1钢结构施工方案

1 钢结构施工方案Construction Procedure for Steel Structure

1.1 概述General

1.1.1工程概况Project Introduction

上海乙烯裂解装置安装工程标段Ⅰ共有钢结构约5819吨，主要工程量详见表1.1-1，包括装置内区域间管廊结构、设备框架结构、设备附属结构及其它零星结构，主要钢结构全部由H型钢柱和钢梁构成，采用大六角头高强度螺栓连接。

There is total 5819 tons steel structure in Shanghai ethylene cracking plant installation work package I. The main amounts of works please see the following table 1.1-1. It includes pipe rack between units of project, steel support frames for equipment, accessory steel structure of equipment & other little structural steel. All the main steel structures are made of H-shape columns and beams. They are connected by heavy hexagon steel bolts and nuts.

钢结构工程量一览表表1.1-1

Schedule of Amount of Steel Structure Works Table 1.1-1

钢结构安装工程的主要工作内容包括材料检验、构件预制与安装、构件防腐与防火施工以及焊缝无损检测等。

The main works of structural steel installation include materials inspection, member prefabrication, member preservation and fire prevention and NDT of welding etc.

本工程实行工厂化作业，钢结构预制将根据合同条件及、建设单位的要求全部在施工生产暂设的结构加工场区进行；安装施工时，根据结构柱基础移交进度情况，统筹安排钢结构预制安装进程，总体原则是：优先进行管廊结构的安装，后进行钢框架的安装，对妨碍大型设备运输、吊装的钢结构可依据现场进度情况适当推迟，以确保乙烯裂解装置总体进度计划实施。管廊结构的安装，拟利用50吨～270吨等不同等级的吊车将预制合格的构件逐件吊装完成；设备框架的安装，如设计与安装条件许可，拟在其安装位置就近预制成片或箱形的单元结构，利用大型吊车整体安装。

Factorial fabrication shall be taken in this project. All the prefabrication works of steel structure will be carried out at our steels structure fabrication workshop. The installation works of steel structure will be carried out according to the turning over condition of foundation. The prefabrication and installation works of steel structure will be given an overall consideration. The general principle is that first install pipe rack, then install steel frames. For structural steel that will get in the way of transport and lifting works of heavy duty equipment the installation works can be postponed according as the construction progress of site. We intend to use the cranes capacities from 50 tons through 270 tons to lift that prefabricated components. If it is permission by designing and installation conditions, for the installation of steel frames we propose to assemble them into one piece and lifted with a heavy duty crane.

每道工序完成后应及时向后续工序如防腐、管道安装、设备安装及防火层施工等办理书面工序交接。

After each process step finished, written handing over works shall be taken to the following process step in timely such as preservation, pipe installation, equipment installation and fire prevention etc.

1.1.2 编制依据Establishment Reference

——02CNSHY26SECCO121上海赛科石油化工有限公司《乙烯装置安装工程施工标段Ⅰ招标文件》及其答疑文件。

Package I Tender Files of Installation Works of Ethylene Plant and clarification files of Shanghai SECCO Petrochemical Co. Ltd.

——GB50205-95 《钢结构工程施工及验收规范》

Code For Construction And Acceptance Of Steel Structure Engineering

——SH3076-96 《石油化学工程建筑结构设计规范》

Code for Design of Building structures in Petrochemical Engineering

——JGJ82-91 《钢结构高强螺栓连接的设计、施工及验收规范》

Code for Design, Fabrication and Acceptance of High Strength Bolts

——JGJ81-91 《建筑物钢结构焊接规范》

Specification for Welding of Structural Steel in Buildings

——SH3507-1999 《石油化工钢结构工程施工验收规范》

Code of Construction and Acceptance of Steel Structure Engineering for Petrochemical Industry

——PH-00-TSC-ST-0002 《现场结构设计原则》

Site Structural Philosophy

——SD-00-TSC-ST-0001 《钢结构材料、制作和安装标准》

Standard For Steel Structures –Material, Fabrication And Erection

——SD-00-TSC-ST-0002 《钢结构设计标准》

Standard For Steel Structures – Design

——SD-00-TSC-CV-0012 《钢结构防火标准》

Steel Structures - Fireproofing Standard

——SD-00-TSC-MS-0023 《保护涂层标准及使用要求》

Standard For Protective Coatings And Application Requirements

——PH-00-TSC-MS-0001 《材料选择和防腐原则》

Material Selection And Corrosion Protection Philosophy