遮陽棚工程廣泛應(yīng)用于超高層和大跨度結(jié)構(gòu)領(lǐng)域。目前，遮陽棚屋面滲漏是常見的質(zhì)量問題，會(huì)影響建筑物的使用，給業(yè)主造成經(jīng)濟(jì)損失。下面就從設(shè)計(jì)和施工方面總結(jié)出濟(jì)南遮陽棚屋面滲漏的主要原因和常見的防滲漏措施，以供參考。

Sunshade engineering is widely used in super high-rise and large-span structures. At present, the roof leakage of sunshade is a common quality problem, which will affect the use of buildings and cause economic losses to owners. The following summarizes the main causes of roof leakage of Jinan sunshade and common anti leakage measures from the design and construction aspects for reference.

泄漏的原因

Cause of leakage

1.設(shè)計(jì)

1. Design

(1)屋面雨水系統(tǒng)設(shè)計(jì)時(shí)，未按規(guī)范要求設(shè)置溢流措施。因此，在雨水超過系統(tǒng)的排水能力后，雨水可能會(huì)溢出搭接接縫，導(dǎo)致遮陽棚滲漏。其中，采用隱扣和釘板連接的屋面易發(fā)生嚴(yán)重漏水。

(1) During the design of roof rainwater system, overflow measures are not set according to the specification requirements. Therefore, after the rainwater exceeds the drainage capacity of the system, the rainwater may overflow the lap joint, resulting in leakage of the sunshade. Among them, the roof connected with concealed buckle and nail plate is prone to serious water leakage.

(2)缺少窗戶上下飛檐、屋脊擋雨板、內(nèi)外角等細(xì)部的詳細(xì)設(shè)計(jì)圖紙，導(dǎo)致缺乏經(jīng)驗(yàn)的施工隊(duì)伍無法嚴(yán)格進(jìn)行施工，造成漏水隱患。

(2) The lack of detailed design drawings for the upper and lower cornices of windows, roof ridge flashing, internal and external corners and other details led to the construction team lacking experience being unable to carry out the construction strictly, resulting in potential water leakage.

(3)屋面檁條存在截面過小、間距過大的設(shè)計(jì)缺陷。因此，在風(fēng)荷載作用下，檁條、壓型板變形過大，造成結(jié)構(gòu)缺陷，導(dǎo)致積水。

(3) Roof purlins have design defects of too small section and too large spacing. Therefore, under the action of wind load, the purlins and profiled plates deform too much, resulting in structural defects and water accumulation.

2.建設(shè)

2. Construction

(1)天溝的焊接質(zhì)量不達(dá)標(biāo)，材質(zhì)防腐處理不到位，或者天溝下的保溫措施做得不好，造成天溝滲漏。同時(shí)，夏季溫差大，容易結(jié)露。

(1) The welding quality of the gutter is not up to standard, the anti-corrosion treatment of the material is not in place, or the thermal insulation measures under the gutter are not well done, resulting in the gutter leakage. At the same time, the temperature difference in summer is large and it is easy to condense.

(2)墻面上的檁條不直，窗框之間有縫隙，或窗下開口與鋼結(jié)構(gòu)之間密封不良，窗玻璃與型材之間有缺陷，導(dǎo)致窗上開口的閃邊片滲水，窗下檐積水。

(2) The purlin on the wall is not straight, there is a gap between the window frames, or the seal between the opening under the window and the steel structure is poor, and there is a defect between the window glass and the profile, resulting in water seepage from the flashing edge of the opening on the window and water accumulation under the window eaves.

(3)建設(shè)節(jié)點(diǎn)不按照指定的要求構(gòu)造或不適當(dāng)?shù)?如密封短期的卷材不緊,固定的點(diǎn)是罕見的,白色的鐵皮上嘴是畸形的,密封材料密封不好,內(nèi)部的角落欄桿和其他根不要求或弧太小,導(dǎo)致的漏鋼結(jié)構(gòu)屋頂。

(3) The key construction nodes are not constructed according to the specified requirements or are not properly treated. For example, the short-term sealing coil is not tight, the fixed point is rare, the white iron sheet upper mouth is deformed, the sealing material is not well sealed, the internal corner railings and other roots are not required or the arc is too small, resulting in the leakage of steel structure roof.

防控措施

Prevention and control measures

(1)根據(jù)遮陽棚熱脹冷縮的特點(diǎn)。遮陽棚結(jié)構(gòu)選用浮頂，屋面板橫向采用咬口式鎖緊，即垂直縫鎖緊，縱向連接采用夾芯擠出應(yīng)使用鎖緊。同時(shí)，頂板重疊長度不得小于40mm。該結(jié)構(gòu)體系可滑動(dòng)，密封性能好，防水效果好，抗風(fēng)能力強(qiáng)。

(1) According to the characteristics of heat expansion and cold contraction of the sunshade. Floating roof is selected as the sunshade structure. The roof panel is locked horizontally by bite type locking, i.e. vertical seam locking. The longitudinal connection is locked by sandwich extrusion. At the same time, the overlapping length of the top plate shall not be less than 40mm. The structure system is slidable, with good sealing performance, good waterproof effect and strong wind resistance.

(2)設(shè)計(jì)時(shí)，遮陽棚系統(tǒng)應(yīng)嚴(yán)格按照規(guī)范要求設(shè)計(jì)，并設(shè)置溢流措施。同時(shí)補(bǔ)充設(shè)計(jì)窗上下飛檐、屋脊擋雨板、內(nèi)外墻角等細(xì)節(jié)詳圖，防止雨水滲漏。

(2) During design, the sunshade system shall be designed in strict accordance with the specification requirements, and overflow measures shall be provided. At the same time, the detailed drawings such as the upper and lower cornices of the design windows, the roof ridge flashing and the inner and outer wall corners are supplemented to prevent rainwater leakage.

遮陽棚屋面滲漏的原因和防滲漏措施這一問題的相關(guān)內(nèi)容就講解到這里了，您可以對(duì)此有個(gè)了解，有什么相關(guān)的問題隨時(shí)來我們網(wǎng)站http://m.gzwintom.com咨詢看看吧！

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