主要建筑
正陽門城樓
門(men)城(cheng)(cheng)(cheng)樓坐落在(zai)磚(zhuan)砌城(cheng)(cheng)(cheng)臺(tai)(tai)上(shang),城(cheng)(cheng)(cheng)臺(tai)(tai)上(shang)窄下寬(kuan),有(you)(you)(you)明顯的(de)收分(fen),寬(kuan)95米(mi)(mi)(mi),厚(hou)31.45米(mi)(mi)(mi),高(gao)14.7米(mi)(mi)(mi),城(cheng)(cheng)(cheng)臺(tai)(tai)南(nan)北(bei)上(shang)沿各有(you)(you)(you)1.2米(mi)(mi)(mi)高(gao)的(de)宇(yu)墻(qiang),占地(di)3047平方米(mi)(mi)(mi),城(cheng)(cheng)(cheng)臺(tai)(tai)上(shang)以(yi)城(cheng)(cheng)(cheng)磚(zhuan)海墁。城(cheng)(cheng)(cheng)樓為(wei)灰筒瓦(wa)綠琉璃剪邊重檐(yan)歇山(shan)三(san)(san)滴水樓閣式(shi)建筑,樓脊飾(shi)龍頭獸(shou)吻,每面(mian)有(you)(you)(you)檐(yan)柱(zhu)(zhu)(zhu)、老檐(yan)柱(zhu)(zhu)(zhu)和金(jin)柱(zhu)(zhu)(zhu)三(san)(san)層(ceng)柱(zhu)(zhu)(zhu)子,朱(zhu)紅梁柱(zhu)(zhu)(zhu),金(jin)花彩繪,樓上(shang)樓下四面(mian)均設(she)門(men),面(mian)闊(kuo)七間,進深(shen)三(san)(san)間,上(shang)下設(she)回廊,上(shang)層(ceng)前后(hou)裝菱花格隔(ge)扇(shan)門(men)窗,下層(ceng)為(wei)朱(zhu)紅磚(zhuan)墻(qiang),明間及兩側(ce)正(zheng)面(mian)各有(you)(you)(you)實榻大門(men)一座。城(cheng)(cheng)(cheng)樓兩端沿城(cheng)(cheng)(cheng)墻(qiang)內側(ce)設(she)斜坡馬道以(yi)通(tong)(tong)上(shang)下。通(tong)(tong)面(mian)寬(kuan)41米(mi)(mi)(mi),通(tong)(tong)進深(shen)21米(mi)(mi)(mi),樓身寬(kuan)36.7米(mi)(mi)(mi),深(shen)16.5米(mi)(mi)(mi),高(gao)27.3米(mi)(mi)(mi),整個城(cheng)(cheng)(cheng)樓通(tong)(tong)高(gao)43.65米(mi)(mi)(mi),為(wei)老北(bei)京(jing)所有(you)(you)(you)城(cheng)(cheng)(cheng)門(men)樓中最高(gao)者。城(cheng)(cheng)(cheng)樓外(wai)側(ce)重檐(yan)以(yi)上(shang)懸掛(gua)木(mu)質大門(men)匾。城(cheng)(cheng)(cheng)門(men)洞為(wei)拱券式(shi),開在(zai)城(cheng)(cheng)(cheng)臺(tai)(tai)正(zheng)中,五(wu)伏五(wu)券,內券高(gao)9.49米(mi)(mi)(mi),寬(kuan)7.08米(mi)(mi)(mi),外(wai)券高(gao)6.29米(mi)(mi)(mi),寬(kuan)6米(mi)(mi)(mi)。
箭樓
正(zheng)(zheng)陽門(men)(men)的(de)(de)箭樓(lou)(lou)是(shi)(shi)最能體現古代軍事防御(yu)思想和技術水(shui)平的(de)(de)建筑,為(wei)一磚砌(qi)堡壘式建筑,雄(xiong)踞于磚砌(qi)城(cheng)(cheng)臺(tai)之(zhi)上。城(cheng)(cheng)臺(tai)高約12米(mi),上窄下寬(kuan),亦有(you)明(ming)顯(xian)收(shou)分。城(cheng)(cheng)臺(tai)正(zheng)(zheng)中辟(pi)券門(men)(men),與城(cheng)(cheng)門(men)(men)相對,五(wu)(wu)伏五(wu)(wu)券,門(men)(men)洞內設"千斤閘(zha)",南(nan)(nan)側(ce)寬(kuan)10米(mi),北(bei)(bei)側(ce)寬(kuan)12.4米(mi),占地面(mian)積2147平方米(mi)。箭樓(lou)(lou)上下四(si)層(ceng)(ceng)(ceng),樓(lou)(lou)頂為(wei)灰筒綠琉璃剪(jian)邊重檐歇山(shan)式,飾(shi)綠琉璃脊獸。南(nan)(nan)、東、西三(san)面(mian)辟(pi)箭窗,以作(zuo)對外防御(yu)(射擊)之(zhi)用,南(nan)(nan)面(mian)四(si)層(ceng)(ceng)(ceng),每(mei)層(ceng)(ceng)(ceng)13孔,東、西各四(si)層(ceng)(ceng)(ceng),每(mei)層(ceng)(ceng)(ceng)4孔,連抱廈(sha)2孔,共辟(pi)86孔。箭樓(lou)(lou)的(de)(de)結構為(wei)前樓(lou)(lou)后廈(sha),面(mian)闊七間,寬(kuan)62米(mi),進深20米(mi);北(bei)(bei)出抱廈(sha)廡座,面(mian)闊五(wu)(wu)間,寬(kuan)42米(mi),進深12米(mi),整座樓(lou)(lou)通高35.37米(mi)。在(zai)明(ming)清北(bei)(bei)京城(cheng)(cheng)垣的(de)(de)箭樓(lou)(lou)中,唯正(zheng)(zheng)陽門(men)(men)箭樓(lou)(lou)辟(pi)門(men)(men),亦最為(wei)高大雄(xiong)偉。形式比(bi)較獨特,一直被看成是(shi)(shi)老北(bei)(bei)京的(de)(de)象征(zheng)。
甕城
箭樓(lou)與(yu)城(cheng)(cheng)(cheng)(cheng)門(men)(men)(men)樓(lou)之間為甕(weng)城(cheng)(cheng)(cheng)(cheng),甕(weng)城(cheng)(cheng)(cheng)(cheng)為長方形,南(nan)(nan)北(bei)(bei)長108米(mi),東(dong)西寬88.65米(mi),東(dong)北(bei)(bei)、西北(bei)(bei)兩(liang)內(nei)角(jiao)為直角(jiao),東(dong)南(nan)(nan)、西南(nan)(nan)兩(liang)外角(jiao)為抹(mo)角(jiao),甕(weng)城(cheng)(cheng)(cheng)(cheng)將城(cheng)(cheng)(cheng)(cheng)垣(yuan)、城(cheng)(cheng)(cheng)(cheng)門(men)(men)(men)樓(lou)、箭樓(lou)和兩(liang)座閘(zha)樓(lou)連接起來。甕(weng)城(cheng)(cheng)(cheng)(cheng)城(cheng)(cheng)(cheng)(cheng)垣(yuan)與(yu)城(cheng)(cheng)(cheng)(cheng)墻高度相同(高約11.36米(mi)),略窄(zhai)些,內(nei)為土墻心外甃大城(cheng)(cheng)(cheng)(cheng)磚。上(shang)頂甬道海墁城(cheng)(cheng)(cheng)(cheng)磚,外側(ce)筑雉(zhi)堞,內(nei)側(ce)筑女兒墻,內(nei)有空場(chang)。甕(weng)城(cheng)(cheng)(cheng)(cheng)四面各(ge)開辟拱券式門(men)(men)(men)洞(dong)一座,東(dong)、西、南(nan)(nan)為吊落式閘(zha)門(men)(men)(men)。北(bei)(bei)門(men)(men)(men)在(zai)宏偉的(de)城(cheng)(cheng)(cheng)(cheng)樓(lou)之下(xia),南(nan)(nan)門(men)(men)(men)在(zai)高大的(de)箭樓(lou)之下(xia),東(dong)西門(men)(men)(men)則在(zai)甕(weng)城(cheng)(cheng)(cheng)(cheng)東(dong)西正中的(de)閘(zha)樓(lou)之下(xia)。
甕城內,城樓南(nan)側靠(kao)北門(men)(men)兩側,建有關帝(di)(di)廟(miao)(miao)、觀音廟(miao)(miao)各一座,關帝(di)(di)廟(miao)(miao)居西,觀音廟(miao)(miao)居東,均(jun)為南(nan)向,一層殿(dian)宇、兩側廡廊,規模較小。但兩廟(miao)(miao)的(de)香火很旺。明清時,北京內城的(de)九座城門(men)(men)甕城內,全部依例建有廟(miao)(miao)宇,除德勝門(men)(men)和安定(ding)門(men)(men)供奉(feng)(feng)真(zhen)武大帝(di)(di)外,余均(jun)供奉(feng)(feng)關帝(di)(di),以(yi)祈護國(guo)佑民(min)。然(ran)而九門(men)(men)之中(zhong),以(yi)正陽門(men)(men)關帝(di)(di)廟(miao)(miao)規模最大,傳(chuan)說其中(zhong)關羽的(de)塑像原系明朝內廷所供奉(feng)(feng),因(yin)此香火一直興盛。明清時期正陽門(men)(men)關帝(di)(di)、觀音兩廟(miao)(miao),曾留下了許多奉(feng)(feng)祀、紀事的(de)碑刻、詩文(wen),是(shi)研究北京城垣(yuan)建設史(shi)和社會文(wen)化史(shi)珍貴的(de)石(shi)刻文(wen)獻(xian)。
甕城(cheng)東西(xi)兩側(ce)建有閘(zha)樓(lou),閘(zha)樓(lou)面闊(kuo)三(san)間,灰筒瓦綠琉(liu)璃瓦剪邊,歇山小式(shi)屋(wu)頂,外側(ce)辟箭窗兩排(pai)共12孔,下設(she)閘(zha)門以通行人。
雉堞和女兒墻
雉堞和女(nv)兒(er)墻(qiang)是(shi)沿(yan)城(cheng)垣(yuan)(yuan)上頂(ding)(ding)內(nei)外(wai)修筑(zhu)的矮垣(yuan)(yuan)墻(qiang)。雉堞位(wei)于(yu)城(cheng)垣(yuan)(yuan)頂(ding)(ding)外(wai)側,筑(zhu)為(wei)齒狀(zhuang),起盾牌作用,以(yi)(yi)保護守城(cheng)者(zhe)免遭敵人攻(gong)擊。女(nv)兒(er)墻(qiang)亦稱女(nv)墻(qiang),為(wei)城(cheng)垣(yuan)(yuan)頂(ding)(ding)內(nei)側修筑(zhu)的矮垣(yuan)(yuan)墻(qiang),作用是(shi)攔擋守城(cheng)者(zhe),免于(yu)摔下。老北京內(nei)城(cheng)雉堞高(gao)為(wei)1.9米(mi),寬(kuan)為(wei)1.5米(mi),厚(hou)為(wei)0.75米(mi),其(qi)間(jian)距(ju)在(zai)0.5~0.8米(mi)之間(jian)。外(wai)墻(qiang)雉堞高(gao)1.3米(mi),寬(kuan)約1.2米(mi),厚(hou)為(wei)0.5米(mi)左(zuo)右,其(qi)間(jian)距(ju)在(zai)0.5米(mi)左(zuo)右,內(nei)外(wai)城(cheng)共有雉堞20772個。雉堞都(dou)是(shi)用白灰漿(jiang)、大(da)城(cheng)磚砌(qi)成(cheng)。平(ping)頂(ding)(ding),四(si)側四(si)棱見角,非常牢(lao)固。女(nv)兒(er)墻(qiang)高(gao)約1.2米(mi),厚(hou)約0.75米(mi),以(yi)(yi)白灰漿(jiang)、大(da)城(cheng)磚沿(yan)城(cheng)垣(yuan)(yuan)形制砌(qi)成(cheng),上頂(ding)(ding)一般砌(qi)成(cheng)饅(man)頭頂(ding)(ding)或(huo)是(shi)泥鰍背(bei)頂(ding)(ding)。正陽門與內(nei)城(cheng)其(qi)它八門一樣,城(cheng)臺外(wai)側建雉堞,內(nei)側建女(nv)墻(qiang),規(gui)制亦與城(cheng)垣(yuan)(yuan)相(xiang)同。
馬道
馬道是供守城(cheng)部隊上下城(cheng)用的專用斜(xie)道,它附(fu)貼(tie)在城(cheng)墻內側墻體(ti)上,坡度約十(shi)五度到三十(shi)度之間(jian),馬道寬約四、五米,斜(xie)道外(wai)側砌筑(zhu)一道矮墻。
內(nei)城(cheng)(cheng)(cheng)共有二(er)十七對(dui)馬(ma)(ma)(ma)(ma)道(dao)(dao),每對(dui)馬(ma)(ma)(ma)(ma)道(dao)(dao)呈內(nei)八(ba)字形或外八(ba)字形,從左右兩條(tiao)(tiao)馬(ma)(ma)(ma)(ma)道(dao)(dao)都可以到達城(cheng)(cheng)(cheng)頂(ding)。正陽門設有馬(ma)(ma)(ma)(ma)道(dao)(dao)兩條(tiao)(tiao),均(jun)在(zai)月(yue)城(cheng)(cheng)(cheng)內(nei)緊貼城(cheng)(cheng)(cheng)垣(yuan)內(nei)壁而筑,分(fen)別通向(xiang)城(cheng)(cheng)(cheng)樓與箭樓(今已廢)。建(jian)筑方法是將馬(ma)(ma)(ma)(ma)道(dao)(dao)土(tu)心(xin)與城(cheng)(cheng)(cheng)垣(yuan)土(tu)心(xin)夯(hang)為一(yi)(yi)(yi)整(zheng)體(ti),另一(yi)(yi)(yi)側以白(bai)灰漿、大(da)城(cheng)(cheng)(cheng)磚(zhuan)(zhuan)砌成一(yi)(yi)(yi)米(mi)(mi)厚的(de)磚(zhuan)(zhuan)層(ceng),成為馬(ma)(ma)(ma)(ma)道(dao)(dao)的(de)外包(bao)皮磚(zhuan)(zhuan)層(ceng)。在(zai)這層(ceng)外包(bao)皮磚(zhuan)(zhuan)上(shang),與馬(ma)(ma)(ma)(ma)道(dao)(dao)斜面(mian)平行砌起一(yi)(yi)(yi)道(dao)(dao)矮墻(qiang),其長與馬(ma)(ma)(ma)(ma)道(dao)(dao)斜面(mian)同,寬(kuan)約0.75米(mi)(mi)、高約1.2米(mi)(mi),稱為馬(ma)(ma)(ma)(ma)道(dao)(dao)扶手墻(qiang)。馬(ma)(ma)(ma)(ma)道(dao)(dao)土(tu)心(xin)部分(fen)是以黃土(tu)夯(hang)成,其上(shang)再(zai)夯(hang)筑一(yi)(yi)(yi)層(ceng)約50厘米(mi)(mi)的(de)三合土(tu),再(zai)上(shang)以大(da)城(cheng)(cheng)(cheng)磚(zhuan)(zhuan)立砌一(yi)(yi)(yi)層(ceng),成"礓碴(cha)"式馬(ma)(ma)(ma)(ma)道(dao)(dao)路面(mian)。
鋪舍
鋪舍是(shi)城(cheng)(cheng)垣(yuan)(yuan)頂上(shang)(shang)駐軍值班房(fang)(fang),供守城(cheng)(cheng)兵(bing)士休息或(huo)堆放(fang)守城(cheng)(cheng)武器(qi)等(deng)物(wu)之用(yong)。明(ming)(ming)代(dai)(dai)稱為鋪舍房(fang)(fang),清代(dai)(dai)稱堆撥(bo)房(fang)(fang)。基本(ben)上(shang)(shang)是(shi)每(mei)座"馬面"之后(hou)的城(cheng)(cheng)垣(yuan)(yuan)頂上(shang)(shang)即筑有一(yi)所(suo),面闊三間(jian),進深一(yi)間(jian),為硬山式。陳(chen)宗藩《燕都叢(cong)考》中記(ji)述:內城(cheng)(cheng)垣(yuan)(yuan)上(shang)(shang)有"旗炮房(fang)(fang)九所(suo)",分布在九座城(cheng)(cheng)門樓旁,"堆撥(bo)房(fang)(fang)一(yi)百三十(shi)五所(suo),儲火藥(yao)房(fang)(fang)九十(shi)六所(suo)";外城(cheng)(cheng)垣(yuan)(yuan)上(shang)(shang)有"堆撥(bo)房(fang)(fang)四十(shi)三所(suo)"。所(suo)記(ji)雖為清代(dai)(dai)末年的情況(kuang),數字上(shang)(shang)也可(ke)能有所(suo)出(chu)入,但(dan)可(ke)表明(ming)(ming)其(qi)存(cun)在和(he)作用(yong),因為清代(dai)(dai)對于城(cheng)(cheng)垣(yuan)(yuan)設施是(shi)沿循明(ming)(ming)制的。②正(zheng)陽(yang)門城(cheng)(cheng)樓、箭樓、甕城(cheng)(cheng)及其(qi)附屬建筑正(zheng)陽(yang)橋、雉堞(die)、登城(cheng)(cheng)馬道、鋪舍等(deng)這一(yi)組城(cheng)(cheng)市防御工事建筑群,布局合理,造型(xing)莊(zhuang)嚴,氣勢凝重,顯示了中華(hua)民族建筑藝術的獨特風格(ge)。
作用價值
在北(bei)京(jing)(jing)(jing)城(cheng)諸門(men)(men)中(zhong),正(zheng)陽(yang)門(men)(men)規制最為(wei)隆崇(chong),是中(zhong)國(guo)封(feng)建(jian)(jian)社會后期城(cheng)市布局、軍事防御、禮儀制度和建(jian)(jian)筑(zhu)藝(yi)(yi)術的形象體現,也(ye)是老(lao)北(bei)京(jing)(jing)(jing)歷(li)(li)(li)史文化的重要載體。正(zheng)陽(yang)門(men)(men)作(zuo)為(wei)北(bei)京(jing)(jing)(jing)僅(jin)有的一座城(cheng)樓(lou)、箭樓(lou)保(bao)存(cun)完好(hao)的封(feng)建(jian)(jian)帝都(dou)之門(men)(men),既是歷(li)(li)(li)史文化遺存(cun),也(ye)是北(bei)京(jing)(jing)(jing)古都(dou)特色的絕佳載體,人(ren)(ren)文蘊(yun)涵深厚。正(zheng)陽(yang)門(men)(men)作(zuo)為(wei)不可再生(sheng)的文物(wu)資源(yuan),以其無聲(sheng)的建(jian)(jian)筑(zhu)語言(yan),不僅(jin)向世人(ren)(ren)展示出(chu)封(feng)建(jian)(jian)社會都(dou)邑城(cheng)垣中(zhong)的一個局部(bu),而且,在古代建(jian)(jian)筑(zhu)、文化藝(yi)(yi)術、民(min)俗禮儀、王朝歷(li)(li)(li)史等(deng)方面,都(dou)有其獨立的存(cun)在意義與研究價值(zhi),是北(bei)京(jing)(jing)(jing)歷(li)(li)(li)史文化名城(cheng)的重要組成部(bu)分、老(lao)北(bei)京(jing)(jing)(jing)城(cheng)的標志性建(jian)(jian)筑(zhu)。