论文总字数：29106字

摘 要

本工程为鑫辉大厦给排水工程设计项目。该办公楼为 10 层，建筑总高度为 38.8m，负一层为地下车库，层高 4.8m，一层高5.2m，标准层高 3.2m，屋顶机房层高 5.0m。地上建筑总面积（不含地下）为32000m2 ，地下一层建筑面积约为5000m2 ， 标准层建筑面积约为2748m2 。

给管进入建筑，负一层于二类高层民用建筑，耐量20L / s 。消火栓充实水内消火栓箱内均设有远地上部分为中危Ⅰ级层为3区，7~指示器、信号阀和末端淋在火灾前 10min 用水期灭火用水由地下一层

室内排水立管采用通气立管室排水经排水沟汇集用内排水系统，选择

关键词：给水系统 排水系统 消火栓系统 自动喷水灭火系统 雨水系统

Abstract

This project is the water supply and drainage engineering design project of Xinhui Building. The office building has 10 floors and the total height of the building is 38.8m. The lower floor is an underground garage with a height of 4.8m, the first floor height of 5.2m, a standard floor height of 3.2m and a roof computer room height of 5.0m. The total area of ​​the above-ground buildings (excluding underground) is 32,000 m², the construction area of ​​the underground floor is about 5000 m², and the standard floor construction area is about 2748 m².

The water supply system adopts a vertical partitioning parallel water supply mode, and two inlet pipes are introduced into the building from the municipal pipe network, and the third floor to the ground is directly supplied by the municipal pipe network, and the fourth to ten floors are pressurized by the water pump. The building belongs to the second-class high-rise civil building, the fire resistance level is two, the outdoor fire hydrant water consumption is 40L / s, and the indoor fire hydrant water consumption is 20L / s. The fire hydrant is filled with a height of 13m and the length of the hose is 25m. A fire hydrant is installed on the roof layer, and each indoor fire hydrant box is provided with a button for starting the fire pump remotely. The sprinkler system of the building adopts a wet automatic sprinkler system. The ground part is medium-risk I, the underground part is medium-risk II, divided into 5 zones, -1~2 is zone 1, and layer 3~4 is zone 2. 5~6 layers are 3 areas, 7~8 layers are 4 areas, and 9~10 layers are 5 areas. The alarm valve is located in the basement pump room. Water flow indicator, signal valve and terminal water test device are provided on each floor. The signals are sent to the fire control center for processing. The fire and spray in the building are provided 10 minutes before the fire. The water is provided by the integrated fire pressure booster of the roof box pump. The effective volume is 18m3. The fire extinguishing water is provided by the fire pool of the underground floor. The effective volume is 582m³，divided into two grids.

Both indoor and outdoor drainage are made of sewage and confluence, and are directly discharged into the municipal sewage pipe through the inspection well. The drainage riser adopts a double riser drainage system with a vented riser, one of which is separately drained and two to ten layers are concentrated for drainage. The drainage in the basement is collected and discharged to the sump through the drainage ditch, and is discharged to the inspection well by the submersible sewage pump. The rainwater drainage system of the building roof adopts the internal drainage system and selects the gravity flow system. The rainwater is collected by the roof rainwater bucket and discharged into the municipal rainwater pipe network by the rainwater riser.

Keyword: water-supply system；drainage system；hydrant system；automatic sprinkler system；rainwater system

目录

摘 要 2

Abstract 3

第一章 设计资料及设计任务 7

1.1设计资料 7

1.2设计任务 7

第二章 建筑内部给水系统 9

2.1给水方式确定 9

2.2用水量计算 9

2.2.1最高日用水量 9

2.2.2最高日最高时用水量 10

2.2.3设计秒流量 10

2.3系统所需压力计算 11

2.3.1确定给水系统最不利点 11

2.3.2管道沿程与局部损失计算 11

2.3.3水箱与水泵 20

第三章 建筑内部排水系统 21

3.1排水方式确定 21

3.2排水系统水力计算 21

3.2.1 21

3.2.2排水管计算 21

3.3通气立管的计算 28

3.4集水池与污水泵 28

第四章 建筑消防系统 29

4.1消火栓的布置 29

4.1.1基本概况 29

4.1.2消防用水量计算 29

4.1.3 29

4.1.4确定消火栓间距 30

4.2消火栓给水系统水力计算 30

4.2.1 30

4.2.2 31

4.2.3 32

4.2.4校核 32

4.2.5消火栓系统水力计算 33

4.2.6水泵结合器 35

4.2.7减压 35

4.2.8室外消火栓布置 36

4.2.9消防水池计算 36

4.2.10屋顶消防水箱 37

第五章 自动喷水灭火系统 39

5.1喷头的布置 39

5.1.1基本概况 39

5.1.2喷头的布置和选择 39

5.2自动喷水灭火系统水力计算 40

5.2.1基本公式 40

5.2.2喷淋系统水力计算 40

5.2.3 立管计算 47

5.3减压计算 47

第六章 雨水系统 49

6.1设计暴雨强度 49

6.2汇水面积划分 49

5.3设计雨水流量计算 50

6.4雨水斗选型 51

参考文献 52

谢辞 53

第一章 设计资料及设计任务

1.1设计资料

鑫辉大厦主体建筑为地上十层，地下一层。地下一层为车库，建筑面积约5000m²，地上一层为商铺，建筑面积约2300m²，二至十层为办公室，每层建筑面积2748m²，总建筑面积约32000m²，建筑总高度38.80m。一层高5.2m，二至九层高3.2m，十层高5m。

市政自来水压力约为: 0.28MPa。

1.2设计任务

1.设计计算说明书一本，包括如下内容：

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