GRC外墻板的預(yù)埋件、連接件的設(shè)計(jì)應(yīng)符合《金屬與石材幕墻工程技術(shù)規(guī)范》JGJ 133的要求;正因?yàn)槿绱耍栽谠O(shè)計(jì)grc構(gòu)件的預(yù)埋件時我們需要考慮以下幾個因素：
The design of embedded parts and connectors of GRC exterior wall panel shall meet the requirements of technical code for metal and stone curtain wall engineering JGJ 133; Because of this, we need to consider the following factors when designing the embedded parts of GRC members:
1、有足夠的剛度和強(qiáng)度承受構(gòu)件在自重、風(fēng)荷載和地震荷載作用下傳遞給預(yù)埋件的內(nèi)力。
1. It has enough rigidity and strength to bear the internal force transferred to the embedded parts by the member under the action of self weight, wind load and earthquake load.
2、滿足運(yùn)輸、安裝吊運(yùn)過程中的施工荷載的要求。
2. Meet the requirements of construction load in the process of transportation, installation and lifting.
3、對于變形受到限制將產(chǎn)生較大內(nèi)力的構(gòu)件，其埋件應(yīng)與連接件共同組成可位移彈性接點(diǎn)體系。
3. For the member whose deformation is limited and will produce large internal force, the embedded parts and the connecting parts should form a displacement elastic joint system.
4、預(yù)埋件在GRC內(nèi)錨固牢固，錨固筋與鍍鋅埋件的連接不會破壞鍍鋅層。錨固筋的錨固長度符合鋼筋在混凝土中錨固長度的要求，并有足夠厚度的保護(hù)層。
4. The embedded parts are firmly anchored in the GRC, and the connection between the anchor bar and the galvanized embedded parts will not damage the galvanized layer. The anchorage length of the anchorage bar meets the requirements of the anchorage length of the steel bar in the concrete, and there is a sufficient thickness of the protective layer.
5、預(yù)埋件及錨固筋處構(gòu)件應(yīng)局部加強(qiáng)以適應(yīng)應(yīng)力集中的作用。
5. The components of embedded parts and anchorage bars should be strengthened locally to adapt to the effect of stress concentration.
6、預(yù)埋件位置正確。特別是處于邊緣部位的構(gòu)件如檐口、窗口、門口、轉(zhuǎn)角處的構(gòu)件，預(yù)埋件的位置與方向須保證正確。
6. The position of embedded parts is correct. Especially for the components at the edge, such as cornice, window, door and corner, the position and direction of the embedded parts must be correct.
7、外探預(yù)埋件的外探長度和鉆孔位置設(shè)計(jì)正確，適于安裝。
7. The length and drilling position of the embedded parts are designed correctly and suitable for installation.
對于重量大于50㎏的構(gòu)件須設(shè)置環(huán)，以固定索，使構(gòu)件除安裝節(jié)點(diǎn)外尚有非剛性的懸掛連接，以防止墜落。
For components with a weight of more than 50kg, a safety ring shall be set to fix the safety cable, so that the components have non rigid suspension connection in addition to the installation of nodes, so as to prevent falling.
GRC裝飾構(gòu)件的性能檢測
Performance test of GRC decorative components
GRC產(chǎn)品是按混凝土的抗凍性試驗(yàn)法，在零下10攝氏度時不用待15次反復(fù)凍融循環(huán)試驗(yàn)，無層與裂等現(xiàn)象發(fā)生，不僅有較高的不透水性，在潮濕狀態(tài)下還有較高的不透氣性。
GRC products are based on the frost resistance test method of concrete. When the temperature is below - 10 ℃, there is no need to wait for 15 times of repeated freeze-thaw cycle test, and there is no layer and crack phenomenon. GRC products not only have high impermeability, but also have high impermeability in wet state.
GRC構(gòu)件的使用年限
Service life of GRC components
根據(jù)正規(guī)檢測單位檢測，用硫鋁酸鹽水泥制成的玻璃纖維歐式構(gòu)件在自然環(huán)境中的使用壽命少為50年。
According to the national standard testing unit, the service life of glass fiber European style components made of sulphoaluminate cement in natural environment is at least 50 years.
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