(qi)漏水，也可將(jiang)壓(ya)(ya)型(xing)板(ban)(ban)(ban)生產(chan)設備運至現場安(an)裝(zhuang)，軋制從(cong)屋(wu)脊到檐口的(de)整(zheng)張屋(wu)面板(ban)(ban)(ban)，邊軋制邊安(an)裝(zhuang)，無需(xu)長(chang)(chang)向(xiang)搭(da)接(jie)(jie)(jie)，避免不必要的(de)滲漏。
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