梁板式高桩结构毕业设计

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中文题目(中文,黑体,二号) 结构类型,如:梁板式高桩结构

英文题目(Times New Roman,二号),如:Design for Multipurpose Wharf Enginnering of

XX Port

如:Beam-and-slab High-piled Structure

摘 要

[鼠标左键三击选择该段落,输入替换之。] 中文摘要应将毕业设计或论文的内容要点简短明了地表达出来,约300~500字左右(限一页),字体为宋体小四号。内容应包括工作目的、设计或研究方法、成果和结论,语言力求精炼。为了便于文献检索,应在本页下方另起一行注明论文的关键词(3-5个)。

关键词: [关键词1] ; [关键词2] ; [关键词3] ; [关键词4]

1、“摘要”两字之间空两格,采用三号字黑体、居中,与内容空一行。 2、摘要内容首行空两格,采用小四号宋体,行间距设为1.25倍行距。 3、“关键词”三字采用小四号黑体、顶格。 4、关键词内容采用小四号宋体接排。

ABSTRACT

\内容应与中文摘要相同。字体为Times New Roman小四号。]\

KEY WORDS:\; \; \; \

1、“ABSTRACT”采用三号字、Times New Roman字体、加黑、居中、与内容空一行。

2、ABSTRACT内容采用小四号Times New Roman字体编排,空两格,行间距设为1.25倍行距。

3、“Key words”采用小四号、Times New Roman字体、加黑、顶格编排。 4、Key words内容采用小四号、Times New Roman字体、接排。

目 录

第1章 绪论(正式论文去掉本章)(居中、小二号、黑体) ············································ 1 1.1 毕业设计的目的和意义(小三号、黑体、顶格) ····················································· 2 1.2 毕业设计的过程、内容和要求(小三号、黑体、顶格) ········································· 2 1.2.1 准备阶段的主要工作(四号、宋体,顶格) ······················································ 2 1.2.2 设计阶段的主要工作 ······························································································ 3 1.2.3 答辩阶段的主要工作 ······························································································ 4 1.3 总体步骤框图 ················································································································· 4 第一部分 设计说明书(本行在正式论文中去掉) ······························································ 1 第1章 设计背景 ······················································································································ 1 1.1 工程概述 ························································································································· 1 1.2 设计原则 ························································································································· 1 1.3 设计依据 ························································································································· 1 1.4 设计任务 ························································································································· 1 第2章 设计资料 ······················································································································ 2 2.1 安全等级 ························································································································· 2 2.2 地形条件 ························································································································· 2 2.3 水文条件 ························································································································· 2 2.4 气象条件 ························································································································· 2 2.5 地质条件 ························································································································· 2 2.6 泥沙条件 ························································································································· 2 2.7 地震条件 ························································································································· 2 2.8 荷载条件 ························································································································· 3 2.9 施工条件 ························································································································· 3 第3章 设计成果 ······················································································································ 4 3.1 总体设计成果 ················································································································· 4 3.2 结构方案成果 ················································································································· 4 3.3 施工图设计成果 ············································································································· 4 3.4 关键性技术要求 ············································································································· 4 3.5 设计成果评价 ················································································································· 4 第二部分 设计计算书(本行在正式论文中去掉) ···························································· 5 第4章 总平面设计 ·················································································································· 5 4.1 工程规模 ························································································································· 5 4.2 布置原则 ························································································································· 5

4.3 设计船型 ························································································································· 6 4.4 作业条件 ························································································································· 6 4.5 总体尺度 ························································································································· 6 4.5.1 码头泊位长度 ·········································································································· 6 4.5.2 码头横向宽度 ·········································································································· 6 4.5.3 码头前沿高程 ·········································································································· 6 4.5.4 码头前沿停泊水域尺度 ·························································································· 7 4.5.5 码头前船舶回旋水域尺度 ······················································································ 7 4.5.6 陆域设计高程 ·········································································································· 7 4.5.7 航道设计尺度 ·········································································································· 7 4.6 平面方案比选 ················································································································· 7 4.7 工艺设计 ························································································································· 7 4.7.1 装卸工艺 ·················································································································· 8 4.7.2 缓冲设备 ·················································································································· 8 4.7.3 系船设备 ·················································································································· 8 4.7.4 附属设备 ·················································································································· 8 第5章 结构选型 ······················································································································ 9 5.1 结构型式 ························································································································· 9 5.2 构造设计 ························································································································· 9 5.2.1 基桩 ·························································································································· 9 5.2.2 桩帽 ·························································································································· 9 5.2.3 横梁 ·························································································································· 9 5.2.4 纵梁 ·························································································································· 9 5.2.5 面板面层 ················································································································ 10 5.2.6 靠船构件 ················································································································ 10 5.2.7 其他构造 ················································································································ 10 5.3 结构布置 ······················································································································· 10 5.4 作用分析 ······················································································································· 10 5.4.1 永久作用 ················································································································ 10 5.4.2 可变作用 ················································································································ 10 5.4.3 偶然作用 ················································································································ 11 第6章 结构设计 ···················································································································· 12 6.1 面板设计 ······················································································································· 12 6.1.1 计算图式 ················································································································ 12 6.1.2 计算参数 ················································································································ 13 6.1.3 作用分析 ················································································································ 13

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度的确定、作用(荷载)的确定、工程概算、构件内力计算、作用效应组合、强度计算、抗裂验算、结构稳定验算等。

设计图纸要求选择完成总平面布置图、结构图(平面图、立面图、剖(断)面图)、桩位图、主要构件的施工配筋图等,总数不少于6张,其中至少有一张手工绘制,绘图比例为1:50或1:100。总平面布置图应表示出各种建筑物的相对位置、基本尺度和高程、道路及绿化布置、各种生产设施和生产辅助设施的位置和主要尺度等,对于码头设计要表示出典型货种的装卸工艺。在图纸说明中要说明工程规模、高程基准面和其它需要说明的问题,必要时可列出图例表和工程量表。结构图要绘出所选择方案的标准断面图、平面图和立面图,注明主要高程、水位和尺寸,结合断面图绘出地质分层情况,注明各层土壤的主要物理力学指标。对于图中难以表示清楚的问题,在说明中加以注明。列出推荐方案的主要技术经济指标。指定构件的配筋图包括侧视图(或平面图)、必要的断面图、钢筋明细表和说明等,对于重要而复杂的细部构造要绘制细部图,对预制构件要绘制吊点位置图。

外文翻译要求翻译与本专业毕业设计(论文)相关的外文资料,不少于2000汉字。

1.2.3 答辩阶段的主要工作

每个毕业同学均要进行毕业答辩,要求对自己的设计任务、设计过程和设计成果进行简要介绍,并回答答辩委员提出的各种问题。

1.3 总体步骤框图

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第一部分 设计说明书(本行在正式论文中去掉)

第1章 设计背景

1.1 工程概述

简要概述工程项目的名称、地址、规模及使用要求分析(现有港域设施、各货种吞吐量前景预测、船型发展分析、存在的问题、建设的必要性)。

1.2 设计原则

(一) 总体设计符合国家、地方经济发展规划和总体部署,遵循国家和行业有关工程建设法规、政策和规定。

(二) 结合国情,采用成熟的技术、设备和材料,使工程设计安全可靠、使用方便、工程量少、总造价低、施工进度快,获得较好的经济效益和社会效益。

(三) 注重工程区域生态环境保护,不占用土地,方便管理,节省投资。

1.3 设计依据

结合设计任务列出主要的设计依据,如设计任务书、相关规范标准、现有港区形势图、设计参考书等。

1.4 设计任务

基于工程使用要求提出设计任务(设计范围、标准和要求)。

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第2章 设计资料

本部分分析项目的工程环境和条件对工程设计、建设、运行的可能影响。

在港口航道与海岸工程的设计工作中,设计资料主要包括地形、地质、水文、气象、施工、地震以及与设计相关的标准、规范、手册、参考书等。

2.1 安全等级

2.2 地形条件

包括地理位置,地貌,水域、岸线、陆域的地形和地物状况,分析其有利和不利因素,充分利用现有地形地物,主要用于确定工程总平面布置。

2.3 水文条件

包括水位(设计高低水位、施工水位、极端高低水位)、水流(流向、流速等)、波浪(主波向、设计波高等),主要用于确定工程总平面布置、结构选型、荷载条件、施工条件等。

2.4 气象条件

包括风、雨、雾、气温、冰凌等,主要用于确定总平面布置、荷载条件和施工条件。如强风向和常风向影响总平面布置、建筑物和船舶的风荷载、雨雾冰条件影响施工和泊位作业天数等。

2.5 地质条件

包括工程建设区域的纵向和横向地质剖面图、物理力学性能指标,主要用于结构型式比选和结构稳定验算。例如浅层地基承载力较高时,沉桩困难,可考虑重力式结构;如浅层为承载力低、压缩性高的软土,深层存在承载力高的硬土层时,可考虑采用高桩码头;如中小码头工程、中等密实地基且下部无较坚硬持力层时,可考虑采用板桩码头。

2.6 泥沙条件

包括工程建设海区的含沙量分布、泥沙运动规律,结合水流条件分析其是否影响港口的建设和使用,主要用于确定工程总平面布置(如防波堤、港池口的平面布置)。

2.7 地震条件

设计任务书给出或根据《建筑抗震设计规范》(GB50011-2001)查出工程地域的设计烈度、设计基本地震加速度、设计地震分组等抗震设计参数。

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2.8 荷载条件

针对工程使用要求,分析确定作用于水工建筑物上的主要荷载,并给出相应标准值。 如:永久作用(材料重度、土的重度和内摩擦角标准值、海水密度、设备设施重量等);可变作用(堆货荷载、起重机械荷载、运输机械荷载、铁路荷载、汽车荷载、缆车荷载、人群荷载、施工荷载等)。

2.9 施工条件

包括材料供应、现场施工条件(水、电、运输)、施工单位技术力量及机械性能、混凝土构件的预制能力、水上施工能力等。主要用于结构选型,使得工程设计能够与施工能力相匹配,以便顺利实施。

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第3章 设计成果

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3.1 总体设计成果

简要说明工程规模、平面布置方案(水域、码头、陆域及其各组成部分的平面位置和主要尺度,如水域中的转头水域、回旋水域、防波堤,码头中的泊位数、泊位尺度,陆域中的仓库、堆场、供电、供水及其它生产生活辅助设施等)、工艺设计(如装卸工艺)等成果。(说明自己设计的总体布置原则)

3.2 结构方案成果

简要说明自己所设计的水工建筑物的结构方案(结构型式、结构构造及尺度)、结构安全度、主要作用(荷载)、工程概算等。

3.3 施工图设计成果

介绍主要构件的计算图式、主要技术参数(强度、刚度等)、内力计算方法、计算成果(稳定性、强度验算、抗裂验算)、施工图。

3.4 关键性技术要求

对于工程的施工顺序、施工计划安排及重要工序的施工方法、技术要求和质量控制等提出自己的想法和意见。

3.5 设计成果评价

客观地总结自己的毕业设计过程,评价毕业设计的成果,并对设计方案及毕业设计工作的改进提出建议。

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5.2.5 面板面层

5.2.6 靠船构件

5.2.7 其他构造

主要是各构件之间的连接处理,参考《港工建筑物》“4.2.7”。

5.3 结构布置

参考教材《港工建筑物》“4.3 高桩码头建筑物的结构布置”。

面层、面板、纵梁、横梁、桩帽、基桩、靠船构件、系船设备、防冲设备、工艺管沟等。

5.4 作用分析

参考设计任务书、高桩码头设计与施工规范(JTJ 291-98)“3.1”和“3.2”、《港口工程荷载规范》(JTJ215-98)、水运工程抗震设计规范(JTJ225-98)。

确定所有作用在结构上的作用(荷载)的标准值,一般包括自重、土压、水压、波浪、水流、地震以及使用荷载(船舶荷载、机械荷载)等。

尤其注意:为了搞清标准值、组合值、准永久值、作用、作用效应、效应组合等概念,建议详细看明白港口工程荷载规范(JTJ215-98)的“3 作用的分类及组合”。

5.4.1 永久作用

量值随时间的变化与平均值相比可以忽略的作用。如结构自重力、预加应力、土重力及由永久作用引起的土压力、固定设备重力、固定水位的静水压力及浮托力等。

高桩码头各部位混凝土强度等级参考高桩码头设计与施工规范(JTJ 291-98)“3.1.9”。 土压力标准值的计算参考重力式码头设计与施工规范(JTJ290-98)“3.5”。

5.4.2 可变作用

量值随时间的变化与平均值相比不可忽略的作用。包括堆货、起重和运输机械荷载、汽车、铁路、缆车、人群、船舶、风、浪、水流、施工荷载、可变作用引起的土压力。毕业设计主要考虑以下几项:

(一)堆货均布荷载

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(二)流动机械荷载

(三)船舶作用荷载

主要包括与船舶有关的系缆力、挤靠力和撞击力。

注意:水平集中力(如系缆力和撞击力)的横向分力在各排架中要进行分配,分配系数参考高桩码头设计与施工规范(JTJ 291-98)“附录A”。

5.4.3 偶然作用

不一定出现,一旦出现,其量值很大且持续时间很短的作用。毕业设计主要考虑地震惯性力。

参考水运工程抗震设计规范(JTJ225-98)。

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第6章 结构设计

严格来说,高桩码头是一个空间整体结构体系,应该按照空间问题计算,但实际设计中多将其视为平面问题进行处理,即仅取一个排架作为计算单元,这种简化的前提是:(1)码头分段的长度远大于码头宽度,使得纵向刚度较小,横向刚度相对较大,各横向排架近似于独立工作;(2)码头分段内横向排架的间距、结构、荷载条件、承载能力基本相同。

由于排架中设有叉桩,使得排架整体的水平位移较小,水平荷载产生的内力也较小,因此假定排架主要受到竖向荷载的影响,水平荷载完全由叉桩承担;

由于横梁抗弯刚度远大于桩的抗弯刚度,且横梁跨度小于桩长,使得横梁的线刚度远大于桩的线刚度,当横梁与桩交接处受到弯矩作用时,桩端分配的弯矩很小,在计算中往往可以忽略,因此可假定桩与横梁之间为铰接,在竖向荷载作用下桩只受到轴向力而不受弯。

由于时间较紧,选择1~2个典型构件(高桩码头通常选择横向排架,包括典型面板、横梁、基桩,选择进行岸坡稳定分析)进行施工图设计。

参考高桩码头设计与施工规范(JTJ 291-98)“4 板梁式码头设计”

6.1 面板设计

按照结构平面布置和选型,确定自己的板型是空心板还是实心板(预制板、现浇板、叠合板),并判断哪些区域是单向板,哪些区域是双向板,选择计算一块四边与纵横梁相连的双向板进行计算。

6.1.1 计算图式

参考高桩码头设计与施工规范(JTJ 291-98)“4.1 板”、《港工建筑物》“4.4.1面板内力计算”之“1计算图式”。

另外,要区分施工期和使用期,施工期一般按简支板计算,使用期则需要根据板与支座的连接方式确定。

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6.1.2 计算参数

主要指计算跨度、集中荷载传递宽度、单向板弯矩计算宽度、单向板剪力计算宽度等。

参考高桩码头设计与施工规范(JTJ 291-98)“4.1 板”、《港工建筑物》“4.4.1面板内力计算”。

6.1.3 作用分析

面板上的永久作用和可变作用(包括短暂状况和持久状况)。

永久作用:主要是结构自重,包括磨耗层、现浇面层、预制面板,给出重度及厚度。 可变作用:

(1)短暂状况:施工荷载(参考港口工程荷载规范》JTJ215-98)、预制板吊运荷载。 (2)持久状况:堆货均布荷载、起重运输机械荷载等。

6.1.4 作用效应

(1)短暂状况(施工期):按简支板计算 永久作用:板自重引起的内力;

可变作用:施工荷载引起的内力;预制板吊运按四点支撑板查《建筑结构静力计算手册》计算双向弯矩。

(2)持久状况(使用期):根据板与支座的连接方式确定为连续板或四边简支板。 永久作用:结构自重(磨耗层、现浇面层、预制面板)引起的内力。

可变作用:堆货均布荷载、起重运输机械荷载等引起的内力,注意,通常情况下堆货均布荷载、多台起重运输机械不可能同时作用在一块面板上,因此需要计算出不同可变荷载作用下的内力,取最大的作为控制内力即可。

6.1.5 效应组合

计算出各种组合状况下板的长短跨跨中和支座处弯矩。 一.承载力极限状态的作用效应组合: (1)持久状况作用效应的持久组合:

参考高桩码头设计与施工规范(JTJ 291-98)“3.2.8”。

(2)短暂状况作用效应的短暂组合:

参考高桩码头设计与施工规范(JTJ 291-98)“3.2.8”。

二.正常使用极限状态的作用效应组合:

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(1)持久状况作用的短期效应组合:

参考高桩码头设计与施工规范(JTJ 291-98)“3.2.12”。

(2)持久状况作用的长期效应组合:

参考高桩码头设计与施工规范(JTJ 291-98)“3.2.12”。

6.1.6 验算配筋

参考港口工程混凝土结构设计规范(JTJ 267-98)。

抗弯、抗剪、抗扭、抗压、抗冲切(对于板而言,主要是流动作业机械的局部轮压,双向板抗冲切承载力参考高桩码头设计与施工规范JTJ 291-98“4.1.10”),根据各构件的规定分别计算。

6.1.7 抗裂验算

参考港口工程混凝土结构设计规范(JTJ 267-98)“3.3”、“5.6”、“5.7”、“6.4”、“6.5”。

6.2 纵梁设计

6.2.1 计算图式

参考高桩码头设计与施工规范(JTJ 291-98)“4.2 纵梁和横向排架”、《港工建筑物》“4.4.2”。纵梁为预应力钢筋砼叠合梁,面板以下部分为预制安装预应力钢筋砼梁,上部与面板连接部分为现浇砼叠合部分。

需分别按施工和使用两个阶段计算纵梁内力。

(1)施工期:预制轨道梁安装在桩帽上,按简支梁计算,作用在梁上的荷载为预制梁及现浇接头混凝土自重,此时梁的有效断面为预制断面。

(2)使用期:纵梁按连续梁计算,作用在梁上的荷载为码头面板、面层自重及使用期的可变荷载作用。此时梁的有效断面为叠合断面。纵梁的内力计算参考高桩码头设计与施工规范(JTJ 291-98)“4.2.5”。

6.2.2 计算参数

列表写出纵梁的位置、断面、面积、面积矩、中和轴、惯性矩、砼标号、弹性模量、桩的支承系数,画出截面示意图等。

跨度,参考高桩码头设计与施工规范(JTJ 291-98)“4.2.1”、《港工建筑物》“4.4.2”。

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6.2.3 作用分析

纵梁上的永久作用和可变作用(包括短暂状况和持久状况)。

永久作用:主要是结构自重,包括预制纵梁、现浇接头、磨耗层、面层、预制面板,给出重度及尺寸。

可变作用:堆货均布荷载、起重运输机械荷载、集装箱箱角荷载等。

6.2.4 作用效应

(一)永久作用标准值产生的作用效应

(1)施工期:只考虑预制纵梁的自重及现浇面板接缝混凝土(即叠合部分)的重量,面板自重由横梁承担。考虑施工时接缝混凝土未达到设计强度,故按简支梁计算。

预制部分自重:

施工期承载能力极限状态设计值: 施工期正常使用极限状态设计值:

(2)使用期:按弹性或刚性支承连续梁计算。内力计算参考高桩码头设计与施工规范(JTJ 291-98)“4.2.5”。等跨等刚度刚性支承连续梁可查《建筑结构静力计算手册》,不等跨不等刚度刚性支承连续梁用三弯矩方程式计算;弹性支承连续梁用五弯矩方程式计算。

(二)可变作用标准值产生的作用效应:

堆货均布荷载、起重运输机械荷载等引起的内力,注意不同可变荷载同时存在的可能性。活荷载作用下按内力影响线法求得各截面最大内力。

6.2.5 效应组合

计算出各种组合状况下纵梁的跨中和支座处的弯矩、剪力、支座反力。 一.承载力极限状态的作用效应组合: (1)持久状况作用效应的持久组合:

参考高桩码头设计与施工规范(JTJ 291-98)“3.2.8”。

二.正常使用极限状态的作用效应组合: (1)持久状况作用的长期效应组合:

参考高桩码头设计与施工规范(JTJ 291-98)“3.2.12”。

6.2.6 验算配筋

参考港口工程混凝土结构设计规范(JTJ 267-98)。

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抗弯、抗剪、抗扭、抗压、抗冲切,根据各构件的规定分别计算。

6.2.7 抗裂验算

参考港口工程混凝土结构设计规范(JTJ 267-98)“3.3”、“5.6”、“5.7”、“6.4”、“6.5”。

6.3 横向排架

横梁内力计算分别按施工期和使用期两个阶段计算。

6.3.1 计算图式

横梁为预应力钢筋砼叠合梁,面板以下部分为预制安装预应力钢筋砼梁,上部与面板连接部分为横梁的现浇砼叠合部分。

需分别按施工和使用两个阶段计算横梁内力。

(一)安装期:叠合层砼未达到强度设计值,有效断面为预制断面,作用在梁上的荷载为永久荷载(预制构件自重、接头砼自重、预制板自重、叠合层自重)+本阶段施工可变荷载(本例不考虑),需要按安装步骤分阶段计算其内力。

(1)安装纵梁、横梁(搁置在桩帽上)以及靠船构件预制部分-横梁为简支梁。 (2)现浇纵横梁接头-横梁为简支梁。

(3)安装面板、现浇面板接头砼(包括纵横梁叠合部分)-此时纵横梁接头砼已经达到强度设计值,横梁为预制断面弹性支承连续梁。

(二)施工期后段及使用期

此时叠合层砼达到强度设计值,梁的有效断面为叠合断面,作用在梁上的荷载为永久荷载(叠合构件自重、预制板自重、码头面层自重)+本阶段施工可变荷载(本例不.............考虑)或使用阶段可变荷载(船舶、堆货等),按弹性支承连续梁计算。 ........

横向排架的内力计算参考高桩码头设计与施工规范(JTJ 291-98)“4.2.7”。

6.3.2 计算参数

横梁一般为预应力混凝土叠合梁。首先列表明确施工期和使用期横梁的位置、断面、面积、面积矩、中和轴、惯性矩、砼标号、弹性模量、桩的支承系数,画出截面示意图等。

跨度,参考高桩码头设计与施工规范(JTJ 291-98)“4.2.2”。

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6.3.3 作用分析

横梁上的永久作用和可变作用(包括短暂状况和持久状况)。

永久作用:主要是结构自重,包括预制横梁、现浇接头、磨耗层、面层、预制面板、纵梁传来的支座反力、靠船构件等,给出重度及尺寸。

可变作用:船舶荷载、堆货均布荷载、起重运输机械荷载、集装箱箱角荷载等。

6.3.4 作用效应

(一)永久作用标准值产生的作用效应

(1)施工期:按照施工过程分别计算预制横梁、预制纵梁、靠船构件、面板、面层等的自重。注意区分在施工不同阶段横梁按简支梁或连续梁计算内力。

(2)使用期:按弹性支承连续梁计算。内力计算参考高桩码头设计与施工规范(JTJ 291-98)“4.2.7”。

(二)可变作用标准值产生的作用效应:

堆货均布荷载、起重运输机械荷载等引起的内力,注意不同可变荷载同时存在的可能性。

6.3.5 效应组合

计算出各种组合状况下纵梁的跨中和支座处的弯矩、剪力、支座反力。 一.承载力极限状态的作用效应组合: (1)持久状况作用效应的持久组合:

参考高桩码头设计与施工规范(JTJ 291-98)“3.2.8”。

二.正常使用极限状态的作用效应组合: (1)持久状况作用的长期效应组合:

参考高桩码头设计与施工规范(JTJ 291-98)“3.2.12”。

6.3.6 验算配筋

参考港口工程混凝土结构设计规范(JTJ 267-98)。

抗弯、抗剪、抗扭、抗压、抗冲切,根据各构件的规定分别计算。

6.3.7 抗裂验算

参考港口工程混凝土结构设计规范(JTJ 267-98)“3.3”、“5.6”、“5.7”、“6.4”、“6.5”。

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6.4 基桩设计

主要参考《港口工程桩基规范》JTJ254-98和《港口工程桩基规范》JTJ254-98(局部修订)。局部修订主要针对的是水平承载力验算。只考虑承载能力极限状态下持久状况作用效应的持久组合,内容包括垂向承载力、桩身内力计算、桩身强度验算。

6.4.1 计算原则

桩身内力计算采用假想嵌固点法,按平面刚架计算。仅计算持久状况,短暂状况与持久状况相比,内力较小,不起控制作用,故可不作计算。

6.4.2 计算参数

包括桩的自由长度、受弯长度、假想嵌固点深度、水平地基反力系数等。

6.4.3 作用分析

基桩上作用的永久作用和可变作用(持久状况)。

6.4.4 作用效应

持久状况永久作用和可变作用产生的内力。

6.4.5 效应组合

持久状况作用效应的持久组合,参考高桩码头设计与施工规范(JTJ 291-98)“3.2.8”。

6.4.6 桩身强度验算

参考《港口工程桩基规范》JTJ254-98。

6.4.7 桩基承载力验算

参考《港口工程桩基规范》JTJ254-98,只考虑竖向承载力。

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6.5 岸坡稳定分析

主要参考《港口工程地基规范》(JTJ250-98)。结构为挡土墙式接岸结构,认为地基已经被加固,在地基上打灌注桩后再设置挡土墙。

6.5.1 计算原则

(1)岸坡稳定计算采用总应力法,按平面问题考虑,假定滑动体是一个刚体,滑动面是圆弧面,持久状况用毕肖普法计算,短暂状况及偶然状况用简单条分法计算。

(2)按《港口工程地基规范》(JTJ250-98)计算,持久状况土的抗剪强度指标采用固结快剪指标,短暂状况土的抗剪强度指标采用三轴不排水剪强度指标,并考虑土的强度增长,偶然状况土的抗剪强度指标采用固结快剪指标。持久状况采用极端低水位,短暂状况及偶然状况采用设计低水位。

(3)偶然状况岸坡稳定计算,采用圆弧滑动面法计算,并满足《水运工程抗震设计规范》(JTJ225-98)中的有关条文规定。

(4)沉降计算按《港口工程地基规范》(JTJ250-98)中的有关规定执行。 (5)渗流力用替代法计算,即在极端低水位以上零压线以下用饱和重度计算滑动力矩,用浮重度计算稳定力矩。

(6)岸坡稳定计算的最小抗力分项系数参考《港口工程地基规范》(JTJ250-98)“表5-4-1”。

(7)加荷速率由稳定要求控制。

(8)在稳定计算中不计入桩的抗滑作用。 (9)所有计算建议采用实验室设计软件完成。

6.5.2 计算条件

地质(土的物理力学指标、压缩性能)、水位、地震、地表荷载。

6.5.3 稳定验算

6.6 整体稳定分析

需要验算结构整体稳定性。

参考教材《港工建筑物》“4.7 高桩码头建筑物整体稳定性的验算”、港口工程地基规范(JTJ250-98)。

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外文资料及译文

外文资料及译文

一、外文资料:

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外文资料及译文

二、译文:

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毕业设计/论文/任务书

毕业设计/论文/任务书

天津城市建设学院

毕 业 设 计 /论文/ 任 务 书

系 专业 班 姓名 学号 设计/论文/题目:

完成期限:自 年 月 日至 年 月 日止

指导 教 师: 教研室主任:

系 主 任: 学 生 签 字 : 批 准 日期: 接受任务日期: 年 月 日

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毕业设计/论文/任务书

一、设计原始依据(资料):/一、毕业论文的主要内容:(包括研究内容及目标,以及拟采用的研究方法、途径等)/

二、设计内容和要求:(说明书、专题、绘图、试验结果等)/二、毕业论文阶段需完成的主要工作:(包括查阅文献与文献综述、外文翻译、调查研究以及论文撰写等)/

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设计/研究/进度计划表

设计/研究/进度计划表

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附录

附录

1.×××

××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××

1、附录另起一页,与正文连续编排页码。 2、“附录”二字用小二号黑体、居中。

3、附录内容编排应和正文及图、表的编排要求相一致。4、行间距设为1.25倍行距。

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