2 sentences

1. 房屋的框架是由钢筋混凝土制成的。

   fáng​wū de kuàng​jià shì yóu gāng​jīn hùn​níng​tǔ zhì​chéng de.

   The frame of the house is made of reinforced concrete.

   Source: Dong Chinese Dictionary

2. 地基里铺设了大量钢筋，以保证建筑稳固。

   dì​jī lǐ pū​shè le dà​liàng gāng​jīn, yǐ bǎo​zhèng jiàn​zhù wěn​gù.

   A large amount of steel rebar was laid in the foundation to ensure the stability of the building.

   Source: Dong Chinese Dictionary