Chapter 4

PPVC Module Production

第四章 模块生产

4.1 Reinforced Concrete (RC) PPVC Production

钢筋混凝土模块

4.1.1 Mould Process

Moulds are fabricated in steel with comprehensive design to withstand the handling and production process for the lifetime required in production. These moulds are three-dimensional and may be adjusted to cater for several combinations of dimensions. The factors that influence the concept of mould design are as follows:

模具是用钢制造的，设计全面，以承受操作和生产过程所需的寿命。这些模具是三维的，可以根据不同的尺寸组合进行调整。影响模具设计理念的因素如下:

4.1.2 Structural and MEP Works

结构和机电工程

Reinforced Concrete modules can be produced by integrating structures like column, beam, wall and slab as a single module. The production process comprises of the following steps:

钢筋混凝土模块可以通过将柱、梁、墙和板等结构集成为一个模块来生产。生产过程包括以下几个步骤:

在外壳完成后，应在场外进行试装，检查垂直和水平对准，并检查MEP服务的连续性。在建筑施工前，所有的卫生管道都要进行符合PUB要求的水(静水压)试验和气压试验。

4.1.3 Architectural Finishing and MEP Works

装修和机电工程

The architectural works shall be executed under the sheltered environment, by trained specific trades offsite.

建筑工程应在隐蔽的环境下，由经过培训的专业人员在场外进行。

The works shall comprise the following in the sequence of execution and on levelled platform.

按施工顺序及在平整平台上进行的工程包括以下内容。

4.2 Steel PPVC Production

钢结构模块生产

In order to ensure accuracy of the final product, special care must be given to each fabrication process, starting from design and fabrication of 2D and 3D jigs, procurement and preparation of structural steel member and the selection of the process, work sequence, method, machine and consumables used in the welding work.

为了确保最终产品的准确性,必须特别注意每一个制造过程,从2 d和3 d夹具的设计和制造,钢结构成员的采购和制备和选择的过程,工作顺序、方法、机器和耗材使用的焊接工作。

Whenever possible, customised welding robots could be used in place of manual welding to reduce the reliance on manpower and to increase productivity.

只要有可能，可使用定制焊接机器人代替手工焊接，以减少对人力的依赖，并提高生产率。

Figure: Robotic Welding Machine

机器人焊接机

Photographs Courtesy of Tiong Seng Contractors Pte Ltd and Steeltech Industries Pte Ltd

照片由中晟承建商Pte Ltd及Steeltech Industries Pte Ltd提供

4.2.1 2D and 3D Jigs

夹具

The jigs used in the fabrication work are designed and fabricated to withstand additional force caused by heat transmitted between and within the steel sections to ensure the accuracy of the 2D frame and 3D shell remain unchanged during and after welding work.

制作过程中使用的夹具，设计制作时能承受型钢之间和型钢内部的热传递所产生的附加力，保证焊接过程和焊接后二维框架和三维壳体的精度不变。

The total number of jigs required for each project is determined by the design and type of modules, the fabrication schedule/rate and the flexibility of the jigs. It is different from project to project.

每个项目所需的夹具总数由模块的设计和类型、制造进度/速度和夹具的灵活性决定。每个项目都不一样。

Photographs Courtesy of Moderna Homes Pte Ltd

照片由Moderna Homes Pte Ltd提供

4.2.2 Fabrication Process

制造工艺

钢结构是宝钢哦