EPC工程科技创效应用指南（2020版）

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EPC工程科技创效应用指南（2020版） 中国建筑第二工程局有限公司 China Construction Second Engineering Bureau Co.Ltd 前 言 为积极响应中建集团“一创五强”战略目标，围绕局“五大突破，六大提升”的 要求，提升全局的科技创效能力，推动局高质量发展，局编制了《科技创效应用指南 （2020版）》系列图册。图册分为房建工程、公路工程、地铁工程、EPC工程、机电 工程、钢结构工程、装饰装修工程、文化旅游类工程和核电工程等九个分册，每个分 册由设计优化、施工优化、科技成果转化和实用新技术四大部分组成，旨在为一线工 程技术人员提供有益的创效参考。请图册使用者根据工程特点灵活运用。能达到举一 反三、抛砖引玉之效果亦是编撰者之初心。 《科技创效应用指南（2020版）》系列图册主要由西南公司、土木公司、华北公 司、三公司、安装公司、华东公司、装饰公司、核电公司编制完成，局专家委员会做 了最后的审查，在此一并表示感谢。 随着科技创效工作的深入推进，相信会有更多、更好的创效做法不断涌现。希望 广大工程技术人员及时收集、整理并反馈给我们，以便《科技创效应用指南》及时更 新。 二〇二〇年九月 目 录 第一部分 设计优化·········································································4 一、投标阶段优化·········································································4 二、建筑专业优化·········································································8 三、基坑支护优化·······································································36 四、结构专业设计优···································································40 五、机电专业及室外管网设计···················································74 第二部分 施组方案优化·································································106 一、整体·······················································································106 二、地基与基础方案优化···························································129 三、主体施工方案优化·······························································146 四、二次结构方案优化·······························································172 五、机电安装方案优化·······························································190 第三部分 科技成果转化·································································196 一、地基与基础···········································································196 三、主体结构···············································································220 四、二次结构方案·······································································255 五、机电工程···············································································264 6 第一部分、设计优化 一、投标阶段优化 7 投标阶段优化 合同优化 实施/优化效果：方便EPC项目设计费结算，早期回收项目成本 适用范围：所有EPC项目 1.目前大多数EPC项目 合同中只约定项目总承 包费用，支付也是根据 项目进度支付，前期投 入设计成本不能及时回 收，所以EPC项目合同 中需明确设计费总价/ 单价或设计费取费规则， 明确设计费支付进度、 节点、比例条款。 应用图片 8 投标阶段优化 概算优化（一） 实施/优化效果：方案优化，节约项目成本 适用范围：地下室层高设计 1.主要技术内容： （1、图片不限表现形式，CAD示意图、效果图、实景照片均 满足规范、使用合理的前提 下，有效控制地下室层高 可。2、每项创效内容的文字和图片内容总篇幅控制在1-3页， 2.技术指标： 尽可能详细反映施工过程。） 合理控制结构梁高（结构形 式、柱网布置、顶板覆土厚 度、上部消防荷载等）； 综合布置管线，相互避让， 减少交叉； 优化地下室车库地面排水； 如某项目地下室层高优化 0.3m，节省造价约260万。 应用图片 9