This document provides specifications for a reinforced concrete bridge, including: 1) Reinforcing bar details with a total weight of 1,333.97 kg for 110 bars. 2) Concrete mix design for the deck with 73 quintals of cement, 5.88 cum of sand, and 8.82 cum of gravel to make a 12 cum deck. 3) Total weight of the reinforced concrete bridge is calculated to be 4,257.16 kg/cum, resulting in a uniform load of 250,321 N/m.

1. DATOS DEL PUENTE
Datos de Varillas
Varilla corrugada N° 6
Diámetro exterior φext=1/2” → 12.70mm
Peso 1.01 Kg/m
Norma ASTM-A-615
Numero de Mallas 2
Total varillas 12m 30 varillas 12m _1 malla 60 varillas 12m_2 mallas
Total varillas 6m 25 varillas 6m_1 malla 50 varillas 6m_2 mallas
Total varillas a comprar 110 varillas 12m
PESO TOTAL DEL HIERRO
Pvarillas=12.127Kg x 110 varillas = 1333.97Kg
Vvolumen de mallas=(6m) x (10m) x (0.20m)= 12.0𝑚3
𝑃 𝑇 =
1333.97𝐾𝑔
12𝑚3
= 111.16𝐾𝑔/𝑚3
𝑃 𝑇 =111.16Kg/𝑚3
Datos del Vehículo
Camión HINO GD8JLSA-1226
Peso Bruto Vehicular 13000Kg
CARGA PUNTUAL DEL VEHICULO
𝑊2 =
13000𝐾𝑔
2
W2 = 6500Kg → 63743.2N
DATOS DE LOS TUBOS
φexterior 12in
Espesor 0.33in
φinterior 11.67in
Sy 52000Psi
Longitud 12m
Número total de tubos 19
Peso por tubo 651.8Kg
Peso total de los tubos 15400Kg
CARGA DISTRIBUIDA EN TUBOS
VOLUMEN DEL PUENTE = 6m x 10m x 0.20m =12 𝑚3
12384.2𝐾𝑔
12𝑚3
= 1032𝐾𝑔/𝑚3

2. CEMENTO Datosde la Loza
Quintales de cemento = 73 q
Arena = 5.88 𝑚3
Ripio = 8.82 𝑚3
A = b x h
A = (10m x 6m)
A = 60m²
V = b x h x e
V = (10m x 6m x 0.20m)
V = 12 𝑚3
CEMENTO (C) ARENA (Ar) RIPIO (R)
𝑪 =
73
100𝑚2
= 0.73𝑞/𝑚2
C = 0.73 𝑞/𝑚2
x 60m²
C = 43.8q
C = 43.8q x 2 = 87.6q
Cemento = 8760Kg
𝑪 =
8760𝐾𝑔
12𝑚3
𝑨𝒓 =
5.88𝑚3
100𝑚2
= 0.0588𝑚
Ar = 0.0588m x 60m²
Ar = 3.53 𝑚3
Ar = 3.53 𝑚3
x 2 = 7.06 𝒎 𝟑
Ar= 7.06 𝒎 𝟑
x1500Kg/ 𝒎 𝟑
Ar = 10590Kg
𝑨𝒓 =
10590𝐾𝑔
12𝑚3
𝑹 =
8.82𝑚3
100𝑚2
= 0.0882𝑚
R = 0.0882m x 60m²
R = 5.30 𝑚3
R = 5.30 𝑚3
x 2 = 10.6 𝑚3
R= 10.6 𝒎 𝟑
x 1700Kg/ 𝒎 𝟑
R = 18020Kg
𝑹 =
18020𝐾𝑔
12𝑚3
𝑪 = 730𝐾𝑔/𝑚3
𝑨𝒓 = 883𝐾𝑔/𝑚3
𝑹 = 1501𝐾𝑔/𝑚3
PESO TOTAL DEL HORMIGÓN ARMADO
Peso TOTAL= Cemento + Arena + Ripio + Varillas + Tubos
Peso TOTAL= 730
𝐾𝑔
𝑚3 + 883
𝐾𝑔
𝑚3 + 1501
𝐾𝑔
𝑚3 + 111.16
𝐾𝑔
𝑚3 + 1032
𝐾𝑔
𝑚3 = 𝟒𝟐𝟓𝟕. 𝟏𝟔
𝑲𝒈
𝒎 𝟑
W1 = 4257.16
𝐾𝑔
𝑚3 × 60𝑚2
= 𝟐𝟓𝟓𝟒𝟐𝟗. 𝟔𝑲𝒈/𝒎→ 2503210.08N/m