- In The Conventional Rigid Method The Mat Foundation Is Assumed To Be Infinitely Rigid Also The Soil With The Line Of A 1 (59.84 KiB) Viewed 64 times
- In The Conventional Rigid Method The Mat Foundation Is Assumed To Be Infinitely Rigid Also The Soil With The Line Of A 2 (38.52 KiB) Viewed 64 times
In the conventional rigid method, the mat foundation is assumed to be infinitely rigid. Also the soil with the line of action of the resultant "columnd loads. The plan of a mat foundation with a factored column loads is shown in Figure Q1. All columns section are planned to be 0.6 mx 0.6 m. Given the net allowable soil bearing capacity, qnecan is 30 kN/m² [Dalam kaedah tegar konvensional, asas rakit di anggapkan tidak terhingga tegar. Tekanan tanah juga diagihkan dalam garisan lurus, dan titik pusat bagi tekanan tanah adalah bersamaan dengan garisan tindakbalas beban lajur yang dikenakan. Pelan bagi asas rakit beserta beban tiang terfaktor ditunjukkan dalam Rajah Q1. Semua keratan tiang dicadangkan adalah bersaiz 0.6 mx 0.6 m. Diberi keupayaan bersih tanah yang dibenarkan, Guet fall) ialah 30 kN/m] y AB 700 KN H 600 KN 600 KN 1 1 1 14.6 m 14.3 2000 KN 2000 KN 1600 KN --->x (29.2 5.6 m 10 m 5.6 m 14.6 m 14.3 600 KN 700 KN 550 KN x 03 I J 10.6 m 10.6 m 10:3 10.3 Figure Q1 : Mat Foundations t ने
Determine the pressure on the soil, q below the points A, B, C, D, E and F. [Tentukan tekanan pada tanah, g di bawah titik A, B, C, D E dan FJ (10 Marks/ Markah) (b) The mat foundation shown in Figure Q1 has been divided into three strips, such as AGIF (B1 = 5.6 m), GHJI (B1 = 10 m) and HCDI (B1 = 5.6 m). Draw the shear and moment diagram for strip AGIF. [Asas rakit yang ditunjukkan dalam Rajah Q1 telah dibahagikan kepada tiga jalur, iaitu AGIF (B: – 5.6 m). GHJI (B) = 10 m) dan HCDJ (B. - 5.6 m). Lukiskan gambarajah daya ricih dan momen bagi jalur AGIF.] (6 Marks/ Markah) (c) Identify the thickness of the mat foundation if the critical section for diagonal tension shear will be at the column carrying 2000 kN of load at the edge of the mat foundation. Assuming that; the compressive strength of concrete at 28 days, f'c = 20.7 MN/m², normal weight concrete, 2 = 1, coefficient at edge column, as = 30, minimum cover steel reinforcement, 76 mm and diameter of steel bars, doar = 25 mm. Cmin = rinih diamanal akan berada di