目前的建筑大多以鋼材構(gòu)成，并且建筑越來越密集，一旦發(fā)生火災(zāi)，一時難以撲滅。業(yè)內(nèi)人士指出鋼結(jié)構(gòu)(工程結(jié)構(gòu))的構(gòu)件中要屬鋼柱占。立柱是整個輕鋼結(jié)構(gòu)建筑的主要承壓構(gòu)件，在火災(zāi)中由于長時間的高溫，會產(chǎn)生局部（part)屈曲、整體屈曲和截面屈服，這就需要涂刷鋼結(jié)構(gòu)防火涂料。

At present, most of the buildings are made of steel, and the buildings are more and more dense. Once there is a fire, it is difficult to extinguish it. Industry insiders pointed out that the steel structure (engineering structure) components should be steel column. The column is the main pressure bearing component of the whole light steel structure building. Due to the long-time high temperature in the fire, it will produce partial buckling, overall buckling and section yield, which requires the steel structure fireproof coating.

防火涂料立柱是鋼結(jié)構(gòu)(工程結(jié)構(gòu))中的首要承重構(gòu)件，防火涂料涂刷立柱就會增加鋼結(jié)構(gòu)的耐火極限，在抗火設(shè)計中首先要保證鋼柱的安全，防火涂料在鋼柱的應(yīng)用又是很廣泛(extensive)的，所以，施工團(tuán)隊在施工的時候一定要注意鋼柱的重要性，在購買鋼柱防火涂料時一定要選擇正規(guī)的防火涂料生產(chǎn)(Produce)廠家，購買，確保鋼結(jié)構(gòu)鋼柱部件的安全。

Fire retardant coating column is the primary load-bearing component in steel structure (engineering structure). Painting the column with fire-retardant coating will increase the fire-resistant limit of steel structure. In fire-resistant design, the safety of steel column should be ensured first. The application of fire-retardant coating in steel column is extensive. Therefore, the construction team must pay attention to the importance of steel column during construction and purchase fire-retardant coating for steel column When you must choose the formal fire retardant coating manufacturer, purchase, to ensure the safety of steel column components of steel structure.

一、鋼結(jié)構(gòu)(工程結(jié)構(gòu))工程防火涂料的種類選擇

1、 Type selection of fire retardant coating for steel structure (engineering structure)

就以省棗莊市為例，每年涉及(to involve)到鋼結(jié)構(gòu)(工程結(jié)構(gòu))的建設(shè)工程約有一百余個；發(fā)現(xiàn)在實(shí)際工程中鋼結(jié)構(gòu)(工程結(jié)構(gòu))防火涂料的正確選用上存在一些問題，常常有一些混淆亂用現(xiàn)象，筆者分析(Analyse)認(rèn)為其中大致有以下三種情況：

Taking Zaozhuang City as an example, there are more than 100 construction projects involving steel structure (engineering structure) every year. It is found that there are some problems in the correct selection of fire retardant coating for steel structure (engineering structure) in practical projects, and there are often some confusion and misuse. The author analyzes and thinks that there are three situations as follows:

一是把室內(nèi)鋼結(jié)構(gòu)(工程結(jié)構(gòu))防火涂料與室外鋼結(jié)構(gòu)防火涂料相混淆。室外使用環(huán)境要比室內(nèi)嚴(yán)酷得多，涂料在室外要經(jīng)受日曬雨淋，風(fēng)吹冰凍，應(yīng)該選用耐水、耐凍融、耐老化、強(qiáng)度（strength)高的防火涂料。但在實(shí)際巡查中，發(fā)現(xiàn)有些工程的室外鋼結(jié)構(gòu)防火保護(hù)使用了僅適用于室內(nèi)的防火涂料。

One is to confuse the fire retardant coating of indoor steel structure (engineering structure) with that of outdoor steel structure. The outdoor use environment is much harsher than the indoor environment. The coating should be exposed to the sun, rain, wind and freezing. The fire retardant coating with water resistance, freeze-thaw resistance, aging resistance and high strength should be selected. However, in the actual inspection, it is found that the fire-proof coating only suitable for indoor is used in some projects.

二是耐火極限要求大于1.5h的承重鋼結(jié)構(gòu)(工程結(jié)構(gòu))不能選用正確的鋼結(jié)構(gòu)防火涂料。有些設(shè)計人員錯誤地認(rèn)為，防火涂料的耐火時間與涂料的厚度成正比，只要增加防火涂料的厚度就可以相應(yīng)提高涂料的耐火時間，從而錯誤地把一些超薄型涂料用于耐火極限要求大于1.5h的承重鋼結(jié)構(gòu)。

The second is that the correct fire retardant coating cannot be selected for load-bearing steel structure (engineering structure) whose fire resistance limit is greater than 1.5h. Some designers mistakenly believe that the fire resistance time of the fire retardant coating is directly proportional to the thickness of the coating. As long as the thickness of the fire retardant coating is increased, the fire resistance time of the coating can be increased accordingly. Therefore, some ultra-thin coatings are wrongly applied to the load-bearing steel structure whose fire resistance limit is greater than 1.5h.