公(gong)路钢(gang)(gang)混(hun)(hun)组(zu)合(he)桥(qiao)梁(liang)设(she)计与施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)规范：钢(gang)(gang)与混(hun)(hun)凝(ning)土接合(he)面宜设(she)在垂直方(fang)(fang)(fang)向受压的(de)位置。翼(yi)缘(yuan)型(xing)嵌(qian)入型(xing)外(wai)包(bao)型(xing)国(guo)内外(wai)已有(you)(you)多座波折腹(fu)(fu)板(ban)组(zu)合(he)桥(qiao)采用(yong)外(wai)包(bao)型(xing)结(jie)合(he)方(fang)(fang)(fang)式Altwipfergrund桥(qiao)德国(guo)杉谷川(chuan)桥(qiao)日本西田桥(qiao)日本辽宁宽甸桥(qiao)中(zhong)国(guo)江苏姚天路桥(qiao)中(zhong)国(guo)杭州(zhou)德胜路桥(qiao)中(zhong)国(guo)运宝黄河大桥(qiao)主(zhu)桥(qiao)中(zhong)国(guo)运宝黄河大桥(qiao)副(fu)桥(qiao)中(zhong)国(guo)云南地约科桥(qiao)中(zhong)国(guo)湖(hu)北(bei)鱼头(tou)河桥(qiao)中(zhong)国(guo)8、施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)中(zhong)关(guan)键(jian)技术现有(you)(you)的(de)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)方(fang)(fang)(fang)法(fa)（钢(gang)(gang)结(jie)构(gou)(gou)作(zuo)用(yong)没(mei)有(you)(you)发挥）满堂(tang)支架(jia)(jia)现浇(jiao)(jiao)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)挂篮悬(xuan)臂(bei)(bei)现浇(jiao)(jiao)假设(she)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)（存(cun)在较多问题）预制节段拼装架(jia)(jia)设(she)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)（充分利用(yong)钢(gang)(gang)结(jie)构(gou)(gou)作(zuo)用(yong)）波折钢(gang)(gang)腹(fu)(fu)板(ban)梁(liang)先行吊装施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)波折钢(gang)(gang)腹(fu)(fu)板(ban)梁(liang)先行顶(ding)(ding)(ding)推(tui)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)波折钢(gang)(gang)腹(fu)(fu)板(ban)梁(liang)作(zuo)为导梁(liang)整体(ti)顶(ding)(ding)(ding)推(tui)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)波折钢(gang)(gang)腹(fu)(fu)板(ban)梁(liang)异步悬(xuan)臂(bei)(bei)现浇(jiao)(jiao)架(jia)(jia)设(she)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)波折钢(gang)(gang)腹(fu)(fu)板(ban)梁(liang)异步悬(xuan)臂(bei)(bei)现浇(jiao)(jiao)架(jia)(jia)设(she)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)组(zu)合(he)折腹(fu)(fu)桥(qiao)梁(liang)由混(hun)(hun)凝(ning)土顶(ding)(ding)(ding)底板(ban)、折形(xing)钢(gang)(gang)腹(fu)(fu)板(ban)、横隔板(ban)、体(ti)内外(wai)预应力钢(gang)(gang)束等构(gou)(gou)成，其施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)方(fang)(fang)(fang)法(fa)主(zhu)要有(you)(you)满堂(tang)支架(jia)(jia)法(fa)、顶(ding)(ding)(ding)推(tui)法(fa)和悬(xuan)臂(bei)(bei)法(fa)。满堂(tang)支架(jia)(jia)法(fa)一(yi)般用(yong)在跨(kua)(kua)径较小(xiao)的(de)桥(qiao)梁(liang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)中(zhong)；顶(ding)(ding)(ding)推(tui)法(fa)一(yi)般用(yong)在等高截面、中(zhong)等跨(kua)(kua)径的(de)多跨(kua)(kua)桥(qiao)梁(liang)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)；对(dui)于(yu)大跨(kua)(kua)变截面组(zu)合(he)折腹(fu)(fu)梁(liang)桥(qiao)常(chang)用(yong)的(de)施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)方(fang)(fang)(fang)法(fa)是悬(xuan)臂(bei)(bei)节段法(fa)。组(zu)合(he)折腹(fu)(fu)梁(liang)桥(qiao)按传统悬(xuan)臂(bei)(bei)浇(jiao)(jiao)筑施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)时(shi)，作(zuo)业区(qu)jin限某一(yi)节段，顶(ding)(ding)(ding)底板(ban)浇(jiao)(jiao)筑时(shi)会互相干扰，施(shi)(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)期(qi)较长；顶(ding)(ding)(ding)底板(ban)及模(mo)板(ban)呈相对(dui)du立状态。实现箱梁(liang)骨(gu)架(jia)(jia)钢(gang)(gang)筋自动化生产。上海绿色环保的(de)铁路箱梁(liang)自动生产线厂家直销

分(fen)类标(biao)准并(bing)不(bu)一致钢(gang)(gang)桥(qiao)所用(yong)(yong)的(de)(de)(de)钢(gang)(gang)种主(zhu)要(yao)是(shi)(shi)(shi)低(di)碳钢(gang)(gang)和低(di)合(he)(he)金钢(gang)(gang)两类低(di)碳钢(gang)(gang)是(shi)(shi)(shi)指含(han)碳量为％～％的(de)(de)(de)钢(gang)(gang)低(di)合(he)(he)金钢(gang)(gang)是(shi)(shi)(shi)指各种合(he)(he)金元素(su)总含(han)量不(bu)超过(guo)(guo)3％的(de)(de)(de)钢(gang)(gang)的(de)(de)(de)牌(pai)号(hao)(hao)按以(yi)前的(de)(de)(de)习惯(guan)叫法(fa)：我国桥(qiao)梁(liang)(liang)用(yong)(yong)钢(gang)(gang)系(xi)列按屈(qu)服(fu)点(dian)大(da)致分(fen)成(cheng)三级(ji)(ji)(ji)。240MPa级(ji)(ji)(ji)的(de)(de)(de)有(you)3号(hao)(hao)钢(gang)(gang)(A3q)、16桥(qiao)(16q)；340MPa级(ji)(ji)(ji)的(de)(de)(de)有(you)16锰(meng)桥(qiao)(16Mnq)、14锰(meng)铌(ni)桥(qiao)(14MnNbq)；420MPa级(ji)(ji)(ji)的(de)(de)(de)有(you)15锰(meng)钒氮桥(qiao)(15MnVNq-A，-B，-C)。按现(xian)(xian)行标(biao)准，以(yi)屈(qu)服(fu)强(qiang)度的(de)(de)(de)拼音字母“Q”开头，后(hou)接屈(qu)服(fu)强(qiang)度(以(yi)MPa为单(dan)位(wei))，再接表示质(zhi)量等级(ji)(ji)(ji)、脱氧方(fang)法(fa)等的(de)(de)(de)符(fu)号(hao)(hao)。低(di)碳钢(gang)(gang)有(you)Q195、Q215、Q235、Q255及Q275共(gong)5种，常(chang)用(yong)(yong)者(zhe)是(shi)(shi)(shi)Q235(即(ji)A3钢(gang)(gang))低(di)合(he)(he)金度结构钢(gang)(gang)，计(ji)有(you)Q295、Q345、Q390、Q420、Q460；常(chang)用(yong)(yong)者(zhe)是(shi)(shi)(shi)Q345(即(ji)16Mn钢(gang)(gang))。质(zhi)量分(fen)为A、B、C、D、E共(gong)5级(ji)(ji)(ji)。对于A级(ji)(ji)(ji)，无韧(ren)性要(yao)求；对于B、C、D、E，均采用(yong)(yong)V形缺(que)口试件做试验(yan)（冲击(ji)韧(ren)性）。对桥(qiao)梁(liang)(liang)钢(gang)(gang)，另行制(zhi)(zhi)订了国标(biao)《桥(qiao)梁(liang)(liang)用(yong)(yong)结构钢(gang)(gang)》，常(chang)用(yong)(yong)者(zhe)为Q345q系(xi)列钢(gang)(gang)(C、D、E三个等级(ji)(ji)(ji))钢(gang)(gang)的(de)(de)(de)主(zhu)要(yao)力学性能指标(biao)强(qiang)度：强(qiang)度指标(biao)是(shi)(shi)(shi)弹(dan)性极限、屈(qu)服(fu)强(qiang)度(或屈(qu)服(fu)点(dian))极限强(qiang)度。变(bian)形：包括延伸率、断面(mian)收(shou)(shou)缩率、冷弯。韧(ren)性：钢(gang)(gang)材的(de)(de)(de)韧(ren)性包括冲击(ji)韧(ren)性和断裂韧(ren)性，指钢(gang)(gang)材在塑(su)性变(bian)形和断裂全过(guo)(guo)程中吸收(shou)(shou)能量的(de)(de)(de)能力，是(shi)(shi)(shi)钢(gang)(gang)材强(qiang)度和塑(su)性指标(biao)的(de)(de)(de)综合(he)(he)表现(xian)(xian)。海(hai)南如(ru)何定(ding)制(zhi)(zhi)铁(tie)路(lu)箱(xiang)梁(liang)(liang)自动(dong)生产线如(ru)何定(ding)制(zhi)(zhi)SLZ-30（3.0版） 箱(xiang)梁(liang)(liang)钢(gang)(gang)筋骨(gu)架生产线改变(bian)2.0版本的(de)(de)(de)分(fen)体式制(zhi)(zhi)造工艺；

可改变翼(yi)缘(yuan)板(ban)的(de)(de)(de)(de)(de)宽度或厚度来改变梁(liang)的(de)(de)(de)(de)(de)截面(mian)(mian)。翼(yi)缘(yuan)与(yu)腹板(ban)的(de)(de)(de)(de)(de)连(lian)接焊缝计算梁(liang)的(de)(de)(de)(de)(de)总体稳定主(zhu)梁(liang)的(de)(de)(de)(de)(de)局部(bu)稳定和(he)腹板(ban)中加(jia)劲肋的(de)(de)(de)(de)(de)布置(zhi)简支(zhi)(zhi)(zhi)钢(gang)(gang)桁(heng)(heng)(heng)梁(liang)桥(qiao)各组成(cheng)部(bu)分及(ji)其作(zuo)用钢(gang)(gang)桁(heng)(heng)(heng)梁(liang)的(de)(de)(de)(de)(de)组成(cheng)：1桥(qiao)面(mian)(mian)2桥(qiao)面(mian)(mian)系(xi)3主(zhu)桁(heng)(heng)(heng)架(jia)4联(lian)(lian)结系(xi)5制动撑(cheng)架(jia)6支(zhi)(zhi)(zhi)座(zuo)桥(qiao)面(mian)(mian)系(xi)由(you)(you)纵(zong)(zong)(zong)梁(liang)、横(heng)梁(liang)及(ji)纵(zong)(zong)(zong)梁(liang)间的(de)(de)(de)(de)(de)联(lian)(lian)结系(xi)组成(cheng)。主(zhu)桁(heng)(heng)(heng)是钢(gang)(gang)桁(heng)(heng)(heng)梁(liang)的(de)(de)(de)(de)(de)主(zhu)要承(cheng)重结构，它(ta)由(you)(you)上(shang)弦(xian)杆(gan)(chord)、下(xia)弦(xian)杆(gan)、腹杆(gan)(webmember)及(ji)节(jie)(jie)点(dian)(joint)组成(cheng)。倾斜的(de)(de)(de)(de)(de)腹杆(gan)称为(wei)斜杆(gan)，竖直的(de)(de)(de)(de)(de)腹杆(gan)称为(wei)竖杆(gan)。杆(gan)件(jian)交汇的(de)(de)(de)(de)(de)地方称为(wei)节(jie)(jie)点(dian)，纵(zong)(zong)(zong)向(xiang)(xiang)(xiang)两节(jie)(jie)点(dian)之间称为(wei)节(jie)(jie)间，用节(jie)(jie)点(dian)板(ban)(gussetplate)及(ji)高s强(qiang)螺栓(shuan)连(lian)接各主(zhu)桁(heng)(heng)(heng)杆(gan)件(jian)。竖向(xiang)(xiang)(xiang)荷(he)载(zai)的(de)(de)(de)(de)(de)传(chuan)(chuan)力途径荷(he)载(zai)通(tong)过(guo)桥(qiao)面(mian)(mian)传(chuan)(chuan)给(ji)纵(zong)(zong)(zong)梁(liang)，由(you)(you)纵(zong)(zong)(zong)梁(liang)传(chuan)(chuan)给(ji)横(heng)梁(liang)，再(zai)由(you)(you)横(heng)梁(liang)传(chuan)(chuan)给(ji)主(zhu)桁(heng)(heng)(heng)节(jie)(jie)点(dian)，然(ran)后(hou)通(tong)过(guo)主(zhu)桁(heng)(heng)(heng)的(de)(de)(de)(de)(de)受力传(chuan)(chuan)给(ji)支(zhi)(zhi)(zhi)座(zuo)，由(you)(you)支(zhi)(zhi)(zhi)座(zuo)传(chuan)(chuan)给(ji)墩(dun)台(tai)及(ji)基础。钢(gang)(gang)桁(heng)(heng)(heng)梁(liang)除(chu)承(cheng)受竖向(xiang)(xiang)(xiang)荷(he)载(zai)外，还承(cheng)受横(heng)向(xiang)(xiang)(xiang)水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)荷(he)载(zai)(风力、列车横(heng)向(xiang)(xiang)(xiang)摇摆力和(he)曲线桥(qiao)上(shang)的(de)(de)(de)(de)(de)离心(xin)力)。由(you)(you)水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)纵(zong)(zong)(zong)向(xiang)(xiang)(xiang)联(lian)(lian)结系(xi)直接承(cheng)担(dan)(dan)并(bing)向(xiang)(xiang)(xiang)下(xia)传(chuan)(chuan)递。在两片(pian)主(zhu)桁(heng)(heng)(heng)对应的(de)(de)(de)(de)(de)弦(xian)杆(gan)之间，加(jia)设若干水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)布置(zhi)的(de)(de)(de)(de)(de)撑(cheng)杆(gan)，并(bing)与(yu)主(zhu)桁(heng)(heng)(heng)弦(xian)杆(gan)共(gong)同组成(cheng)一个水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)桁(heng)(heng)(heng)架(jia)，叫做(zuo)水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)纵(zong)(zong)(zong)向(xiang)(xiang)(xiang)联(lian)(lian)结系(xi)，简称平(ping)(ping)(ping)(ping)(ping)纵(zong)(zong)(zong)联(lian)(lian)。在上(shang)弦(xian)平(ping)(ping)(ping)(ping)(ping)面(mian)(mian)的(de)(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)纵(zong)(zong)(zong)联(lian)(lian)，称为(wei)上(shang)平(ping)(ping)(ping)(ping)(ping)纵(zong)(zong)(zong)联(lian)(lian)，在下(xia)弦(xian)平(ping)(ping)(ping)(ping)(ping)面(mian)(mian)的(de)(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)纵(zong)(zong)(zong)联(lian)(lian)，称为(wei)下(xia)平(ping)(ping)(ping)(ping)(ping)纵(zong)(zong)(zong)联(lian)(lian)。下(xia)平(ping)(ping)(ping)(ping)(ping)纵(zong)(zong)(zong)联(lian)(lian)承(cheng)担(dan)(dan)的(de)(de)(de)(de)(de)横(heng)向(xiang)(xiang)(xiang)水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)力可直接通(tong)过(guo)支(zhi)(zhi)(zhi)座(zuo)传(chuan)(chuan)给(ji)墩(dun)台(tai)。上(shang)平(ping)(ping)(ping)(ping)(ping)纵(zong)(zong)(zong)联(lian)(lian)两端则支(zhi)(zhi)(zhi)承(cheng)在桥(qiao)门架(jia)(portalbracing)顶端。

跨(kua)度(du)(du)不(bu)大(da)(da)时适宜(yi)采(cai)用。为了(le)减(jian)小(xiao)(xiao)主梁(liang)(liang)(liang)(liang)(liang)间(jian)(jian)距(ju)，减(jian)小(xiao)(xiao)底板(ban)横向(xiang)(xiang)跨(kua)度(du)(du)，利用铁(tie)路限(xian)界(jie)下(xia)部缩小(xiao)(xiao)部分，把腹(fu)板(ban)做成斜(xie)的，就变成斜(xie)墙式(shi)(shi)Γ形(xing)(xing)槽(cao)型梁(liang)(liang)(liang)(liang)(liang)了(le)，斜(xie)墙式(shi)(shi)Γ形(xing)(xing)槽(cao)型梁(liang)(liang)(liang)(liang)(liang)由于梁(liang)(liang)(liang)(liang)(liang)底宽(kuan)度(du)(du)减(jian)小(xiao)(xiao)，使支座横向(xiang)(xiang)布(bu)置(zhi)(zhi)(zhi)更容易，使下(xia)部桥(qiao)墩横向(xiang)(xiang)尺寸(cun)减(jian)小(xiao)(xiao)，节省了(le)工(gong)(gong)程量(liang)，增加了(le)景观(guan)效(xiao)果。箱(xiang)形(xing)(xing)槽(cao)型梁(liang)(liang)(liang)(liang)(liang)抗扭刚度(du)(du)大(da)(da)，跨(kua)度(du)(du)较(jiao)大(da)(da)时适宜(yi)采(cai)用，刚度(du)(du)增大(da)(da)同时，截(jie)(jie)面(mian)(mian)尺寸(cun)也相(xiang)应增大(da)(da)，桥(qiao)面(mian)(mian)宽(kuan)度(du)(du)比I形(xing)(xing)、Γ形(xing)(xing)都要大(da)(da)，增加了(le)梁(liang)(liang)(liang)(liang)(liang)重，如采(cai)用预(yu)制架(jia)设(she)更困难(nan)，支座横向(xiang)(xiang)布(bu)置(zhi)(zhi)(zhi)更困难(nan)、桥(qiao)墩横向(xiang)(xiang)尺寸(cun)更大(da)(da)，增加了(le)工(gong)(gong)程量(liang)，景观(guan)效(xiao)果稍(shao)差，但箱(xiang)型结(jie)构(gou)(gou)的箱(xiang)体内空间(jian)(jian)也为附属设(she)施和(he)维修养(yang)护通道(dao)(dao)(dao)的设(she)置(zhi)(zhi)(zhi)提供了(le)空间(jian)(jian)。槽(cao)形(xing)(xing)梁(liang)(liang)(liang)(liang)(liang)桥(qiao)面(mian)(mian)布(bu)置(zhi)(zhi)(zhi)形(xing)(xing)式(shi)(shi)城市轨道(dao)(dao)(dao)交(jiao)通中的槽(cao)形(xing)(xing)梁(liang)(liang)(liang)(liang)(liang)和(he)U形(xing)(xing)梁(liang)(liang)(liang)(liang)(liang)城市轨道(dao)(dao)(dao)交(jiao)通U形(xing)(xing)梁(liang)(liang)(liang)(liang)(liang)桥(qiao)道(dao)(dao)(dao)板(ban)的受(shou)(shou)力(li)高速铁(tie)路U形(xing)(xing)梁(liang)(liang)(liang)(liang)(liang)分离(li)式(shi)(shi)预(yu)应力(li)混凝土槽(cao)形(xing)(xing)粱U粱的特点（优缺点）降(jiang)低主梁(liang)(liang)(liang)(liang)(liang)高度(du)(du)，减(jian)小(xiao)(xiao)道(dao)(dao)(dao)床(chuang)板(ban)的厚度(du)(du)，结(jie)构(gou)(gou)体量(liang)可以(yi)做得较(jiao)轻(qing)巧；适应岛式(shi)(shi)车站线路分离(li)的要求，保证站内桥(qiao)梁(liang)(liang)(liang)(liang)(liang)与站外桥(qiao)梁(liang)(liang)(liang)(liang)(liang)协调一致(zhi)；道(dao)(dao)(dao)床(chuang)板(ban)的宽(kuan)跨(kua)比较(jiao)小(xiao)(xiao)，剪力(li)滞(zhi)效(xiao)应小(xiao)(xiao)，道(dao)(dao)(dao)床(chuang)板(ban)可全(quan)截(jie)(jie)面(mian)(mian)参与主梁(liang)(liang)(liang)(liang)(liang)受(shou)(shou)力(li)，提高了(le)截(jie)(jie)面(mian)(mian)的利用率；道(dao)(dao)(dao)床(chuang)板(ban)的计(ji)(ji)算(suan)跨(kua)度(du)(du)小(xiao)(xiao)，道(dao)(dao)(dao)床(chuang)板(ban)的受(shou)(shou)力(li)较(jiao)小(xiao)(xiao)；两(liang)主梁(liang)(liang)(liang)(liang)(liang)的受(shou)(shou)力(li)明确，避(bi)免了(le)单线加载时的偏载效(xiao)应；线间(jian)(jian)距(ju)须加宽(kuan)，桥(qiao)面(mian)(mian)宽(kuan)，高架(jia)桥(qiao)整体体量(liang)大(da)(da)；无法进行(xing)交(jiao)叉、渡(du)线区(qu)域的桥(qiao)梁(liang)(liang)(liang)(liang)(liang)设(she)计(ji)(ji)。焊接(jie)机(ji)器人(ren)封闭焊接(jie)底腹(fu)板(ban)筋箍筋；

同时应(ying)(ying)严格(ge)控制梁(liang)(liang)(liang)(liang)上荷载，不(bu)得(de)随意堆放(fang)钢(gang)(gang)(gang)材、模板等(deng)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)材料。悬臂法施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)时挂篮重也不(bu)宜超过(guo)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)图设(she)(she)(she)(she)(she)计(ji)(ji)重量，同时应(ying)(ying)根据(ju)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)时天气状况(kuang)等(deng)各种现场因素进行(xing)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)监控，调整施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)细(xi)节，确(que)保(bao)(bao)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)安全。3预(yu)应(ying)(ying)力(li)连(lian)续梁(liang)(liang)(liang)(liang)桥(qiao)(qiao)设(she)(she)(she)(she)(she)计(ji)(ji)与(yu)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)相(xiang)结合设(she)(she)(she)(she)(she)计(ji)(ji)决定施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，一(yi)座桥(qiao)(qiao)梁(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)成功与(yu)否首先(xian)取决于设(she)(she)(she)(she)(she)计(ji)(ji)是否合理。设(she)(she)(she)(she)(she)计(ji)(ji)前应(ying)(ying)详(xiang)细(xi)调查桥(qiao)(qiao)址地形、地物、地质、水(shui)文、交通(tong)等(deng)情况(kuang)，选定结构跨径和施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)艺(yi)，根据(ju)选定的(de)(de)(de)(de)(de)(de)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)艺(yi)进行(xing)结构计(ji)(ji)算与(yu)设(she)(she)(she)(she)(she)计(ji)(ji)，这就(jiu)要(yao)求设(she)(she)(she)(she)(she)计(ji)(ji)者对施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)艺(yi)了然于心，以下介绍各施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)艺(yi)对设(she)(she)(she)(she)(she)计(ji)(ji)的(de)(de)(de)(de)(de)(de)影响，并阐述其(qi)设(she)(she)(she)(she)(she)计(ji)(ji)的(de)(de)(de)(de)(de)(de)关键点(dian)。采用(yong)满堂支架法施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，符(fu)合普通(tong)的(de)(de)(de)(de)(de)(de)设(she)(she)(she)(she)(she)计(ji)(ji)思维，设(she)(she)(she)(she)(she)计(ji)(ji)时需(xu)(xu)(xu)考(kao)(kao)虑(lv)的(de)(de)(de)(de)(de)(de)外界因素较少，一(yi)般只需(xu)(xu)(xu)考(kao)(kao)虑(lv)混(hun)凝土龄期、预(yu)应(ying)(ying)力(li)损(sun)失即可。采用(yong)移动支架法施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)艺(yi)时，由于分(fen)段施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，分(fen)段位置一(yi)般在(zai)1/4跨附(fu)近(jin)，弯矩(ju)、剪力(li)都(dou)比(bi)较小，同时设(she)(she)(she)(she)(she)计(ji)(ji)时需(xu)(xu)(xu)考(kao)(kao)虑(lv)钢(gang)(gang)(gang)束(shu)的(de)(de)(de)(de)(de)(de)接(jie)长，需(xu)(xu)(xu)接(jie)长的(de)(de)(de)(de)(de)(de)钢(gang)(gang)(gang)束(shu)在(zai)分(fen)段截面前后1m长度(du)范围(wei)内(nei)应(ying)(ying)保(bao)(bao)持直(zhi)线(xian)段，避(bi)免连(lian)接(jie)器与(yu)钢(gang)(gang)(gang)束(shu)不(bu)垂直(zhi)导致(zhi)钢(gang)(gang)(gang)束(shu)受损(sun)。4结束(shu)语多数(shu)的(de)(de)(de)(de)(de)(de)预(yu)应(ying)(ying)力(li)钢(gang)(gang)(gang)筋(jin)混(hun)凝土连(lian)续箱梁(liang)(liang)(liang)(liang)桥(qiao)(qiao)的(de)(de)(de)(de)(de)(de)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)及(ji)(ji)(ji)运(yun)行(xing)阶段的(de)(de)(de)(de)(de)(de)使用(yong)及(ji)(ji)(ji)受力(li)情况(kuang)都(dou)得(de)到了较好的(de)(de)(de)(de)(de)(de)反馈，可见再设(she)(she)(she)(she)(she)计(ji)(ji)上满足(zu)标准，施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)过(guo)程中(zhong)重视操作的(de)(de)(de)(de)(de)(de)难(nan)度(du)性及(ji)(ji)(ji)看实(shi)践性，就(jiu)会减少施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)桥(qiao)(qiao)梁(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)成品(pin)与(yu)预(yu)期设(she)(she)(she)(she)(she)计(ji)(ji)产(chan)生(sheng)的(de)(de)(de)(de)(de)(de)差度(du)。箱梁(liang)(liang)(liang)(liang)骨架加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)流(liu)水(shui)线(xian)达到提升生(sheng)产(chan)规范化的(de)(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)(de)。陕西流(liu)水(shui)线(xian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)(de)(de)(de)铁(tie)路箱梁(liang)(liang)(liang)(liang)自动生(sheng)产(chan)线(xian)好不(bu)好用(yong)

成都固特机械有限(xian)责任公(gong)司与中国建筑土木建设有限(xian)公(gong)司联合开(kai)发的(de)箱梁钢筋骨架生(sheng)产线项(xiang)目应(ying)运而生(sheng)。上海绿色环保(bao)的(de)铁(tie)路箱梁自动生(sheng)产线厂家直销

端(duan)(duan)(duan)头及横向(xiang)连接(jie)钢(gang)筋(jin)(jin)(jin)采(cai)用(yong)(yong)在(zai)外模(mo)上预留标(biao)准孔洞(dong)的方(fang)法定位(wei)，确保(bao)(bao)(bao)预埋钢(gang)筋(jin)(jin)(jin)的准确定位(wei)。注(zhu)意事项(xiang)：1、钢(gang)筋(jin)(jin)(jin)骨架的箍(gu)筋(jin)(jin)(jin)垂(chui)直(zhi)(zhi)；箍(gu)筋(jin)(jin)(jin)与水(shui)平筋(jin)(jin)(jin)交(jiao)点处要用(yong)(yong)绑扎(zha)丝(si)(si)绑扎(zha)；所有的相(xiang)交(jiao)点均应全(quan)部(bu)绑扎(zha)。2、钢(gang)筋(jin)(jin)(jin)安装绑扎(zha)要控(kong)制位(wei)置，保(bao)(bao)(bao)证牢固，采(cai)用(yong)(yong)镀锌铁丝(si)(si)，绑扎(zha)采(cai)用(yong)(yong)逐(zhu)点改变(bian)绕丝(si)(si)方(fang)向(xiang)的八字形(xing)方(fang)式交(jiao)错(cuo)扎(zha)接(jie)，对于(yu)直(zhi)(zhi)径25mm钢(gang)筋(jin)(jin)(jin)绑扎(zha)宜采(cai)用(yong)(yong)双对角线(xian)的十字形(xing)方(fang)式扎(zha)接(jie)。不(bu)得(de)有变(bian)形(xing)或(huo)松(song)脱(tuo)现象。3、绑扎(zha)采(cai)用(yong)(yong)混凝(ning)土(tu)(tu)垫(dian)块强度(du)不(bu)低于(yu)混凝(ning)土(tu)(tu)设(she)计(ji)强度(du)（≥50Mpa），混凝(ning)土(tu)(tu)保(bao)(bao)(bao)护层满足设(she)计(ji)要求。垫(dian)块应分散布(bu)置、相(xiang)互错(cuo)开，不(bu)得(de)横贯保(bao)(bao)(bao)护层的全(quan)部(bu)截面，垫(dian)块在(zai)侧面和底面所布(bu)设(she)的数(shu)量不(bu)少于(yu)4个/m2。4、波纹管(guan)(guan)：金属波纹管(guan)(guan)安设(she)时严格按照坐标(biao)位(wei)置控(kong)制，保(bao)(bao)(bao)持良好线(xian)型。波纹管(guan)(guan)接(jie)头处用(yong)(yong)长(zhang)为直(zhi)(zhi)径大一(yi)级的波纹管(guan)(guan)为套管(guan)(guan)接(jie)好，然后用(yong)(yong)防(fang)水(shui)胶带缠裹以(yi)防(fang)接(jie)口松(song)动(dong)拉脱(tuo)或(huo)漏浆(jiang)。、预制小箱梁(liang)(liang)混凝(ning)土(tu)(tu)施工、混凝(ning)土(tu)(tu)浇(jiao)筑方(fang)法1、箱梁(liang)(liang)混凝(ning)土(tu)(tu)浇(jiao)注(zhu)由梁(liang)(liang)的一(yi)端(duan)(duan)(duan)向(xiang)另一(yi)端(duan)(duan)(duan)斜向(xiang)分层浇(jiao)筑振捣(dao)，浇(jiao)筑顺序按照先浇(jiao)注(zhu)底板(ban)(ban)再浇(jiao)注(zhu)腹板(ban)(ban)，浇(jiao)注(zhu)腹板(ban)(ban)时纵向(xiang)分段、水(shui)平分层浇(jiao)向(xiang)另一(yi)端(duan)(duan)(duan)，在(zai)距梁(liang)(liang)端(duan)(duan)(duan)4-5m处，从梁(liang)(liang)的另一(yi)端(duan)(duan)(duan)布(bu)料，防(fang)止水(shui)泥浆(jiang)聚集到梁(liang)(liang)端(duan)(duan)(duan)造成梁(liang)(liang)体强度(du)不(bu)均匀。2、为避(bi)免腹板(ban)(ban)、翼板(ban)(ban)交(jiao)界处因腹板(ban)(ban)混凝(ning)土(tu)(tu)沉落而造成纵向(xiang)裂纹。上海绿色环保(bao)(bao)(bao)的铁路箱梁(liang)(liang)自动(dong)生产线(xian)厂家直(zhi)(zhi)销

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